50 and older, any sex, with Giant Cell Arteritis. Patients with the condition only — healthy volunteers not accepted.
Results — posted to ClinicalTrials.gov
Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.
Part A: Number of Participants in Sustained Remission at Week 52Primary· Week 52
Sustained remission was defined as having achieved all of the following: 1) remission at Week 12, 2) absence of disease flare Week 12 through Week 52, 3) completion of the assigned prednisone taper, and 4) no requirement for rescue therapy through Week 52. Remission was defined as absence of clinical signs and symptoms of GCA and normalization of erythrocyte sedimentation rate (ESR) \[\<30 millimeters per hour\] and C-reactive Protein (CRP) \[\<1 milligram/deciliter\]) and flare was defined as recurrence of symptoms attributable to active GCA, with or without elevations in ESR and/or CRP. Data
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
3
PartA:SIR 100 mg SC q2w+3 Month Prednisone
2
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Part B: Number of Participants Who Remained in Sustained Remission Without Requirement for Rescue Therapy or Treatment Change at Week 24Secondary· Week 24
Participants who remained in sustained remission without requirement for rescue therapy or treatment change at each scheduled visit of Part B were defined as participants having achieved all of the following criteria: 1. Participants in sustained remission at the Week 52 visit of Part A, 2. Absence of disease flare, 3. No requirement for rescue therapy at any time through Week 24 of Part B, 4. No requirement for treatment change at any time through Week 24 of Part B. Remission was defined as absence of clinical signs and symptoms of GCA and normalization of ESR \[\<30 millimeters per hour\] an
Group
Value
95% CI
PartB:SIR 100 mg SC q2w+6 Month Prednisone
NA
Part B:SIR 100 mg SC q2w+3 Month Prednisone
NA
PartB:SIR 50 mg SC q4w+6 Month Prednisone
NA
Part A: Cumulative Prednisone Dose Over TimeSecondary· Weeks 2, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48 and 52
Cumulative prednisone is the dose from the taper (both open-label and blinded) as well as from the corticosteroid rescue therapies. Cumulative dose at the specified Week was derived as the sum of all the doses from Baseline to the specified Week at each visit was calculated based on the number of participants who attended that visit. For the main analysis of cumulative prednisone dose over time. Data for Prednisone Dose- Study Drug and Prednisone Equivalent Concomitant Therapy for part A is presented. ITT population and the number of participants included at specific time points were based on
Week 2, n= 40,39,26,27,26
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
439.575
± 237.8990
PartA:SIR 100 mg SC q2w+3 Month Prednisone
464.923
± 299.6445
PartA:SIR 50 mg SC q4w+6 Month Prednisone
424.577
± 270.2183
PartA:Placebo SC q2w + 6 Month Prednisone
432.815
± 315.6851
PartA:Placebo SC q2w + 12 Month Prednisone
430.846
± 241.3540
Week 4,n=40,39,26,25,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
701.100
± 370.9798
PartA:SIR 100 mg SC q2w+3 Month Prednisone
741.115
± 436.4205
PartA:SIR 50 mg SC q4w+6 Month Prednisone
701.192
± 439.7251
PartA:Placebo SC q2w + 6 Month Prednisone
705.480
± 601.9706
PartA:Placebo SC q2w + 12 Month Prednisone
751.407
± 431.3442
Week 8,n=37, 37,26,23,26
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1086.676
± 600.7400
PartA:SIR 100 mg SC q2w+3 Month Prednisone
987.730
± 559.4458
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1014.731
± 592.3515
PartA:Placebo SC q2w + 6 Month Prednisone
1161.391
± 1202.8504
PartA:Placebo SC q2w + 12 Month Prednisone
1129.077
± 546.8037
Week 12,n=34,32,24,22,24
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1344.441
± 779.6775
PartA:SIR 100 mg SC q2w+3 Month Prednisone
1063.773
± 619.4002
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1208.167
± 650.6975
PartA:Placebo SC q2w + 6 Month Prednisone
1379.409
