A Study to Evaluate the Efficacy and Safety of Dupilumab in Adult Patients With Bullous Pemphigoid
LIBERTY-BP
A Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel Group Study to Evaluate the Efficacy and Safety of Dupilumab in Adult Patients With Bullous Pemphigoid
3 other identifiers
interventional
106
9 countries
53
Brief Summary
The main purpose of this study is to investigate whether dupilumab is effective and safe for the treatment of bullous pemphigoid. Dupilumab is a type of drug called a "monoclonal antibody". An antibody is a special kind of protein that the immune (defense) system normally makes to fight bacteria and viruses. Bullous pemphigoid is an autoimmune subepidermal blistering disease, predominately affecting the elderly (typical onset after age 60). The study is looking at several other research questions, including:
- Side effects that may be experienced by people taking dupilumab
- How dupilumab works in the body and affects the body
- How dupilumab affects quality of life
- How much dupilumab is present in the blood
- To see if dupilumab works to wean the patient off oral corticosteroids
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_2
Started Oct 2020
Typical duration for phase_2
53 active sites
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
First Submitted
Initial submission to the registry
December 18, 2019
CompletedFirst Posted
Study publicly available on registry
December 20, 2019
CompletedStudy Start
First participant enrolled
October 28, 2020
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 12, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
January 5, 2025
CompletedResults Posted
Study results publicly available
March 6, 2026
CompletedMarch 6, 2026
February 1, 2026
3.7 years
December 18, 2019
January 2, 2026
February 13, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Percent of Participants Achieving Sustained Remission at Week 36
Sustained remission at week 36, defined as: (1) Complete remission (absence of new lesions \& epithelialization of old lesions) \& off oral corticosteroids (OCS) no later than week 16 \& (2) Absence of disease relapse (appearance of ≥3 new lesions a month \[blisters, eczematous lesions, or urticarial plaques\] or at least 1 large eczematous lesion or urticarial plaque that does not heal within 1 week) after completion of OCS taper, no later than week 16, to week 36 \& (3) Absence of need for rescue therapy during 36 weeks (rescue therapy includes increase of OCS dose during the taper, re-initiation of OCS after completion of the OCS taper, or initiation of any BP-directed therapy). Participants with missing sustained remission data at week 36 due to discontinuation due to lack of efficacy, treatment-related AE, or death were considered non-responders \& those with missing data due to other reasons were handled using multiple imputation.
At Week 36
Secondary Outcomes (47)
Total Cumulative Dose of Oral Corticosteroids (OCS) From Baseline to Week 36
Week 36
Percent Change in Weekly Average of Daily Peak Pruritus Numerical Rating Scale (NRS) Score From Baseline to Week 36
Baseline, Week 36
Percent of Participants With Improvement (Reduction) of Weekly Average of Daily Peak Pruritus NRS ≥4 From Baseline to Week 36
Baseline, Week 36
Percent Change in Bullous Pemphigoid Disease Area Index (BPDAI) Activity Score From Baseline to Week 36
Baseline, Week 36
Time to First Use of Rescue Medication Up to Week 36
Up to Week 36
- +42 more secondary outcomes
Other Outcomes (1)
Supplemental Analysis of Total Cumulative Dose of OCS From Baseline to Week 36
Week 36
Study Arms (2)
dupilumab
EXPERIMENTALMatching placebo
EXPERIMENTALInterventions
Loading dose administered subcutaneous (SC), followed by SC once every 2 weeks (Q2W) dosing.
Prednisone or prednisolone per standard of care to obtain control of disease activity.
Eligibility Criteria
You may qualify if:
- Patients must have characteristic clinical features of bullous pemphigoid (BP) (eg, urticarial or eczematous or erythematous plaques, bullae, pruritus) at the screening and baseline visits.
- Study participants are required to have a confirmed diagnosis of BP based on histopathology, immunopathology, and serology at the baseline visit, as defined in the protocol.
- Bullous Pemphigoid Disease Area Index (BPDAI) activity score ≥24 at baseline and screening visits.
- Baseline peak pruritus NRS score for maximum itch intensity ≥4
- Karnofsky performance status score ≥50% at the screening visit.
You may not qualify if:
- Forms of pemphigoid other than classic BP (eg, Brunsting-Perry cicatricial pemphigoid, anti-p200 pemphigoid, epidermolysis bullosa acquisita, or BP with concomitant pemphigus vulgaris)
- Patients who are receiving treatments known to cause or exacerbate BP (eg, angiotensin converting enzyme inhibitors, penicillamine, furosemide, phenacetin, dipeptidyl peptidase 4 inhibitor) who have not been on a stable dose of these medications for at least 4 weeks prior to the screening visit
- Have ever received treatment with an IL-4 or IL-13 antagonist such as dupilumab, tralokinumab, or lebrikizumab.
- Treatment with systemic corticosteroids within 7 days before the baseline visit
- Treatment with topical corticosteroids of medium potency or higher, topical calcineurin inhibitor, or topical crisaborole within 7 days before the baseline visit
- Treatment with non-steroidal immunosuppressive/immunomodulating drug(s) (eg, mycophenolate mofetil, azathioprine, or methotrexate) within 4 weeks before the baseline visit.
