Long-Term Safety Study Of Tofacitinib In Patients With Juvenile Idiopathic Arthritis

Recruitment Status
COMPLETED - HAS RESULTS
(See Contacts and Locations)Verified February 2026 by Pfizer
Sponsor
Pfizer
Information Provided by (Responsible Party)
Pfizer
Clinicaltrials.gov Identifier
NCT01500551
Other Study ID Numbers:
A3921145
First Submitted
December 21, 2011
First Posted
December 27, 2011
Results First Posted
January 26, 2026
Last Update Posted
March 22, 2026
Last Verified
February 2026

ClinicalTrials.gov processed this data on March 2026Link to the current ClinicalTrials.gov record .

History of Changes

Study Details

Study Description

This is a Phase 2/3, long term, open-label, follow-up study. Subjects will have previously participated in qualifying/index JIA studies of tofacitinib. Those who have already completed such participation and enroll outside the 14 day window following completion of the End of Study (EOS) Visit of the qualifying/index study will participate in a screening Visit to determine eligibility. A Baseline Visit will then occur within 28 days after the Screening Visit. For subjects who are completing participation in a qualifying study of tofacitinib and enrolling on the same day of the EOS Visit of the qualifying/index study, the EOS Visit of the qualifying/index study can be combined with the Screening and Baseline Visits for this study. The subjects who enroll within the 14 day window following completion of the EOS Visit of the qualifying/index study will participate in a combined Screening and Baseline Visit for this study. After the Baseline Visit, visits will occur at 1 month (1 month=30 days) and 3 months, then every 3 months thereafter as long as the subject remains in the study.

Approximately 340 participants are projected to enroll into this open label extension study after completing a qualifying/index study in the JIA program.

For subjects who entered this study from the A3921103 and A3921104 qualifying/index studies, their participation in this study ends after the first marketing approval of tofacitinib for the treatment of polyarticular course Juvenile Idiopathic Arthritis (pJIA) in any country. This study will end once the last subject, and all other subjects, who entered from index study A3921165 have completed approximately 1 year in this study, or after the first marketing approval of tofacitinib for the treatment of systemic JIA, whichever comes first.

The total duration of an individual subject's participation may vary depending upon when they enter the trial.

Condition or DiseaseIntervention/Treatment
Juvenile Idiopathic Arthritis
Drug: Tofacitinib

Study Design

Study TypeInterventional
Actual Enrollment302 participants
Design AllocationN/A
Interventional ModelSingle Group Assignment
MaskingNone (Open Label)
Primary PurposeTreatment
Official TitleA LONG-TERM, OPEN-LABEL FOLLOW-UP STUDY OF TOFACITINIB FOR TREATMENT OF JUVENILE IDIOPATHIC ARTHRITIS (JIA)
Study Start DateMarch 17, 2013
Actual Primary Completion DateFebruary 11, 2025
Actual Study Completion DateFebruary 11, 2025

Groups and Cohorts

Group/CohortIntervention/Treatment
Tofacitinib
All patients will be in tofacitinib treatment group.
Drug: Tofacitinib
Tofacitinib will be administered orally BID (twice daily) approximately 12 hours (±2 hours) apart, once in the morning and once in the evening, based on body weight for all subjects for all three index studies (A3921103, A3921104, and A3921165) 5 mg BID Dose Level: Body Weight (Dose in tablet \[mg BID\] or solution \[ml BID\]) 5 - \< 7 kg (2 mg or 2 ml) 7 - \< 10 kg (2.5 mg or 2.5 ml) 10 - \<15 kg (3 mg or 3 ml) 15 - \<25 kg (3.5 mg or 3.5 ml) 25 - \<40 kg (4 mg or 4 ml) \>=40 kg (5 mg or 5 ml) Oral solution (1 mg/mL concentration) will be used for subjects weighing \<40 kg. Oral tablets (5 mg) will be used for subjects weighing \>=40 kg; subjects who are unable to swallow tablets will have the option of taking oral solution. Subjects will swallow study tablets whole and will not manipulate or chew tablets prior to swallowing.

