Actively Recruiting

Phase 2
Age: 4Years +
All Genders
ID06594393

A Randomized, Double-blind, Vehicle-controlled Phase 2 Study to Evaluate Efficacy, Safety, and Tolerability of Topically Applied TCP-25 in Patients With Epidermolysis Bullosa

Led by Xinnate AB · Updated on 2026-05-20

32

Participants Needed

9

Research Sites

N/A

Total Duration

On this page

AI-Summary

What this Trial Is About

Researchers are evaluating the safety, tolerability, and effectiveness of a topical gel called TCP-25 in patients with confirmed Dystrophic Epidermolysis Bullosa (DEB) or Junctional Epidermolysis Bullosa (JEB). This Phase 2 study uses a randomized, double-blind, vehicle-controlled design where pairs of matching wounds on each patient are treated either with TCP-25 gel or a placebo gel. The study aims to better understand how this treatment works on open wounds in these conditions. Participants will go through a Screening Period followed by a 56-day Treatment Period with visits every two weeks, including baseline, Day 14, Day 28, Day 42, and Day 56. During treatment, each patient's wounds will receive either the TCP-25 gel or the placebo gel. After treatment, a Safety Follow-up will be conducted through a phone or video call about two weeks later to assess any lasting effects or concerns. Throughout the study, patients will have their wounds photographed using 3D digital imaging at each visit to measure wound size and healing. Researchers will monitor safety through adverse event reporting, physical exams, and blood pressure and pulse checks. Pain levels will be assessed using the Wong Baker FACES Pain Rating Scale. Blood samples will be collected to analyze TCP-25 levels in the plasma. The total participation time for each patient is roughly two months plus the follow-up call.

CONDITIONS

Brief Title

A Phase 2 Study of TCP-25 Gel in Patients With Epidermolysis Bullosa, STEP-study

Who Can Participate

Age: 4Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Male or female patients with documented diagnosis of Dystrophic Epidermolysis Bullosa or Junctional Epidermolysis Bullosa, confirmed by genetic testing and/or skin biopsy with immunofluorescence mapping
  • Patients 4 years old or older
  • Enrollment initially open to patients 12 years and older, expanding to ages 4 to 11 after safety review by a Data Monitoring Committee
Not Eligible

You will not qualify if you...

  • Patients with any subtype of Epidermolysis Bullosa other than Dystrophic or Junctional types
  • Patients currently treated or planning to be treated with systemic antibiotics
  • Use of topical antibiotics on index wounds within 7 days before the baseline visit
  • Use of systemic corticosteroids above 0.2 mg/kg prednisone equivalent per day within 30 days or topical corticosteroids on index wounds within 7 days before screening
  • History of or current malignancy over the index wound, such as basal cell carcinoma or squamous cell carcinoma

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

Treatment

Duration - 56 days

Participants receive topical gel treatment with TCP-25 or placebo and undergo efficacy, safety, tolerability, and pharmacokinetic assessments.

5 visits every 2 weeks, including baseline (Day 1), Day 14, Day 28, Day 42, and Day 56

Follow-up

Duration - Approximately 2 weeks

Participants have a safety follow-up conducted via telephone or video call approximately 14 days after the last dose of the investigational medicinal product.

1 telephone/video call

Trial Site Locations

Total: 9 locations

1

Hopital St Louis

Paris, France

Actively Recruiting

2

Andreas Syngros Hospital of Veneral & Dermatological Diseases

Athens, Greece

Actively Recruiting

3

Hospital Of Skin And Venereal Diseases of Thessaloniki

Thessaloniki, Greece

Actively Recruiting

4

IDI Istituto Dermopatico dell'Immacolata IRCCS

Rome, Italy

Actively Recruiting

5

San Joan de Deu, SJD Children's hospital Barcelona

Barcelona, Catalonia, Spain

Actively Recruiting

6

Hospital Clinic de Barcelona

Barcelona, Spain

Actively Recruiting

7

Hospital Univ La Paz

Madrid, Spain

Actively Recruiting

8

University hospital

Lund, Skåne County, Sweden, 23735

Not Yet Recruiting

9

Akademiska sjukhuset

Uppsala, Sweden

Actively Recruiting

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Research Team

H

Head of Clinical Development

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Published Research Related To This Trial

Study protocol for a phase 1, randomised, double-blind, placebo-controlled study to investigate the safety, tolerability and pharmacokinetics of ascending topical doses of TCP-25 applied to epidermal suction blister wounds in healthy male and female volunteers.

Sigrid Lundgren, Karl Wallblom, Jane Fisher...

https://pubmed.ncbi.nlm.nih.gov/36813496