Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 7, 2026, 5:58 PM EDT

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

Showing 1–8 of 8 matching trials from the live ClinicalTrials.gov search.
Conditions
Clostridioides Difficile Infection
Interventions
SER-109
Biological
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
263 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
97
States / cities
Dothan, Alabama • Sun City West, Arizona • Mather, California + 84 more
Conditions
Metastatic Melanoma
Interventions
Placebo for antibiotic, Vancomycin pretreatment, Nivolumab, Matching Placebo for SER-401, SER-401
Drug
Lead sponsor
Parker Institute for Cancer Immunotherapy
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
7
States / cities
Los Angeles, California • Boston, Massachusetts • New Brunswick, New Jersey + 3 more
Conditions
Clostridium Difficile Infection
Interventions
SER-109, Placebo
Biological · Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
51
States / cities
North Little Rock, Arkansas • Mather, California • Mountain View, California + 46 more
Conditions
Ulcerative Colitis
Interventions
Vancomycin Pre-Treatment, Placebo for Vancomycin Pre-Treatment, SER-287, Placebo for SER-287
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
81
States / cities
Phoenix, Arizona • North Little Rock, Arkansas • La Jolla, California + 70 more
Conditions
Clostridium Difficile
Interventions
SER-109, Placebo
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
89 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
30
States / cities
Oceanside, California • Sacramento, California • Ventura, California + 26 more
Conditions
Ulcerative Colitis
Interventions
SER-287, Placebo, Placebo Pre-Treat, Vancomycin Pre-Treat
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years to 75 Years
Enrollment
58 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Marlborough, Massachusetts
Conditions
Clostridium Difficile Infection
Interventions
SER-262, Placebo
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
22
States / cities
Athens, Alabama • Fountain Valley, California • La Mesa, California + 19 more
Conditions
Allogeneic Hematopoietic Stem Cell Transplantation
Interventions
Vancomycin Pre-Treatment, Vancomycin Placebo, SER-155, SER-155 Placebo
Drug
Lead sponsor
Seres Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
13
States / cities
Gilbert, Arizona • Scottsdale, Arizona • Duarte, California + 10 more