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Completed

NCT Number: NCT03573323

A Study of Ixekizumab (LY2439821) Compared to Guselkumab in Participants With Moderate-to-Severe Plaque Psoriasis

The purpose of this study is to compare the efficacy and safety of ixekizumab to guselkumab in participants with moderate-to-severe plaque psoriasis.

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Key information

Conditions

Plaque Psoriasis

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Dermatology Research Institute Inc., Calgary, Alberta, Canada

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Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Have chronic plaque psoriasis based on a diagnosis for at least 6 months before baseline as determined by the investigator.
  • Are a candidate for phototherapy and/or systemic therapy.
  • Have both an Static Physician Global Assessment (sPGA) score of ≥3 and a Psoriasis Area and Severity Index (PASI) score ≥12 at screening and at baseline.
  • Have ≥10% body surface area (BSA) involvement at screening and baseline.
  • If a male, agree to use a reliable method of birth control during the study.
  • If female, agree to use highly effective method of contraception.

Exclusion criteria

  • Predominant pattern of pustular, erythrodermic, and/or guttate forms of psoriasis.
  • Have a history of drug-induced psoriasis.
  • Had a clinically significant flare of psoriasis during the 12 weeks before baseline.
  • Use of tanning booths for at least 4 weeks before baseline.
  • Concurrent or recent use of any biologic agent within the following periods prior to baseline: etanercept <28 days; infliximab, adalimumab, certolizumab pegol, or alefacept <60 days; golimumab <90 days; rituximab <12 months; secukinumab <5 months; or any other biologic agent (e.g., ustekinumab) <5 half lives.
  • Have prior use of IL-23p19 antagonists (e.g., guselkumab, tildrakizumab, risankizumab), or have any condition or contraindication as addressed in the local labeling for guselkumab that would preclude the participant from participating in this protocol.
  • Have previously completed or withdrawn from this study, participated in any other study with ixekizumab or guselkumab, have participated in any study investigating IL-23p19 antagonists, or have received treatment with ixekizumab.
  • Have previously failed to respond to an IL-17 antagonist, per investigator assessment.
  • Have had a live vaccination within 12 weeks of baseline.
  • Have a known allergy or hypersensitivity to any biologic therapy.
  • Have had any major surgery within 8 weeks of baseline.
  • Have had a serious infection, have been hospitalized, or have received intravenous antibiotics for an infection within 12 weeks of baseline.
  • Are women who are pregnant, or who are lactating (breast-feeding).

Treatment and study plan

Ixekizumab

Drug

Administered SC

Other names: LY2439821

Guselkumab

Drug

Administered SC

Placebo

Drug

Administered SC

Primary outcomes

  1. Percentage of Participants Achieving 100% Improvement From Baseline in Psoriasis Area and Severity Index (PASI 100)

    Time frame: Week 12

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 100 were defined as having an improvement of at least 100% in the PASI scores compared to baseline.

Secondary outcomes

  1. Percentage of Participants Achieving PASI 75

    Time frame: Week 2

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 75 were defined as having an improvement of at least 75% in the PASI scores compared to baseline.

  2. Percentage of Participants Achieving PASI 90

    Time frame: Week 4

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 90 were defined as having an improvement of at least 90% in the PASI scores compared to baseline.

  3. Percentage of Participants Achieving PASI 100

    Time frame: Week 4

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 100 were defined as having an improvement of at least 100% in the PASI scores compared to baseline.

  4. Percentage of Participants Achieving PASI 90

    Time frame: Week 8

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 90 were defined as having an improvement of at least 90% in the PASI scores compared to baseline.

  5. Percentage of Participants Achieving Static Physician Global Assessment (sPGA) (0)

    Time frame: Week 12

    The sPGA is a physician's determination of the participant's psoriasis lesions overall at a given time point categorized by descriptions for induration, erythema, and scaling. For the analysis of responses, the participant's psoriasis is assessed as clear (0), minimal (1), mild (2), moderate (3), severe (4), or very severe (5). An sPGA (0) response was defined as a post-baseline sPGA score of 0.

  6. Percentage of Participants Achieving PASI 50

    Time frame: Week 1

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 50 were defined as having an improvement of at least 50% in the PASI scores compared to baseline.

  7. Percentage of Participants Achieving PASI 100

    Time frame: Week 8

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 100 were defined as having an improvement of at least 100% in the PASI scores compared to baseline.

  8. Percentage of Participants Achieving PASI 100

    Time frame: Week 24

    The PASI combines assessments of the extent of body-surface involvement in 4 anatomical regions (head, trunk, arms, and legs) and the severity of desquamation (scaling), erythema, and plaque induration/infiltration (thickness) in each region, yielding an overall score of 0 for no psoriasis to 72 for the most severe disease. Participants achieving PASI 100 were defined as having an improvement of at least 100% in the PASI scores compared to baseline.

Sponsors and collaborators

Lead sponsor

Eli Lilly and Company

Industry

Registry information

Official study title

A 24-Week Multicenter, Randomized, Blinded, Parallel-Group Study Comparing the Efficacy and Safety of Ixekizumab to Guselkumab in Patients With Moderate-to-Severe Plaque Psoriasis

Acronym: IXORA-R

Important dates

Study start
2018
Primary completion
2019
Study completion
2020
First posted
Jun 29, 2018
Registry last updated
Jul 28, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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