A Study to Evaluate the Efficacy and Safety of Bimekizumab in Adult Subjects With Moderate to Severe Chronic Plaque Psoriasis (BE SURE)

April 2, 2026 updated by: UCB Biopharma SRL

A Phase 3, Multicenter, Randomized, Double-Blind Study With an Active-Controlled Initial Treatment Period Followed by a Dose-Blind Maintenance Treatment Period to Evaluate the Efficacy and Safety of Bimekizumab in Adult Subjects With Moderate to Severe Chronic Plaque Psoriasis

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

Study Overview

Study Type

Interventional

Enrollment (Actual)

478

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • East Melbourne, Australia
        • Ps0008 008
      • Fremantle, Australia
        • Ps0008 004
      • Hectorville, Australia
        • Ps0008 007
      • Kogarah, Australia
        • Ps0008 010
      • Phillip, Australia
        • Ps0008 005
      • Woolloongabba, Australia
        • Ps0008 009
      • Calgary, Canada
        • Ps0008 659
      • Mississauga, Canada
        • Ps0008 663
      • Montreal, Canada
        • Ps0008 660
      • Peterborough, Canada
        • Ps0008 661
      • Toronto, Canada
        • Ps0008 662
      • Toronto, Canada
        • Ps0008 664
      • Waterloo, Canada
        • Ps0008 657
      • Windsor, Canada
        • Ps0008 669
      • Windsor, Canada
        • Ps0008 670
      • Winnipeg, Canada
        • Ps0008 674
      • Berlin, Germany
        • Ps0008 207
      • Bonn, Germany
        • Ps0008 218
      • Dresden, Germany
        • Ps0008 203
      • Hamburg, Germany
        • Ps0008 211
      • Hamburg, Germany
        • Ps0008 220
      • Lübeck, Germany
        • Ps0008 215
      • Mahlow, Germany
        • Ps0008 213
      • Osnabrück, Germany
        • Ps0008 205
      • Schweinfurt, Germany
        • Ps0008 217
      • Budapest, Hungary
        • Ps0008 252
      • Budapest, Hungary
        • Ps0008 254
      • Budapest, Hungary
        • Ps0008 255
      • Debrecen, Hungary
        • Ps0008 256
      • Gyula, Hungary
        • Ps0008 251
      • Szeged, Hungary
        • Ps0008 260
      • Bialystok, Poland
        • Ps0008 355
      • Bialystok, Poland
        • Ps0008 362
      • Bydgoszcz, Poland
        • Ps0008 371
      • Gdansk, Poland
        • Ps0008 352
      • Katowice, Poland
        • Ps0008 359
      • Katowice, Poland
        • Ps0008 366
      • Krakow, Poland
        • Ps0008 363
      • Lodz, Poland
        • Ps0008 360
      • Lodz, Poland
        • Ps0008 372
      • Lublin, Poland
        • Ps0008 356
      • Nowa Sól, Poland
        • Ps0008 364
      • Szczecin, Poland
        • Ps0008 353
      • Warsaw, Poland
        • Ps0008 354
      • Wroclaw, Poland
        • Ps0008 365
      • Wroclaw, Poland
        • Ps0008 367
      • Wroclaw, Poland
        • Ps0008 373
      • Saint Petersburg, Russia
        • Ps0008 405
      • Saratov, Russia
        • Ps0008 401
      • Yaroslavl, Russia
        • Ps0008 406
      • Gwangju, South Korea
        • Ps0008 702
      • Seoul, South Korea
        • Ps0008 700
      • Taipei, Taiwan
        • Ps0008 754
      • Taipei, Taiwan
        • Ps0008 755
    • Arizona
      • Glendale, Arizona, United States, 85308
        • Ps0008 957
    • California
      • Los Angeles, California, United States, 90033
        • Ps0008 927
      • San Diego, California, United States, 92123
        • Ps0008 955
      • San Luis Obispo, California, United States, 93405
        • Ps0008 943
      • Santa Monica, California, United States, 90404
        • Ps0008 967
    • Connecticut
      • Danbury, Connecticut, United States, 06810
        • Ps0008 939
    • District of Columbia
      • Washington D.C., District of Columbia, United States, 20037
        • Ps0008 934
    • Florida
      • Boca Raton, Florida, United States, 33486
        • Ps0008 906
      • Tampa, Florida, United States, 33624
        • Ps0008 936
    • Iowa
      • West Des Moines, Iowa, United States, 50265
        • Ps0008 900
    • Kansas
      • Overland Park, Kansas, United States, 66215
        • Ps0008 905
    • Massachusetts
      • Beverly, Massachusetts, United States, 01844
        • Ps0008 940
      • Brighton, Massachusetts, United States, 02135
        • Ps0008 925
    • Michigan
      • Troy, Michigan, United States, 48084
        • Ps0008 917
    • New Jersey
      • East Windsor, New Jersey, United States, 08520
        • Ps0008 908
    • North Carolina
      • Rocky Mount, North Carolina, United States, 27804
        • Ps0008 961
      • Winston-Salem, North Carolina, United States, 27104-35 20
        • Ps0008 935
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73112
        • Ps0008 932
    • Oregon
      • Portland, Oregon, United States, 97223
        • Ps0008 929
    • South Carolina
      • Greer, South Carolina, United States, 29650
        • Ps0008 945
    • Texas
      • Dallas, Texas, United States, 75231
        • Ps0008 931
      • Houston, Texas, United States, 77004
        • Ps0008 924
      • Houston, Texas, United States, 77004
        • Ps0008 951

