Using stem cells to treat a skin condition called epidermolysis bullosa

A Double-blind, Randomized, Placebo-controlled, Interventional, Multicenter, Phase III Clinical Trial to Investigate the Safety and Efficacy of ABCB5-positive Mesenchymal Stromal Cells (ABCB5+ MSCs) on Epidermolysis Bullosa (EB)

PHASE3 · RHEACELL GmbH & Co. KG · NCT05838092

This study is testing a new stem cell treatment for people with a severe skin condition called epidermolysis bullosa to see if it can help improve their symptoms.

Quick facts

PhasePHASE3
Study typeInterventional
Enrollment74 (estimated)
Ages6 Months and up
SexAll
SponsorRHEACELL GmbH & Co. KG (industry)
Locations1 site (Minneapolis, Minnesota)
Trial IDNCT05838092 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the safety and efficacy of allo-APZ2-OTS, an allogeneic stem cell therapy, administered intravenously to patients with recessive dystrophic epidermolysis bullosa (RDEB). Participants will be compared to a placebo group to evaluate the treatment's effectiveness. Eligible candidates include individuals aged 6 months and older with confirmed RDEB and specific wound characteristics. The study aims to provide a new therapeutic option for this challenging skin condition.

Who should consider this trial

Good fit: Ideal candidates are males and females aged 6 months and older diagnosed with recessive dystrophic epidermolysis bullosa.

Not a fit: Patients with current tumor diseases or known allergies to the treatment components may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could significantly improve wound healing and quality of life for patients with epidermolysis bullosa.

How similar studies have performed: Other studies have explored stem cell therapies for skin conditions, showing promising results, but this specific approach is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Male or female subjects from 6 months of age with a diagnosis of RDEB confirmed by genetic testing or by a skin biopsy with immunofluorescence mapping
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, ≥ 21 days 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. Any current tumor diseases, including squamous cell carcinoma and basal cell carcinoma;
2. Any known allergies to components of the IP or premedication;
3. Patient/legal representative anticipated to be unwilling or unable to comply with the requirements of the protocol;
4. Pregnant or lactating women;
5. Current or previous (within 30 days of screening) treatment with another IP, or participation and/or under follow-up in another interventional clinical trial;
6. Previous participation in this clinical trial (except for screening failures);
7. 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; Confidential
8. Employees of the sponsor, or employees or relatives of the investigator.

Where this trial is running

Minneapolis, Minnesota

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Epidermolysis Bullosa

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.