{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+400+mg",
    "query": {
      "intervention": "Placebo 400 mg"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1031,
    "total_pages": 104,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+400+mg&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-16T18:24:40.358Z",
  "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": "NCT00465959",
      "title": "Study of Trospium Chloride Inhalation Powder (TrIP) in Patients With Chronic Obstructive Pulmonary Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Chronic Obstructive Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "trospium chloride inhalation powder (TrIP)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Endo USA Inc., a Keenova Therapeutics Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 24,
      "start_date": "2007-04",
      "completion_date": "2007-06",
      "has_results": false,
      "last_update_posted_date": "2013-12-27",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 1,
      "location_summary": "Spartanburg, South Carolina",
      "locations": [
        {
          "city": "Spartanburg",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00465959"
    },
    {
      "nct_id": "NCT00563706",
      "title": "Study Evaluating Vabicaserin in Subjects With Schizophrenia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Schizophrenia"
      ],
      "interventions": [
        {
          "name": "vabicaserin",
          "type": "DRUG"
        },
        {
          "name": "risperidone",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 199,
      "start_date": "2007-12",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2014-03-20",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 32,
      "location_summary": "Little Rock, Arkansas • Cerritos, California • Escondido, California + 27 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Cerritos",
          "state": "California"
        },
        {
          "city": "Escondido",
          "state": "California"
        },
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Glendale",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00563706"
    },
    {
      "nct_id": "NCT01510158",
      "title": "Combining Lesinurad With Allopurinol in Inadequate Responders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Gout"
      ],
      "interventions": [
        {
          "name": "Lesinurad",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Allopurinol",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ardea Biosciences, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 607,
      "start_date": "2012-01",
      "completion_date": "2014-08",
      "has_results": true,
      "last_update_posted_date": "2016-08-18",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 165,
      "location_summary": "Athens, Alabama • Birmingham, Alabama • Gulf Shores, Alabama + 139 more",
      "locations": [
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01510158"
    },
    {
      "nct_id": "NCT05287113",
      "title": "Study of Retinfanlimab in Combination With INCAGN02385 and INCAGN02390 as First-Line Treatment in Participants With PD-L1-Positive (CPS ≥ 1) Recurrent/Metastatic Squamous Cell Carcinoma of the Head and Neck",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "Retifanlimab",
          "type": "DRUG"
        },
        {
          "name": "INCAGN02385",
          "type": "DRUG"
        },
        {
          "name": "INCAGN02390",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Incyte Biosciences International Sàrl",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 176,
      "start_date": "2022-11-14",
      "completion_date": "2026-07-10",
      "has_results": true,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 24,
      "location_summary": "Scottsdale, Arizona • Duarte, California • Irvine, California + 20 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Lancaster",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05287113"
    },
    {
      "nct_id": "NCT00300885",
      "title": "A Randomized Controlled Trial Comparing Safety and Efficacy of Carboplatin and Paclitaxel Plus or Minus Sorafenib (BAY 43-9006) in Chemonaive Patients With Stage IIIB-IV Non-Small Cell Lung Cancer (NSCLC)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Carcinoma, Non-Small Cell Lung"
      ],
      "interventions": [
        {
          "name": "Nexavar (Sorafenib, BAY43-9006) + carboplatin + paclitaxel",
          "type": "DRUG"
        },
        {
          "name": "Carboplatin plus Paclitaxel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 926,
      "start_date": "2006-02",
      "completion_date": "2009-02",
      "has_results": true,
      "last_update_posted_date": "2014-11-04",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 80,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Tucson, Arizona + 69 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Springdale",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00300885"
    },
    {
      "nct_id": "NCT03252015",
      "title": "A Study of Multiple Doses of Lasmiditan in Healthy Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Probe Drug Cocktail",
          "type": "DRUG"
        },
        {
          "name": "Lasmiditan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 70,
      "start_date": "2017-08-15",
      "completion_date": "2018-01-02",
      "has_results": true,
      "last_update_posted_date": "2020-01-10",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 1,
      "location_summary": "Daytona Beach, Florida",
      "locations": [
        {
          "city": "Daytona Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03252015"
    },
    {
      "nct_id": "NCT04452344",
      "title": "Opioid Analgesic Reduction Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Opioid Use"
      ],
      "interventions": [
        {
          "name": "opioid-containing analgesic",
          "type": "DRUG"
        },
        {
          "name": "two over-the-counter analgesics",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1815,
      "start_date": "2021-01-04",
      "completion_date": "2023-12-24",
      "has_results": true,
      "last_update_posted_date": "2026-08-31",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 5,
      "location_summary": "Chicago, Illinois • Baltimore, Maryland • Ann Arbor, Michigan + 2 more",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Newark",
          "state": "New Jersey"
        },
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04452344"
    },
    {
      "nct_id": "NCT01417052",
      "title": "A Study to Determine the Safety and Efficacy of LX3305 in Subjects With Active Rheumatoid Arthritis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Rheumatoid Arthritis"
      ],
      "interventions": [
        {
          "name": "50 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "100 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "150 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "200 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "250 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "300 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "400 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "250 mg LX3305 BID",
          "type": "DRUG"
        },
        {
          "name": "500 mg LX3305 QD",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lexicon Pharmaceuticals",
      "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": 10,
      "start_date": "2011-09",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2012-08-02",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01417052"
    },
    {
      "nct_id": "NCT01281306",
      "title": "An 8-week Study to Evaluate the Dose Response of AHU377 in Combination With Valsartan 320 mg in Patients With Mild-to-moderate Systolic Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Systolic Hypertension"
      ],
      "interventions": [
        {
          "name": "LCZ696",
          "type": "DRUG"
        },
        {
          "name": "Valsartan",
          "type": "DRUG"
        },
        {
          "name": "AHU377",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Novartis Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 910,
      "start_date": "2011-01",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2016-01-29",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 19,
      "location_summary": "Clearwater, Florida • Chicago, Illinois • Metairie, Louisiana + 12 more",
      "locations": [
        {
          "city": "Clearwater",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        },
        {
          "city": "Belzoni",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01281306"
    },
    {
      "nct_id": "NCT07635862",
      "title": "Clinical Trial Evaluating the Effects of Ganaxolone in Children With Autism",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Autism in Children",
        "Autistic Disorder in Children and Adolescents",
        "Autism Spectrum Disorder"
      ],
      "interventions": [
        {
          "name": "Ganaxolone (Ztalmy)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 66,
      "start_date": "2027-01-01",
      "completion_date": "2030-01-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-09",
      "last_synced_at": "2026-09-16T18:24:40.358Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07635862"
    }
  ]
}