{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Human+Gut+Microbiota",
    "query": {
      "condition": "Human Gut Microbiota"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 61,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Human+Gut+Microbiota&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-07-23T23:05:50.267Z",
  "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": "NCT04100200",
      "title": "Berries, Inflammation, and Gut Microbiome",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Overweight or Obesity",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Mixed berries",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "FOS",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Control",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Combination",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Clinical Nutrition Research Center, Illinois Institute of Technology",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "20 Years to 60 Years"
      },
      "enrollment_count": 105,
      "start_date": "2019-10-07",
      "completion_date": "2026-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-25",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04100200"
    },
    {
      "nct_id": "NCT01619020",
      "title": "FlaxFx, A Research Study of the Effects of Flaxseed Lignans on Colon Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Flaxseed Lignans",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "20 Years to 45 Years"
      },
      "enrollment_count": 66,
      "start_date": "2012-10",
      "completion_date": "2017-08",
      "has_results": false,
      "last_update_posted_date": "2017-09-13",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01619020"
    },
    {
      "nct_id": "NCT03039023",
      "title": "Effects of Choline From Eggs vs. Supplements on the Generation of TMAO in Humans",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Choline Bitartrate",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Pre-cooked, pre-peeled whole hardboiled eggs",
          "type": "OTHER"
        },
        {
          "name": "Egg whites from pre-cooked, pre-peeled hardboiled eggs",
          "type": "OTHER"
        },
        {
          "name": "Phosphatidylcholine capsules",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "The Cleveland Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 86,
      "start_date": "2016-09-02",
      "completion_date": "2020-09-03",
      "has_results": true,
      "last_update_posted_date": "2026-07-13",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03039023"
    },
    {
      "nct_id": "NCT05063929",
      "title": "Impacts of Fruit on the Gut Health and Human Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiometabolic Health",
        "Healthy Aging",
        "Cognition"
      ],
      "interventions": [
        {
          "name": "Fruit (2 cup eq)",
          "type": "OTHER"
        },
        {
          "name": "Fruit restriction (1/2 cup eq)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "30 Years to 70 Years"
      },
      "enrollment_count": 40,
      "start_date": "2021-08-15",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-01-08",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05063929"
    },
    {
      "nct_id": "NCT04023604",
      "title": "Antimicrobial-free Production of Beef Cattle's Affect on Gut Microbiome",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diet Modification"
      ],
      "interventions": [
        {
          "name": "Controlled diet with beef raised without antibiotics",
          "type": "OTHER"
        },
        {
          "name": "Controlled diet with beef produced in conventional systems",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "69 Years",
        "sex": "ALL",
        "summary": "21 Years to 69 Years"
      },
      "enrollment_count": 36,
      "start_date": "2021-01-04",
      "completion_date": "2022-03-04",
      "has_results": false,
      "last_update_posted_date": "2022-09-28",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04023604"
    },
    {
      "nct_id": "NCT03181269",
      "title": "Human Milk and Infant Intestinal Microbiome Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Feeding",
        "Human Microbiome"
      ],
      "interventions": [
        {
          "name": "Intervention education",
          "type": "OTHER"
        },
        {
          "name": "Placebo Education",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 6,
      "start_date": "2017-07-27",
      "completion_date": "2018-12-20",
      "has_results": false,
      "last_update_posted_date": "2018-12-21",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03181269"
    },
    {
      "nct_id": "NCT03383341",
      "title": "What's Hopping? Cricket Protein and Human Gut Microbiota",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Cricket Protein Powder",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Colorado State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 20,
      "start_date": "2017-02-01",
      "completion_date": "2017-05-10",
      "has_results": false,
      "last_update_posted_date": "2019-04-04",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "Fort Collins, Colorado",
      "locations": [
        {
          "city": "Fort Collins",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03383341"
    },
    {
      "nct_id": "NCT04783142",
      "title": "A Study to Evaluate the Influence of Diet on GI Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "High-fiber, low-protein diet",
          "type": "OTHER"
        },
        {
          "name": "Low-fiber, high-protein diet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2021-06-11",
      "completion_date": "2023-03-27",
      "has_results": false,
      "last_update_posted_date": "2023-05-15",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 2,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04783142"
    },
    {
      "nct_id": "NCT01861964",
      "title": "Effects of Xylooligosarcharide on Composition of the Human Colonic Microflora",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Bifidobacteria",
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "Placebo (Maltodextrin)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Xylooligosarcharide 1.4g",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Xylooligosarcharide 2.8g",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "20 Years to 50 Years"
      },
      "enrollment_count": 30,
      "start_date": "2012-02",
      "completion_date": "2013-01",
      "has_results": false,
      "last_update_posted_date": "2016-11-28",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01861964"
    },
    {
      "nct_id": "NCT06791993",
      "title": "Impact of Probiotics on Gut Microbiome During Antibiotic Prophylaxis in Elective Orthopedic Surgery",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Dysbiosis",
        "Gut -microbiota",
        "Microbiome Analysis",
        "Probiotic",
        "Antibiotic Prophylaxis"
      ],
      "interventions": [
        {
          "name": "Placebo Capsule",
          "type": "DRUG"
        },
        {
          "name": "Probiotic with Human Milk Oligosaccharides (HMO)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Acibadem Maslak Hospital",
      "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": 60,
      "start_date": "2025-02-01",
      "completion_date": "2025-10-01",
      "has_results": false,
      "last_update_posted_date": "2025-01-24",
      "last_synced_at": "2026-07-23T23:05:50.267Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06791993"
    }
  ]
}