Outcome Measures

Primary Outcome Measures
  1. Number of Participants With Laboratory Test Abnormalities
    Parameters: Hematology (hemoglobin, hematocrit, erythrocytes, platelets, leukocytes, lymphocytes, lymphocytes/leukocytes, neutrophils, neutrophils/leukocytes, basophils, basophils/leukocytes, eosinophils, eosinophils/leukocytes, monocytes, monocytes/leukocytes, prothrombin international normalized ratio, erythrocyte sedimentation rate), clinical chemistry (bilirubin, direct/indirect bilirubin, aspartate/alanine aminotransferase, gamma glutamyl transferase, lactate dehydrogenase, alkaline phosphatase, protein, albumin, blood urea nitrogen, creatinine, cholesterol, high and low density lipoprotein cholesterol, Friedewald estimation, triglycerides, sodium, potassium, chloride, calcium, bicarbonate, glucose, creatine kinase, C reactive protein), urinalysis (specific gravity, potential of hydrogen (pH), glucose/ protein/ hemoglobin/ erythrocytes/ leukocytes, ketones, leukocyte esterase, hyaline casts, bacteria). Number of participants with at least 1 laboratory abnormality are reported.
  2. Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
    An adverse event (AE) was any untoward medical occurrence in a clinical investigation participant administered a product or medical device; the event need not necessarily had a causal relationship with the treatment or usage. A serious AE (SAE) was defined as any untoward medical occurrence at any dose that met one or more of the following criteria: resulted in death, was life-threatening (immediate risk of death), required inpatient hospitalization or prolongation of existing hospitalization, resulted in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions), resulted in congenital anomaly/birth defect. An TEAE was any AE that occurred following the start of study treatment in this study or increased in severity following the start of study treatment in this study. AE included both SAEs and all non-SAEs.
  3. Absolute Values of Body Weight at Baseline
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  4. Absolute Value of Body Weight at Month 12 and Its Change From Baseline at Month 12
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  5. Absolute Value of Body Weight at Month 24 and Its Change From Baseline at Month 24
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  6. Absolute Value of Body Weight at Month 36 and Its Change From Baseline at Month 36
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  7. Absolute Value of Body Weight at Month 48 and Its Change From Baseline at Month 48
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  8. Absolute Value of Body Weight at Month 60 and Its Change From Baseline at Month 60
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  9. Absolute Value of Body Weight at Month 72 and Its Change From Baseline at Month 72
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  10. Absolute Value of Body Weight at Month 84 and Its Change From Baseline at Month 84
    Body weight was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  11. Absolute Value of Height at Baseline
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  12. Absolute Value of Height at Month 12 and Its Change From Baseline at Month 12
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  13. Absolute Value of Height at Month 24 and Its Change From Baseline at Month 24
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  14. Absolute Value of Height at Month 36 and Its Change From Baseline at Month 36
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  15. Absolute Value of Height at Month 48 and Its Change From Baseline at Month 48
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  16. Absolute Value of Height at Month 60 and Its Change From Baseline at Month 60
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  17. Absolute Value of Height at Month 72 and Its Change From Baseline at Month 72
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  18. Absolute Value of Height at Month 84 and Its Change From Baseline at Month 84
    Height was collected to assess growth and physical development. Baseline value was based on the enrollment gap: either from the qualifying studies (A3921103 \[NCT01513902\], A3921104 \[NCT02592434\], or A3921165 \[NCT03000439\]) (when participants enrolled in the current extension study within 14 days of the last visit of the qualifying/ index study), or from the current extension study (A3921145 \[NCT01500551\]) (when enrollment was out of 14-day window).
  19. Number of Participants According to Tanner Stage at Baseline
    Pubertal development was measured using Tanner stage, by age group (2 to \<6 years, 6 to \<12 years, and 12 years or older) for males and females separately. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (fully developed breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes continue to enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size).
  20. Number of Participants With Shift in Tanner Stage From Baseline to Month 12
    Pubertal development was measured using Tanner stage, by age group and gender. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (full breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size). Number of participants are reported per shift in Tanner stage from Baseline to Month 12. Only rows with non-zero values were reported in this outcome measure.
  21. Number of Participants With Shift in Tanner Stage From Baseline to Month 24
    Pubertal development was measured using Tanner stage, by age group and gender. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (full breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size). Number of participants are reported per shift in Tanner stage from Baseline to Month 24. Only rows with non-zero values were reported in this outcome measure.
  22. Number of Participants With Shift in Tanner Stage From Baseline to Month 36
    Pubertal development was measured using Tanner stage, by age group and gender. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (full breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size). Number of participants are reported per shift in Tanner stage from Baseline to Month 36. Only rows with non-zero values were reported in this outcome measure.
  23. Number of Participants With Shift in Tanner Stage From Baseline to Month 48
    Pubertal development was measured using Tanner stage, by age group and gender. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (full breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size). Number of participants are reported per shift in Tanner stage from Baseline to Month 48. Only rows with non-zero values were reported in this outcome measure.
  24. Number of Participants With Shift in Tanner Stage From Baseline to Month 60
    Pubertal development was measured using Tanner stage, by age group and gender. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (full breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size). Number of participants are reported per shift in Tanner stage from Baseline to Month 60. Only rows with non-zero values were reported in this outcome measure.
  25. Number of Participants With Shift in Tanner Stage From Baseline to Month 72
    Pubertal development was measured using Tanner stage, by age group and gender. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (full breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size). Number of participants are reported per shift in Tanner stage from Baseline to Month 72. Only rows with non-zero values were reported in this outcome measure.
  26. Number of Participants With Shift in Tanner Stage From Baseline to Month 84
    Pubertal development was measured using Tanner stage, by age group and gender. Assessment included, 1) Male: pubic hair and size of genitalia and 2) Female: pubic hair and breast exam. There were 5 stages for each assessment type. Stages for, a) Pubic hair: 1 (no hair), 2 (downy hair), 3 (scant terminal hair), 4 (terminal hair filled entire triangle overlying pubic region), 5 (terminal hair extended beyond inguinal crease onto thigh); b) Breast exam: 1 (no breast development), 2 (breasts buds), 3 (breast tissue palpable outside areola; no areolar development), 4 (secondary mounds, separation of contours), 5 (full breast); c) Genitalia: 1 (no genital growth), 2 (enlargement of scrotum and testes), 3 (penis grow in size, testes enlarge), 4 (penis grow in length/ breadth, scrotum darkens, testes enlarge), 5 (adult shape and size). Number of participants are reported per shift in Tanner stage from Baseline to Month 84. Only rows with non-zero values were reported in this outcome measure.
Secondary Outcome Measures
  1. Change From Baseline in Physician Global Evaluation of Disease Activity Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in Systemic Juvenile Idiopathic Arthritis (sJIA) 1 Analysis Set
    Physician global evaluation of disease activity assessed overall arthritis appearance at specified time points. The evaluation was based on the participant's disease signs, functional capacity and physical examination. The investigator rated the overall level of disease activity by entering a number from 0 (no disease activity) to 10 (maximum disease activity) on a visual analogue scale (VAS). Higher scores signified more disease activity.
  2. Change From Baseline in Physician Global Evaluation of Disease Activity Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    Physician global evaluation of disease activity assessed overall arthritis appearance at specified time points. The evaluation was based on the participant's disease signs, functional capacity and physical examination. The investigator rated the overall level of disease activity by entering a number from 0 (no disease activity) to 10 (maximum disease activity) on a VAS. Higher scores signified more disease activity.
  3. Change From Baseline in Physician Global Evaluation of Disease Activity Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    Physician global evaluation of disease activity assessed overall arthritis appearance at specified time points. The evaluation was based on the participant's disease signs, functional capacity and physical examination. The investigator rated the overall level of disease activity by entering a number from 0 (no disease activity) to 10 (maximum disease activity) on a VAS. Higher scores signified more disease activity. In this outcome measure pJIA stands for polyarticular course juvenile idiopathic arthritis.
  4. Change From Baseline in Physician Global Evaluation of Disease Activity Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in Enthesitis Related Arthritis (ERA) Analysis Set
    Physician global evaluation of disease activity assessed overall arthritis appearance at specified time points. The evaluation was based on the participant's disease signs, functional capacity and physical examination. The investigator rated the overall level of disease activity by entering a number from 0 (no disease activity) to 10 (maximum disease activity) on a VAS. Higher scores signified more disease activity.