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Must be at least 18 years of age
  • Chronic plaque PSO for at least 6 months prior to the Screening Visit
  • 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 is a candidate for systemic PSO therapy and/or phototherapy
  • Female subject of child bearing potential must be willing to use highly effective method of contraception

Exclusion Criteria:

  • Subject has a known hypersensitivity to any excipients of bimekizumab or adalimumab
  • Subject has an active infection (except common cold), a serious infection, or a history of opportunistic or recurrent 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
  • Subject has had previous exposure to adalimumab
  • Presence of active suicidal ideation or positive suicide behavior
  • Presence of moderately severe major depression or severe major 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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Bimekizumab Arm 1
Subjects will receive bimekizumab dose regimen 1 for 56 weeks. Subjects will receive placebo at pre-specified time-points to maintain the blinding.
Subjects will receive bimekizumab at pre-defined timepoints in dose regimen 1 and/or dose regimen 2.
Other Names:
  • UCB4940
Subjects will receive Placebo at pre-specified time points to maintain the blinding of the Investigational Medicinal Products (IMP).
Other Names:
  • PBO
Experimental: Bimekizumab Arm 2
Subjects will receive bimekizumab dose regimen 1 for 16 weeks and will proceed with bimekizumab dose regimen 2 until week 56. Subjects will receive placebo at pre-specified time-points to maintain the blinding.
Subjects will receive bimekizumab at pre-defined timepoints in dose regimen 1 and/or dose regimen 2.
Other Names:
  • UCB4940
Subjects will receive Placebo at pre-specified time points to maintain the blinding of the Investigational Medicinal Products (IMP).
Other Names:
  • PBO
Active Comparator: Adalimumab Arm
Subjects will receive adalimumab for 24 weeks and will then receive bimekizumab dose regimen 1 until week 56. Subjects will receive placebo at pre-specified time-points to maintain the blinding.
Adalimumab will be administered according to the labeling recommendations.
Other Names:
  • Humira®
Subjects will receive bimekizumab at pre-defined timepoints in dose regimen 1 and/or dose regimen 2.
Other Names:
  • UCB4940
Subjects will receive Placebo at pre-specified time points to maintain the blinding of the Investigational Medicinal Products (IMP).
Other Names:
  • PBO

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants With a Psoriasis Area and Severity Index 90 (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 a 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 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.
Week 16
Percentage of Participants With an Investigator's Global Assessment (IGA) Response (Clear or Almost Clear With at Least 2-Category Improvement Relative to Baseline) 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.
Week 16