± 1255.4397
PartA:Placebo SC q2w + 12 Month Prednisone
1462.917
± 630.1717
Week 16,n=32,30,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1545.602
± 964.3264
PartA:SIR 100 mg SC q2w+3 Month Prednisone
1182.288
± 718.6186
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1348.750
± 689.2484
PartA:Placebo SC q2w + 6 Month Prednisone
1672.795
± 1261.7121
PartA:Placebo SC q2w + 12 Month Prednisone
1729.977
± 701.3734
Week 20,n=29,27,21,24,19
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1690.302
± 1173.6005
PartA:SIR 100 mg SC q2w+3 Month Prednisone
1339.546
± 888.5007
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1475.786
± 734.7667
PartA:Placebo SC q2w + 6 Month Prednisone
1646.177
± 701.5240
PartA:Placebo SC q2w + 12 Month Prednisone
2041.632
± 771.3504
Week 24,n=30,25,19,18,17
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1878.458
± 1333.1175
PartA:SIR 100 mg SC q2w+3 Month Prednisone
1495.015
± 1055.9615
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1626.342
± 813.8284
PartA:Placebo SC q2w + 6 Month Prednisone
1917.444
± 861.6887
PartA:Placebo SC q2w + 12 Month Prednisone
2299.471
± 840.8758
Week 28,n=24,23,15,17,15
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
2000.813
± 1594.5982
PartA:SIR 100 mg SC q2w+3 Month Prednisone
1575.549
± 1170.7294
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1797.533
± 933.3753
PartA:Placebo SC q2w + 6 Month Prednisone
2141.294
± 1082.2754
PartA:Placebo SC q2w + 12 Month Prednisone
2387.800
± 741.1663
Part B: Number of Participants in Sustained Remission Over TimeSecondary· Weeks 4, 8 and 12
Sustained remission was defined as having achieved all of the following: 1) remission at Week 12 (absence of signs and symptoms of GCA and normalization of ESR and CRP), 2) absence of disease flare Week 12 through Week 52 with or without elevations in ESR and/or CRP, 3) completion of the assigned prednisone taper, and 4) no requirement for rescue therapy through Week 52. Remission was defined as absence of clinical signs and symptoms of GCA and normalization of ESR \[\<30millimeters per hour\] and CRP \[\<1milligram/deciliter\]) and Flare was defined as recurrence of symptoms attributable to a
Week 4,n=1,1,1,0,0
Group
Value
95% CI
PartB:SIR 100 mg SC q2w+6 Month Prednisone
1
PartB:SIR 100 mg SC q2w+3 Month Prednisone
1
PartB:SIR 50 mg SC q4w+6 Month Prednisone
1
Week 8,n=1,0,1,0,0
Group
Value
95% CI
PartB:SIR 100 mg SC q2w+6 Month Prednisone
1
PartB:SIR 50 mg SC q4w+6 Month Prednisone
1
Week 12,n=1,0,0,0,0
Group
Value
95% CI
PartB:SIR 100 mg SC q2w+6 Month Prednisone
1
Part A: Time to First Disease Flare After Clinical RemissionSecondary· Week 52
Clinical remission was defined as absence of clinical signs and symptoms of GCA, which was determined by a lack of flare for the participant. If a participant had a flare, they had one or more signs and symptoms, and therefore are not considered as being in clinical remission. Time to first disease flare (days) was calculated as (Date of First Flare - Date of Clinical Remission + 1 day). Data for Time to first disease flare after clinical remission for part A is presented.
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
NA
NA – NA
PartA:SIR 100 mg SC q2w+3 Month Prednisone
NA
NA – NA
PartA:SIR 50 mg SC q4w+6 Month Prednisone
NA
176.0 – NA
PartA:Placebo SC q2w + 6 Month Prednisone
NA
99.0 – NA
PartA:Placebo SC q2w + 12 Month Prednisone
NA
183.0 – NA
Part B: Time to First Disease Flare for Participants in Sustained RemissionSecondary· Week 52
Clinical remission was defined as absence of clinical signs and symptoms of GCA. If a participant had a flare, they had one or more signs and symptoms, and therefore are not considered as being in clinical remission. Time to event (days) is defined as the duration in days from the date of the Week 52 visit of Part A to the start date of Event (Date of First Flare - Date of Week 52 visit of Part A + 1). Data for Time to first disease flare after clinical remission for part B is presented.
