NCT04436640

Brief Summary

The purpose of the study is to demonstrate the long-term safety, tolerability and efficacy of bimekizumab in patients with active axial spondyloarthritis (axSpA, also known as radiographic axSpa (r-axSpA)) including ankylosing spondylitis (AS) and nonradiographic axial spondyloarthritis (nr-axSpa).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
508

participants targeted

Target at P50-P75 for phase_3

Timeline
3mo left

Started Jun 2020

Longer than P75 for phase_3

Geographic Reach
14 countries

75 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress96%
Jun 2020Aug 2026

First Submitted

Initial submission to the registry

June 15, 2020

Completed
1 day until next milestone

Study Start

First participant enrolled

June 16, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

June 18, 2020

Completed
6.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 7, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 7, 2026

Last Updated

April 24, 2026

Status Verified

April 1, 2026

Enrollment Period

6.1 years

First QC Date

June 15, 2020

Last Update Submit

April 23, 2026

Conditions

Keywords

AxSpaRadiographicNon-radiographicASBimekizumabAxial spondyloarthritisAnkylosing spondylitis

Outcome Measures

Primary Outcomes (3)

  • Percentage of participants with treatment-emergent adverse events (TEAEs) during the study

    An adverse event (AE) is any untoward medical occurrence in a patient or clinical investigation subject administered a pharmaceutical product, which does not necessarily have a causal relationship with this treatment. An AE could therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product.

    From Baseline (Day 1) until Safety Follow-Up (up to Week 180)

  • Percentage of participants with serious adverse events (SAEs) during the study

    A serious adverse event (SAE) is any untoward medical occurrence that at any dose: * Results in death * Is life-threatening * Requires in patient hospitalisation or prolongation of existing hospitalisation * Is a congenital anomaly or birth defect * Is an infection that requires treatment with parenteral antibiotics * Other important medical events which based on medical or scientific judgement may jeopardise the patients, or may require medical or surgical intervention to prevent any of the above

    From Baseline (Day 1) until Safety Follow-Up (up to Week 180)

  • Percentage of participants with with treatment-emergent adverse Events (TEAEs) leading to withdrawal from the study

    Treatment-emergent adverse events (TEAEs) are any untoward medical incidence in a subject during administered study treatment, whether or not these events are related to study treatment.

    From Baseline (Day 1) until Safety Follow-Up (up to Week 180)

Secondary Outcomes (36)

  • Assessment of SpondyloArthritis International Society 40% response criteria (ASAS40) response at Week 28

    Week 28

  • Assessment of SpondyloArthritis International Society 40% response criteria (ASAS40) response at Week 52

    Week 52

  • Assessment of SpondyloArthritis International Society 40% response criteria (ASAS40) response at Week 112

    Week 112

  • Assessment of SpondyloArthritis International Society 20% response criteria (ASAS20) response at Week 28

    Week 28

  • Assessment of SpondyloArthritis International Society 20% response criteria (ASAS20) response at Week 52

    Week 52

  • +31 more secondary outcomes

Study Arms (1)

Bimekizumab

EXPERIMENTAL

Subjects will receive bimekizumab throughout the Treatment Period.

Drug: Bimekizumab

Interventions

Subjects will receive bimekizumab at prespecified time-points.

Also known as: BKZ, UCB4940
Bimekizumab

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Study participant is considered reliable and capable of adhering to the protocol (eg, able to understand and complete questionnaires), visit schedule, and medication intake according to the judgement of the Investigator
  • In the opinion of the Investigator, the study participant is expected to benefit from participation in this extension study
  • Study participant completed AS0010 (NCT03928704) or AS0011 (NCT03928743)

You may not qualify if:

