Rheumatoid Arthritis
The efficacy and safety of Simponi Aria were evaluated in one multicenter, randomized, double-blind, controlled trial (Trial RA, NCT00973479) in 592 patients ≥18 years of age with moderately to severely active RA despite concurrent MTX therapy and had not previously been treated with a biologic TNF-blocker. Patients were randomly assigned to receive either Simponi Aria 2 mg/kg (N=395) or placebo (N=197) over a 30-minute intravenous infusion at Weeks 0, 4 and every 8 weeks thereafter in addition to their weekly maintenance MTX dose (15-25 mg).
All patients receiving placebo + MTX received Simponi Aria + MTX after Week 24, but the trial remained blinded until all patients had completed 108 weeks of treatment. Efficacy data were collected and analyzed through Week 52. The primary endpoint in Trial RA was the percentage of patients achieving an American College of Rheumatology (ACR) 20 response at Week 14.
Clinical Response: Results showed that treatment with Symponi Aria ± MTX achieved the following ACR responses vs placebo ± MTX, respectively:
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ACR 20
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Week 14: 59% vs 25% (for difference in proportions with 95% CI, 25.9-41.4)
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Week 24: 63% vs 32% (for difference in proportions with 95% CI, 23.3-39.4)
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ACR 50
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Week 14: 30% vs 9% (for difference in proportions with 95% CI, 15.3-27.2)
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Week 24: 35% vs 13% (for difference in proportions with 95% CI, 15.1-28.4)
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ACR 70
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Week 14: 12% vs 3% (for difference in proportions with 95% CI, 5.3-13.4)
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Week 24: 18% vs 4% (for difference in proportions with 95% CI, 8.8-18.1)
At week 14, treatment with Symponi Aria ± MTX also achieved the following improvements in the components of ACR response vs placebo ± MTX, respectively:
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Number of swollen joints (0-66):
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Baseline: 15 vs 15
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Week 14: 6 vs 11
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Number of tender joints (0-68):
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Baseline: 26 vs 26
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Week 14: 13 vs 20
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Patient’s assessment of pain (0-10):
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Baseline: 6.5 vs 6.5
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Week 14: 3.9 vs 5.6
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Patient’s global assessment of disease activity (0-10):
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Baseline: 6.5 vs 6.5
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Week 14: 4.0 vs 5.5
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Physician’s global assessment of disease activity (0-10):
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Baseline: 6.2 vs 6.3
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Week 14: 3.1 vs 4.9
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HAQ score (0-3):
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Baseline: 1.6 vs 1.6
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Week 14: 1.1 vs 1.4
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CRP (mg/dL):
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Baseline: 2.8 vs 2.2
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Week 14: 0.9 vs 1.8
At Week 14, a greater proportion of patients treated with Symponi Aria + MTX achieved a low level of disease activity as measured by a DAS28-CRP less than 2.6 compared with the placebo + MTX group (15% vs 5%; 95% CI for difference [6.3%, 15.5%]).
Radiographic Response: In Trial RA, structural joint damage was assessed radiographically and expressed as a change in van der Heijde-Modified Sharp Score (vdH-S) and its components, the erosion score and Joint Space Narrowing (JSN) score, at Week 24 compared to baseline. Treatment with Symponi Aria + MTX inhibited the progression of structural damage with a mean change in total vdH-S score of 0.03 at week 24 compared with 1.1 for placebo + MTX (P ≤.001).
At Week 24, 71% of patients treated with Symponi Aria + MTX had no progression of structural damage (change in the total vdH-S score ≤ 0), compared with 57% of patients treated with placebo + MTX. At Week 52, the mean change from baseline in total vdH-S score was 1.2 in patients originally randomized to placebo + MTX who crossed over to Symponi Aria + MTX at Week 16 or Week 24, and 0.1 in patients originally randomized to Symponi Aria + MTX who remained on active treatment.
Physical Function Response in Patients with RA: Physical function was assessed by the disability index of the Health Assessment Questionnaire (HAQ-DI). At Week 14, the Symponi Aria + MTX group achieved a greater mean improvement in the HAQ-DI compared with placebo + MTX (0.5 vs 0.2; 95% CI for difference [0.2, 0.4]).
Other Health-Related Outcomes: In Trial RA, patients treated with Symponi Aria + MTX achieved greater improvement from baseline compared with placebo + MTX in physical component summary (PCS), mental component summary (MCS) scores and in all 8 domains of the SF-36. Fatigue was assessed by the Functional Assessment of Chronic Illness Therapy-Fatigue score (FACIT-F) in Trial RA. Treatment with Symponi Aria resulted in improvement in fatigue as measured by FACIT-F.
