{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=4+placebo&page=2",
    "query": {
      "intervention": "4 placebo",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=4+placebo&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T22:44:20.254Z",
  "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": "NCT02026232",
      "title": "Metabolic Effects of Hydroxychloroquine",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "Hydroxychloroquine",
          "type": "DRUG"
        },
        {
          "name": "Hydroxychloroquine Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 21,
      "start_date": "2012-03",
      "completion_date": "2022-12-15",
      "has_results": true,
      "last_update_posted_date": "2023-12-28",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02026232"
    },
    {
      "nct_id": "NCT00536484",
      "title": "Fesoterodine Flexible Dose Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Overactive Bladder"
      ],
      "interventions": [
        {
          "name": "Fesoterodine",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 896,
      "start_date": "2007-08",
      "completion_date": "2008-03",
      "has_results": true,
      "last_update_posted_date": "2009-09-15",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 95,
      "location_summary": "Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 81 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Chandler",
          "state": "Arizona"
        },
        {
          "city": "Peoria",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Rancho Cordova",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00536484"
    },
    {
      "nct_id": "NCT00599248",
      "title": "Safety Study of TissueGene-C in Degenerative Joint Disease of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "TissueGene-C",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Kolon TissueGene, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12,
      "start_date": "2007-01",
      "completion_date": "2010-05",
      "has_results": true,
      "last_update_posted_date": "2017-07-07",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Arlington, Virginia",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Arlington",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00599248"
    },
    {
      "nct_id": "NCT06077487",
      "title": "Ketamine-assisted Therapy for Advanced GI Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Pancreatic Ductal Adenocarcinoma",
        "Pain, Acute",
        "Gastrointestinal Cancers",
        "Demoralization"
      ],
      "interventions": [
        {
          "name": "Ketamine",
          "type": "DRUG"
        },
        {
          "name": "Ketamine Injectable Product",
          "type": "DRUG"
        },
        {
          "name": "Meaning and Purpose therapy",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Brian Anderson, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1,
      "start_date": "2024-05-17",
      "completion_date": "2025-01-31",
      "has_results": true,
      "last_update_posted_date": "2025-05-21",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06077487"
    },
    {
      "nct_id": "NCT05167721",
      "title": "Randomized Double-Blind Placebo-Controlled Adaptive Design Trial Of Intrathecally Administered Autologous Mesenchymal Stem Cells In Multiple System Atrophy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Multiple System Atrophy"
      ],
      "interventions": [
        {
          "name": "Autologous Mesenchymal Stem Cells",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "30 Years to 70 Years"
      },
      "enrollment_count": 71,
      "start_date": "2021-12-15",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-06-12",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05167721"
    },
    {
      "nct_id": "NCT03648385",
      "title": "Effects of DHEA in Pulmonary Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "DHEA tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Rhode Island Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 26,
      "start_date": "2019-01-09",
      "completion_date": "2024-12-30",
      "has_results": true,
      "last_update_posted_date": "2025-11-05",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03648385"
    },
    {
      "nct_id": "NCT06219915",
      "title": "Neurobiological Drivers of Mobility Resilience: The Dopaminergic System - Placebo-Controlled Arm",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Parkinsonian Signs in Older Persons"
      ],
      "interventions": [
        {
          "name": "Carbidopa 25 mg",
          "type": "DRUG"
        },
        {
          "name": "Carbidopa-Levodopa 25/100 mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo 1",
          "type": "DRUG"
        },
        {
          "name": "Placebo 2",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 13,
      "start_date": "2024-03-15",
      "completion_date": "2024-05-30",
      "has_results": true,
      "last_update_posted_date": "2025-06-17",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 2,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06219915"
    },
    {
      "nct_id": "NCT00105521",
      "title": "Sarizotan in Participants With Parkinson's Disease Suffering From Treatment Associated Dyskinesia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Parkinson's Disease",
        "Dyskinesia"
      ],
      "interventions": [
        {
          "name": "Sarizotan",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "EMD Serono",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 398,
      "start_date": "2004-09-30",
      "completion_date": "2006-03-31",
      "has_results": true,
      "last_update_posted_date": "2018-04-02",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 32,
      "location_summary": "Phoenix, Arizona • Scottsdale, Arizona • Fayetteville, Arkansas + 25 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Fayetteville",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00105521"
    },
    {
      "nct_id": "NCT02205814",
      "title": "Fasitibant Intra-articular Injection in Patients With Symptomatic Osteoarthritis of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Knee Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Fasitibant- low dose",
          "type": "DRUG"
        },
        {
          "name": "Fasitibant- intermediate dose",
          "type": "DRUG"
        },
        {
          "name": "Fasitibant- high dose",
          "type": "DRUG"
        },
        {
          "name": "Placebo comparator",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Menarini Group",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 436,
      "start_date": "2014-04",
      "completion_date": "2015-01",
      "has_results": true,
      "last_update_posted_date": "2015-11-03",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 9,
      "location_summary": "Tucson, Arizona • Englewood, Colorado • DeLand, Florida + 5 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Englewood",
          "state": "Colorado"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02205814"
    },
    {
      "nct_id": "NCT00623649",
      "title": "Safety,Tolerability and Pharmacokinetics of Multiple Ascending Doses of VCH 916 in Subjects With Chronic Hep C Infection",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HCV Infection"
      ],
      "interventions": [
        {
          "name": "VCH 916",
          "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": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 42,
      "start_date": "2007-11",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2014-04-04",
      "last_synced_at": "2026-09-26T22:44:20.254Z",
      "location_count": 2,
      "location_summary": "Dallas, Texas • San Antonio, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00623649"
    }
  ]
}