{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+for+12+weeks",
    "query": {
      "intervention": "Placebo for 12 weeks"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 2521,
    "total_pages": 253,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+for+12+weeks&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T07:14:21.768Z",
  "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": "NCT00273650",
      "title": "Efficacy Study of Subcutaneous Methyl-B12 in Children With Autism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Autistic Disorder"
      ],
      "interventions": [
        {
          "name": "methylcobalamin",
          "type": "DRUG"
        },
        {
          "name": "saline placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Years",
        "maximum_age": "8 Years",
        "sex": "ALL",
        "summary": "3 Years to 8 Years"
      },
      "enrollment_count": 30,
      "start_date": "2005-07",
      "completion_date": "2009-08",
      "has_results": false,
      "last_update_posted_date": "2019-10-09",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00273650"
    },
    {
      "nct_id": "NCT05629208",
      "title": "Study of Edecesertib in Participants With Cutaneous Lupus Erythematosus (CLE)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cutaneous Lupus Erythematosus (CLE)"
      ],
      "interventions": [
        {
          "name": "Edecesertib",
          "type": "DRUG"
        },
        {
          "name": "Edecesertib Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 20,
      "start_date": "2023-04-17",
      "completion_date": "2026-01-14",
      "has_results": false,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 12,
      "location_summary": "Phoenix, Arizona • Fremont, California • Aurora, Colorado + 9 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Fremont",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05629208"
    },
    {
      "nct_id": "NCT02147197",
      "title": "A Study of the Efficacy and Safety of a 3-month Treatment Course of Ulipristal Acetate for the Treatment of Abnormal Uterine Bleeding Associated With Leiomyomas",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Leiomyoma",
        "Uterine Hemorrhage"
      ],
      "interventions": [
        {
          "name": "Ulipristal acetate (UPA)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Allergan",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 157,
      "start_date": "2014-03-31",
      "completion_date": "2016-03-29",
      "has_results": true,
      "last_update_posted_date": "2019-04-30",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 28,
      "location_summary": "Tucson, Arizona • San Diego, California • Denver, Colorado + 23 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Lakewood",
          "state": "Colorado"
        },
        {
          "city": "Milford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02147197"
    },
    {
      "nct_id": "NCT04193176",
      "title": "Efficacy and Safety of Gefapixant (MK-7264) in Women With Chronic Cough and Stress Urinary Incontinence (MK-7264-042)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Chronic Cough"
      ],
      "interventions": [
        {
          "name": "Gefapixant",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 376,
      "start_date": "2020-05-10",
      "completion_date": "2022-09-02",
      "has_results": true,
      "last_update_posted_date": "2024-11-05",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 19,
      "location_summary": "Paramount, California • Jupiter, Florida • Miami, Florida + 16 more",
      "locations": [
        {
          "city": "Paramount",
          "state": "California"
        },
        {
          "city": "Jupiter",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Sweetwater",
          "state": "Florida"
        },
        {
          "city": "Winter Park",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04193176"
    },
    {
      "nct_id": "NCT03911713",
      "title": "A Phase 2 Study to Evaluate Efficacy and Safety of VX-561 in Subjects Aged 18 Years and Older With Cystic Fibrosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "VX-561",
          "type": "DRUG"
        },
        {
          "name": "IVA",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vertex Pharmaceuticals Incorporated",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 77,
      "start_date": "2019-04-17",
      "completion_date": "2020-08-20",
      "has_results": true,
      "last_update_posted_date": "2022-01-25",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 30,
      "location_summary": "Birmingham, Alabama • Tucson, Arizona • Long Beach, California + 25 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03911713"
    },
    {
      "nct_id": "NCT02219685",
      "title": "Ledipasvir/Sofosbuvir Fixed-Dose Combination on Cerebral Metabolism and Neurocognition in Treatment-Naive and Treatment-Experienced Participants With Chronic Genotype 1 HCV Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hepatitis C Virus Infection"
      ],
      "interventions": [
        {
          "name": "LDV/SOF",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 40,
      "start_date": "2014-08",
      "completion_date": "2016-04",
      "has_results": true,
      "last_update_posted_date": "2018-11-16",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02219685"
    },
    {
      "nct_id": "NCT00974376",
      "title": "Gabapentin Treatment of Cannabis Dependence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cannabis Dependence",
        "Cannabis Withdrawal",
        "Cognitive Deficits"
      ],
      "interventions": [
        {
          "name": "gabapentin 1200mg/day",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Manual-guided behavioral counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "The Scripps Research Institute",
      "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": 150,
      "start_date": "2009-11-04",
      "completion_date": "2016-05-19",
      "has_results": true,
      "last_update_posted_date": "2017-06-06",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00974376"
    },
    {
      "nct_id": "NCT02766478",
      "title": "Genistein Supplementation to Mitigate Cardiometabolic Dysfunction in Patients Undergoing Androgen Deprivation Therapy for Prostate Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Genistein",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 10,
      "start_date": "2017-10-16",
      "completion_date": "2021-07-23",
      "has_results": true,
      "last_update_posted_date": "2022-09-27",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02766478"
    },
    {
      "nct_id": "NCT05387876",
      "title": "Vitamin D Intervention and Associated Changes in the Gut Microbiome and Vitamin D Levels in Healthy Adults",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Vitamin D intervention",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo intervention",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Baylor University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 43,
      "start_date": "2022-02-14",
      "completion_date": "2023-02-28",
      "has_results": false,
      "last_update_posted_date": "2022-05-24",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 1,
      "location_summary": "Waco, Texas",
      "locations": [
        {
          "city": "Waco",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05387876"
    },
    {
      "nct_id": "NCT04706520",
      "title": "Chronic Consumption of Vinegar on Visceral Adiposity in Overweight Adults (VAnish)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Body Composition"
      ],
      "interventions": [
        {
          "name": "Study Beverage Consumption",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Pennington Biomedical Research Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 24,
      "start_date": "2021-02-10",
      "completion_date": "2021-11-04",
      "has_results": false,
      "last_update_posted_date": "2021-11-16",
      "last_synced_at": "2026-09-03T07:14:21.768Z",
      "location_count": 1,
      "location_summary": "Baton Rouge, Louisiana",
      "locations": [
        {
          "city": "Baton Rouge",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04706520"
    }
  ]
}