Psoriatic Arthritis
The efficacy and safety of Symponi Aria were evaluated in a multicenter, randomized, double-blind, placebo-controlled trial in 480 patients ≥ 18 years of age with active psoriatic arthritis despite NSAID or DMARD therapy (Trial PsA, NCT02181673). Previous treatment with a biologic was not allowed. Patients were randomized to either receive Symponi Aria 2 mg/kg (N=241) or placebo (N=239) as a 30-minute intravenous infusion at Weeks 0, 4, 12 and 20. All patients on placebo received Symponi Aria at Week 24, Week 28 and every 8 weeks thereafter through Week 52. Patients in the Symponi Aria treatment group continued to receive Symponi Aria infusions at Week 28 and every 8 weeks through Week 52.
Patients were allowed to continue stable doses of MTX, NSAIDs, and low dose oral corticosteroids (equivalent to ≤ 10 mg of prednisone per day) during the trial. The use of other DMARDs including cytotoxic agents or other biologics was prohibited. The primary endpoint was the percentage of patients achieving an ACR 20 response at Week 14.
Clinical Response: Results showed that treatment with Symponi Aria ± MTX achieved the following ACR responses vs placebo, respectively:
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ACR 20
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Week 14: 75% vs 22% (difference from placebo, 53%; 95% CI, 46-61; P <.001)
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Week 24: 77% vs 24% (difference from placebo, 53%; 95% CI, 45-60)
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ACR 50
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Week 14: 44% vs 6.3% (difference from placebo, 37%; 95% CI, 30-44)
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Week 24: 54% vs 6.3% (difference from placebo, 47%; 95% CI, 40-54)
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ACR 70
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Week 14: 25% vs 2.1% (difference from placebo, 22%; 95% CI, 17-28)
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Week 24: 33% vs 3.3% (difference from placebo, 29%; 95% CI, 23-36)
At week 14, treatment with Symponi Aria ± MTX achieved the following mean changes in ACR components vs placebo ± MTX, respectively:
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Number of swollen joints (0-66):
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Baseline: 14 vs 14
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Week 14: -11 vs -2.9
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Number of tender joints (0-68):
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Baseline: 25 vs 26
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Week 14: -15 vs -4.2
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Patient’s assessment of pain (0-100 mm):
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Baseline: 63 vs 64
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Week 14: -31 vs -11
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Patient global assessment (0-100 mm):
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Baseline: 65 vs 63
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Week 14: -32 vs -11
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Physician global assessment (0-100 mm):
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Baseline: 62 vs 64
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Week 14: -39 vs -13
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Health Assessment Questionnaire-Disability Index (HAQ-DI) score (0-3):
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Baseline: 1.3 vs 1.3
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Week 14: -0.60 vs -0.13
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hsCRP (mg/L):
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Baseline: 19 vs 20
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Week 14: -16 vs -2.9
Simponi Aria-treated patients also showed a significantly greater improvement in enthesitis, with a mean reduction of 1.8 as compared with a mean reduction in placebo-treated patients of 0.8 at Week 14. Patients with dactylitis at baseline were evaluated for mean improvement on a scale of 0-60. Simponi Aria-treated patients showed a significantly greater improvement, with a mean reduction of 7.8 compared with a mean reduction of 2.8 in placebo-treated patients at Week 14.
Radiographic Response: In Trial PsA, structural joint damage was assessed radiographically and expressed as a change from baseline at Week 24 in total modified vdH-S score and its components, the erosion score and JSN score.
Simponi Aria inhibited the progression of structural joint damage with a -0.4 change in total modified vdH-S score compared with 2.0 change for placebo (difference from placebo, -2.3; 95% CI, -2.9, -1.7).
At Week 24, 72% of patients treated with Simponi Aria had no progression of structural damage (change in the total modified vdH-S score ≤ 0), compared with 43% of patients treated with placebo.
Physical Function and Responses: Improvement in physical function as assessed by the Health Assessment Questionnaire Disability Index (HAQ-DI) demonstrated that the proportion of patients who achieved clinically meaningful improvement of ≥ 0.3 in HAQ-DI score from baseline was greater in the Simponi Aria-treated group compared to placebo at Week 14 (69% vs 32%).
Other Health Related Outcomes: General health status was assessed by the 36-item Short Form Health Survey (SF-36). In Trial PsA, patients receiving Simponi Aria achieved greater improvement from baseline compared with placebo in physical component summary, mental component summary scores and in all 8 domains of the SF-36.