Group
Value
95% CI
PartB:SIR 100 mg SC q2w+6 Month Prednisone
NA
NA – NA
PartB:SIR 100 mg SC q2w+3 Month Prednisone
NA
NA – NA
PartB:SIR 50 mg SC q4w+6 Month Prednisone
NA
NA – NA
Part A: Number of Disease Flares Over TimeSecondary· Weeks 2, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48 and 52
This summarizes disease flares over time with no adjustment for exposure to study drugs, calculated by taking the last visit before a participant withdrew and then counting the number of participants with at least 1 flare up to that point and summing up the total number of flares experienced by each of these participants; participants who did not reach Week 2 were not included in this analysis. Data for number of disease flares per participant over time for part A were presented.
Week 2, n=38, 39,26,25,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1
PartA:SIR 100 mg SC q2w+3 Month Prednisone
2
PartA:SIR 50 mg SC q4w+6 Month Prednisone
2
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
2
Week 4, n=37,37,25,23,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
3
PartA:SIR 100 mg SC q2w+3 Month Prednisone
4
PartA:SIR 50 mg SC q4w+6 Month Prednisone
3
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
2
Week 8, n=34,32,24,23,23
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
2
PartA:SIR 100 mg SC q2w+3 Month Prednisone
6
PartA:SIR 50 mg SC q4w+6 Month Prednisone
3
PartA:Placebo SC q2w + 6 Month Prednisone
1
PartA:Placebo SC q2w + 12 Month Prednisone
5
Week 12, n=32,29,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
4
PartA:SIR 100 mg SC q2w+3 Month Prednisone
9
PartA:SIR 50 mg SC q4w+6 Month Prednisone
4
PartA:Placebo SC q2w + 6 Month Prednisone
4
PartA:Placebo SC q2w + 12 Month Prednisone
4
Week 16, n=28,26,22,19,19
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
4
PartA:SIR 100 mg SC q2w+3 Month Prednisone
9
PartA:SIR 50 mg SC q4w+6 Month Prednisone
5
PartA:Placebo SC q2w + 6 Month Prednisone
9
PartA:Placebo SC q2w + 12 Month Prednisone
4
Week 20, n=26,23,19,18,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
4
PartA:SIR 100 mg SC q2w+3 Month Prednisone
9
PartA:SIR 50 mg SC q4w+6 Month Prednisone
6
PartA:Placebo SC q2w + 6 Month Prednisone
10
PartA:Placebo SC q2w + 12 Month Prednisone
3
Week 24, n=23,21,16,17,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
6
PartA:SIR 100 mg SC q2w+3 Month Prednisone
9
PartA:SIR 50 mg SC q4w+6 Month Prednisone
8
PartA:Placebo SC q2w + 6 Month Prednisone
11
PartA:Placebo SC q2w + 12 Month Prednisone
5
Week 28, n=19,18,12,14,14
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
5
PartA:SIR 100 mg SC q2w+3 Month Prednisone
8
PartA:SIR 50 mg SC q4w+6 Month Prednisone
8
PartA:Placebo SC q2w + 6 Month Prednisone
11
PartA:Placebo SC q2w + 12 Month Prednisone
5
Part A: Number of Participants With at Least One Hospitalization for Disease FlareSecondary· Weeks 2, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48 and 52
Number of participants with at least one hospitalization for disease flare at a given visit is the number of participants with at least one hospitalization for disease flare between first SC IP intake and the day of the given visit. Data for participants requiring at least one hospitalization for disease flare for part A is presented.