- Treatment with BP-directed biologics as follows:
- Any cell-depleting agents including but not limited to rituximab: within 12 months before the baseline visit, or until lymphocyte and CD 19+ lymphocyte count returns to normal, whichever is longer
- Other biologics (such as IL-5 inhibitors benralizumab or mepolizumab): within 5 half-lives (if known) or 16 weeks prior to the baseline visit, whichever is longer
- Intravenous immunoglobulin within 16 weeks prior to the baseline visit
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Regeneron Pharmaceuticalslead
- Sanoficollaborator
Study Sites (53)
Regeneron study Site
Birmingham, Alabama, 35233, United States
Regeneron Study Site
Scottsdale, Arizona, 85259, United States
Regeneron Study Site
Redwood City, California, 94063, United States
Regeneron Study Site
Farmington, Connecticut, 06030, United States
Regeneron Study Site
Miami, Florida, 33125, United States
Regeneron study Site
Orlando, Florida, 32827, United States
Regeneron Study Site
Iowa City, Iowa, 52242, United States
Regeneron Study Site
Boston, Massachusetts, 02116, United States
Regeneron study Site
Ann Arbor, Michigan, 48109-5314, United States
Regeneron Study Site
Chapel Hill, North Carolina, 27516, United States
Regeneron Study Site
Portland, Oregon, 97239, United States
Regeneron Study Site
Philadelphia, Pennsylvania, 19104, United States
Regeneron study Site
Providence, Rhode Island, 02908, United States
Regeneron Study Site
Murray, Utah, 84107, United States
Regeneron study Site
Charlottesville, Virginia, 22903, United States
Regeneron Study Site
Kogarah, New South Wales, 2217, Australia
Regeneron Study Site
Box Hill, Victoria, 3128, Australia
Regeneron Study Site
Bobigny, 93009, France
Regeneron Study Site
Bordeaux, 33000, France
Regeneron Study Site
Lille, 59037, France
Regeneron Study Site
Nice, 06200, France
Regeneron Study Site
Paris, 75010, France
Regeneron Study Site
Rouen, 76031, France
Regeneron Study Site
Münster, North Rhine-Westphal, 48149, Germany
Regeneron Study Site
Mainz, Rhineland-Palatinate, 55131, Germany
Regeneron Study Site 2
Dresden, Saxony, 01307, Germany
Regeneron Study Site
Lübeck, Schleswig-Holstein, 23538, Germany
Regeneron Study Site
Berlin, 10117, Germany
Regeneron Study Site
Buxtehude, 21614, Germany
Regeneron Study Site
Erlangen, 91054, Germany
Regeneron Study Site
Freiburg im Breisgau, 79104, Germany
Regeneron Study site'
Magdeburg, 39120, Germany
Regeneron Study site
Marburg, 35043, Germany
Regeneron Study Site
Munich, 80802, Germany
Regeneron Study Site
Stuttgart, 70178, Germany
Regeneron study Site
Afula, 1834111, Israel
Regeneron study Site
Petah Tikva, 49100, Israel
Regeneron study Site
Tel Aviv, 6423906, Israel
Regeneron Study site
Kurume, Hukuoka, 830-0011, Japan
Regeneron Study Site
Hirosaki, 036-8563, Japan
Regeneron Study Site
Ichinomiya, 491-8558, Japan
Regeneron Study Site
Osaka, 545-8586, Japan
Regeneron Study Site
Sapporo, 060-8648, Japan
Regeneron Study Site
Tokyo, 160-8582, Japan
Regeneron Study Site
Krakow, Lesser Poland Voivodeship, 31-147, Poland
Regeneron Study site'
Ossy, 42-624, Poland
Regeneron Study site'
Wroclaw, 50566, Poland
Regeneron Study Site
Badalona, Barcelona, 08916, Spain
Regeneron Study Site
Madrid, 28034, Spain
Regeneron study Site
Madrid, 28046, Spain
Regeneron study Site
Pamplona, 31008, Spain
Regeneron study Site
Taipei, Zhongzheng District, 10002, Taiwan
Regeneron study Site
Taoyuan, 33305, Taiwan
Related Publications (1)
Murrell DF, Joly P, Werth VP, Ujiie H, Worm M, Mangold AR, Avetisova E, Maloney J, Laws E, Mortensen E, Dubost-Brama A, Shabbir A. Study Design of a Phase 2/3 Randomized Controlled Trial of Dupilumab in Adults with Bullous Pemphigoid: LIBERTY-BP ADEPT. Adv Ther. 2024 Jul;41(7):2991-3002. doi: 10.1007/s12325-024-02810-3. Epub 2024 Mar 5.
PMID: 38443648DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Clinical Trials Administrator
- Organization
- Regeneron Pharmaceuticals, Inc.
Study Officials
- STUDY DIRECTOR
Clinical Trial Management
Regeneron Pharmaceuticals
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
December 18, 2019
First Posted
December 20, 2019
Study Start
October 28, 2020
Primary Completion
July 12, 2024
Study Completion
January 5, 2025
Last Updated
March 6, 2026
Results First Posted
March 6, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- When Regeneron has: * received marketing authorization from major health authorities (e.g., FDA, European Medicines Agency (EMA), Pharmaceuticals and Medical Devices Agency (PMDA), etc.) for the product and indication or has globally discontinued development of the product for all indications on or after April 2020 and has no plans for future development * made the study results publicly available (e.g., scientific publication, scientific conference, clinical trial registry) * the legal authority to share the data, and * ensured the ability to protect participant privacy
- Access Criteria
- Qualified researchers can submit a proposal for access to individual patient or aggregate level data from a Regeneron-sponsored clinical trial through Vivli. Regeneron's Independent Research Request Evaluation Criteria can be found at: https://www.regeneron.com/sites/default/files/Regeneron-External-Data-Sharing-Policy-and-Independent-Research-Request-Evaluation-Criteria.pdf
All individual patient data (IPD) that underlie publicly available results will be considered for sharing