  5. Change From Baseline in Physician Global Evaluation of Disease Activity Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in Psoriatic Arthritis (PsA) Analysis Set
    Physician global evaluation of disease activity assessed overall arthritis appearance at specified time points. The evaluation was based on the participant's disease signs, functional capacity and physical examination. The investigator rated the overall level of disease activity by entering a number from 0 (no disease activity) to 10 (maximum disease activity) on a VAS. Higher scores signified more disease activity.
  6. Change From Baseline in Number of Joints With Active Arthritis at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    Active arthritis was defined as a joint with swelling or, in the absence of swelling, limitation of motion accompanied by either pain on motion, or tenderness not due to deformity.
  7. Change From Baseline in Number of Joints With Active Arthritis at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    Active arthritis was defined as a joint with swelling or, in the absence of swelling, limitation of motion accompanied by either pain on motion, or tenderness not due to deformity.
  8. Change From Baseline in Number of Joints With Active Arthritis at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    Active arthritis was defined as a joint with swelling or, in the absence of swelling, limitation of motion accompanied by either pain on motion, or tenderness not due to deformity.
  9. Change From Baseline in Number of Joints With Active Arthritis at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    Active arthritis was defined as a joint with swelling or, in the absence of swelling, limitation of motion accompanied by either pain on motion, or tenderness not due to deformity.
  10. Change From Baseline in Number of Joints With Active Arthritis at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    Active arthritis was defined as a joint with swelling or, in the absence of swelling, limitation of motion accompanied by either pain on motion, or tenderness not due to deformity.
  11. Change From Baseline in Number of Joints With Limitation of Motion at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
  12. Change From Baseline in Number of Joints With Limitation of Motion at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
  13. Change From Baseline in Number of Joints With Limitation of Motion at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
  14. Change From Baseline in Number of Joints With Limitation of Motion at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
  15. Change From Baseline in Number of Joints With Limitation of Motion at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
  16. Change From Baseline in C-Reactive Protein (CRP) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    CRP was a laboratory measurement test for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. A decrease in the level of CRP indicates reduction in inflammation.
  17. Change From Baseline in CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    CRP was a laboratory measurement test for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. A decrease in the level of CRP indicates reduction in inflammation.
  18. Change From Baseline in CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    CRP was a laboratory measurement test for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. A decrease in the level of CRP indicates reduction in inflammation.
  19. Change From Baseline in CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    CRP was a laboratory measurement test for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. A decrease in the level of CRP indicates reduction in inflammation.
  20. Change From Baseline in CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    CRP was a laboratory measurement test for evaluation of an acute phase reactant of inflammation through the use of an ultrasensitive assay. A decrease in the level of CRP indicates reduction in inflammation.
  21. Change From Baseline in Erythrocyte Sedimentation Rate (ESR) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    ESR was a laboratory test that provides a measure of inflammation. A higher rate is consistent with inflammation.
  22. Change From Baseline in ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    ESR was a laboratory test that provides a measure of inflammation. A higher rate is consistent with inflammation.
  23. Change From Baseline in ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    ESR was a laboratory test that provides a measure of inflammation. A higher rate is consistent with inflammation.
  24. Change From Baseline in ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    ESR was a laboratory test that provides a measure of inflammation. A higher rate is consistent with inflammation.
  25. Change From Baseline in ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    ESR was a laboratory test that provides a measure of inflammation. A higher rate is consistent with inflammation.
  26. Change From Baseline in Childhood Health Assessment Questionnaire (CHAQ) - Parental Evaluation of Physical Function (Disability Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. Disability index assessed function in 8 areas: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and activities-distributed among a total of 30 items. Each question was rated from Grade 0 to 3, 0= without any difficulty, 1= with some difficulty, 2= with much difficulty, 3= unable to do. If aids or devices were used or assistance was required, the minimum score for that functional area was 2. Parent/legal guardians were required to answer all questions. The disability index was calculated as the mean of the 8 functional areas and scores were averaged to calculate CHAQ disability index, which ranged from 0= no/minimal physical dysfunction to 3= very severe physical dysfunction; higher score indicated more disability.
  27. Change From Baseline in CHAQ - Parental Evaluation of Physical Function (Disability Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. Disability index assessed function in 8 areas: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and activities-distributed among a total of 30 items. Each question was rated from Grade 0 to 3, 0= without any difficulty, 1= with some difficulty, 2= with much difficulty, 3= unable to do. If aids or devices were used or assistance was required, the minimum score for that functional area was 2. Parent/legal guardians were required to answer all questions. The disability index was calculated as the mean of the 8 functional areas and scores were averaged to calculate CHAQ disability index, which ranged from 0= no/minimal physical dysfunction to 3= very severe physical dysfunction; higher score indicated more disability.
  28. Change From Baseline in CHAQ - Parental Evaluation of Physical Function (Disability Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. Disability index assessed function in 8 areas: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and activities-distributed among a total of 30 items. Each question was rated from Grade 0 to 3, 0= without any difficulty, 1= with some difficulty, 2= with much difficulty, 3= unable to do. If aids or devices were used or assistance was required, the minimum score for that functional area was 2. Parent/legal guardians were required to answer all questions. The disability index was calculated as the mean of the 8 functional areas and scores were averaged to calculate CHAQ disability index, which ranged from 0= no/minimal physical dysfunction to 3= very severe physical dysfunction; higher score indicated more disability.
  29. Change From Baseline in CHAQ - Parental Evaluation of Physical Function (Disability Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. Disability index assessed function in 8 areas: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and activities-distributed among a total of 30 items. Each question was rated from Grade 0 to 3, 0= without any difficulty, 1= with some difficulty, 2= with much difficulty, 3= unable to do. If aids or devices were used or assistance was required, the minimum score for that functional area was 2. Parent/legal guardians were required to answer all questions. The disability index was calculated as the mean of the 8 functional areas and scores were averaged to calculate CHAQ disability index, which ranged from 0= no/minimal physical dysfunction to 3= very severe physical dysfunction; higher score indicated more disability.
  30. Change From Baseline in CHAQ - Parental Evaluation of Physical Function (Disability Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. Disability index assessed function in 8 areas: dressing and grooming, arising, eating, walking, hygiene, reach, grip, and activities-distributed among a total of 30 items. Each question was rated from Grade 0 to 3, 0= without any difficulty, 1= with some difficulty, 2= with much difficulty, 3= unable to do. If aids or devices were used or assistance was required, the minimum score for that functional area was 2. Parent/legal guardians were required to answer all questions. The disability index was calculated as the mean of the 8 functional areas and scores were averaged to calculate CHAQ disability index, which ranged from 0= no/minimal physical dysfunction to 3= very severe physical dysfunction; higher score indicated more disability.
  31. Change From Baseline in CHAQ - Parental Evaluation of Child's Arthritis Pain (Discomfort Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For the assessment of discomfort index, the parent/legal guardian or adult caregiver who interacted daily with the participant were required to rate the overall arthritis pain of participant from 0 (no pain) to 10 (very severe pain), on a VAS, where higher scores indicated more severe pain.
  32. Change From Baseline in CHAQ - Parental Evaluation of Child's Arthritis Pain (Discomfort Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For the assessment of discomfort index, the parent/legal guardian or adult caregiver who interacted daily with the participant were required to rate the overall arthritis pain of participant from 0 (no pain) to 10 (very severe pain), on a VAS, where higher scores indicated more severe pain.
  33. Change From Baseline in CHAQ - Parental Evaluation of Child's Arthritis Pain (Discomfort Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For the assessment of discomfort index, the parent/legal guardian or adult caregiver who interacted daily with the participant were required to rate the overall arthritis pain of participant from 0 (no pain) to 10 (very severe pain), on a VAS, where higher scores indicated more severe pain.