Week 2, n=38, 39,26,25,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 4, n=37,37,25,23,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 8, n=34,32,24,23,23
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 12, n=32,29,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 16, n=28,26,22,19,19
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 20, n=26,23,19,18,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 24, n=23,21,16,17,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
1
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 28, n=19,18,12,14,14
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Part A: Number of Hospitalizations for Disease Flare Over TimeSecondary· Weeks 2, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48 and 52
Number of hospitalizations for disease flare at given visit is the number of hospitalizations for disease flare between first SC IP intake and the day of the of the given visit.. Data for number of hospitalizations for disease flare over time for part A was presented.
Week 2, n=38, 39,26,25,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 4, n=37,37,25,23,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 8, n=34,32,24,23,23
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 12, n=32,29,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
2
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 16, n=28,26,22,19,19
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
2
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 20, n=26,23,19,18,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
2
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 24, n=23,21,16,17,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
2
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Week 28, n=19,18,12,14,14
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0
PartA:SIR 50 mg SC q4w+6 Month Prednisone
1
PartA:Placebo SC q2w + 6 Month Prednisone
0
PartA:Placebo SC q2w + 12 Month Prednisone
0
Part A: Mean 36-item Short Form Health Survey Version 2 (SF-36 v2) Acute Score Over TimeSecondary· Baseline (Week 0), Weeks 12, 24, 36, 52
SF-36v2 acute health survey questionnaire consists of the following 8 multi-item scales: 1. Limitations in physical functioning due to health problems, 2. Limitations in usual role activities due to physical health problems, 3. Bodily pain, 4. General mental health (psychological distress and well-being), 5. Limitations in usual role activities due to personal or emotional problems, 6. Limitations in social functioning due to physical or mental health problems. 7. Vitality (energy and fatigue) and 8. General health perception. These 8 scales were scored from 0 to 100, 0 (worst score) to 100 (b
PCS,Baseline, n=42,38,25,23,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
49.258
± 11.7655
PartA:SIR 100 mg SC q2w+3 Month Prednisone
43.271
± 12.3169
PartA:SIR 50 mg SC q4w+6 Month Prednisone
42.919
± 11.7298
PartA:Placebo SC q2w + 6 Month Prednisone
49.240
± 9.2759
PartA:Placebo SC q2w + 12 Month Prednisone
45.470
± 12.8498
PCS,Week 12, n=31,28,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
51.519
± 10.5352
PartA:SIR 100 mg SC q2w+3 Month Prednisone
43.128
± 11.4559
PartA:SIR 50 mg SC q4w+6 Month Prednisone
43.655
± 11.0324
PartA:Placebo SC q2w + 6 Month Prednisone
48.552
± 10.4184
PartA:Placebo SC q2w + 12 Month Prednisone
47.007
± 12.8749
PCS,Week 24, n=23,20,15,17,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
50.023
± 11.4731
PartA:SIR 100 mg SC q2w+3 Month Prednisone
45.677
± 12.1192
PartA:SIR 50 mg SC q4w+6 Month Prednisone
45.097
± 15.0552
PartA:Placebo SC q2w + 6 Month Prednisone
46.911
± 9.2901
PartA:Placebo SC q2w + 12 Month Prednisone
44.280
± 11.4740
PCS,Week 36, n=15,13,10,12,13
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
51.989
± 10.7521
PartA:SIR 100 mg SC q2w+3 Month Prednisone
47.069
± 12.7103
PartA:SIR 50 mg SC q4w+6 Month Prednisone
46.005
± 12.2496
PartA:Placebo SC q2w + 6 Month Prednisone
48.336
± 10.0154
PartA:Placebo SC q2w + 12 Month Prednisone
44.946
± 10.1921
PCS,Week 52, n=9,5,5,5,4
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
50.269
± 10.8743
PartA:SIR 100 mg SC q2w+3 Month Prednisone
53.690
± 7.9049
PartA:SIR 50 mg SC q4w+6 Month Prednisone
53.608
± 7.7721
PartA:Placebo SC q2w + 6 Month Prednisone
52.026
± 6.4892
PartA:Placebo SC q2w + 12 Month Prednisone
53.143
± 12.8351
MCS,Week 12, n=31,28,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
43.955
± 4.6164
PartA:SIR 100 mg SC q2w+3 Month Prednisone
45.264
± 5.7982
PartA:SIR 50 mg SC q4w+6 Month Prednisone
46.393
± 6.1792
PartA:Placebo SC q2w + 6 Month Prednisone
43.746
± 5.3179
PartA:Placebo SC q2w + 12 Month Prednisone
43.182
± 4.6707
MCS,Week 24, n=23,20,15,17,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
44.538
± 5.6952
PartA:SIR 100 mg SC q2w+3 Month Prednisone
45.954
± 5.4884
PartA:SIR 50 mg SC q4w+6 Month Prednisone
44.877
± 6.5210
PartA:Placebo SC q2w + 6 Month Prednisone
45.372
± 6.4561
PartA:Placebo SC q2w + 12 Month Prednisone
45.526
± 5.8924
MCS,Week 36, n=15,13,10,12,13
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
45.258
± 5.2429
PartA:SIR 100 mg SC q2w+3 Month Prednisone
45.540
± 4.8330
PartA:SIR 50 mg SC q4w+6 Month Prednisone
44.550
± 6.7199
PartA:Placebo SC q2w + 6 Month Prednisone
42.959
± 4.8484
PartA:Placebo SC q2w + 12 Month Prednisone
46.755
± 4.8284
Part A: Mean EuroQol - 5 Dimensions, 5 Levels (EQ-5D-5L) Index Score Over TimeSecondary· Baseline (Week 0) and Weeks 12, 24, 36, 52
EuroQoL-5 Dimensions consist of 2 elements: the EQ-5D descriptive system and the EQ visual analogue scale (EQ VAS). The EQ-5D descriptive system comprised of following 5 dimensions: 1.Mobility, 2.Self-Care, 3.Usual Activities, 4.Pain/Discomfort and 5.Anxiety/Depression. Each of these 5 dimensions has 5 levels: 1: no problems; 2: slight problems; 3: moderate problems; 4: severe problems; 5: Unable to do. The digits for each of 5 dimensions were combined in a 5-digit number describing the participant's health state: e.g. state 11111 indicates no problem on any of the 5 dimensions. Index score wa
Baseline, n=42,38,25,23,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0.7918
± 0.20589
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0.6681
± 0.31299
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0.6912
± 0.19348
PartA:Placebo SC q2w + 6 Month Prednisone
0.7429
± 0.22387
PartA:Placebo SC q2w + 12 Month Prednisone
0.7554
± 0.16610
Week 12, n=31,28,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0.7866
± 0.22042
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0.7024
± 0.22087
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0.7452
± 0.17942
PartA:Placebo SC q2w + 6 Month Prednisone
0.7228
± 0.16993
PartA:Placebo SC q2w + 12 Month Prednisone
0.7069
± 0.22289
Week 24, n=23,20,15,17,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0.7485
± 0.20310
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0.7217
± 0.21397
