{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vancomycin+pretreatment", "query": { "intervention": "Vancomycin pretreatment" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 7, "total_pages": 1, "next_page_url": null, "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-04T07:57:14.987Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT03006809", "title": "Optimal Fecal Microbiota Transplant Dosing for Mild to Moderate Ulcerative Colitis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Ulcerative Colitis" ], "interventions": [ { "name": "Fecal Microbiota Transplantation (FMT), OpenBiome", "type": "BIOLOGICAL" }, { "name": "pretreatment antibiotics", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "OTHER" ], "sponsor": "Najwa Elnachef", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "64 Years", "sex": "ALL", "summary": "18 Years to 64 Years" }, "enrollment_count": 30, "start_date": "2017-03-02", "completion_date": "2021-04-04", "has_results": false, "last_update_posted_date": "2021-04-28", "last_synced_at": "2026-09-04T07:57:14.987Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03006809" }, { "nct_id": "NCT05370885", "title": "VE202 in Patients With Mild-to-Moderate Ulcerative Colitis", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Ulcerative Colitis", "Colitis, Ulcerative" ], "interventions": [ { "name": "VE202", "type": "BIOLOGICAL" }, { "name": "Vancomycin Oral Capsule", "type": "DRUG" }, { "name": "VE202 Placebo", "type": "OTHER" }, { "name": "Vancomycin Placebo", "type": "OTHER" } ], "intervention_types": [ "BIOLOGICAL", "DRUG", "OTHER" ], "sponsor": "Vedanta Biosciences, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 114, "start_date": "2023-05-08", "completion_date": "2025-08-29", "has_results": false, "last_update_posted_date": "2025-12-17", "last_synced_at": "2026-09-04T07:57:14.987Z", "location_count": 10, "location_summary": "Naples, Florida • Orlando, Florida • Decatur, Georgia + 6 more", "locations": [ { "city": "Naples", "state": "Florida" }, { "city": "Orlando", "state": "Florida" }, { "city": "Decatur", "state": "Georgia" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT05370885" }, { "nct_id": "NCT03817125", "title": "Melanoma Checkpoint and Gut Microbiome Alteration With Microbiome Intervention", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Metastatic Melanoma" ], "interventions": [ { "name": "Placebo for antibiotic", "type": "DRUG" }, { "name": "Vancomycin pretreatment", "type": "DRUG" }, { "name": "Nivolumab", "type": "DRUG" }, { "name": "Matching Placebo for SER-401", "type": "DRUG" }, { "name": "SER-401", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Parker Institute for Cancer Immunotherapy", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 14, "start_date": "2019-01-28", "completion_date": "2022-03-04", "has_results": true, "last_update_posted_date": "2024-06-06", "last_synced_at": "2026-09-04T07:57:14.987Z", "location_count": 7, "location_summary": "Los Angeles, California • Boston, Massachusetts • New Brunswick, New Jersey + 3 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "New Brunswick", "state": "New Jersey" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT03817125" }, { "nct_id": "NCT03759041", "title": "A Study to Assess Efficacy and Safety of SER-287 in Adults With Active Mild-to-Moderate Ulcerative Colitis", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Ulcerative Colitis" ], "interventions": [ { "name": "Vancomycin Pre-Treatment", "type": "DRUG" }, { "name": "Placebo for Vancomycin Pre-Treatment", "type": "DRUG" }, { "name": "SER-287", "type": "DRUG" }, { "name": "Placebo for SER-287", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Seres Therapeutics, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "80 Years", "sex": "ALL", "summary": "18 Years to 80 Years" }, "enrollment_count": 203, "start_date": "2018-12-19", "completion_date": "2021-10-13", "has_results": true, "last_update_posted_date": "2022-08-12", "last_synced_at": "2026-09-04T07:57:14.987Z", "location_count": 81, "location_summary": "Phoenix, Arizona • North Little Rock, Arkansas • La Jolla, California + 70 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "North Little Rock", "state": "Arkansas" }, { "city": "La Jolla", "state": "California" }, { "city": "Lancaster", "state": "California" }, { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03759041" }, { "nct_id": "NCT04995653", "title": "A Multiple Dose Study to Evaluate Safety, Tolerability, PK, and Efficacy of SER-155 in Adults Undergoing HSCT", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Allogeneic Hematopoietic Stem Cell Transplantation" ], "interventions": [ { "name": "Vancomycin Pre-Treatment", "type": "DRUG" }, { "name": "Vancomycin Placebo", "type": "DRUG" }, { "name": "SER-155", "type": "DRUG" }, { "name": "SER-155 Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Seres Therapeutics, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 60, "start_date": "2021-11-24", "completion_date": "2024-07-23", "has_results": false, "last_update_posted_date": "2024-10-01", "last_synced_at": "2026-09-04T07:57:14.987Z", "location_count": 13, "location_summary": "Gilbert, Arizona • Scottsdale, Arizona • Duarte, California + 10 more", "locations": [ { "city": "Gilbert", "state": "Arizona" }, { "city": "Scottsdale", "state": "Arizona" }, { "city": "Duarte", "state": "California" }, { "city": "Marina del Rey", "state": "California" }, { "city": "Washington D.C.", "state": "District of Columbia" } ], "official_url": "https://clinicaltrials.gov/study/NCT04995653" }, { "nct_id": "NCT02618187", "title": "A Study to Evaluate the Safety, Tolerability and Microbiome Dynamics of SER-287 in Subjects With Mild-to-Moderate Ulcerative Colitis", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Ulcerative Colitis" ], "interventions": [ { "name": "SER-287", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Placebo Pre-Treat", "type": "DRUG" }, { "name": "Vancomycin Pre-Treat", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Seres Therapeutics, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "18 Years to 75 Years" }, "enrollment_count": 58, "start_date": "2016-01-13", "completion_date": "2018-01-26", "has_results": true, "last_update_posted_date": "2019-06-20", "last_synced_at": "2026-09-04T07:57:14.987Z", "location_count": 1, "location_summary": "Marlborough, Massachusetts", "locations": [ { "city": "Marlborough", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT02618187" }, { "nct_id": "NCT04236778", "title": "First-in-human Study of VE303 in Healthy Adult Volunteers", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Healthy Volunteers" ], "interventions": [ { "name": "VE303", "type": "DRUG" }, { "name": "Oral Vancomycin", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Vedanta Biosciences, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "60 Years", "sex": "ALL", "summary": "18 Years to 60 Years" }, "enrollment_count": 39, "start_date": "2017-11-28", "completion_date": "2019-03-11", "has_results": false, "last_update_posted_date": "2020-01-27", "last_synced_at": "2026-09-04T07:57:14.987Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT04236778" } ] }