{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28single-dose%29&page=3",
    "query": {
      "intervention": "Placebo (single-dose)",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 4603,
    "total_pages": 461,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28single-dose%29&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+%28single-dose%29&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-07T14:47:42.479Z",
  "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": "NCT01476124",
      "title": "Drug Drug Interaction Study With Gabapentin Enacarbil and Morphine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Restless Legs Syndrome"
      ],
      "interventions": [
        {
          "name": "morphine Placebo",
          "type": "DRUG"
        },
        {
          "name": "GEn 600 mg",
          "type": "DRUG"
        },
        {
          "name": "Morphine",
          "type": "DRUG"
        },
        {
          "name": "GEn Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "XenoPort, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 18,
      "start_date": "2011-08",
      "completion_date": "2011-10",
      "has_results": false,
      "last_update_posted_date": "2013-07-16",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01476124"
    },
    {
      "nct_id": "NCT06625489",
      "title": "A Study to Evaluate the Safety, Tolerability and Blood Levels of GSK3915393 Administered to Healthy Participants of Chinese, Japanese and European Ancestry and to Assess Effects of GSK3915393 on Nintedanib",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Idiopathic Pulmonary Fibrosis"
      ],
      "interventions": [
        {
          "name": "Part A: Placebo",
          "type": "DRUG"
        },
        {
          "name": "Nintedanib",
          "type": "DRUG"
        },
        {
          "name": "GSK3915393",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 50,
      "start_date": "2024-10-07",
      "completion_date": "2024-11-25",
      "has_results": false,
      "last_update_posted_date": "2025-02-18",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 2,
      "location_summary": "Cypress, California • Las Vegas, Nevada",
      "locations": [
        {
          "city": "Cypress",
          "state": "California"
        },
        {
          "city": "Las Vegas",
          "state": "Nevada"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06625489"
    },
    {
      "nct_id": "NCT01429740",
      "title": "A Study Of The Safety, Tolerability And Pharmacokinetics Of Single Doses Of PF-05180999 In Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "PF-05180999",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 29,
      "start_date": "2011-08",
      "completion_date": "2011-12",
      "has_results": false,
      "last_update_posted_date": "2012-04-12",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01429740"
    },
    {
      "nct_id": "NCT00434083",
      "title": "To Evaluate the Safety and Efficacy of Trexima in the Acute Treatment of Migrane Headaches",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Migraine Headaches"
      ],
      "interventions": [
        {
          "name": "sumatriptan",
          "type": "DRUG"
        },
        {
          "name": "naproxen sodium",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "POZEN",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 1200,
      "start_date": "2004-07",
      "completion_date": "2005-01",
      "has_results": false,
      "last_update_posted_date": "2007-02-12",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 2,
      "location_summary": "Chapel Hill, North Carolina • Nashville, Tennessee",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00434083"
    },
    {
      "nct_id": "NCT00903253",
      "title": "A Double-Blind, Placebo Controlled, Single, Escalating Dose Study to Evaluate the Preliminary Pharmacokinetics, Safety and Tolerability of LNK-754 in Healthy Elderly Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Elderly Volunteers"
      ],
      "interventions": [
        {
          "name": "LNK-754",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Link Medicine Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "60 Years to 75 Years"
      },
      "enrollment_count": 40,
      "start_date": "2009-05",
      "completion_date": "2009-09",
      "has_results": false,
      "last_update_posted_date": "2009-09-10",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00903253"
    },
    {
      "nct_id": "NCT04749745",
      "title": "Effects of L-theanine on Motor Cortex Excitability in Healthy Subjects: A Paired-Pulse TMS Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Cortical Excitability",
        "Psychiatric Disorder"
      ],
      "interventions": [
        {
          "name": "L-theanine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Butler Hospital",
      "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": 11,
      "start_date": "2020-06-09",
      "completion_date": "2021-05-31",
      "has_results": true,
      "last_update_posted_date": "2021-09-23",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04749745"
    },
    {
      "nct_id": "NCT06148272",
      "title": "A Study of LY3971297 in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy",
        "Obesity",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "LY3971297",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "LY3971297 IV",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "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": 200,
      "start_date": "2023-12-07",
      "completion_date": "2026-08-18",
      "has_results": false,
      "last_update_posted_date": "2026-09-21",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 3,
      "location_summary": "Anaheim, California • Miami, Florida • San Antonio, Texas",
      "locations": [
        {
          "city": "Anaheim",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06148272"
    },
    {
      "nct_id": "NCT02178995",
      "title": "Methylphenidate Treatment of Attention Deficits in Epilepsy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Epilepsy",
        "Cognitive Deficits",
        "Attention Deficits"
      ],
      "interventions": [
        {
          "name": "Methylphenidate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Kimford Jay Meador",
      "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": 55,
      "start_date": "2014-08",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2017-05-30",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02178995"
    },
    {
      "nct_id": "NCT02070939",
      "title": "Study To Evaluate Safety And Tolerability Of Single And Multiple Ascending Doses Of PF- 06260414 In Healthy Western And Japanese Male Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "PF-06260414",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "MALE",
        "summary": "21 Years to 50 Years · Male only"
      },
      "enrollment_count": 72,
      "start_date": "2014-02",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2018-11-14",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02070939"
    },
    {
      "nct_id": "NCT00805701",
      "title": "Study Assessing The Efficacy And Safety Of Avodart (Dutasteride) At Improving Urinary Symptoms In Men With Prostate Cancer Who Are Undergoing Seed Implantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "avodart",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bay State Clinical Trials, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "90 Years",
        "sex": "MALE",
        "summary": "35 Years to 90 Years · Male only"
      },
      "enrollment_count": 40,
      "start_date": "2009-01",
      "completion_date": "2014-04",
      "has_results": false,
      "last_update_posted_date": "2014-05-14",
      "last_synced_at": "2026-10-07T14:47:42.479Z",
      "location_count": 1,
      "location_summary": "Watertown, Massachusetts",
      "locations": [
        {
          "city": "Watertown",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00805701"
    }
  ]
}