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants With a PASI90 Response at Week 24
Time Frame: Week 24
The PASI90 response assessments are based on at least 90% improvement in the 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 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 the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.
Week 24
Percentage of Participants With an IGA Response (Clear or Almost Clear With at Least 2-category Improvement Relative to Baseline) at Week 24
Time Frame: Week 24
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] with at least a two-category improvement from Baseline at Week 24.
Week 24
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 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.
Week 4
Percentage of Participants With a PASI100 Response at Week 16
Time Frame: Week 16
The PASI100 response assessments are based on a 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.
Week 16
Percentage of Participants With a PASI100 Response at Week 24
Time Frame: Week 24
The PASI100 response assessments are based on a 100% improvement in the 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 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 the respective section. The minimum possible PASI score is 0= no disease, the maximum score is 72= maximal disease.
Week 24
Percentage of Participants With a PASI90 Response at Week 56
Time Frame: Week 56
PASI90 response assessments are based on at least 90% improvement in the 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/scaling for each of the 4 body areas with a score of 0 (clear)-4 (very marked). Determining the percentage of skin covered with PSO for each of the body areas and converting to a 0-6 scale. Final PASI=average redness/thickness/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 min possible PASI score is 0=no disease, max score is 72=maximal disease.
Week 56
Percentage of Participants With an IGA Response (Clear or Almost Clear With at Least 2-category Improvement Relative to Baseline) at Week 56
Time Frame: Week 56
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]/almost clear [1] with at least a 2-category improvement from Baseline at Wk56.
Week 56
Number of Treatment-emergent Adverse Events (TEAEs) Adjusted by Duration of Participant Exposure to Study Treatment From Baseline to Week 24
Time Frame: From Baseline to Week 24
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.
From Baseline to Week 24
Number of Serious Adverse Events (SAEs) Adjusted by Duration of Participant Exposure to Study Treatment From Baseline to Week 24
Time Frame: From Baseline to Week 24
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.
From Baseline to Week 24
Number of Treatment-emergent Adverse Events (TEAEs) Leading to Withdrawal Adjusted by Duration of Participant Exposure to Study Treatment From Baseline to Week 24
Time Frame: From Baseline to Week 24
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.
From Baseline to Week 24
Number of Treatment-emergent Adverse Events (TEAEs) Adjusted by Duration of Participant Exposure to Study Treatment From Baseline to Safety Follow-Up Visit (up to Week 72)
Time Frame: From Baseline to Safety Follow-Up Visit (up to Week 72)
The number of TEAEs 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.
From Baseline to Safety Follow-Up Visit (up to Week 72)
Number of Serious Adverse Events (SAEs) Adjusted by Duration of Participant Exposure to Study Treatment From Baseline to Safety Follow-Up Visit (up to Week 72)
Time Frame: From Baseline to Safety Follow-Up Visit (up to Week 72)
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.
From Baseline to Safety Follow-Up Visit (up to Week 72)
Number of Treatment-emergent Adverse Events (TEAEs) Leading to Withdrawal Adjusted by Duration of Participant Exposure to Study Treatment From Baseline to Safety Follow-Up Visit (up to Week 72)
Time Frame: From Baseline to Safety Follow-Up Visit (up to Week 72)
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.
From Baseline to Safety Follow-Up Visit (up to Week 72)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: UCB Cares, +1 844 599 2273 (UCB)

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

January 26, 2018

Primary Completion (Actual)

February 7, 2019

Study Completion (Actual)

February 26, 2020

Study Registration Dates

First Submitted

January 22, 2018

First Submitted That Met QC Criteria

January 25, 2018

First Posted (Actual)

January 26, 2018

Study Record Updates

Last Update Posted (Actual)

April 15, 2026

Last Update Submitted That Met QC Criteria

April 2, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Data from this trial may be requested by qualified researchers six months after product approval in the US and/or Europe, or global development is discontinued, and 18 months after trial completion. Investigators may request access to anonymized individual patient-level data and redacted trial documents which may include: analysis-ready datasets, study protocol, annotated case report form, statistical analysis plan, dataset specifications, and clinical study report. Prior to use of the data, proposals need to be approved by an independent review panel at www.Vivli.org and a signed data sharing agreement will need to be executed. All documents are available in English only, for a prespecified time, typically 12 months, on a password protected portal. This plan may change if the risk of re-identifying trial participants is determined to be too high after the trial is completed; in this case and to protect participants, individual patient-level data would not be made available.

IPD Sharing Time Frame

Data from this trial may be requested by qualified researchers six months after product approval in the US and/or Europe or global development is discontinued, and 18 months after trial completion.

IPD Sharing Access Criteria

Qualified researchers may request access to anonymized IPD and redacted study documents which may include: raw datasets, analysis-ready datasets, study protocol, blank case report form, annotated case report form, statistical analysis plan, dataset specifications, and clinical study report. Prior to use of the data, proposals need to be approved by an independent review panel at www.Vivli.org and a signed data sharing agreement will need to be executed. All documents are available in English only, for a pre-specified time, typically 12 months, on a password protected portal.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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