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Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Allergic Disease Onset Prevention Study

ClinicalTrials.gov ID: NCT05003804

Public ClinicalTrials.gov record NCT05003804. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 17, 2026, 10:10 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 1b/2, Randomized, Double-blind, Placebo-controlled, Multi-center Study of STMC-103H in Neonates and Infants at Risk for Developing Allergic Disease

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This is a Phase 1b/2, randomized, double-blind, multi-center study to evaluate the safety, tolerability, and preliminary clinical efficacy of STMC-103H in neonates and infants at risk for developing allergic disease (Type 1 hypersensitivity). Subjects will be enrolled in a three-part sequential approach. Participants in the safety-run portion of the study (Part A1: 1 year to \<6 years of age and A2: 1 month to \<12 months of age) will receive 28 days of treatment with STMC-103H or placebo, followed by 28 days of follow-up. A Data and Safety Monitoring Committee (DSMC) will review safety data after all patients in each part complete 28 days of therapy prior to enrolling the next part. After A2, Part B will enroll 224 patients for 336 days of treatment with STMC-103H or placebo, followed by 336 days of follow-up. Stool, blood, and optional samples will be collected in Parts A2 and part B. Primary safety endpoints are frequency, type and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs), as well as findings on physical exams, vitals, and safety laboratories. The primary efficacy endpoint is incidence of physician-diagnosed atopic dermatitis at day 336.

Study identification

NCT ID
NCT05003804
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1, Phase 2
Lead sponsor
Siolta Therapeutics, Inc.
Industry
Enrollment
283 participants

Conditions and interventions

Interventions

Biological

Eligibility (public fields only)

Age range
0 Days to 14 Days
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 1, 2021 (Actual)
Primary completion
Nov 26, 2024 (Actual)
Completion
Oct 21, 2025 (Actual)
Last update posted
Nov 20, 2025

2021 – 2025

United States locations

U.S. sites
24
U.S. states
16
U.S. cities
22
Facility City State ZIP Site status
University of Arizona Health Sciences Tucson Arizona 85724 —
Arkansas Children's Research Institute Little Rock Arkansas 72202 —
UCLA Health Los Angeles California 90095 —
Rady Children's Hospital - San Diego San Diego California 92123 —
UCSF Benioff Children's Hospital San Francisco California 94158 —
Children's Hospital Colorado Aurora Colorado 80045 —
Children's Healthcare of Atlanta Atlanta Georgia 30329 —
Lurie Children's Hospital Chicago Illinois 60611 —
University of Chicago Medicine Chicago Illinois 60637 —
Riley Children's Health at University of Indiana Indianapolis Indiana 46202 —
Johns Hopkins University School of Medicine Baltimore, MD Maryland 21205 —
Boston Children's Hospital Boston Massachusetts 02215 —
University of Michigan Health Ann Arbor Michigan 48104 —
Northwell Healthcare Great Neck New York 11021 —
NYU Langone Fink Children's New York New York 10016 —
Mt. Sinai Jaffe Allergy Institute New York New York 10029 —
University of Rochester Medical Center Rochester New York 14642 —
Cincinnati Children's Hospital Cincinnati Ohio 45229 —
Tribe Clinical Research Greenville South Carolina 29607 —
Coastal Pediatrics Research Summerville South Carolina 29486 —
Dell Medical School at UT Austin Austin Texas 78723 —
UT Southwestern/Children's Health Dallas Texas 75235 —
Seattle Allergy and Asthma Research Institute Seattle Washington 98115 —
Univ. of Wisconsin-Madison/Jackson Research Group Madison Wisconsin 53792 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 7 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05003804, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Nov 20, 2025 · Synced Oct 17, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05003804 live on ClinicalTrials.gov.

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