A Phase 3 interventional study of Oleogel-S10 in Epidermolysis Bullosa, Junctional Epidermolysis Bullosa and Epidermolysis Bullosa, Dystrophic, sponsored by Chiesi Farmaceutici S.p.A.. Recruiting at 6 sites in Japan. Open to participants aged 21 Days and older. Per ClinicalTrials.gov, last updated 2025-12-22.
Sponsored by Chiesi Farmaceutici S.p.A. · Phase 3, Interventional, and Treatment
The goal of this clinical trial is to learn if Oleogel-S10 gel works to treat skin wounds from two types of inherited epidermolysis bullosa (EB): junctional EB (JEB) or dystrophic EB (DEB) in the Japanese population. Children and adults may participate. The trial also looks at the safety of Oleogel-S10 gel. The main questions it will answer are:
The study has 2 parts. In Part 1, participants will:
78 studies on the registry are indexed under Epidermolysis Bullosa Dystrophica; 21 are open to participants now.
This study's planned enrollment of 6 is below the median of 9 across 55 interventional studies indexed under Epidermolysis Bullosa Dystrophica.
Browse Epidermolysis Bullosa Dystrophica studies →Chiesi Farmaceutici S.p.A. is the lead sponsor of 185 studies on the registry; 22 are open to participants now.
Of its 18 completed or terminated interventional studies of FDA-regulated products, 11 (61%) have results posted.
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 →
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.
At least 3 EB wounds that meet the following criteria at the time of enrollment:
A female subject must meet one of the following criteria:
If of , she must:
Agree to use one of the following highly reliable methods of from the day of the signature until the day after the last Oleogel- S10 application. The following methods are acceptable:
Be of non-childbearing potential, defined as one of the following:
Exclusion Criteria:
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.
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.
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.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
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.
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Postmenopausal
Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Excipients
The other ingredients in a medicine besides the active drug, such as fillers, colours or preservatives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Investigational drug or device
A drug or device being studied in a clinical trial.
It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Drug: Oleogel-S10
Drug pages: Episalvan · Birch triterpenes
Topical gel
To evaluate the efficacy of Oleogel-S10 in Part I
The number and percentage of closed wounds within Part I (up to Day 45).
Time frame: Enrollment to 45 days
To continue to evaluate the efficacy of Oleogel-S10 up to Day 90 in Part II
Evaluations will include the proportion of participants achieving complete wound closure of at least one target wound, the change in surface area of the wound, patient and clinician impression of improvement, frequency of dressing changes, and incidence of wound infections.
Time frame: Enrollment to 90 days
To evaluate the safety and tolerability of Oleogel-S10 in Part I and Part II
Safety will be assessed through monitoring of adverse events, physical examinations, clinical laboratory tests (blood and urine samples), and vital signs from baseline up to study completion.
Time frame: Enrollment through study completion, which is estimated for 2029
To evaluate the extent of systemic exposure to betulin
The concentration of betulin in blood at baseline and on Day 45.
Time frame: Enrollment to 45 days
Plan to share: Yes
No publications or documents are linked to this record.
Started Apr 2025 (actual). Primary completion is estimated for Mar 2026, 11 months after the start.
How these figures are worked out, and which studies are left out of them.
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Studies of the drugs tested here: Episalvan · Birch triterpenes
Epidermolysis Bullosa Dystrophica →