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0.7135
± 0.24006
PartA:Placebo SC q2w + 6 Month Prednisone
0.7323
± 0.10346
PartA:Placebo SC q2w + 12 Month Prednisone
0.7301
± 0.11498
Week 36, n=15,13,10,12,13
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0.8011
± 0.13468
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0.7454
± 0.22373
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0.7774
± 0.11809
PartA:Placebo SC q2w + 6 Month Prednisone
0.6950
± 0.15242
PartA:Placebo SC q2w + 12 Month Prednisone
0.7506
± 0.17536
Week 52, n=9,5,5,5,4
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
0.8210
± 0.13502
PartA:SIR 100 mg SC q2w+3 Month Prednisone
0.7628
± 0.15352
PartA:SIR 50 mg SC q4w+6 Month Prednisone
0.8092
± 0.04275
PartA:Placebo SC q2w + 6 Month Prednisone
0.7864
± 0.05892
PartA:Placebo SC q2w + 12 Month Prednisone
0.8068
± 0.06050
Part A: Mean EQ-5D-5L Visual Analogue Scale (VAS) Over TimeSecondary· Baseline (Week 0) and Weeks 12, 24, 36, 52
EQ-5D essentially consists of 2 elements: the EQ-5D descriptive system and the EQ VAS. The EQ-5D descriptive system comprised of the following 5 dimensions: 1.Mobility, 2.Self-Care, 3.Usual Activities, 4.Pain/Discomfort and 5.Anxiety/Depression. Each of these 5 dimensions has 5 levels: 1: no problems; 2: slight problems; 3: moderate problems; 4: severe problems; 5: Unable to do. The digits for each of the 5 dimensions were combined in a 5-digit number describing the participant's health state: e.g. state 11111 indicates no problem on any of the 5 dimensions. The index score was derived from th
Baseline, n=42,38,25,23,27
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
67.0
± 17.83
PartA:SIR 100 mg SC q2w+3 Month Prednisone
65.6
± 21.43
PartA:SIR 50 mg SC q4w+6 Month Prednisone
57.0
± 17.61
PartA:Placebo SC q2w + 6 Month Prednisone
62.1
± 23.81
PartA:Placebo SC q2w + 12 Month Prednisone
65.1
± 16.00
Week 12, n=31,28,24,22,22
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
74.3
± 19.77
PartA:SIR 100 mg SC q2w+3 Month Prednisone
64.2
± 22.89
PartA:SIR 50 mg SC q4w+6 Month Prednisone
68.4
± 19.39
PartA:Placebo SC q2w + 6 Month Prednisone
63.3
± 22.61
PartA:Placebo SC q2w + 12 Month Prednisone
65.5
± 21.33
Week 24, n=23,20,15,17,16
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
74.6
± 16.26
PartA:SIR 100 mg SC q2w+3 Month Prednisone
70.6
± 24.05
PartA:SIR 50 mg SC q4w+6 Month Prednisone
65.1
± 23.11
PartA:Placebo SC q2w + 6 Month Prednisone
64.9
± 19.03
PartA:Placebo SC q2w + 12 Month Prednisone
61.5
± 19.71
Week 36, n=15,13,10,12,13
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
79.5
± 9.55
PartA:SIR 100 mg SC q2w+3 Month Prednisone
73.9
± 24.55
PartA:SIR 50 mg SC q4w+6 Month Prednisone
66.9
± 20.72
PartA:Placebo SC q2w + 6 Month Prednisone
68.3
± 18.66
PartA:Placebo SC q2w + 12 Month Prednisone
61.6
± 21.29
Week 52, n=9,5,5,5,4
Group
Value
95% CI
PartA:SIR 100 mg SC q2w+6 Month Prednisone
79.9
± 9.74
PartA:SIR 100 mg SC q2w+3 Month Prednisone
80.6
± 16.50
PartA:SIR 50 mg SC q4w+6 Month Prednisone
78.4
± 14.77
PartA:Placebo SC q2w + 6 Month Prednisone
60.2
± 26.33
PartA:Placebo SC q2w + 12 Month Prednisone
70.0
± 27.41
Adverse events — posted to ClinicalTrials.gov
Time frame: On-treatment serious Adverse events (SAEs) and non-serious Adverse Events (nSAEs) were collected from the start of study treatment up to Week 52 in Part A and up to Week 120 in Part B..
Reporting threshold: 5%.
Adverse-event reports describe events observed during the trial — not all are caused by the drug.