  34. Change From Baseline in CHAQ - Parental Evaluation of Child's Arthritis Pain (Discomfort Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For the assessment of discomfort index, the parent/legal guardian or adult caregiver who interacted daily with the participant were required to rate the overall arthritis pain of participant from 0 (no pain) to 10 (very severe pain), on a VAS, where higher scores indicated more severe pain.
  35. Change From Baseline in CHAQ - Parental Evaluation of Child's Arthritis Pain (Discomfort Index) at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For the assessment of discomfort index, the parent/legal guardian or adult caregiver who interacted daily with the participant were required to rate the overall arthritis pain of participant from 0 (no pain) to 10 (very severe pain), on a VAS, where higher scores indicated more severe pain.
  36. Change From Baseline in CHAQ - Parental Evaluation of Overall Well-being at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For assessment of parent global assessment of overall well-being, the parent/legal guardian/participant were required to rate the overall well-being from 0 (very well) to 10 (very poor) on a VAS, where higher score indicated poor well-being.
  37. Change From Baseline in CHAQ - Parental Evaluation of Overall Well-being at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For assessment of parent global assessment of overall well-being, the parent/legal guardian/participant were required to rate the overall well-being from 0 (very well) to 10 (very poor) on a VAS, where higher score indicated poor well-being.
  38. Change From Baseline in CHAQ - Parental Evaluation of Overall Well-being at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For assessment of parent global assessment of overall well-being, the parent/legal guardian/participant were required to rate the overall well-being from 0 (very well) to 10 (very poor) on a VAS, where higher score indicated poor well-being.
  39. Change From Baseline in CHAQ - Parental Evaluation of Overall Well-being at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For assessment of parent global assessment of overall well-being, the parent/legal guardian/participant were required to rate the overall well-being from 0 (very well) to 10 (very poor) on a VAS, where higher score indicated poor well-being.
  40. Change From Baseline in CHAQ - Parental Evaluation of Overall Well-being at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    CHAQ comprised of: disability index and discomfort index, and parent global assessment of overall well-being. For assessment of parent global assessment of overall well-being, the parent/legal guardian/participant were required to rate the overall well-being from 0 (very well) to 10 (very poor) on a VAS, where higher score indicated poor well-being.
  41. Percentage of Participants Achieving a JIA American College of Rheumatology 30 (ACR 30) Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JIA ACR 30 response was defined as follows: \>=30% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  42. Percentage of Participants Achieving a JIA ACR 30 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JIA ACR 30 response was defined as follows: \>=30% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  43. Percentage of Participants Achieving a JIA ACR 30 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JIA ACR 30 response was defined as follows: \>=30% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  44. Percentage of Participants Achieving a JIA ACR 30 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JIA ACR 30 response was defined as follows: \>=30% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  45. Percentage of Participants Achieving a JIA ACR 30 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JIA ACR 30 response was defined as follows: \>=30% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  46. Percentage of Participants Achieving a JIA ACR 50 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JIA ACR 50 response was defined as follows: \>=50% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  47. Percentage of Participants Achieving a JIA ACR 50 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JIA ACR 50 response was defined as follows: \>=50% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  48. Percentage of Participants Achieving a JIA ACR 50 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JIA ACR 50 response was defined as follows: \>=50% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  49. Percentage of Participants Achieving a JIA ACR 50 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JIA ACR 50 response was defined as follows: \>=50% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  50. Percentage of Participants Achieving a JIA ACR 50 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JIA ACR 50 response was defined as follows: \>=50% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  51. Percentage of Participants Achieving a JIA ACR 70 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JIA ACR 70 response was defined as follows: \>=70% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  52. Percentage of Participants Achieving a JIA ACR 70 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JIA ACR 70 response was defined as follows: \>=70% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  53. Percentage of Participants Achieving a JIA ACR 70 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JIA ACR 70 response was defined as follows: \>=70% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  54. Percentage of Participants Achieving a JIA ACR 70 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JIA ACR 70 response was defined as follows: \>=70% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  55. Percentage of Participants Achieving a JIA ACR 70 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JIA ACR 70 response was defined as follows: \>=70% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  56. Percentage of Participants Achieving a JIA ACR 90 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JIA ACR 90 response was defined as follows: \>=90% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  57. Percentage of Participants Achieving a JIA ACR 90 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JIA ACR 90 response was defined as follows: \>=90% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  58. Percentage of Participants Achieving a JIA ACR 90 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JIA ACR 90 response was defined as follows: \>=90% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  59. Percentage of Participants Achieving a JIA ACR 90 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JIA ACR 90 response was defined as follows: \>=90% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  60. Percentage of Participants Achieving a JIA ACR 90 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JIA ACR 90 response was defined as follows: \>=90% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  61. Percentage of Participants Achieving a JIA ACR 100 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JIA ACR 100 response was defined as follows: \>=100% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  62. Percentage of Participants Achieving a JIA ACR 100 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JIA ACR 100 response was defined as follows: \>=100% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR. Assessment of fever was also included for participants with sJIA.
  63. Percentage of Participants Achieving a JIA ACR 100 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JIA ACR 100 response was defined as follows: \>=100% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  64. Percentage of Participants Achieving a JIA ACR 100 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JIA ACR 100 response was defined as follows: \>=100% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  65. Percentage of Participants Achieving a JIA ACR 100 Response at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JIA ACR 100 response was defined as follows: \>=100% improvement in 3 out of 6 JIA core set variables with no more than 1 out of 6 JIA core set variables worsened by \>=30%. JIA core set variables: 1) Physician global evaluation of disease activity (0 \[no disease activity\] to 10 \[maximum disease activity\]), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]), 5) Functional ability using disability index from CHAQ (0 \[very well\] to 10 \[very poor\]), 6) ESR.
  66. Percentage of Participants Experiencing Disease Flare After Month 3 at Months 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    Disease flare: worsening of \>=30% in 3 or more of 6 variables of JIA core set, with no more than 1 variable improved by \>=30%. Variables: 1) Physician global evaluation of disease activity (0= no disease activity - 10= maximum disease activity), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0= very well - 10= very poor), 5) Functional ability using disability index from CHAQ (0= very well - 10= very poor), 6) ESR. Fare definition: for number of active joints or joints with limited range of motion: at least 2 joints must have worsened; for physician's or parent/legal guardian global rating scores: at least 2 units worsening on 10-unit scale; for ESR: 2nd value for ESR in calculation \>upper limit of normal. Participants with sJIA: might include recurrence of fever due to sJIA \>38 degree Celsius(C) oral or \>38.6 degree C rectal on \>=2 consecutive days.
  67. Percentage of Participants Experiencing Disease Flare After Month 3 at Months 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    Disease flare: worsening of \>=30% in 3 or more of 6 variables of JIA core set, with no more than 1 variable improved by \>=30%. Variables: 1) Physician global evaluation of disease activity (0= no disease activity - 10= maximum disease activity), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0= very well - 10= very poor), 5) Functional ability using disability index from CHAQ (0= very well - 10= very poor), 6) ESR. Fare definition: for number of active joints or joints with limited range of motion: at least 2 joints must have worsened; for physician's or parent/legal guardian global rating scores: at least 2 units worsening on 10-unit scale; for ESR: 2nd value for ESR in calculation \>upper limit of normal. Participants with sJIA: might include recurrence of fever due to sJIA \>38 degree C oral or \>38.6 degree C rectal on \>=2 consecutive days.
  68. Percentage of Participants Experiencing Disease Flare After Month 3 at Months 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    Disease flare: worsening of \>=30% in 3 or more of 6 variables of JIA core set, with no more than 1 variable improved by \>=30%. Variables: 1) Physician global evaluation of disease activity (0= no disease activity - 10= maximum disease activity), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0= very well - 10= very poor), 5) Functional ability using disability index from CHAQ (0= very well - 10= very poor), 6) ESR. Fare definition: for number of active joints or joints with limited range of motion: at least 2 joints must have worsened; for physician's or parent/legal guardian global rating scores: at least 2 units worsening on 10-unit scale; for ESR: 2nd value for ESR in calculation \>upper limit of normal.
