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.
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Tea Rosovic, Dermatovenerology specialist
- Numero di telefono: +00385913737237
- Email: tearosovic@gmail.com
Luoghi di studio
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Opatija, Croazia
- Polyclinic GrandMed
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Contatto:
- Tea Rosovic, Dermatovenerology specialist
- Numero di telefono: +00385913737237
- Email: tearosovic@gmail.com
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Investigatore principale:
- Tea Rosovic, Dermatovenerology specialist
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Descrizione
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.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
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Sperimentale: 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
Altri nomi:
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Comparatore 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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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Changes in hair growth- Severity of Alopecia Tool
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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
Lasso di tempo: 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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Collaboratori e investigatori
Sponsor
Sponsor
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- TD25725
Piano per i dati dei singoli partecipanti (IPD)
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Descrizione del piano IPD
Tipo di informazioni di supporto alla condivisione IPD
- STUDIO_PROTOCOLLO
- LINFA
- ICF
- CODICE_ANALITICO
- RSI
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