Allogeneic ABCB5-positive Dermal Mesenchymal Stromal Cells for Treatment of Epidermolysis Bullosa (Phase III, Cross-over)

NCT ID: NCT05464381

Last Updated: 2025-12-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE3

Total Enrollment

91 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-06-13

Study Completion Date

2027-01-31

Brief Summary

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The aim of this clinical trial is to investigate the safety and efficacy of allo-APZ2-OTS administered intravenously to subjects with recessive dystrophic epidermolysis bullosa (RDEB) compared to placebo. An additional baseline-controlled open-label arm will be included to investigate the safety and efficacy of allo-APZ2-OTS administered intravenously to subjects with JEB and to RDEB subjects \< 1 year.

Detailed Description

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Conditions

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Epidermolysis Bullosa

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Verum

Group Type EXPERIMENTAL

allo-APZ2-OTS

Intervention Type DRUG

Allogeneic dermal ABCB5-positive Mesenchymal Stromal Cells (ABCB5+ MSCs)

Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Placebo

Interventions

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allo-APZ2-OTS

Allogeneic dermal ABCB5-positive Mesenchymal Stromal Cells (ABCB5+ MSCs)

Intervention Type DRUG

Placebo

Placebo

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Male or female subjects with a diagnosis of RDEB or JEB confirmed by genetic testing or by a skin biopsy with immunofluorescence mapping (IFM). A minimal body weight of at least 5 kg is required;
2. Subject is eligible to participate in this clinical trial based on general health condition;
3. Subject with a target wound meeting the following criteria: 5-50 cm2, and \< 9 months, no signs of acute infection;
4. Patient/legal representative understands the nature of the procedure and provide written informed consent/assent prior to any clinical trial procedure;
5. Women of childbearing potential must have a negative urine pregnancy test at Visit 1. Women of childbearing potential, male participants, and their partner must be willing to use highly effective contraceptive methods during the course of the entire clinical trial.

Exclusion Criteria

1. Signs and/or a history of skin precancerous and cancerous lesions at screening or any current tumor diseases, including squamous cell carcinoma and basal cell carcinoma;
2. Known chronic lung disease;
3. Clinically significant laboratory values for coagulation and thrombocytes at screening;
4. Thromboembolic events of any grade in medical history;
5. Immunoreactions of any grade in medical history;
6. Any known allergies to components of the IP or premedication;
7. Patient/legal representative anticipated to be unwilling or unable to comply with the requirements of the protocol;
8. Pregnant or lactating women;
9. Current or previous (within 30 days of screening) treatment with another IP, or participation and/or under follow-up in another interventional clinical trial;
10. Previous participation in this clinical trial (except for screening failures);
11. Clinically significant or unstable concurrent disease or other clinical contraindications like an uncontrolled or poorly controlled mental health condition of the subject and/or his/her legal representative that could impact on patient's safety or interfere with study compliance such as inability to attend scheduled study visits;
12. Employees of the sponsor, or employees or relatives of the investigator.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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RHEACELL GmbH & Co. KG

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Sanatorio Mater Dei

Buenos Aires, , Argentina

Site Status

EB-Haus Austria; Salzburger Landeskliniken (SALK)

Salzburg, , Austria

Site Status

Fundacion Debra Chile

Santiago, , Chile

Site Status

Universitaetsklinik fuer Dermatologie und Allergologie

Nice, , France

Site Status

Hospital Necker-Enfants Malades

Paris, , France

Site Status

Service de Dermatologie Hospital Saint-Louis

Paris, , France

Site Status

Andreas Syggros Hospital of Cutaneous Venereal Diseases

Athens, , Greece

Site Status

Venereal & Skin Diseases Hospital of Thessaloniki

Thessaloniki, , Greece

Site Status

Semmelweis Egyetem

Budapest, , Hungary

Site Status

UOSD Pediatria-Alta Intensita di CurĂ , Ospedale Maggiore

Milan, , Italy

Site Status

Ospedale Pediatrico Bambin Gesu

Roma, , Italy

Site Status

Medical Concierge Centrum Medyczne

Warsaw, , Poland

Site Status

Centro Hospitalar e Universitario de Comibra HUC

Coimbra, , Portugal

Site Status

Hospital La Paz

Madrid, , Spain

Site Status

Department of Dermatology, National Cheng Kung University

Tainan, , Taiwan

Site Status

Great Ormond Street Hospital (GOSH)

London, , United Kingdom

Site Status

Countries

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Argentina Austria Chile France Greece Hungary Italy Poland Portugal Spain Taiwan United Kingdom

Other Identifiers

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allo-APZ2-EB-III

Identifier Type: -

Identifier Source: org_study_id

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