  69. Percentage of Participants Experiencing Disease Flare After Month 3 at Months 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    Disease flare: worsening of \>=30% in 3 or more of 6 variables of JIA core set, with no more than 1 variable improved by \>=30%. Variables: 1) Physician global evaluation of disease activity (0= no disease activity - 10= maximum disease activity), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0= very well - 10= very poor), 5) Functional ability using disability index from CHAQ (0= very well - 10= very poor), 6) ESR. Fare definition: for number of active joints or joints with limited range of motion: at least 2 joints must have worsened; for physician's or parent/legal guardian global rating scores: at least 2 units worsening on 10-unit scale; for ESR: 2nd value for ESR in calculation \>upper limit of normal.
  70. Percentage of Participants Experiencing Disease Flare After Month 3 at Months 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    Disease flare: worsening of \>=30% in 3 or more of 6 variables of JIA core set, with no more than 1 variable improved by \>=30%. Variables: 1) Physician global evaluation of disease activity (0= no disease activity - 10= maximum disease activity), 2) Number of joints with active arthritis, 3) Number of joints with limited range of motion, 4) Parent/legal guardian/participant evaluation of overall well-being using CHAQ (0= very well - 10= very poor), 5) Functional ability using disability index from CHAQ (0= very well - 10= very poor), 6) ESR. Fare definition: for number of active joints or joints with limited range of motion: at least 2 joints must have worsened; for physician's or parent/legal guardian global rating scores: at least 2 units worsening on 10-unit scale; for ESR: 2nd value for ESR in calculation \>upper limit of normal.
  71. Percentage of Participants Achieving JIA ACR Clinical Inactive Disease Status Based on CRP and ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JIA ACR clinical inactive disease status was defined as achieving all the following criteria: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis; ESR or CRP within the normal reference range for the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes.
  72. Percentage of Participants Achieving JIA ACR Clinical Inactive Disease Status Based on CRP and ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JIA ACR clinical inactive disease status was defined as achieving all the following criteria: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis; ESR or CRP within the normal reference range for the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes.
  73. Percentage of Participants Achieving JIA ACR Clinical Inactive Disease Status Based on CRP and ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JIA ACR clinical inactive disease status was defined as achieving all the following criteria: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis; ESR or CRP within the normal reference range for the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes.
  74. Percentage of Participants Achieving JIA ACR Clinical Inactive Disease Status Based on CRP and ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JIA ACR clinical inactive disease status was defined as achieving all the following criteria: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis; ESR or CRP within the normal reference range for the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes.
  75. Percentage of Participants Achieving JIA ACR Clinical Inactive Disease Status Based on CRP and ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JIA ACR clinical inactive disease status was defined as achieving all the following criteria: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis; ESR or CRP within the normal reference range for the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes.
  76. Percentage of Participants Achieving JIA ACR Clinical Remission Based on CRP and ESR at Months 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JIA ACR clinical remission was defined as inactive disease for 6 months (24 weeks) continuously while on medications. Clinical inactive disease status determination assessment was a derived measurement, which includes: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis (as defined by the standardization of uveitis nomenclature \[SUN\] working group); ESR or CRP levels within normal limits in the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes. At each time point, percentage of participants achieving clinical remission for the first time is reported.
  77. Percentage of Participants Achieving JIA ACR Clinical Remission Based on CRP and ESR at Months 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JIA ACR clinical remission was defined as inactive disease for 6 months (24 weeks) continuously while on medications. Clinical inactive disease status determination assessment was a derived measurement, which includes: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis (as defined by the SUN working group); ESR or CRP levels within normal limits in the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes. At each time point, percentage of participants achieving clinical remission for the first time is reported.
  78. Percentage of Participants Achieving JIA ACR Clinical Remission Based on CRP and ESR at Months 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JIA ACR clinical remission was defined as inactive disease for 6 months (24 weeks) continuously while on medications. Clinical inactive disease status determination assessment was a derived measurement, which includes: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis (as defined by the SUN working group); ESR or CRP levels within normal limits in the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes. At each time point, percentage of participants achieving clinical remission for the first time is reported.
  79. Percentage of Participants Achieving JIA ACR Clinical Remission Based on CRP and ESR at Months 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JIA ACR clinical remission was defined as inactive disease for 6 months (24 weeks) continuously while on medications. Clinical inactive disease status determination assessment was a derived measurement, which includes: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis (as defined by the SUN working group); ESR or CRP levels within normal limits in the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes. At each time point, percentage of participants achieving clinical remission for the first time is reported.
  80. Percentage of Participants Achieving JIA ACR Clinical Remission Based on CRP and ESR at Months 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JIA ACR clinical remission was defined as inactive disease for 6 months (24 weeks) continuously while on medications. Clinical inactive disease status determination assessment was a derived measurement, which includes: no joints with active arthritis; no fever, rash, serositis, splenomegaly, hepatomegaly, or generalized lymphadenopathy attributable to JIA; no active uveitis (as defined by the SUN working group); ESR or CRP levels within normal limits in the laboratory where tested or, if elevated, not attributable to JIA; physician global evaluation of disease activity score of 'best possible' on the scale used (0= no disease activity - 10= maximum disease activity); duration of morning stiffness of \<=15 minutes. At each time point, percentage of participants achieving clinical remission for the first time is reported.
  81. Change From Baseline in Juvenile Arthritis Disease Activity Score (JADAS)-27 CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  82. Change From Baseline in JADAS-27 CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  83. Change From Baseline in JADAS-27 CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  84. Change From Baseline in JADAS-27 CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  85. Change From Baseline in JADAS-27 CRP at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  86. Change From Baseline in JADAS-27 ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  87. Change From Baseline in JADAS-27 ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  88. Change From Baseline in JADAS-27 ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78: Participants in pJIA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  89. Change From Baseline in JADAS-27 ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  90. Change From Baseline in JADAS-27 ESR at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of the 4 components and it ranged from 0 to 57. A higher score indicated more disease activity.
  91. Percentage of Participants With JADAS Minimum Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease(27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). Overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of:\<=3.8. For participants with oligoarthritis (\<=4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=2.
  92. Percentage of Participants With JADAS Minimum Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease(27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). Overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of:\<=3.8. For participants with oligoarthritis (\<=4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=2.
  93. Percentage of Participants With JADAS Minimum Disease Activity Calculated From JADAS-27 CRP and ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78:Participants in pJIA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease(27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). Overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of:\<=3.8. For participants with oligoarthritis (\<=4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=2.
  94. Percentage of Participants With JADAS Minimum Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease(27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). Overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of:\<=3.8. For participants with oligoarthritis (\<=4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=2.
  95. Percentage of Participants With JADAS Minimum Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease(27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). Overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of:\<=3.8. For participants with oligoarthritis (\<=4 active joints) minimal disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=2.
  96. Percentage of Participants With JADAS Inactive Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1. For participants with oligoarthritis (\<=4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1.
