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Phase 4 Completed N=566 Randomized Single-blind Treatment

A Study of Ixekizumab (LY2439821) Versus Adalimumab in Participants With Psoriatic Arthritis

Source: ClinicalTrials.gov NCT03151551 ↗
Enrolled (actual)
566
Serious AEs
5.3%
Results posted
Apr 2019
Primary outcomePrimary: Percentage of Participants Simultaneously Achieving American College of Rheumatology 50 (ACR50) and Psoriasis Area and Severity Index 100 (PASI100) — 36; 27.9 percentage of participants — p=0.036
◆ Published Evidence
Established
44citations · ~7 / year
Efficacy and Safety of Ixekizumab with or Without Methotrexate in Biologic-Naïve Patients with Psoriatic Arthritis: 52-Week Results from SPIRIT-H2H Study.
Rheumatology and therapy · 2020 · Open access · Likely link

Summary

The main purpose of this study is to evaluate the effectiveness and safety of ixekizumab versus adalimumab in participants with psoriatic arthritis (PsA) who are biologic disease-modifying anti-rheumatic drugs (DMARD) naive.

Linked Publications (5)

  • Efficacy and Safety of Ixekizumab with or Without Methotrexate in Biologic-Naïve Patients with Psoriatic Arthritis: 52-Week Results from SPIRIT-H2H Study.
    Rheumatology and therapy · 2020 · 44 citations · Open access · Likely link
  • Safety of ixekizumab in patients with psoriatic arthritis: data from four clinical trials with over 2000 patient-years of exposure.
    Annals of the rheumatic diseases · 2022 · 20 citations · Open access · Likely link
  • Simultaneous Nail and Skin Clearance in Ixekizumab Head-to-Head Trials for Moderate-to-Severe Psoriasis and Psoriatic Arthritis.
    Dermatology and therapy · 2022 · 13 citations · Open access · Likely link
  • A Comprehensive Review of Ixekizumab Efficacy in Nail Psoriasis from Clinical Trials for Moderate-to-Severe Psoriasis and Psoriatic Arthritis.
    Rheumatology and therapy · 2023 · 8 citations · Open access · Likely link
  • Synergistic Improvements in Synovitis, Enthesitis, and Patient-Reported Outcomes for Patients with Psoriatic Arthritis Treated with Ixekizumab in SPIRIT Trials.
    Rheumatology and therapy · 2025 · 2 citations · Open access · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
Percentage of Participants Simultaneously Achieving American College of Rheumatology 50 (ACR50) and Psoriasis Area and Severity Index 100 (PASI100)
36; 27.9 0.036 sig
SECONDARY
Percentage of Participants Achieving ACR50
50.5; 46.6
SECONDARY
Percentage of Participants Achieving PASI100
60.1; 46.6 0.001 sig

Eligibility Criteria

Inclusion Criteria

  • Presence of established diagnosis of active psoriatic arthritis for at least 6 months, and currently meets Classification for Psoriatic Arthritis (CASPAR) criteria
  • Active PsA defined as the presence of at least 3 (out of 68) tender and at least 3 (out of 66) swollen joints
  • Presence of active plaque psoriasis with a BSA ≥3%
  • Men must agree to use a reliable method of birth control or remain abstinent during the study
  • Women must agree to use reliable birth control or remain abstinent during the study and for at least 12 weeks after stopping treatment
  • Have had an inadequate response when treated with 1 or more conventional synthetic disease-modifying antirheumatic drugs (csDMARDs)

Exclusion Criteria

  • Current or prior use of biologic agents for treatment of Ps or PsA
  • Evidence of active inflammatory arthritic syndromes or spondyloarthropathies other than PsA
  • Have participated in any study with interleukin 17 (IL-17) antagonists, including ixekizumab
  • Serious disorder or illness other than psoriatic arthritis
  • Serious infection within the last 3 months
  • Active Crohn's disease or active ulcerative colitis
  • Active vasculitis or uveitis
  • Diagnosis of or history of malignant disease <5 years prior to randomization
  • Women who are breastfeeding
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT03151551) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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