{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Galactooligosaccharide",
    "query": {
      "intervention": "Galactooligosaccharide"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T19:31:17.003Z",
  "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": "NCT05392556",
      "title": "Prebiotic and Probiotic Modulation of the Gut Microbiota-gut-brain Axis During Acute Stress",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stress Physiology"
      ],
      "interventions": [
        {
          "name": "Probiotic",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Prebiotic",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "United States Army Research Institute of Environmental Medicine",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "17 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "17 Years to 39 Years"
      },
      "enrollment_count": 73,
      "start_date": "2022-07-06",
      "completion_date": "2025-10-28",
      "has_results": false,
      "last_update_posted_date": "2025-12-26",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "Natick, Massachusetts",
      "locations": [
        {
          "city": "Natick",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05392556"
    },
    {
      "nct_id": "NCT04373057",
      "title": "Prebiotic Galacto-oligosaccharide and Acute GVHD",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Acute GVHD"
      ],
      "interventions": [
        {
          "name": "Galacto-oligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Maltodextrin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 128,
      "start_date": "2021-01-22",
      "completion_date": "2029-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-22",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 2,
      "location_summary": "Kansas City, Kansas • Durham, North Carolina",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04373057"
    },
    {
      "nct_id": "NCT04551937",
      "title": "Effects of Prebiotics on Cognition and Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Physiological Stress",
        "Cognitive Change",
        "Gastrointestinal Health"
      ],
      "interventions": [
        {
          "name": "Lactose Free 1% Milk",
          "type": "OTHER"
        },
        {
          "name": "Lactose Free 1% Milk + 10 g prebiotic",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "25 Years to 45 Years"
      },
      "enrollment_count": 24,
      "start_date": "2018-02-14",
      "completion_date": "2018-09-18",
      "has_results": false,
      "last_update_posted_date": "2020-09-16",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04551937"
    },
    {
      "nct_id": "NCT01137760",
      "title": "Galactooligosaccharide, Immune Strength, and Digestive Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Sucrose",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Galactooligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 427,
      "start_date": "2009-10",
      "completion_date": "2010-01",
      "has_results": false,
      "last_update_posted_date": "2012-08-02",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01137760"
    },
    {
      "nct_id": "NCT02355210",
      "title": "Use of a Novel Synbiotic to Change Human Gut Bacteria and Improve Health in Obese Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Intestinal Microbiota and Barrier Function"
      ],
      "interventions": [
        {
          "name": "Bifidobacteria adolescentis BD1",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Bifidobacteria animalis subsp. lactis BB-12",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Bifidobacteria adolescentis BD1 and galactooligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Bifidobacteria animalis subsp. lactis BB-12 and galactooligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "galactooligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Rush University Medical Center",
      "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": 151,
      "start_date": "2013-06",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2021-11-23",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02355210"
    },
    {
      "nct_id": "NCT02953691",
      "title": "Exploring the Impact of Perioperative Galacto-Oligosaccharides (GOS) on Stress, Anxiety and Cognition",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anxiety",
        "Pain",
        "Surgery"
      ],
      "interventions": [
        {
          "name": "Galacto-Oligosaccharide",
          "type": "DRUG"
        },
        {
          "name": "Maltodextrin (Placebo)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jeff Taekman, M.D.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 0,
      "start_date": "2017-06-09",
      "completion_date": "2018-01-01",
      "has_results": false,
      "last_update_posted_date": "2018-01-31",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02953691"
    },
    {
      "nct_id": "NCT01302561",
      "title": "Galactooligosaccharide, Immune Strength, and Digestive Health in Older Adults Over Cold and Flu Season",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Sucrose",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Galactooligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 84,
      "start_date": "2010-10",
      "completion_date": "2011-04",
      "has_results": false,
      "last_update_posted_date": "2012-08-02",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01302561"
    },
    {
      "nct_id": "NCT06915129",
      "title": "The Effect of Galactooligosaccharides (GOS) on the Gut Microbiota of Lactose Intolerance Individuals",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Modulation of the Human Gut Microbiota by Prebiotic Galactooligosaccharides (GOS)"
      ],
      "interventions": [
        {
          "name": "Prebiotic galactooligosaccharides (GOS)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Oregon State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "19 Years to 55 Years"
      },
      "enrollment_count": 12,
      "start_date": "2021-10-25",
      "completion_date": "2021-12-06",
      "has_results": false,
      "last_update_posted_date": "2025-04-08",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "Corvallis, Oregon",
      "locations": [
        {
          "city": "Corvallis",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06915129"
    },
    {
      "nct_id": "NCT01263847",
      "title": "Galactooligosaccharide (GOS) Supplementation and Calcium Absorption in Girls",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "Galactooligosaccharide",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Purdue University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "12 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 12 Years · Female only"
      },
      "enrollment_count": 31,
      "start_date": "2009-06",
      "completion_date": "2010-07",
      "has_results": false,
      "last_update_posted_date": "2018-05-09",
      "last_synced_at": "2026-09-02T19:31:17.003Z",
      "location_count": 1,
      "location_summary": "West Lafayette, Indiana",
      "locations": [
        {
          "city": "West Lafayette",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01263847"
    }
  ]
}