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Completed

NCT Number: NCT03536884

A Study to Evaluate the Efficacy and Safety of Bimekizumab Compared to an Active Comparator in Adult Subjects With Moderate to Severe Chronic Plaque Psoriasis

This is a study to compare the efficacy of bimekizumab versus secukinumab in subjects with moderate to severe chronic plaque psoriasis (PSO).

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Key information

Conditions

Chronic Plaque Psoriasis Moderate to Severe Chronic Plaque Psoriasis Psoriasis Skin Diseases Skin Diseases, Papulosquamous Skin and Connective Tissue Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

PS0015 3, Carlton, Australia

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About this study

The study consists of a 48-week double-blind Treatment Period, an optional 96-week open-label extension (OLE) Period and an optional 48-week OLE2 Period for eligible subjects in the USA and Canada.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

Double-blind Treatment Period

  • Male or female at least 18 years of age
  • Subject must have had chronic plaque psoriasis (PSO) for at least 6 months prior to the Screening visit
  • Subject must have Psoriasis Area Severity Index (PASI) >=12 and body surface area (BSA) affected by PSO >=10% and Investigator's Global Assessment (IGA) score >=3 on a 5 point scale
  • Subject must be a candidate for systemic PSO therapy and/or phototherapy
  • Subject must be considered, in the opinion of the Investigator, to be a suitable candidate for treatment with secukinumab per regional labeling and has no contraindications to receive secukinumab as per the local label
  • Female subject of childbearing potential must be willing to use highly effective method of contraception

Open-label extension (OLE) Period

  • Completed the double-blind Treatment Period without meeting any withdrawal criteria
  • All Week 48 visit assessments completed
  • Compliant with ongoing clinical study requirements
  • Signed a separate OLE Period Informed Consent Form (ICF)
  • Female subject of childbearing potential must be willing to use highly effective method of contraception

OLE2 Period (USA and Canada)

  • Completed the OLE Period without meeting any withdrawal criteria
  • Compliant with ongoing clinical study requirements
  • Female subject of childbearing potential must be willing to use highly effective method of contraception
  • Subjects with a diagnosis of Crohn's disease or ulcerative colitis are allowed as long as they have no active symptomatic disease (US only)
  • Signed a separate OLE2 Period ICF

Exclusion criteria

Double-blind Treatment Period

  • Subject has an active infection (except common cold), a serious infection, or a history of opportunistic, recurrent or chronic infections
  • Subject has concurrent acute or chronic viral hepatitis B or C or human immunodeficiency virus (HIV) infection
  • Subject has known tuberculosis (TB) infection, is at high risk of acquiring TB infection, or has current or history of nontuberculous mycobacterium (NTMB) infection
  • Subject has any other condition, including medical or psychiatric, which, in the Investigator's judgment, would make the subject unsuitable for inclusion in the study
  • Presence of active suicidal ideation or severe depression
  • Subject has any active malignancy or history of malignancy within 5 years prior to the Screening Visit EXCEPT treated and considered cured cutaneous squamous or basal cell carcinoma, or in situ cervical cancer

OLE2 Period (USA and Canada)

  • Subject has developed any medical or psychiatric condition, which, in the Investigator's judgment, would make the subject unsuitable for inclusion in OLE2 Period
  • Subject had a positive or indeterminate interferon-gamma release assay (IGRA) in the OLE study to Week 144, unless appropriately evaluated and treated
  • Presence of active suicidal ideation or severe depression
  • Subject has developed any active malignancy or history of malignancy prior to the OLE2 Screening Visit EXCEPT treated and considered cured cutaneous squamous or basal cell carcinoma, or in situ cervical cancer

Treatment and study plan

Bimekizumab

Drug

Subjects will receive bimekizumab at pre-specified time-points.

Other names: UCB4940

secukinumab

Drug

Subjects will receive secukinumab at pre-specified time-points.

Other names: COSENTYX®

Placebo

Other

Subjects will receive placebo at pre-specified time-points to maintain the blinding in the double-blind Treatment Period.

Other names: PBO

Primary outcomes

  1. Percentage of Participants With a Psoriasis Area and Severity Index 100 (PASI100) Response at Week 16

    Time frame: Week 16

    The PASI100 response assessments are based on 100% improvement in PASI score from Baseline. Body divided into 4 areas: head, arms, trunk to groin, and legs to top of buttocks. Assignment of an average score for the redness, thickness, and scaling for each of the 4 body areas with a score of 0 (clear) to 4 (very marked). Determining the percentage of skin covered with PSO for each of body areas and converting to a 0 to 6 scale. Final PASI= average redness, thickness, and scaliness of the psoriatic skin lesions, multiplied by the involved psoriasis area score of the respective section, and weighted by the percentage of the person's affected skin for the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.