  97. Percentage of Participants With JADAS Inactive Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1. For participants with oligoarthritis (\<=4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1.
  98. Percentage of Participants With JADAS Inactive Disease Activity Calculated From JADAS-27 CRP and ESR Score at Months 1,3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75 and 78:Participants in pJIA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1. For participants with oligoarthritis (\<=4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1.
  99. Percentage of Participants With JADAS Inactive Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in ERA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1. For participants with oligoarthritis (\<=4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1.
  100. Percentage of Participants With JADAS Inactive Disease Activity Calculated From JADAS-27 CRP and JADAS-27 ESR Score at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in PsA Analysis Set
    JADAS-27 was a validated composite disease activity measure for JIA. JADAS-27 CRP score and JADAS-27 ESR score was based on four components: physician global assessment of disease activity assessed on a VAS with score range from 0 (no disease activity) to 10 (maximum disease activity); parent/legal guardian/participant evaluation of overall well-being using CHAQ (0 \[very well\] to 10 \[very poor\]); number of joints with active disease (27 joint assessment ranging from 0 to 27) and CRP or ESR (value normalized to 0 to 10 scale). The overall JADAS-27 score was sum of 4 components and it ranged from 0 to 57. A higher score indicated more disease activity. For participants with polyarthritis (\>4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1. For participants with oligoarthritis (\<=4 active joints) inactive disease activity was defined as a JADAS-27 CRP score and JADAS-27 ESR score of \<=1.
  101. Percentage of Participants Who Achieved Tapering of Oral Corticosteroids, Methotrexate/Leflunomide, and Tofacitinib: Participants in sJIA1 Analysis Set
    Participants with inactive disease for at least 24 consecutive weeks began to taper off concomitant JIA therapies and tofacitinib. Tapering of therapies was completed in the following order: oral corticosteroids, methotrexate (MTX)/leflunomide, tofacitinib. A participant had multiple taperings with different results per medication and the best tapering result per medication per participant is summarized in this outcome measure. Participants achieving eligibility of tapering = participants who took the drug and started tapering; participants achieving partial tapering = participants who were able to undergo tapering from one dose level to a lower dose level; participants achieving complete tapering = participants discontinued drug completely.
  102. Percentage of Participants Who Achieved Tapering of Oral Corticosteroids, Methotrexate/Leflunomide, and Tofacitinib: Participants in sJIA2 Analysis Set
    Participants with inactive disease for at least 24 consecutive weeks began to taper off concomitant JIA therapies and tofacitinib. Tapering of therapies was completed in the following order: oral corticosteroids, MTX/leflunomide, tofacitinib. A participant had multiple taperings with different results per medication and the best tapering result per medication per participant is summarized in this outcome measure. Participants achieving eligibility of tapering = participants who took the drug and started tapering; participants achieving partial tapering = participants who were able to undergo tapering from one dose level to a lower dose level; participants achieving complete tapering = participants discontinued drug completely.
  103. Percentage of Participants Who Achieved Tapering of Oral Corticosteroids, Methotrexate/Leflunomide, and Tofacitinib: Participants in pJIA Analysis Set
    Participants with inactive disease for at least 24 consecutive weeks began to taper off concomitant JIA therapies and tofacitinib. Tapering of therapies was completed in the following order: oral corticosteroids, MTX/leflunomide, tofacitinib. A participant had multiple taperings with different results per medication and the best tapering result per medication per participant is summarized in this outcome measure. Participants achieving eligibility of tapering = participants who took the drug and started tapering; participants achieving partial tapering = participants who were able to undergo tapering from one dose level to a lower dose level; participants achieving complete tapering = participants discontinued drug completely.
  104. Percentage of Participants Who Achieved Tapering of Oral Corticosteroids, Methotrexate/Leflunomide, and Tofacitinib: Participants in ERA Analysis Set
    Participants with inactive disease for at least 24 consecutive weeks began to taper off concomitant JIA therapies and tofacitinib. Tapering of therapies was completed in the following order: oral corticosteroids, MTX/leflunomide, tofacitinib. A participant had multiple taperings with different results per medication and the best tapering result per medication per participant is summarized in this outcome measure. Participants achieving eligibility of tapering = participants who took the drug and started tapering; participants achieving partial tapering = participants who were able to undergo tapering from one dose level to a lower dose level; participants achieving complete tapering = participants discontinued drug completely.
  105. Percentage of Participants Who Achieved Tapering of Oral Corticosteroids, Methotrexate/Leflunomide, and Tofacitinib: Participants in PsA Analysis Set
    Participants with inactive disease for at least 24 consecutive weeks began to taper off concomitant JIA therapies and tofacitinib. Tapering of therapies was completed in the following order: oral corticosteroids, MTX/leflunomide, tofacitinib. A participant had multiple taperings with different results per medication and the best tapering result per medication per participant is summarized in this outcome measure. Participants achieving eligibility of tapering = participants who took the drug and started tapering; participants achieving partial tapering = participants who were able to undergo tapering from one dose level to a lower dose level; participants achieving complete tapering = participants discontinued drug completely.
  106. Percentage of Participants Who Achieved Absence of Fever 1 Week Prior to Assessment at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA1 Analysis Set
    Absence of fever was defined as absence of fever due to sJIA in the week preceding the assessment at each visit. Fever was defined as temperature \>38 C/ 100.4 F (oral) or \>101.4 F/38.6 C (rectal), due to sJIA, in the last 7 days before the visit.
  107. Percentage of Participants Who Achieved Absence of Fever 1 Week Prior to Assessment at Months 1, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33 and 36: Participants in sJIA2 Analysis Set
    Absence of fever was defined as absence of fever due to sJIA in the week preceding the assessment at each visit. Fever was defined as temperature \>38 C/ 100.4 F (oral) or \>101.4 F/38.6 C (rectal), due to sJIA, in the last 7 days before the visit.
  108. Change From Baseline in Tender Entheseal Assessment at Months 3, 6, 12, 18, 24, 30 and 36: Participants in ERA Analysis Set
    Tender entheseal assessment was performed by the investigator as 'Yes' or 'No'. 'Yes' indicated the presence of tenderness upon firm palpation over the specified enthesis and 'No' indicated the absence of tenderness upon firm palpation over the indicated enthesis. A total of 16 entheseal sites were assessed and the number of tender sites was counted. The score ranges from 0 to 16, where 0 represents the best possible outcome (no tenderness) and 16 represents the worst possible outcome (maximum tenderness).
  109. Change From Baseline in Modified Schober's Test at Months 3, 6, 12, 18, 24, 30 and 36: Participants in ERA Analysis Set
    Modified Schober's test was performed at the study visits only in participants with enthesitis-related arthritis. With the participant standing erect and with feet together, a line joining the posterior superior iliac spines (the dimples of Venus) was used as a landmark for the lumbosacral junction. A mark was made 5 centimeters (cm) below and 10 cm above the lumbosacral junction. With the participant in maximum forward flexion with the knees straight, the investigator measures the distance between the two marks in centimeters. The full measurement between the two lines was recorded to the nearest tenth of a centimeter (e.g., 15.2 cm) on the appropriate CRF.
  110. Change From Baseline in Overall Back Pain at Months 3, 6, 12, 18, 24, 30 and 36: Participants in ERA Analysis Set
    Severity of overall back pain (at any time) experienced was rated by parent/legal guardian/participant on a VAS from 0 (no pain) to 10 (most severe pain), where higher score indicated more severe pain.
  111. Change From Baseline in Nocturnal Back Pain at Months 3, 6, 12, 18, 24, 30 and 36: Participants in ERA Analysis Set
    Severity of nocturnal back pain (at night) experienced was rated by parent/legal guardian/participant on a VAS from 0 (no pain) to 10 (most severe pain), where higher score indicated more severe pain.
  112. Change From Baseline in Body Surface Area (BSA) at Months 3, 6, 12, 18, 24, 30 and 36: Participants in PsA Analysis Set
    BSA was measured as the percentage of BSA affected by psoriasis using the palm method; the participants palm was used for the calculation. One of the participant's palm to proximal interphalangeal (PIP) and thumb equals to 1% of BSA. Regions of the body included along with percentage of BSA: 1) head and neck = 10% (10 palms); 2) upper extremities = 20% (20 palms); 3) trunk (axillae and groin) = 30% (30 palms) and 4) lower extremities (buttocks) = 40% (40 palms).Total BSA was sum of all regions ranged from 0% to 100% (100 palms). The physician assessed the total BSA affected by psoriasis using the addition of the individual regions.
  113. Change From Baseline in Physician's Global Assessment (PGA) at Months 3, 6, 12, 18, 24, 30 and 36: Participants in PsA Analysis Set
    PGA was used to determine participant's overall psoriasis lesions at a given time point. Overall lesions were graded for induration, erythema, and scaling based upon scales. Induration scale ranged from: 0 (no evidence of plaque elevation) to 5 (severe plaque elevation or more); erythema scale ranged from: 0 (no evidence of erythema, hyper pigmentation may be present) to 5 (dusky to deep red coloration); scaling scale ranged from: 0 (no evidence of scaling) to 5 (severe; very thick tenacious scale predominates). Total PGA score was calculated based on sum of 3 scales divided by 3 to obtain final PGA, ranging from 0 (no evidence) to 5 (maximum severity); higher scores indicated more severity of psoriasis.

