{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28two-dose%29",
    "query": {
      "intervention": "Placebo (two-dose)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 2039,
    "total_pages": 204,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28two-dose%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T15:43:29.310Z",
  "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": "NCT03068910",
      "title": "Hyperandrogenemia and Altered Day-night LH Pulse Patterns",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Hyperandrogenism",
        "Polycystic Ovary Syndrome",
        "Puberty"
      ],
      "interventions": [
        {
          "name": "Micronized progesterone",
          "type": "DRUG"
        },
        {
          "name": "Spironolactone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Virginia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "17 Years",
        "sex": "FEMALE",
        "summary": "10 Years to 17 Years · Female only"
      },
      "enrollment_count": 32,
      "start_date": "2016-07-21",
      "completion_date": "2025-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-08-05",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 1,
      "location_summary": "Charlottesville, Virginia",
      "locations": [
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03068910"
    },
    {
      "nct_id": "NCT04505904",
      "title": "Oxytocin and Approach-avoid in Grief",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prolonged Grief Disorder",
        "Bereavement"
      ],
      "interventions": [
        {
          "name": "Syntocinon",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Arizona",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "55 Years to 80 Years"
      },
      "enrollment_count": 44,
      "start_date": "2015-03-20",
      "completion_date": "2017-05-12",
      "has_results": true,
      "last_update_posted_date": "2025-03-04",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04505904"
    },
    {
      "nct_id": "NCT01147458",
      "title": "A Study Of The Safety And Efficacy Of PF-04191834 In Patients With Osteoarthritis Of The Knee",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "PF-04191834",
          "type": "DRUG"
        },
        {
          "name": "PF-04191834 placebo",
          "type": "DRUG"
        },
        {
          "name": "Naproxen placebo",
          "type": "DRUG"
        },
        {
          "name": "Naproxen",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "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": 190,
      "start_date": "2010-07",
      "completion_date": "2011-02",
      "has_results": true,
      "last_update_posted_date": "2013-06-06",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 25,
      "location_summary": "Peoria, Arizona • Phoenix, Arizona • Anaheim, California + 20 more",
      "locations": [
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Carmichael",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01147458"
    },
    {
      "nct_id": "NCT02808208",
      "title": "Autologous Adipose Derived Mesenchymal Stem Cells (AMSC) in Reducing Hemodialysis Arteriovenous Fistula Failure",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "End Stage Renal Disease (ESRD)",
        "Vascular Access Complication"
      ],
      "interventions": [
        {
          "name": "Single Application of Adipose Derived Mesenchymal Stem Cells (AMSC)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Two Applications of Adipose Derived Mesenchymal Stem Cells (AMSC)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 74,
      "start_date": "2017-06-07",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02808208"
    },
    {
      "nct_id": "NCT02837952",
      "title": "A Study of Ibuprofen (IBU) 250mg/APAP 500mg In The Treatment Of Post-Surgical Dental Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pain"
      ],
      "interventions": [
        {
          "name": "FDC IBU/APAP 250 mg/500 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 123,
      "start_date": "2016-08-31",
      "completion_date": "2017-02-01",
      "has_results": true,
      "last_update_posted_date": "2018-03-05",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02837952"
    },
    {
      "nct_id": "NCT01236040",
      "title": "Immunogenicity and Safety of Pandemic Influenza Vaccines in Adults Aged 18 - 49 Years Old",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "GSK Biologicals' investigational vaccine GSK2590066A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GSK Biologicals' investigational vaccine GSK2592984A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GSK Biologicals' investigational vaccine GSK2340274A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "GSK Biologicals' investigational vaccine GSK2340273A",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "49 Years",
        "sex": "ALL",
        "summary": "18 Years to 49 Years"
      },
      "enrollment_count": 521,
      "start_date": "2010-11-29",
      "completion_date": "2012-08-20",
      "has_results": false,
      "last_update_posted_date": "2017-05-10",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 4,
      "location_summary": "Anaheim, California • Stockbridge, Georgia • Lenexa, Kansas + 1 more",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Stockbridge",
          "state": "Georgia"
        },
        {
          "city": "Lenexa",
          "state": "Kansas"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01236040"
    },
    {
      "nct_id": "NCT04752774",
      "title": "A Study to Assess the Safety and Efficacy of IPN10200 in Adult Participants With Upper Limb Spasticity.",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Spasticity"
      ],
      "interventions": [
        {
          "name": "Corabotase",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Dysport",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG"
      ],
      "sponsor": "Ipsen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 240,
      "start_date": "2021-04-29",
      "completion_date": "2029-03-30",
      "has_results": false,
      "last_update_posted_date": "2026-07-28",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 5,
      "location_summary": "Downey, California • Overland Park, Kansas • Farmington Hills, Michigan + 2 more",
      "locations": [
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "Farmington Hills",
          "state": "Michigan"
        },
        {
          "city": "Elkins Park",
          "state": "Pennsylvania"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04752774"
    },
    {
      "nct_id": "NCT01294176",
      "title": "Lipoic Acid as a Treatment for Acute Optic Neuritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Optic Neuritis"
      ],
      "interventions": [
        {
          "name": "Lipoic Acid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oregon Health and Science 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": 31,
      "start_date": "2011-01",
      "completion_date": "2016-11",
      "has_results": false,
      "last_update_posted_date": "2019-04-26",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01294176"
    },
    {
      "nct_id": "NCT03018340",
      "title": "Study to Evaluate the Efficacy and Safety of Adjunctive Pimavanserin in Major Depressive Disorder (CLARITY)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Adjunctive Treatment of Major Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "Pimavanserin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "ACADIA Pharmaceuticals Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 207,
      "start_date": "2016-12",
      "completion_date": "2018-10",
      "has_results": true,
      "last_update_posted_date": "2019-11-14",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 36,
      "location_summary": "Birmingham, Alabama • Rogers, Arkansas • Garden Grove, California + 31 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "National City",
          "state": "California"
        },
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03018340"
    },
    {
      "nct_id": "NCT01879410",
      "title": "A Study to Compare the Efficacy and Safety of Umeclidinium/Vilanterol With Fluticasone Propionate/Salmeterol in Subjects With Chronic Obstructive Pulmonary Disease (COPD)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive"
      ],
      "interventions": [
        {
          "name": "UMEC/VI Inhalation Powder 62.5/25 mcg via NDPI",
          "type": "DRUG"
        },
        {
          "name": "FSC Inhalation Powder 250/50 mcg via ACCUHALER/DISKUS",
          "type": "DRUG"
        },
        {
          "name": "Placebo DISKUS",
          "type": "DRUG"
        },
        {
          "name": "Placebo NDPI",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 700,
      "start_date": "2013-06-13",
      "completion_date": "2014-01-09",
      "has_results": true,
      "last_update_posted_date": "2017-11-08",
      "last_synced_at": "2026-09-12T15:43:29.310Z",
      "location_count": 15,
      "location_summary": "Tucson, Arizona • Newport Beach, California • Riverside, California + 12 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Coeur d'Alene",
          "state": "Idaho"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01879410"
    }
  ]
}