ClinicalTrials.gg
CompletedNCT04227106Updated Dec 5, 2022

Phase 3, Open-label Clinical Trial of EB-101 for the Treatment of Recessive Dystrophic Epidermolysis Bullosa (RDEB)

A Phase 3 interventional study of EB-101 in Epidermolysis Bullosa and Recessive Dystrophic Epidermolysis Bullosa, sponsored by Abeona Therapeutics, Inc. Completed at 2 sites in United States. Open to participants aged 6 Years and older. Per ClinicalTrials.gov, last updated 2022-12-05.

Primary conditionEpidermolysis Bullosa DystrophicaRegistry: Epidermolysis BullosaReclassifiedWhy we changed it
Registry
Epidermolysis Bullosa — the first condition term the registry derived for this study.
ClinicalTrials.gg
Epidermolysis Bullosa Dystrophica
Why
  1. The study's listed conditions name Epidermolysis Bullosa Dystrophica, a narrower term within Epidermolysis Bullosa.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Abeona Therapeutics, Inc · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Oct 2022, 4 years ago, and no results have been posted to the registry.
Phase
Phase 3
Study type
Interventional
Enrollment
11
Allocation
Not applicable
Ages
6 Years and older
Sex
All
01

Study summary

The purpose of this trial is to evaluate safety and efficacy of surgical application of EB-101 (autologous, gene-corrected keratinocyte sheets) as a treatment of recessive dystrophic epidermolysis bullosa (RDEB).

Read the detailed description

Recessive dystrophic epidermolysis bullosa (RDEB) is an ultra-rare, severe inherited blistering skin disease caused by the absence of a protein known as type 7 collagen (C7). There is no approved treatment for RDEB. Only supportive care is currently possible.

This open-label, controlled study will evaluate the efficacy and safety of EB-101 for the treatment of large, chronic, RDEB wounds. The study intervention consists of one-time surgical application of gene-corrected keratinocyte sheets (EB-101) for the treatment of RDEB wound sites in up to approximately 10-15 participants. A single EB-101 sheet is able to provide healing to a wound area up to approximately 40cm2. Up to 6 (six) EB-101 sheets may be applied to each patient, depending on the area of existing wounds. The co-primary endpoints of the study are: 1) the proportion of RDEB wound sites with greater than or equal to 50% healing from baseline, comparing treated with untreated wound sites at Week 24 (Month 6) as determined by direct investigator assessment; and 2) pain reduction associated with wound dressing change assessed by the mean differences in scores of the Wong-Baker FACES scale between treated and untreated wounds at Week 24 (Month 6). Patient-reported outcomes and safety will also be collected throughout the study.

The primary analysis for efficacy will be assessed when all patients reach Week 24. Safety and efficacy assessments will be conducted at regular intervals and completed when last patient reaches Week 26 post-treatment.

Upon completion of the study period, patients will be monitored annually as per standard of care for up to 15 years.

02

Conditions studied

  • Epidermolysis Bullosa
  • Recessive Dystrophic Epidermolysis Bullosa

Browse trials for

Keywords

  • chronic wounds
03

In context

Epidermolysis Bullosa Dystrophica Reclassified

78 studies on the registry are indexed under Epidermolysis Bullosa Dystrophica; 21 are open to participants now.

This study's enrollment of 11 is above the median of 9 across 55 interventional studies indexed under Epidermolysis Bullosa Dystrophica.

Browse Epidermolysis Bullosa Dystrophica studies →

Lead sponsor

Abeona Therapeutics, Inc is the lead sponsor of 11 studies on the registry; 3 are open to participants now.

Compared within Epidermolysis Bullosa Dystrophica, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Epidermolysis Bullosa. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
6 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Clinical diagnosis of RDEB;
  • Age 6 years or older, willing and able to give consent/assent;
  • If under the age of 18, guardian(s) is/are willing and able to give consent;
  • Positive expression of the non-collagenous region 1 of the type 7 collagen protein (NC1+) in the skin;
  • Two confirmed RDEB C7 mutations with recessive inheritance patterns (or confirmation that parents don't have any evidence of dominant disease);
  • At least 40 cm2 areas of chronically wounded area on the trunk and/or extremities suitable for EB-101 application (open erosions);
  • Able to undergo adequate anesthesia during EB-101 application;
  • Must have at least two matched, eligible wound sites (one pair);

    • Wound sites must:

      • Have an area ≥20 cm2,
      • Present for ≥6 months, and
      • Stage 2 wound;
  • Women of must use a reliable method throughout the duration of the study and for 6 months post treatment;
  • Negative pregnancy test;
  • Must be on stable pain medication regimen at least 30 days prior to Screening

Exclusion criteria

Exclusion Criteria:

  • Medical instability limiting ability to travel to the study site;
  • The presence of medical illness expected to complicate participation and/or compromise the safety of this technique, such as active infection with (HIV), or ;
  • Evidence of immune response to C7 by indirect immunofluorescence (IIF);
  • Evidence of systemic infection;
  • Current evidence or a history of squamous cell carcinoma (SCC) in the area that will undergo EB-101 application;
  • Active drug or alcohol addiction;
  • to vancomycin or amikacin;
  • Receipt of chemical or biological study product for the specific treatment of RDEB in the past 3 months;
  • Positive pregnancy test or breast-feeding;
  • medical or laboratory abnormalities as determined by the Principal Investigator;
  • Inability to properly follow protocol and protect keratinocyte sheet sites, as determined by the Principal Investigator;
  • Grade 3 clinical event or laboratory abnormality at Day 0. Abnormalities such as esophageal strictures, anemia, low albumin, and pain/itch are expected in RDEB patients. These abnormalities will not exclude a participant; and
  • Inability to culture participant's keratinocytes.
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
11 participants (actual)

Study arms

  • Experimental
    EB-101

    One-time surgical application of EB-101 on up to 6 chronic, RDEB wounds

    Biological: EB-101

Interventions

  • BiologicalEB-101

    autologous RDEB keratinocytes isolated from skin biopsies and transduced with a recombinant retrovirus containing a full-length COL7A1 expression cassette for C7

    Also known as: LZRSE-Col7A1 Engineered Autologous Epidermal Sheets [LEAES]

06

What researchers measure

Primary outcomes

  1. Wound Healing

    Proportion of RDEB wound sites with ≥50% healing from Baseline in treated versus untreated wounds

    Time frame: 24 weeks post-treatment

  2. Pain Reduction

    Associated with wound dressing change assessed by the mean differences in scores of the Wong-Baker FACES scale between treated and untreated wounds

    Time frame: 24 weeks post-treatment

07

Study locations

2 sites
  • Stanford University
    Redwood City, California 94063, United States
  • University of Massachusetts Medical School
    Worcester, Massachusetts 01605, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2020 to primary completion in Oct 2022, 33 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 10, 2020
First posted
Jan 13, 2020
StartActual
Jan 10, 2020
Primary completionActual
Oct 18, 2022
CompletionActual
Oct 18, 2022
Last update
Dec 5, 2022
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 5, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04227106
Lead sponsor
Abeona Therapeutics, Inc
Responsible party
Sponsor
First posted
Jan 13, 2020
Start date
Jan 10, 2020
Primary completion
Oct 18, 2022
Completion
Oct 18, 2022
Last update
Dec 5, 2022

Study contacts

Jean Tang, MD
principal investigator · Stanford University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion