Capsule Microbiota Transplant Therapy for Hidradenitis Suppurativa

September 2, 2026 updated by: University of Minnesota
HS is relatively common in the United States with a prevalence of 0.1-1.0%. 1 HS has a dramatic impact on quality of life, significantly more so than other chronic skin diseases, such as psoriasis or atopic dermatitis (AD). HS also has a large economic impact, due to frequent emergency department and inpatient care utilization, and re-hospitalization rates similar to congestive heart failure. Unfortunately, few treatment options are effective. There are currently three FDA-approved treatments for HS, including adalimumab, secukinumab, and bimekizumab, each with only 40- 60% respond to treatment and over 50% lose response within one year . The overarching goal of this pilot study is to investigate the central hypothesis that oral microbiota transplant therapy(MTT) alters the gut microbiome in patients with Hidradenitis Suppurativa (HS), influencing cutaneous microbiota via systemically absorbed gut-derived metabolites.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

16

Phase

  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Minnesota
      • Minneapolis, Minnesota, United States, 55414
        • Recruiting
        • University of Minnesota
        • Principal Investigator:
          • Noah Goldfarb, MD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Able and willing to provide informed consent
  • English speaking
  • Age >= 18years of age
  • Diagnosis of hidradenitis suppurativa by a dermatologist
  • Women who are not post-menopausal (at least 12 months of non-therapy induced amenorrhea) or surgically sterile (e.g. absence of ovaries and/or uterus) must remain abstinent or use a highly effective form of birth control (e.g. oral contraception, transdermal patch, barrier, intrauterine device). Periodic abstinence and early withdraw are not acceptable methods
  • Able to comply to study measures in the opinion of the investigator.
  • Stable doses of all medications for 30 days prior to baseline

Exclusion Criteria:

  • Non-English speaking
  • Refusal or inability to provide informed consent
  • Planning on moving within 6 months from start of study
  • Allergy to neomycin or vancomycin
  • Anaphylactic food allergies
  • Pregnancy, breastfeeding or planning pregnancy during study period (negative pregnancy test needed for persons of childbearing potential)
  • Use of any topical or oral antibiotics within 30 days of randomization
  • Use of any oral antibiotics within 90 days of randomization
  • History of inflammatory bowel disease
  • Extensive bowel resection (e.g., subtotal colectomy, substantial removal of small bowel)
  • No major bowel surgery within 4 weeks prior to baseline or planned major surgery during the study period
  • No active skin disease other than HS that could interfere with assessments

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: MMT group
patients with HS randomized to receive MTT
Patients receive 2 capsules daily for one week followed by one capsule daily for 2 weeks. MTT capsules are derived from a single donor per patient.
Placebo Comparator: Placebo group
patients with HS randomized to receive placebo treatment
The placebo consists of a mixture of trehalose and crystalline methylcellulose (Avicel) in 6:1 (w/w) ratio that is packaged in size 0 swedish orange capsules, which are then double encapsulated in size 00 natural colored capsules to make them visibly indistinguishable from encapsulated active product.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percent donor engraftment
Time Frame: Baseline, 6 weeks, 12 weeks
Percent donor engraftment based on Bayesian, community-wide, culture-independent microbial source tracking
Baseline, 6 weeks, 12 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Skin toxonomic relative abundances and diversity indices
Time Frame: 6 weeks, 12 weeks
Change in skin taxonomic relative abundances and diversity indices (alpha and beta diversity) at 6 and 12 weeks compared to baseline (t- test and regression-analysis evaluating change overtime for two and three time points)
6 weeks, 12 weeks
Stool toxonomic relative abundances and diversity indices
Time Frame: 6 weeks, 12 weeks
Change in stool taxonomic relative abundances and diversity indices (alpha and beta diversity) at 6 and 12 weeks compared to baseline (t- test and regression-analysis evaluating change overtime for two and three time points)
6 weeks, 12 weeks
Stool small chain fatty acids
Time Frame: 12 weeks
Change in stool small chain fatty acids (butyrate, acetate and propionate) at 12 weeks compared to baseline
12 weeks
Serum small chain fatty acids
Time Frame: 12 weeks
Change in serum small chain fatty acids (butyrate, acetate and propionate) at 12 weeks compared to baseline
12 weeks
Stool small molecule metabolites
Time Frame: 6 weeks, 12 weeks
change in stool small molecule metabolites including kynurenine, tryptophan and sphingomyelins at 6 and 12 weeks compared to baseline
6 weeks, 12 weeks
Physician-reported clinical response 1
Time Frame: 12 weeks
Physician-reported clinical response at 12 weeks compared to baseline measured by Hidradenitis Suppurativa Clinical Response (HiSCR)
12 weeks
Physician-reported clinical response 2
Time Frame: 12 weeks
Physician-reported clinical response at 12 weeks compared to baseline measured by International Hidradenitis Suppurativa Severity Score 55 (IHS4-55)
12 weeks
Change in IHS4
Time Frame: 12 weeks
12 weeks compared to baseline
12 weeks
Change in total draining tunnel count
Time Frame: 12 weeks
12 weeks compared to baseline
12 weeks
Change in the Hidradenitis Suppurativa Activity and Severity Index
Time Frame: 12 weeks
12 weeks compared to baseline
12 weeks
Change in Hidradenitis Suppurativa quality of life (HiSQOL)
Time Frame: 12 weeks
12 weeks compared to baseline
12 weeks
Change in Dermatology Life Quality Index (DLQI)
Time Frame: 12 weeks
12 weeks compared to baseline
12 weeks
Change in skin pain numerical rating scale (NRS)
Time Frame: 12 weeks
12 weeks compared to baseline
12 weeks
Change in hidradenitis suppurativa patient global assessment
Time Frame: 12 weeks
12 weeks compared to baseline
12 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Noah Goldfarb, MD, University of Minnesota

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 27, 2023

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

December 30, 2026

Study Registration Dates

First Submitted

September 11, 2023

First Submitted That Met QC Criteria

September 21, 2023

First Posted (Actual)

September 28, 2023

Study Record Updates

Last Update Posted (Actual)

September 3, 2026

Last Update Submitted That Met QC Criteria

September 2, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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