  • Female study participants who plan to become pregnant during the study or within 20 weeks following final dose of Investigational Medicinal Product (IMP). Male study participants who are planning a partner pregnancy during the study or within 20 weeks following the final dose
  • Study participants who meet any withdrawal criteria in AS0010 or AS0011. For any study participant with an ongoing serious adverse event (SAE), or a history of serious infections (including hospitalizations) in the feeder study, the Medical Monitor must be consulted prior to the study participant's entry into AS0014
  • Study participant has a positive or indeterminate interferon gamma release assay (IGRA) in AS0010 or AS0011, unless appropriately evaluated and treated

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (75)

As0014 50062

Glendale, Arizona, 85306, United States

Location

As0014 50052

Phoenix, Arizona, 85032, United States

Location

As0014 50060

Upland, California, 91786, United States

Location

As0014 50059

Ormond Beach, Florida, 32174, United States

Location

As0014 50056

Sarasota, Florida, 34239, United States

Location

As0014 50015

Hagerstown, Maryland, 21740, United States

Location

As0014 50016

St Louis, Missouri, 63141, United States

Location

As0014 50055

Portland, Oregon, 97239, United States

Location

As0014 50020

Duncansville, Pennsylvania, 16635, United States

Location

As0014 50057

Dallas, Texas, 75231, United States

Location

As0014 40004

Brussels, Belgium

Location

As0014 40003

Genk, Belgium

Location

As0014 40001

Ghent, Belgium

Location

As0014 40006

Plovdiv, Bulgaria

Location

As0014 40007

Plovdiv, Bulgaria

Location

As0014 40005

Sofia, Bulgaria

Location

As0014 40008

Sofia, Bulgaria

Location

As0014 20040

Beijing, China

Location

As0014 20021

Chengdu, China

Location

As0014 20019

Guangzhou, China

Location

As0014 20034

Hefei, China

Location

As0014 20024

Nanjing, China

Location

As0014 20018

Shanghai, China

Location

As0014 20020

Shanghai, China

Location

As0014 20026

Shanghai, China

Location

As0014 20025

Wenzhou, China

Location

As0014 40011

Brno, Czechia

Location

As0014 40009

Pardubice, Czechia

Location

As0014 40013

Prague, Czechia

Location

As0014 40014

Prague, Czechia

Location

As0014 40015

Prague, Czechia

Location

As0014 40016

Prague, Czechia

Location

As0014 40010

Uherské Hradiště, Czechia

Location

As0014 40012

Zlín, Czechia

Location

As0014 40018

Boulogne-Billancourt, France

Location

As0014 40022

Limoges, France

Location

As0014 40025

Berlin, Germany

Location

As0014 40029

Hamburg, Germany

Location

As0014 40024

Hanover, Germany

Location

As0014 40027

Herne, Germany

Location

As0014 40078

Leipzig, Germany

Location

As0014 40026

Ratingen, Germany

Location

As0014 40032

Debrecen, Hungary

Location

As0014 40031

Szeged, Hungary

Location

As0014 40033

Székesfehérvár, Hungary

Location

As0014 20035

Bunkyō City, Japan

Location

As0014 20030

Chūōku, Japan

Location

As0014 20039

Iruma-gun, Japan

Location

As0014 20036

Kawachi-Nagano, Japan

Location

As0014 20045

Kita-gun, Japan

Location

As0014 20065

Kitakyushu, Japan

Location

As0014 20037

Osaka, Japan

Location

As0014 20084

Saga, Japan

Location

As0014 20048

Saitama, Japan

Location

As0014 20031

Sapporo, Japan

Location

As0014 20032

Suita, Japan

Location

As0014 40034

Amsterdam, Netherlands

Location

As0014 40038

Elblag, Poland

Location

As0014 40042

Krakow, Poland

Location

As0014 40037

Lublin, Poland

Location

As0014 40044

Poznan, Poland

Location

As0014 40040

Torun, Poland

Location

As0014 40041

Warsaw, Poland

Location

As0014 40039

Wroclaw, Poland

Location

As0014 40043

Wroclaw, Poland

Location

As0014 40045

A Coruña, Spain

Location

As0014 40046

Córdoba, Spain

Location

As0014 40048

Santiago de Compostela, Spain

Location

As0014 40049

Seville, Spain

Location

As0014 40052

Ankara, Turkey (Türkiye)