Eligibility Criteria

Ages Eligible for Study(Child, Adult)
Sexes Eligible for StudyAll
Accepts Healthy VolunteersNo
Inclusion Criteria
Pediatric subjects with JIA aged from 2 to less than 18 years who met entry criteria for the qualifying/index study and in the opinion of the investigator have sufficient evidence of JIA disease activity to warrant use of tofacitinib as a DMARD. Subjects turning 18 years of age during participation in the qualifying/index study or subsequently will be eligible for participation in this study.
The subject has discontinued disallowed concomitant medications for the required time prior to the first dose of study drug, as defined in Appendix 1, and is taking only those concomitant medications in doses and frequency allowed by the protocol.
Fertile male subjects and female subjects of childbearing potential who are, in the opinion of the investigator, sexually active and at risk for pregnancy with their partner(s) must be using a highly effective method of contraception as outlined in this protocol throughout the study and for at least 28 days after the last dose of study medication.
Subjects must have previously completed participation in a qualifying study of tofacitinib for the treatment of JIA. Subjects who have required earlier discontinuation of treatment in a qualifying study for reasons other than tofacitinib related serious adverse events may be eligible.
Exclusion Criteria
persistent oligoarthritis, and undifferentiated JIA.
Infections: 1. Chronic infections. 2. Any infection requiring hospitalization, parenteral antimicrobial therapy or judged to be opportunistic by the investigator within the 3 months prior to the first dose of study drug. 3. Any treated infections within 2 weeks of baseline visit. 4. A subject known to be infected with human immunodeficiency virus (HIV), hepatitis B or hepatitis C virus. 5. History of infected joint prosthesis with prosthesis still in situ.
History of recurrent (more than one episode) herpes zoster or disseminated (a single episode) herpes zoster or disseminated (a single episode) herpes simplex.