Part A:SIR 100 mg SC q2w+6 Month Prednisone
Serious: 8/42 (19%)
Deaths: 0/42
Part A:SIR 100 mg SC q2w+3 Month Prednisone
Serious: 6/39 (15%)
Deaths: 0/39
Part A: SIR 50 mg SC q4w+6 Month Prednisone
Serious: 6/26 (23%)
Deaths: 0/26
Part A:Placebo SC q2w + 6 Month Prednisone
Serious: 5/27 (19%)
Deaths: 0/27
Part A:Placebo SC q2w + 12 Month Prednisone
Serious: 6/27 (22%)
Deaths: 0/27
Part B:SIR 100 mg SC q2w+6 Month Prednisone+100mg OL SIR
Serious: 0/2 (0%)
Deaths: 0/2
Part B:SIR 100 mg SC q2w+3 Month Prednisone+100mg OL SIR
Serious: 0/1 (0%)
Deaths: 0/1
Part B:SIR 50 mg SC q4w+6 Month Prednisone+100mg OL SIR
Serious: 0/1 (0%)
Deaths: 0/1
Part B:Placebo SC q2w + 6 Month Prednisone+100mg OL SIR
Serious: 0/2 (0%)
Deaths: 0/2
Part B:Placebo SC q2w + 12 Month Prednisone+100mg OL SIR
Serious: 0/2 (0%)
Deaths: 0/2
Part B:SIR 100 mg SC q2w+6 Month Prednisone/ No 100mg OL SIR
Serious: 0/6 (0%)
Deaths: 0/6
Part B:SIR 100 mg SC q2w+3 Month Prednisone/ No 100mg OL SIR
Serious: 0/4 (0%)
Deaths: 0/4
Part B:SIR 50 mg SC q4w+6 Month Prednisone/ No 100mg OL SIR
Serious: 0/3 (0%)
Deaths: 0/3
Part B:Placebo SC q2w + 6 Month Prednisone/ No 100mg OL SIR
Serious: 0/3 (0%)
Deaths: 0/3
Part B:Placebo SC q2w + 12 Month Prednisone/ No 100mg OL SIR
Serious: 0/2 (0%)
Deaths: 0/2
Serious adverse events (37 terms)
Reaction
System
Part A:SIR 100 mg SC q2w+6…
Part A:SIR 100 mg SC q2w+3…
Part A: SIR 50 mg SC q4w+6…
Part A:Placebo SC q2w + 6 …
Part A:Placebo SC q2w + 12…
Part B:SIR 100 mg SC q2w+6…
Part B:SIR 100 mg SC q2w+3…
Part B:SIR 50 mg SC q4w+6 …
Part B:Placebo SC q2w + 6 …
Part B:Placebo SC q2w + 12…
Part B:SIR 100 mg SC q2w+6…
Part B:SIR 100 mg SC q2w+3…
Part B:SIR 50 mg SC q4w+6 …
Part B:Placebo SC q2w + 6 …
Part B:Placebo SC q2w + 12…
Syncope
Nervous system disorders
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Clostridium difficile colitis
Infections and infestations
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Escherichia sepsis
Infections and infestations
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Metapneumovirus infection
Infections and infestations
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Pneumonia
Infections and infestations
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Urinary tract infection
Infections and infestations
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Vestibular neuronitis
Infections and infestations
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Brain contusion
Injury, poisoning and procedural complications
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Fall
Injury, poisoning and procedural complications
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Rib fracture
Injury, poisoning and procedural complications
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Spinal compression fracture
Injury, poisoning and procedural complications
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Subdural haematoma
Injury, poisoning and procedural complications
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Headache
Nervous system disorders
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Transient ischaemic attack
Nervous system disorders
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Intervertebral disc protrusion
Musculoskeletal and connective tissue disorders
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Spinal osteoarthritis
Musculoskeletal and connective tissue disorders
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Synovial cyst
Musculoskeletal and connective tissue disorders
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Tenosynovitis
Musculoskeletal and connective tissue disorders
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Asthenia
General disorders
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Chest discomfort
General disorders
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Pyrexia
General disorders
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Angina pectoris
Cardiac disorders
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Atrial fibrillation
Cardiac disorders
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Malignant melanoma in situ
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
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Squamous cell carcinoma
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Sirukumab is a fully human anti-interleukin-6 (IL-6) immunoglobulin G1-kappa with a high affinity and specificity for binding to the human IL-6 molecule that may have therapeutic benefit in the treatment of giant cell arteritis (GCA) by interruption of multiple pathogenic pathways. Sirukumab inhibits IL-6-mediated signal transducer and activator of transcription 3 (STAT3) phosphorylation, resulting in the inhibition of the biological effect of IL-6. This study will evaluate the efficacy and safety of sirukumab to characterize the benefit-to-risk profile of sirukumab in the treatment of active GCA. The study will be conducted in 2 distinct parts (Part A and Part B) and consists of the following phases: Screening phase, Part A: 52-week double-blind treatment phase, Part B: 104-week extension phase with the option to receive open-label sirukumab based on disease status and a 16-week follow-up phase if applicable.
