{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+placebo+supplement&page=5",
    "query": {
      "intervention": "Oral placebo supplement",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 311,
    "total_pages": 32,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+placebo+supplement&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Oral+placebo+supplement&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T09:55:37.422Z",
  "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": "NCT06808867",
      "title": "Efficacy of Dietary Supplement in Subjects With Acid Reflux and/or Abdominal Bloating/Distention and GI Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Dietary Supplement with Active Ingredient Blend",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Olly, PBC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 85,
      "start_date": "2024-02-25",
      "completion_date": "2024-04-15",
      "has_results": false,
      "last_update_posted_date": "2025-02-05",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06808867"
    },
    {
      "nct_id": "NCT02134119",
      "title": "Echinacea-based Supplement Does Not Improve Markers of Performance in Athletes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ineffective Erythropoiesis"
      ],
      "interventions": [
        {
          "name": "Echinacea-based dietary supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "DRUG"
      ],
      "sponsor": "University of Georgia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "44 Years",
        "sex": "ALL",
        "summary": "18 Years to 44 Years"
      },
      "enrollment_count": 45,
      "start_date": "2012-01",
      "completion_date": "2013-07",
      "has_results": true,
      "last_update_posted_date": "2017-01-05",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "Lubbock, Texas",
      "locations": [
        {
          "city": "Lubbock",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02134119"
    },
    {
      "nct_id": "NCT01125436",
      "title": "A Trial of Vitamin D Therapy in Patients With Heart Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Cholecalciferol",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Case Western Reserve University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2008-07",
      "completion_date": "2011-09",
      "has_results": true,
      "last_update_posted_date": "2022-08-10",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01125436"
    },
    {
      "nct_id": "NCT07768267",
      "title": "Herbal Supplement (Biocidin REMOVE) for Bacterial Overgrowth in Irritable Bowel Syndrome",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Irritable Bowel Syndrome (IBS)",
        "Small Intestinal Bacterial Overgrowth Syndrome (SIBO)"
      ],
      "interventions": [
        {
          "name": "Biocidin REMOVE",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2026-10-01",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-04",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07768267"
    },
    {
      "nct_id": "NCT00343642",
      "title": "Dietary Treatment of Crohn's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Crohn's Disease",
        "Inflammatory Bowel Disease"
      ],
      "interventions": [
        {
          "name": "Active fructo-oligosaccharide",
          "type": "DRUG"
        },
        {
          "name": "Placebo fructo-oligosaccharide",
          "type": "DRUG"
        },
        {
          "name": "Diet",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Rush University 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": 73,
      "start_date": "2006-09",
      "completion_date": "2012-10",
      "has_results": true,
      "last_update_posted_date": "2021-06-09",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 2,
      "location_summary": "Macon, Georgia • Chicago, Illinois",
      "locations": [
        {
          "city": "Macon",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00343642"
    },
    {
      "nct_id": "NCT03682029",
      "title": "Epigenetics, Vitamin C, and Abnormal Blood Cell Formation - Vitamin C in Patients With Low-Risk Myeloid Malignancies",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Myelodysplastic Syndromes",
        "Chronic Myelomonocytic Leukemia-1",
        "Cytopenia"
      ],
      "interventions": [
        {
          "name": "Vitamin C (ascorbic acid)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Copenhagen University Hospital, Rigshospitalet",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 109,
      "start_date": "2017-11-21",
      "completion_date": "2025-09-27",
      "has_results": false,
      "last_update_posted_date": "2024-04-17",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03682029"
    },
    {
      "nct_id": "NCT03540602",
      "title": "Polyphenol Rich Supplementation on Markers of Recovery From Intense Resistance Exercise",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Muscle Soreness"
      ],
      "interventions": [
        {
          "name": "Tart Cherry",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Oral Capsule [CEBOCAP]",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Jacksonville University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "MALE",
        "summary": "21 Years to 45 Years · Male only"
      },
      "enrollment_count": 20,
      "start_date": "2018-05-01",
      "completion_date": "2018-08",
      "has_results": false,
      "last_update_posted_date": "2018-05-30",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03540602"
    },
    {
      "nct_id": "NCT00318474",
      "title": "Mycophenolate Mofetil (MMF) in Patients With IgA Nephropathy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "IgA Nephropathy"
      ],
      "interventions": [
        {
          "name": "Mycophenolate Mofetil (MMF)",
          "type": "DRUG"
        },
        {
          "name": "MMF Placebo",
          "type": "DRUG"
        },
        {
          "name": "ACEi",
          "type": "DRUG"
        },
        {
          "name": "FOS",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "St. Joseph's Hospital and Medical Center, Phoenix",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "7 Years to 70 Years"
      },
      "enrollment_count": 184,
      "start_date": "2002-01",
      "completion_date": "2010-03",
      "has_results": true,
      "last_update_posted_date": "2016-03-07",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "Phoenix, Arizona",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00318474"
    },
    {
      "nct_id": "NCT07140874",
      "title": "Zinc as an Adjunctive Therapy for Cervical Dystonia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cervical Dystonia"
      ],
      "interventions": [
        {
          "name": "Zinc citrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 25,
      "start_date": "2026-06-01",
      "completion_date": "2027-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07140874"
    },
    {
      "nct_id": "NCT07441070",
      "title": "Effect of Ashwagandha Root Extract on Stress, Anxiety, and Sleep Quality in Adults Experiencing Minority Stress",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Minority Stress",
        "Psychological Stress",
        "Anxiety"
      ],
      "interventions": [
        {
          "name": "Ashwagandha Root Extract",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Capsule",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "SF Research Institute, Inc.",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 80,
      "start_date": "2026-04-29",
      "completion_date": "2026-08-15",
      "has_results": false,
      "last_update_posted_date": "2026-04-27",
      "last_synced_at": "2026-10-08T09:55:37.422Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07441070"
    }
  ]
}