Contacts and Locations

Sponsors and CollaboratorsPfizer
Locations
Arkansas Children's Hospital | Little Rock Arkansas, United States, 72202Loma Linda University Children'S Hospital | Loma Linda California, United States, 92354Loma Linda University Clinical Trials Center | Loma Linda California, United States, 92354Loma Linda University Eye Institute | Loma Linda California, United States, 92354Loma Linda University General Pediatric Clinic - Meridian | Loma Linda California, United States, 92354Pediatric Speciality Team Centers of LLU Children's Hospital (Rheumatology) | Loma Linda California, United States, 92408Children's Hospital Los Angeles | Los Angeles California, United States, 90027Pediatric Speciality Team Centers of LLU Children's Hospital (Rheumatology) | San Bernardino California, United States, 92408Rady Children's Hospital Center for Pediatric Clinical Research | San Diego California, United States, 92123Rady Children's Hospital Rheumatology Clinic | San Diego California, United States, 92123Rady Children's Hospital San Diego- Education and Office Building | San Diego California, United States, 92123Rady Children's Hospital San Diego | San Diego California, United States, 92123Rady Children's Research Pharmacy | San Diego California, United States, 92123Connecticut Children's Medical Center | Hartford Connecticut, United States, 06106Children's National Medical Center | Washington D.C. District of Columbia, United States, 20010IDS Pharmacy | Washington D.C. District of Columbia, United States, 20010Nicklaus Children's Hospital | Miami Florida, United States, 33155Center for Advanced Pediatrics | Atlanta Georgia, United States, 30329AU Medical Center | Augusta Georgia, United States, 30912Augusta University | Augusta Georgia, United States, 30912Ann & Robert H. Lurie Children's Hospital of Chicago | Chicago Illinois, United States, 60611The University of Chicago Medical Center | Chicago Illinois, United States, 60637Riley Hospital for Children at IU Health | Indianapolis Indiana, United States, 46202Tufts Medical Center - Floating Hospital for Children | Boston Massachusetts, United States, 02111Explorer Clinic, University of Minnesota Children's Hospital | Minneapolis Minnesota, United States, 55454Hackensack University Medical Center | Hackensack New Jersey, United States, 07601Cohen Children's Medical Center of New York | Lake Success New York, United States, 11042Columbia University Medical Center-Herbert Irving Pavillion | New York New York, United States, 10032Montefiore Medical Center | The Bronx New York, United States, 10467Pediatric Research | Charlotte North Carolina, United States, 20207Levine Children's Specialty Center | Charlotte North Carolina, United States, 28203Atrium Health- Investigational Drug Services | Charlotte North Carolina, United States, 28207Cincinnati Children's Hospital Medical Center | Cincinnati Ohio, United States, 45229Randall Children's Hospital at Legacy Emanuel | Portland Oregon, United States, 97227The Children's Hospital of Philadelphia | Philadelphia Pennsylvania, United States, 19104Dell Children's Medical Group, Dell Children's Medical Center | Austin Texas, United States, 78723Texas Children's Hospital- Clinical Care Center | Houston Texas, United States, 77030Texas Children's Hospital- Clinical Research Center | Houston Texas, United States, 77030Texas Children's Hospital- Investigational Pharmacy | Houston Texas, United States, 77030Texas Children's Hospital- Main Hospital | Houston Texas, United States, 77030Texas Children's Hospital/Baylor College of Medicine- Feigin Center | Houston Texas, United States, 77030Intermountain - Primary Children's Hospital | Salt Lake City Utah, United States, 84113Seattle Children's Hospital | Seattle Washington, United States, 98105Instituto CAICI SRL | Rosario Santa Fe Province, Argentina, S2000PBJCentro Medico Privado de Reumatologia | San Miguel de Tucumán Tucumán Province, Argentina, T4000AXLHospital Britanico de Buenos Aires | CABA , Argentina, C1280AEBThe Children's Hospital at Westmead | Westmead New South Wales, Australia, 2145The Royal Children's Hospital | Parkville Victoria, Australia, 3052UZ Gent | Ghent , Belgium, 9000UZ Leuven - Gasthuisberg | Leuven , Belgium, 3000SER - Serviços Especializados em Reumatologia | Salvador Estado de Bahia, Brazil, 40150-150CMIP - Centro Mineiro de Pesquisa Ltda | Juiz de Fora Minas Gerais, Brazil, 36010-570Hospital Pequeno Príncipe Clinical Research Office | Curitiba Paraná, Brazil, 80250-060Faculdade de Medicina da UNESP | Botucatu São Paulo, Brazil, 18618-686Instituto de Puericultura e Pediatria Martagao Gesteira (IPPMG) | Rio de Janeiro , Brazil, 21941-912SPDM - Associacao Paulista para o Desenvolvimento da Medicina | São Paulo , Brazil, 04037-002Instituto da Crianca do Hospital das Clinicas da FMUSP | São Paulo , Brazil, 05409-011Alberta Children's Hospital | Calgary Alberta, Canada, T3B 6A8British Columbia Children's Hospital | Vancouver British Columbia, Canada, V6H 3V4McGill University Health Center, Glen Site | Montreal Quebec, Canada, H4A 3J1Children's Hospital of Soochow University | Suzhou Jiangsu, China, 215003The Children's Hospital Zhejiang University School of Medicine | Hangzhou Zhejiang, China, 310057Beijing Children's Hospital, Capital Medical University/Rheumatology Department | Beijing , China, 100045PRI - Pediatric Rheumatology Research Institute GmbH | Bad Bramstedt , Germany, 24576Hamburger Zentrum fur Kinder und Jugendrheumatologie | Hamburg , Germany, 22081Asklepios Klinik Sankt Augustin GmbH | Sankt Augustin , Germany, 53757St. Josef-Stift Sendenhorst | Sendenhorst , Germany, 48324Nirmal Hospital Pvt Ltd. | Surat Gujarat, India, 395002Institute of Child Health | Kolkata West Bengal, India, 700017Institute of Post Graduate Medical Education and Research & SSKM Hospital | Kolkata West Bengal, India, 700020Sir Ganga Ram Hospital | New Delhi , India, 110060Rambam Health Care Campus | Haifa , Israel, 31096 01Meir Medical Center - Pediatric Clinic | Kfar Saba , Israel, 4428164Chaim Sheba M.C Tel hashomer | Ramat Gan , Israel, 52621Clínica de Investigacion en Reumatologia y Obesidad, S.C. | Guadalajara Jalisco, Mexico, 44650Hospital Universitario "Dr. Jose Eleuterio Gonzalez" | Monterrey Nuevo León, Mexico, 64460Centro de Alta Especialidad de Reumatología e Investigación del Potosí, S.C. | San Luis de Potosí , Mexico, 78213Hospital Central "Dr. Ignacio Morones Prieto" | San Luis Potosí City , Mexico, 78290Unidad de Investigaciones Reumatologicas A.C. | San Luis Potosí City , Mexico, 78290Wojewodzki Szpital Dzieciecy im. J. Brudzinskiego | Bydgoszcz , Poland, 85-667Wojewodzki Specjalistyczny Szpital Dzieciecy im. Sw. Ludwika w Krakowie | Krakow , Poland, 31-503Klinika Kardiologii i Reumatologii Dzieciecej | Lodz , Poland, 91-738Narodowy Instytut Geriatrii, Reumatologii i Rehabilitacji im prof dr hab med Eleonory Reicher | Warsaw , Poland, 02-637FSBEI HE BSMU MoH RF | Ufa Bashkortostan Republic, Russia, 450008Clinic of FSBEI HE BSMU MoH RF | Ufa Bashkortostan Republic, Russia, 450083Federal State Budgetary Scientific Institution | Moscow , Russia, 115522FSAEI HE I.M. Sechenov First MSMU of Minzdrav of Russia (Sechenovskiy University) | Moscow , Russia, 119435FSAEI HE I.M. Sechenov First MSMU of Minzdrav of Russia (Sechenovskiy University), | Moscow , Russia, 119991FSAI "NMRCCH" of MOH Russia | Moscow , Russia, 119991FSBEI HE "St. Petersburg State Pediatric Medical University" of the Ministry of Healthcare | Saint Petersburg , Russia, 194100State Budgetary Healthcare Institution of Samara Region "Tolyatti City Clinical Hospital #5" | Tolyatti , Russia, 445039Narodny ustav reumatickych chorob | Piešťany , Slovakia, 921 12Panorama Medical Centre | Panorama CAPE TOWN, South Africa, 7500Durban International Clinical Research Site, Enhancing Care Foundation | Durban , South Africa, 4301Hospital Universitario Ramon y Cajal | Madrid , Spain, 28034Hospital Universitario La Paz | Madrid , Spain, 28046Hospital Universitario y Politecnico La Fe | Valencia , Spain, 46026Hacettepe University Medical Faculty | Ankara , Turkey (Türkiye), 06100Umraniye Training and Research Hospital | Istanbul , Turkey (Türkiye), 34764Istanbul Goztepe Prof. Dr. Suleyman Yalcin Sehir Hastanesi Cocuk Romatoloji Bolumu | Kadikoy / Istanbul , Turkey (Türkiye), 34722Communal Institution "Dnipropetrovsk Specialized Clinical Medical Center of Mother and Child n.a. | Dnipro , Ukraine, 49006Ivano-Frankivsk Regional Children's Clinical Hospital | Ivano-Frankivsk , Ukraine, 76014Communal Non-profit Enterprise | Vinnytsia , Ukraine, 21000Birmingham Woman's and Children's NHS Foundation Trust | Birmingham WEST Midlands, United Kingdom, B4 6NH
Investigators
Study Director: Pfizer CT.gov Call Center, Pfizer
Study Documents (Full Text)
Documents provided by PfizerStudy Protocol  May 5, 2022Documents provided by PfizerStatistical Analysis Plan  January 25, 2024