Approximately 204 subjects with a diagnosis of GCA and active disease within 6 weeks of baseline will be randomized into Part A, the 52-week double-blind treatment phase, to receive one of two doses of sirukumab or placebo, each in addition to a pre-specified prednisone taper. The efficacy and safety of sirukumab in sustaining remission will be assessed at Week 52. Subjects completing Part A of the study will be eligible to enter Part B, the 104-week extension phase, designed to investigate the long-term maintenance of remission and safety following cessation of sirukumab treatment and to assess long-term corticosteroid use. Subjects with active GCA at the end of Part A or those with new onset of GCA flare during the first 52 weeks of Part B will be eligible to receive open-label sirukumab. Subjects will need to have follow-up safety evaluations for at least 16 weeks after receiving the last dose of study drug, applicable only for those who are withdrawn prematurely from the study or whose open-label sirukumab treatment in Part B completes after Week 88.
Publications & conference data
8 peer-reviewed publications reference this trial (live from Europe PMC):
NCT04380961 — A Study to Evaluate the Efficacy and Safety of Sirukumab in Confirmed Severe or Critical Confirmed Coronavirus Disease (
· Phase 2
· completed
NCT02899026 — Efficacy and Safety Study of Sirukumab in Subjects With Polymyalgia Rheumatica
· Phase 3
· withdrawn
NCT02794519 — A Phase 2a Study to Evaluate the Effects of Sirukumab in Subjects With Severe Poorly Controlled Asthma
· Phase 2
· withdrawn
NCT01636557 — A Study to Evaluate the Effect of a Single Dose of CNTO 136 (Sirukumab) on CYP450 Enzyme Activities After Subcutaneous A
· Phase 1
· completed
NCT01604343 — A Study of CNTO 136 (Sirukumab), Administered Subcutaneously, in Patients With Active Rheumatoid Arthritis Despite Disea
· Phase 3
· completed
Other recruiting trials for Giant Cell Arteritis
Currently open trials in the same condition.
NCT07084480 — Giant Cell Arteritis - Ways to Precision Medicine
· recruiting
NCT06894602 — Association of Ultrasonographic Temporal Artery Lesions and Relapse in Patients With Giant Cell Arteritis
· recruiting
NCT06460142 — Assessing Biomarker in Giant Cell Arteritis and Polymyalgia Rheumatic
· recruiting
NCT06011512 — Risk of Diabetes Mellitus in Patients With Giant Cell Arthritis and Polymyalgia Rheumatica.
· recruiting
Other GlaxoSmithKline trials
Trials by the same sponsor.
NCT07569081 — A Study Evaluating the Efficacy and Safety of Momelotinib in Participants With Vacuoles, E1-enzyme, X-linked, Autoinflam
· Phase 2, PHASE3
· not yet recruiting
NCT07406347 — A Trial to Evaluate the Safety and Reactogenicity of an Investigational Pneumococcal Vaccine in Infants Receiving 3-dose
· Phase 1
· not yet recruiting
NCT07286266 — A Study to Investigate GSK5733584 Compared With Chemotherapy in Participants With Platinum-resistant Ovarian Cancer (BEH
· Phase 3
· not yet recruiting
NCT07286331 — A Study to Investigate GSK5733584 Compared With Chemotherapy in Participants With Recurrent Endometrial Cancer (BEHOLD-E
· Phase 3
· not yet recruiting
NCT07406334 — A Trial to Evaluate the Safety and Reactogenicity of an Investigational Pneumococcal Vaccine in Toddlers 12 to 15 Months
· Phase 1
· not yet recruiting
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by GlaxoSmithKline
Last refreshed: 31 July 2019
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT02531633.