Fatigue was assessed by the Functional Assessment of Chronic Illness Therapy-Fatigue score (FACIT-F) in Trial PsA. Treatment with Simponi Aria resulted in improvement in fatigue as measured by FACIT-F.
Treatment of Pediatric Patients: The efficacy of Simponi Aria in pediatric patients with PsA is based on the pharmacokinetic exposure and extrapolation of the established efficacy of Simponi Aria in adult PsA patients in Trial PsA.
Ankylosing Spondylitis
The efficacy and safety of Simponi Aria were evaluated in a multicenter, randomized, double-blind, placebo-controlled trial (Trial AS, NCT02186873) in 208 patients ≥ 18 years of age with active ankylosing spondylitis (AS) and inadequate response or intolerance to NSAIDs. Patients were randomized to receive either Simponi Aria 2 mg/kg (N=105) or placebo (N=103) as a 30-minute intravenous infusion at Weeks 0, 4 and 12. All patients on placebo received Simponi Aria at Week 16, Week 20 and every 8 weeks thereafter through Week 52.
Patients were allowed to continue stable doses of concomitant MTX, SSZ, hydroxychloroquine (HCQ), low dose oral corticosteroids (equivalent to ≤ 10 mg of prednisone per day), and/or NSAIDs during the trial. The use of other DMARDs including cytotoxic agents or other biologics was prohibited. The primary endpoint was the percentage of patients achieving an Assessment in Ankylosing Spondylitis (ASAS) 20 response at Week 16.
Clinical Response: In Trial AS, 73% of patients treated with Simponi Aria treatment achieved an ASAS 20 response at week 16 compared with 26% of patients treated with placebo (treatment difference, 47%; 95% CI, 35-59; P <.001).
Moreover, 48% of patients treated with Simponi Aria treatment achieved an ASAS 40 response at week 16 compared with 8.7% of patients treated with placebo (treatment difference, 39%; 95% CI, 28-50).
At week 14, treatment with Symponi Aria achieved the following mean changes in ACR 20 components and other measures of disease activity vs placebo, respectively:
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Patient global assessment of disease activity (0-100 mm):
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Baseline: 73 vs 71
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Week 14: -34 vs -8.3
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Total Back Pain (0-100 mm):
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Baseline: 73 vs 72
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Week 14: -32 vs -12
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Bath Ankylosing Spondylitis Functional Index (BASFI) (0-10):
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Baseline: 6.3 vs 6.1
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Week 14: -2.4 vs -0.5
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Inflammation (0-10):
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Baseline: 7.3 vs 7.4
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Week 14: -3.6 vs -1.1
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BASDAI Score
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Baseline: 7.1 vs 7.1
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Week 14: -3.1 vs -1.1
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Bath Ankylosing Spondylitis Metrology Index (BASMI):
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Baseline: 5.0 vs 5.0
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Week 14: -0.4 vs -0.1
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hsCRP (mg/L)
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Baseline: 20 vs 19
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Week 14: -17 vs -2.3
At Week 16, a greater percentage of patients treated with Simponi Aria achieved a low level of disease activity (<2 [on a scale of 0 to 10 cm] in all four ASAS domains) compared with patients treated with placebo (16.2% vs 3.9%).
Other Health-Related Outcomes: General health status was assessed by the 36-item Short Form Health Survey (SF-36). In Trial AS, patients receiving Simponi Aria demonstrated greater improvement from baseline compared with placebo in physical component summary and mental component summary scores and in all 8 domains of the SF-36.
Simponi Aria-treated patients showed significant improvement compared with placebo-treated patients in health related quality of life as assessed by the Ankylosing Spondylitis Quality of Life questionnaire (ASQoL).
Polyarticular Juvenile Idiopathic Arthritis (pJIA)
The efficacy of Simponi Aria in pediatric patients with pJIA is based on the pharmacokinetic exposure and extrapolation of the established efficacy of Simponi Aria in RA patients. Efficacy of Simponi Aria was also assessed in a multicenter, open-label, single-arm study in 127 children (2 to < 18 years of age) with JIA with active polyarthritis despite treatment with MTX for at least 2 months (Trial pJIA, NCT02277444). All patients received Simponi Aria 80 mg/m2 as an intravenous infusion at Week 0, 4, and every 8 weeks through Week 52. Patients continued stable doses of MTX weekly through Week 28; after Week 28, changes in MTX dose were permitted. Efficacy was assessed as supportive endpoints through Week 52. The efficacy was generally consistent with responses in patients with RA.