NCT06747611

Brief Summary

Alopecia Areata (AA) is among the most highly prevalent human autoimmune diseases, leading to disfiguring hair loss due to the collapse of immune privilege of the hair follicle and subsequent autoimmune attack. AA affects about 5.3 million people in the United States alone, including males and females across all ethnic groups, with a lifetime risk of 2.1%. Autoimmunity develops against the hair follicle, resulting in non-scarring hair loss that may begin as patches that can coalesce and progress to cover the entire scalp (alopecia totalis) or eventually the entire body (alopecia universalis). In AA, there is no permanent destruction of the hair follicle, and regrowth remains possible. Treatment options for AA include intralesional steroids, topical anthralin, allergic contact dermatitis with diphencyprone (DPCP), dinitrochlorobenzene (DNCB), or squaric acid dibutyl ester (SADBE), and recently janus kinase ( JAK) inhibitors. Despite the recent approval of JAKs for the treatment of extensive alopecia areata, some patients are treatment resistant, suffer relapses, or cannot take an oral immunosuppressive medication. This study will attempt to elucidate the pre-treatment and post treatment skin and gut microbiome composition to determine whether specific bacterial species may correlate with disease or treatment response. To determine the effects of MTT on immune cell composition and activation systemically and locally in the skin, we will analyze major immune cell populations in peripheral blood samples and collect skin biopsies for histopathology and next generation sequencing analyses. Further, to determine if changes in immune cell populations affect the inflammatory response, we will profile inflammatory cytokines. To identify if changes in the gut microbiota influence the metabolic signature in AA, we will also perform untargeted metabolomics in stool gut microbiome samples and in plasma. Altogether, this comprehensive approach aims to identify the pathogenic immunological mechanisms associated with microbiome composition correlated to pre-treatment disease, post-treatment response, and any non-responders to treatment.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for phase_2

Timeline
22mo left

Started Aug 2025

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress28%
Aug 2025Mar 2028

First Submitted

Initial submission to the registry

December 18, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

December 24, 2024

Completed
8 months until next milestone

Study Start

First participant enrolled

August 21, 2025

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 15, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 15, 2028

Last Updated

September 8, 2025

Status Verified

September 1, 2025

Enrollment Period

2.6 years

First QC Date

December 18, 2024

Last Update Submit

September 4, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Engraftment

    Proportion of patients achieving donor microbiota engraftment measured at 8 weeks post treatment.

    Week 8

Secondary Outcomes (10)

  • Hair regrowth

    8, 16, 24, 26, 34, 42, 50 and 54 weeks post treatment

  • efficacy measure 2

    6 months post therapy

  • SALT Score

    Week 24

  • safety outcome 2

    day 30

  • safety outcome 3

    day 30

  • +5 more secondary outcomes

Study Arms (2)

Alopecia Areata study group

EXPERIMENTAL

randomized to receive antibiotics and MTT oral capsule

Drug: Vancomycin, Neomycin and MTT capsules

Alopecia Areata control group

PLACEBO COMPARATOR

randomized to receive placebo antibiotics and placebo MTT oral capsule

Drug: Placebo capsules

Interventions

patients will take 2 capsules per day for 14 days. These patients will then be clinically followed for a period of 24 weeks.

Alopecia Areata study group

patients will take 2 capsules per day for 14 days. These patients will then be clinically followed for a period of 24 weeks.

Alopecia Areata control group

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients 18 to 75 years of age with moderate to severe alopecia areata (SALT score \>30%).
  • Patients with a diagnosis of patch type alopecia areata, totalis, or universalis..
  • Duration of hair loss \>=3 months..
  • No evidence of active, ongoing regrowth present at baseline.
  • Females of childbearing potential must have a negative urine or serum pregnancy test at screening and immediately prior to MTT.
  • Females of childbearing potential must agree to use an effective form of contraception from 14 days prior to study antibiotics through at least 30 days after MTT. Acceptable forms of contraception include oral or intramuscular contraceptives, intrauterine devices, surgical sterilization.
  • Participants are not enrolled in another clinical study.
  • If undergoing treatment with a JAK inhibitor, participant is willing to discontinue treatment for 1 month prior to enrollment and throughout the duration of the study.

You may not qualify if:

  • Active gastrointestinal infection at time of enrollment.
  • Having been administered antibiotics in the last 48 hours.
  • Patients will be eligible to enroll if antibiotic therapy is discontinued for at minimum 48 hours prior to treatment..
  • Requires continued antibiotic use
  • Allergy to study antibiotics (vancomycin, neomycin).
  • Known or suspected severe gastrointestinal dysmotility disorder, e.g., gastroparesis, pseudo-obstruction, scleroderma with gastrointestinal involvement
  • Ileus or small bowel obstruction.
  • Major gastrointestinal surgery (e.g., significant bowel resection) within 3 months before enrollment. This does not include appendectomy or cholecystectomy.
  • History of total colectomy.
  • Concurrent intensive induction chemotherapy, radiation therapy or biological treatment for active malignancy.
  • Unable or unwilling to comply with protocol requirements.
  • Expected life expectancy \< 6 months.
  • Previous MTT or microbiome-based products at any time excluding this study.
  • History of severe anaphylactic or anaphylactoid food allergy.
  • Solid organ transplant recipients 90 days post-transplant or on active treatment for rejection.
  • +9 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Minnesota

Minneapolis, Minnesota, 55455, United States

RECRUITING

MeSH Terms

Conditions

Alopecia AreataAlopecia universalis

Interventions

VancomycinNeomycinmonooxyethylene trimethylolpropane tristearate

Condition Hierarchy (Ancestors)

AlopeciaHypotrichosisHair DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Intervention Hierarchy (Ancestors)

GlycopeptidesGlycoconjugatesCarbohydratesPeptidesAmino Acids, Peptides, and ProteinsAminoglycosidesGlycosides

Study Officials

  • Maria K Hordinsky, MD

    University of Minnesota

    PRINCIPAL INVESTIGATOR

Central Study Contacts

John Meisenheimer

CONTACT

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 18, 2024

First Posted

December 24, 2024

Study Start

August 21, 2025

Primary Completion (Estimated)

March 15, 2028

Study Completion (Estimated)

March 15, 2028

Last Updated

September 8, 2025

Record last verified: 2025-09

Locations