{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=placebo+softgel",
    "query": {
      "intervention": "placebo softgel"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 70,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=placebo+softgel&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-09T10:49:31.045Z",
  "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": "NCT02518594",
      "title": "A Trial of Pessary and Progesterone for Preterm Prevention in Twin Gestation With a Short Cervix",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Short Cervical Length"
      ],
      "interventions": [
        {
          "name": "Vaginal progesterone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Arabin Pessary",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "The George Washington University Biostatistics Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 1311,
      "start_date": "2015-11-13",
      "completion_date": "2025-02-18",
      "has_results": true,
      "last_update_posted_date": "2026-06-25",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 16,
      "location_summary": "Birmingham, Alabama • San Francisco, California • Denver, Colorado + 12 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02518594"
    },
    {
      "nct_id": "NCT06146101",
      "title": "RePOSA-Revealing the Efficacy of IHL-42X Use in Patients With OSA",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Obstructive Sleep Apnea"
      ],
      "interventions": [
        {
          "name": "IHL-42X Low Dose",
          "type": "DRUG"
        },
        {
          "name": "IHL-42X High Dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "IHL-42X (Optimal Dose)",
          "type": "DRUG"
        },
        {
          "name": "Dronabinol",
          "type": "DRUG"
        },
        {
          "name": "Acetazolamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Incannex Healthcare Ltd",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 121,
      "start_date": "2024-05-02",
      "completion_date": "2025-07-27",
      "has_results": false,
      "last_update_posted_date": "2026-07-27",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 20,
      "location_summary": "Chula Vista, California • Long Beach, California • Upland, California + 16 more",
      "locations": [
        {
          "city": "Chula Vista",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Upland",
          "state": "California"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06146101"
    },
    {
      "nct_id": "NCT05508529",
      "title": "Natural Modulators of Immune Function and Mood",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Stress"
      ],
      "interventions": [
        {
          "name": "Chaga Mushroom",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Algae Extract",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Black Cumin Seed Oil",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Black Cumin Seed Oil + Astaxanthin",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Black Cumin Seed Oil + Omega 3",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "3 Waves Wellness",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 120,
      "start_date": "2020-07-01",
      "completion_date": "2021-07-01",
      "has_results": false,
      "last_update_posted_date": "2022-08-19",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "Plymouth, Massachusetts",
      "locations": [
        {
          "city": "Plymouth",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05508529"
    },
    {
      "nct_id": "NCT06544291",
      "title": "Combined THC and CBD for OUD and Chronic Pain",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Chronic Pain",
        "Opioid Use Disorder"
      ],
      "interventions": [
        {
          "name": "CBD 300mg",
          "type": "DRUG"
        },
        {
          "name": "CBD 600mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo 0mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "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": 147,
      "start_date": "2024-10-22",
      "completion_date": "2028-01-28",
      "has_results": false,
      "last_update_posted_date": "2026-07-16",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06544291"
    },
    {
      "nct_id": "NCT03209895",
      "title": "Study to Evaluate the Safety and Efficacy of a Proprietary \"Joint Health\" Dietary Supplement in Subjects With Joint and Connective Tissue Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Joint Pain"
      ],
      "interventions": [
        {
          "name": "Joint Health Product",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Glucosamine / Chondroitin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "U.S. Nutraceuticals, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 135,
      "start_date": "2010-10-08",
      "completion_date": "2011-06-13",
      "has_results": false,
      "last_update_posted_date": "2017-07-06",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "Sausalito, California",
      "locations": [
        {
          "city": "Sausalito",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03209895"
    },
    {
      "nct_id": "NCT06848101",
      "title": "Eye and Carotenoid Augmentation Research and Evaluation (EyeCARE)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vision",
        "Eye Health"
      ],
      "interventions": [
        {
          "name": "Carotenoid Group",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Control (placebo) group",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "University of Illinois at Urbana-Champaign",
      "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": 40,
      "start_date": "2024-03-15",
      "completion_date": "2025-03-14",
      "has_results": false,
      "last_update_posted_date": "2025-02-26",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "Urbana, Illinois",
      "locations": [
        {
          "city": "Urbana",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06848101"
    },
    {
      "nct_id": "NCT05015439",
      "title": "Cannabidiol (CBD) in Adults With ASD",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Autism Spectrum Disorder"
      ],
      "interventions": [
        {
          "name": "Cannabidiol",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2023-04-20",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-11-10",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05015439"
    },
    {
      "nct_id": "NCT03787628",
      "title": "Cannabidiol Effects on Craving and Relapse Prevention in Opioid Use Disorder",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Opioid-use Disorder"
      ],
      "interventions": [
        {
          "name": "Cannabidiol (CBD) 600 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2022-05-19",
      "completion_date": "2024-03-12",
      "has_results": true,
      "last_update_posted_date": "2026-04-22",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "Tarzana, California",
      "locations": [
        {
          "city": "Tarzana",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03787628"
    },
    {
      "nct_id": "NCT00868738",
      "title": "Evaluation of Calcium, Vitamin D, Magnesium, and Zinc Absorption in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Mineral Absorption"
      ],
      "interventions": [
        {
          "name": "Vitamin D",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Baylor College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "4 Years to 8 Years"
      },
      "enrollment_count": 60,
      "start_date": "2009-03",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2011-11-02",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00868738"
    },
    {
      "nct_id": "NCT02366481",
      "title": "Vitamin K and Glucose Metabolism in Adults at Risk for Diabetes (Vita-K 'n' Adults Study)",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Insulin Resistance",
        "Insulin Sensitivity",
        "Beta-Cell Dysfunction",
        "Prediabetes"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Low-Dose Vitamin K2 Supplement (menaquinone-7; 90-mcg/d)",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "High-Dose Vitamin K2 Supplement (menaquinone-7; 180-mcg/d)",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Augusta 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": 30,
      "start_date": "2015-02",
      "completion_date": "2020-06-30",
      "has_results": false,
      "last_update_posted_date": "2019-11-20",
      "last_synced_at": "2026-09-09T10:49:31.045Z",
      "location_count": 1,
      "location_summary": "Augusta, Georgia",
      "locations": [
        {
          "city": "Augusta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02366481"
    }
  ]
}