Location

As0014 40053

Ankara, Turkey (Türkiye)

Location

As0014 40050

Istanbul, Turkey (Türkiye)

Location

As0014 40057

Edinburgh, United Kingdom

Location

As0014 40056

Leeds, United Kingdom

Location

As0014 40055

Norwich, United Kingdom

Location

Related Publications (5)

  • Brown MA, Rudwaleit M, van Gaalen FA, Haroon N, Gensler LS, Fleurinck C, Marten A, Massow U, de Peyrecave N, Vaux T, White K, Deodhar A, van der Horst-Bruinsma I. Low uveitis rates in patients with axial spondyloarthritis treated with bimekizumab: pooled results from phase 2b/3 trials. Ann Rheum Dis. 2024 Nov 14;83(12):1722-1730. doi: 10.1136/ard-2024-225933.

  • Ramiro S, Poddubnyy D, Mease PJ, Lopez-Medina C, Kim M, Massow U, Taieb V, Kragstrup TW, McGonagle D. Sustained resolution of enthesitis and peripheral arthritis over 104 weeks with bimekizumab in axial spondyloarthritis. RMD Open. 2025 Oct 22;11(4):e005969. doi: 10.1136/rmdopen-2025-005969.

  • Mease PJ, Merola JF, Magrey M, Nash P, Poddubnyy D, Lebwohl M, Bajracharya R, Ink B, Marten A, Manente M, Peterson L, White K, Gensler LS. Bimekizumab longer-term safety profile in adult patients with axial spondyloarthritis or psoriatic arthritis: an updated analysis of six phase IIb/III clinical studies. RMD Open. 2026 Mar 10;12(1):e006174. doi: 10.1136/rmdopen-2025-006174.

  • Marzo-Ortega H, Navarro-Compan V, Dubreuil M, Mease PJ, Magrey M, Rudwaleit M, D'Agostino MA, Gaffney K, Kay J, de la Loge C, Massow U, Taieb V, Vaux T, Deodhar A. Sustained improvements in spinal pain, morning stiffness, fatigue, sleep, physical function and overall health-related quality of life with bimekizumab in patients with axial spondyloarthritis: 2-year results from two phase 3 studies. RMD Open. 2025 Nov 28;11(4):e006013. doi: 10.1136/rmdopen-2025-006013.

  • Mease PJ, Gensler LS, Orbai AM, Warren RB, Bajracharya R, Ink B, Marten A, Massow U, Shende V, Manente M, Peterson L, White K, Landewe R, Poddubnyy D. Long-term safety of bimekizumab in adult patients with axial spondyloarthritis or psoriatic arthritis: pooled results from integrated phase IIb/III clinical studies. RMD Open. 2025 Apr 6;11(2):e005026. doi: 10.1136/rmdopen-2024-005026.

MeSH Terms

Conditions

Axial SpondyloarthritisSpondylitis, AnkylosingNon-Radiographic Axial Spondyloarthritis

Interventions

bimekizumab

Condition Hierarchy (Ancestors)

SpondylarthropathiesSpondylarthritisSpondylitisSpinal DiseasesBone DiseasesMusculoskeletal DiseasesAnkylosisJoint DiseasesArthritis

Study Officials

  • UCB Cares

    001 844 599 2273 (UCB)

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 15, 2020

First Posted

June 18, 2020

Study Start

June 16, 2020

Primary Completion (Estimated)

August 7, 2026

Study Completion (Estimated)

August 7, 2026

Last Updated

April 24, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will share

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.

Shared Documents
STUDY PROTOCOL, SAP, CSR
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.
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.
More information

Locations