Evaluating Oral Encapsulated Microbiota Transplantation Therapy for Peanut Allergy

This study is testing an oral encapsulated microbiota transplantation therapy (MTT) to see if it's safe and effective for people with peanut allergy. Researchers want to learn if this therapy, sometimes given after a short course of antibiotics, can help reduce allergic reactions to peanuts. The study is looking for 37 participants, aged 12 to 17, who have a peanut allergy. For some participants (Part A), success means being able to tolerate more peanut protein (from 100 mg to 300 mg) after treatment. For others (Part B), success means achieving sustained unresponsiveness to peanuts after 12 weeks of MTT. The current recruitment status is unclear.

Study design
This is a Phase 2 interventional study with two parts. Part A is a randomized, double-blind, placebo-controlled trial, while Part B is an open-label study. It plans to enroll 37 participants.
What's involved
Participants in Part A will receive antibiotics or placebo for 7 days, then oral MTT capsules or placebo for 28 days. They will have food challenges and blood draws, with visits up to 6 months after treatment. Part B participants will also receive antibiotics and MTT capsules for 28 days, and will be on maintenance peanut oral immunotherapy.
Compensation
Not stated in the trial record.
Follow-up
Participants in Part A will be followed for 6 months after the end of treatment. Participants in Part B will be assessed for sustained unresponsiveness after 12 weeks of MTT.

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NCT05695261

Evaluating the Safety and Efficacy of Oral Encapsulated Microbiota Transplantation Therapy in Peanut Allergic Patients

Recruiting
PHASE2Ages 12–17InterventionalTreatment
Rima Rachid
~37 participants
Updated 2025-08-24 on ClinicalTrials.gov
What's tested:Microbial Transplantation TherapyAntibioticPlacebo (in place of MTT)Placebo (in place of antibiotics)Oral Immunotherapy (OIT)

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
PART A: Changes in threshold of peanut reactivity during DBPCFC (<=100 mg to 300 mg peanut protein)
Measured over 4 months post MTT
+1 more outcome measured
Allergy, Peanut
Peanut Allergy
Peanut Hypersensitivity
Peanut-Induced Anaphylaxis
Food Allergy
Food Allergy Peanut
1 sites across 1 states
Massachusetts1
  • Rima Rachid · PRINCIPAL_INVESTIGATOR · Boston Children's Hospital

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  • PART A: Changes in threshold of peanut reactivity during DBPCFC (<=100 mg to 300 mg peanut protein)4 months post MTT

    PART A: Changes in threshold of peanut reactivity during DBPCFC after 28 days of MTT from \<=100 mg to 300 mg peanut protein and 4 months post therapy initiation.

  • PART B: Achievement of sustained unresponsiveness after 12 weeks of MTT12 weeks

    PART B: Achievement of sustained unresponsiveness after 12 weeks of MTT therapy combined with peanut OIT followed by 12 weeks therapy cessation