{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Lactobacillus+rhamnosus+GG+Placebo",
    "query": {
      "intervention": "Lactobacillus rhamnosus GG Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 30,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Lactobacillus+rhamnosus+GG+Placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T11:29:00.618Z",
  "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": "NCT04529980",
      "title": "Probiotics and Antibiotic Associated Diarrhea in Pediatric Complicated Appendicitis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Appendicitis",
        "Appendicitis; Perforation"
      ],
      "interventions": [
        {
          "name": "Lactobacillus rhamnosus GG (LGG) Probiotic",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Children's Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "4 Years to 18 Years"
      },
      "enrollment_count": 98,
      "start_date": "2020-09-08",
      "completion_date": "2022-02-28",
      "has_results": true,
      "last_update_posted_date": "2024-08-13",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04529980"
    },
    {
      "nct_id": "NCT00756262",
      "title": "Probiotic Lactobacillus GG to Eliminate VRE Colonization",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Vancomycin Resistant Enterococcal Colonization"
      ],
      "interventions": [
        {
          "name": "Lactobacillus GG or Culturelle",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Tufts Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 11,
      "start_date": "2003-03",
      "completion_date": "2012-07",
      "has_results": false,
      "last_update_posted_date": "2024-01-05",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00756262"
    },
    {
      "nct_id": "NCT04150380",
      "title": "Probiotic (LGG) for Veterans With PTSD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Post Traumatic Stress Disorder",
        "Inflammation"
      ],
      "interventions": [
        {
          "name": "Lactobacillus rhamnosus GG (LGG; ATCC strain 53103; CRMTS #11272; PTS #3766)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "VA Eastern Colorado Health Care System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 383,
      "start_date": "2020-08-24",
      "completion_date": "2025-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-24",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04150380"
    },
    {
      "nct_id": "NCT00934453",
      "title": "Safety of Lactobacillus Rhamnosus GG ATCC 53103 (LGG) in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Lactobacillus rhamnosus GG ATCC 53103",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 50,
      "start_date": "2009-12",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2017-01-11",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00934453"
    },
    {
      "nct_id": "NCT01545349",
      "title": "Safety of Lactobacillus Rhamnosus GG Versus Placebo in Elderly Subjects Receiving Live Attenuated Influenza Vaccine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Lactobacillus rhamnosus GG ATCC 53103 (LGG)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Live attenuated influenza vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Patricia L. Hibberd",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "65 Years to 80 Years"
      },
      "enrollment_count": 30,
      "start_date": "2012-02",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2017-01-11",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01545349"
    },
    {
      "nct_id": "NCT00282113",
      "title": "Effects of Probiotic and Prebiotic Combinations on Premature Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Premature Infants",
        "Stool Bacterial Composition",
        "Growth"
      ],
      "interventions": [
        {
          "name": "ProBioPlus",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Culturelle",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "7 Days",
        "sex": "ALL",
        "summary": "Up to 7 Days"
      },
      "enrollment_count": 90,
      "start_date": "2004-10",
      "completion_date": "2007-08",
      "has_results": true,
      "last_update_posted_date": "2010-01-28",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00282113"
    },
    {
      "nct_id": "NCT01870544",
      "title": "Does Weight Loss Surgery and Probiotic Supplementation Lead to a \"Lean\" Gut Microbiota?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Lactobacillus Rhamnosus GG",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Tufts Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 18,
      "start_date": "2013-09",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2016-02-10",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01870544"
    },
    {
      "nct_id": "NCT03383874",
      "title": "A Probiotic Intervention to Prevent Relapse Following Hospitalization for Mania",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Mania (Neurotic)"
      ],
      "interventions": [
        {
          "name": "Probio-Tec BG-VCap-6.5",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT",
        "OTHER"
      ],
      "sponsor": "University of Texas Southwestern Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 67,
      "start_date": "2018-09-06",
      "completion_date": "2024-09-23",
      "has_results": true,
      "last_update_posted_date": "2025-12-19",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03383874"
    },
    {
      "nct_id": "NCT01605747",
      "title": "Study of Culturelle in the Prophylaxis of Infection and Diarrhea",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pediatric Burns"
      ],
      "interventions": [
        {
          "name": "Culturelle",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Shriners Hospitals for Children",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Months to 18 Years"
      },
      "enrollment_count": 20,
      "start_date": "2011-01",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2013-11-13",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01605747"
    },
    {
      "nct_id": "NCT04399252",
      "title": "Effect of Lactobacillus on the Microbiome of Household Contacts Exposed to COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Microbiome"
      ],
      "interventions": [
        {
          "name": "Lactobacillus rhamnosus GG",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Lactobacillus rhamnosus GG Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "1 Year and older"
      },
      "enrollment_count": 182,
      "start_date": "2020-06-24",
      "completion_date": "2021-07-08",
      "has_results": false,
      "last_update_posted_date": "2024-04-17",
      "last_synced_at": "2026-10-06T11:29:00.618Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04399252"
    }
  ]
}