- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07705217
The Role of Gut and Skin Microbiota in Alopecia Areata (RGSM-AA-ICS)
The goal of this clinical trial is to learn if fecal microbiota transplantation (FMT) works to treat alopecia areata in adults. It will also learn about the safety of FMT. The main questions it aims to answer are:
- Can FMT cause hair regrowth?
- Can FMT modulate immune response? Researchers will compare FMT to a placebo (a look-alike substance that contains no drug) to see if FMT works to treat alopecia areata.
Participants will:
- Take FMT or a placebo for three consecutive days
- Follow-up evaluations will be performed at weeks 12, 24, and 48, with repeat clinical scoring, photodocumentation, microbiome analyses, laboratory testing, and quality-of-life assessment.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
- Nom: Tea Rosovic, Dermatovenerology specialist
- Numéro de téléphone: +00385913737237
- E-mail: tearosovic@gmail.com
Lieux d'étude
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Opatija, Croatie
- Polyclinic GrandMed
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Contact:
- Tea Rosovic, Dermatovenerology specialist
- Numéro de téléphone: +00385913737237
- E-mail: tearosovic@gmail.com
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Chercheur principal:
- Tea Rosovic, Dermatovenerology specialist
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- Adults aged 18-65 diagnosed with Alopecia Areata (patchy or extensive) up to 10 years
- Willingness to adhere to study protocols, including FMT administration via capsules or colonoscopy.
- Ability to sign informed consent.
- SALT score≥ 20
Exclusion Criteria:
- History of gastrointestinal disorders (e.g., IBD, celiac disease).
- Recent use of antibiotics, probiotics, or prebiotics (within 2 months).
- Pregnant or breastfeeding women of childbearing potential who are unwilling or unable to use an acceptable method of birth control.
- Individuals with immunocompromised or immunosuppressed states (e.g., HIV, cancer).
- Prior FMT treatment for any condition.
- Therapy with new antidepressants or had a change in antidepressant dose within previous 3 months
- Serious medical comorbidities(including neurological or phychiatric comorbidities)
- Elevated C-reactive protein concentration, abnormal baseline laboratory tests
- Severe(anaphylactic) food allergy
- Concomitant treatments for AA: topical KS 1 week prior to randomization, topical JAK inhibitor, diphenylcyclopropenone, or other topical immunotherapies within 4 weeks prior to randomization;systemic corticosterids, immunosuppressant, intra-lesional or intra-articular corticosteroid injections, or oral JAK inhibitor within 8 weeks prior to randomization;monoclonal antibody <5 half-lives prior to randomization; probenecid at the time of randomization. Bimatoprost ophtalmic solution was allowed if on stable dose for 8 weeks.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
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Expérimental: FMT group
Interventional group
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Patients with alopecia areata will recieve FMT or in the 3 capsules for three consecutive days or FMT via colonoscopy
Autres noms:
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Comparateur placebo: Placebo group
This group will recieve placebo capsules or saline via colonoscopy
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Patients will recieve three capsules with inert material or saline via colonoscopy
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Changes in hair growth- Severity of Alopecia Tool
Délai: From enrollment to the end of treatment at 48 weeks
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The primary success will be a statistically significant difference in hair regrowth between the Fecal Microbiota transplantation (FMT) group and placebo group at weeks 24 and 48, assessed as a binary endpoint (regrowth yes/no) and supported by changes in SALT (Severity of Alopecia Tool) score as a standardized measurement used to quantify scalp hair loss in patients with alopecia areata.
The scale ranges from 0 (no hair loss) to 100 (complete scalp hair loss).
A clinically meaningful reduction in SALT score (≥50% improvement from baseline) will be considered a strong indicator of therapeutic efficacy.
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From enrollment to the end of treatment at 48 weeks
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Changes in hair growth- Alopecia Areata Investigator Global Assessment
Délai: From enrollment to the end of treatment at 48 weeks
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The primary success will be a statistically significant difference in hair regrowth between the Fecal Microbiota transplantation (FMT) group and placebo group at weeks 24 and 48, assessed as a binary endpoint (regrowth yes/no) and supported by changes in Alopecia Areata Investigator Global Assessment (AA-IGA) to measure five clinically meaningful gradations of alopecia areata scalp-hair loss that reflects patients' and clinicians' perspectives and expectations of treatment success in alopecia areata treatment studies.
The AA-IGA score is based on the patient's SALT score.
The scale is numbered from 0, which corresponds to 0% of hair loss (ie, SALT 0), indicating no hair loss, to 4, which corresponds to 95-100% of hair loss (ie, SALT 95-100), indicating very severe hair loss.
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From enrollment to the end of treatment at 48 weeks
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Changes in hair growth- The Alopecia Areata Scale
Délai: From enrollment to the end of treatment at 48 weeks
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The primary success will be a statistically significant difference in hair regrowth between the Fecal Microbiota transplantation (FMT) group and placebo group at weeks 24 and 48, assessed as a binary endpoint (regrowth yes/no) and supported by changes in The Alopecia Areata Scale (AASc) in wich primary criterion is Severity of scalp hair loss: mild 20% or less, moderate 21-49%, severe 50-100% scalp hair loss.
Secondary criteria: is any is present, increase severity rating by one level: noticeable involvement of eyebrows or eyelashes; inadequate response after at least 6 months of treatment; negative impact on psychosocial functioning resulting from AA; diffuse (multifocal) positive hait pull test consistent with pidly progressive alopecia areata.
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From enrollment to the end of treatment at 48 weeks
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Fecal microbiota transplantation modulation of the gut and skin microbiota
Délai: From enrollment to the end of treatment at 48 weeks
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The primary objective of this proposal is to test the hypothesis that fecal microbiota transplantation (FMT) induces beneficial modulation of the gut and skin microbiota, leading to immunoregulatory effects in patients with alopecia areata (AA).
Characterize baseline skin, and colonic mucosal microbiota composition in patients with AA using 16S rRNA sequencing of skin and colon musosa biopsy specimens and assess changes following FMT.
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From enrollment to the end of treatment at 48 weeks
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Change in T cell subsets from Baseline to 48 weeks
Délai: From enrollment to the end of treatment at 48 weeks
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Before and after Fecal microbiota transplantation patient will be taken 60-80 ml of peripheral blood for:
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From enrollment to the end of treatment at 48 weeks
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- TD25725
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
Type d'informations de prise en charge du partage d'IPD
- PROTOCOLE D'ÉTUDE
- SÈVE
- CIF
- ANALYTIC_CODE
- RSE
Informations sur les médicaments et les dispositifs, documents d'étude
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