Secondary outcomes

  1. Percentage of Participants With a PASI75 Response at Week 4

    Time frame: Week 4

    The PASI75 response assessments are based on at least 75% improvement in PASI score from Baseline. Body divided into 4 areas: head, arms, trunk to groin, and legs to top of buttocks. Assignment of an average score for redness, thickness, and scaling for each of the 4 body areas with score of 0 (clear) to 4 (very marked). Determining the percentage of skin covered with PSO for each of body areas and converting to 0 to 6 scale. Final PASI= average redness, thickness, and scaliness of the psoriatic skin lesions, multiplied by the involved psoriasis area score of the respective section, and weighted by the percentage of the person's affected skin for the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.

  2. Percentage of Participants With a PASI90 Response at Week 16

    Time frame: Week 16

    The PASI90 response assessments are based on at least 90% improvement in PASI score from Baseline. Body divided into 4 areas: head, arms, trunk to groin, and legs to top of buttocks. Assignment of an average score for redness, thickness, and scaling for each of the 4 body areas with score of 0 (clear) to 4 (very marked). Determining the percentage of skin covered with PSO for each of the body areas and converting to a 0 to 6 scale. Final PASI=average redness, thickness, and scaliness of the psoriatic skin lesions, multiplied by the involved psoriasis area score of the respective section, and weighted by the percentage of the person's affected skin for respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.

  3. Percentage of Participants With a PASI100 Response at Week 48

    Time frame: Week 48

    The PASI100 response assessments are based on 100% improvement in PASI score from Baseline. Body divided into 4 areas: head, arms, trunk to groin, and legs to top of buttocks. Assignment of an average score for the redness, thickness, and scaling for each of the 4 body areas with a score of 0 (clear) to 4 (very marked). Determining the percentage of skin covered with PSO for each of body areas and converting to a 0 to 6 scale. Final PASI= average redness, thickness, and scaliness of the psoriatic skin lesions, multiplied by the involved psoriasis area score of the respective section, and weighted by the percentage of the person's affected skin for the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.

  4. Percentage of Participants With a Investigator´s Global Assessment (IGA) Response (0/1) at Week 16

    Time frame: Week 16

    The IGA measures the overall psoriasis severity following a 5-point scale (0-4), where scale 0= clear, no signs of psoriasis; presence of post-inflammatory hyperpigmentation, scale 1= almost clear, no thickening; normal to pink coloration; no to minimal focal scaling, scale 2= mild thickening, pink to light red coloration and predominately fine scaling, 3= moderate, clearly distinguishable to moderate thickening; dull to bright red, clearly distinguishable to moderate thickening; moderate scaling and 4= severe thickening with hard edges; bright to deep dark red coloration; severe/coarse scaling covering almost all or all lesions. IGA response was defined as Clear (0) or Almost Clear (1) with at least a two-category improvement from Baseline at Week 16.

  5. Number of Treatment-emergent Adverse Events (TEAEs) Adjusted by Duration of Participant Exposure to Investigational Medicinal Product (IMP) From Baseline up to Week 225

    Time frame: From Baseline up to Week 225

    The number of TEAEs adjusted by duration of exposure to study treatment was scaled such that provided an incidence rate per 100 patient-years. If a participant had multiple events, the time of exposure was calculated to the first occurrence of the AE being considered. If a participant had no events, the total time at risk was used.

  6. Number of Serious Adverse Events (SAEs) Adjusted by Duration of Participant Exposure to IMP From Baseline up to Week 225

    Time frame: From Baseline up to Week 225

    The number of SAEs adjusted by duration of exposure to study treatment was scaled such that it provided an incidence rate per 100 patient-years. If a participant had multiple events, the time of exposure was calculated to the first occurrence of the AE being considered. If a participant had no events, the total time at risk was used.

  7. Number of TEAEs Leading to Withdrawal Adjusted by Duration of Participant Exposure to IMP From Baseline up to Week 225

    Time frame: From Baseline up to Week 225

    The number of TEAEs leading to discontinuation adjusted by duration of exposure to study treatment was scaled such that it provided an incidence rate per 100 patient-years. If a participant had multiple events, the time of exposure was calculated to the first occurrence of the AE being considered. If a participant had no events, the total time at risk was used.

Sponsors and collaborators

Lead sponsor

UCB Biopharma SRL

Industry

Registry information

Official study title

A Multicenter, Randomized, Double-Blind, Secukinumab-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of Bimekizumab in Adult Subjects With Moderate to Severe Chronic Plaque Psoriasis

Acronym: BE RADIANT

Important dates

Study start
2018
Primary completion
2019
Study completion
2023
First posted
May 25, 2018
Registry last updated
Apr 15, 2026

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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