{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Single+Ascending+Dose+of+Placebo",
    "query": {
      "intervention": "Single Ascending Dose of Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 1154,
    "total_pages": 116,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Single+Ascending+Dose+of+Placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-29T00:36:27.296Z",
  "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": "NCT03698305",
      "title": "A Study in Healthy Adult Volunteers to Assess the Safety and Pharmacokinetics of an Investigational Imaging Product",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Subjects"
      ],
      "interventions": [
        {
          "name": "ASP5354",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Astellas Pharma Global Development, Inc.",
      "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": 30,
      "start_date": "2018-10-25",
      "completion_date": "2019-05-20",
      "has_results": false,
      "last_update_posted_date": "2024-10-16",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "Daytona Beach, Florida",
      "locations": [
        {
          "city": "Daytona Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03698305"
    },
    {
      "nct_id": "NCT07344948",
      "title": "Single and Multiple Ascending Doses of NTX-253 in Healthy Participants and Participants With Stable Schizophrenia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Healthy Participants",
        "Schizophrenia Diagnosis"
      ],
      "interventions": [
        {
          "name": "NTX-253",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Neurosterix",
      "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": 73,
      "start_date": "2025-10-03",
      "completion_date": "2026-05",
      "has_results": false,
      "last_update_posted_date": "2026-01-15",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "Los Alamitos, California",
      "locations": [
        {
          "city": "Los Alamitos",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07344948"
    },
    {
      "nct_id": "NCT02071121",
      "title": "Single Ascending Dose Study of the Safety, Tolerability, and Pharmacokinetics of BIIB061 in Healthy Adult Volunteers Including Absolute Bioavailability and Food Effect",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "BIIB061",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "14C-BIIB061",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Biogen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "20 Years to 55 Years"
      },
      "enrollment_count": 39,
      "start_date": "2013-12",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2015-02-02",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 2,
      "location_summary": "Evansville, Indiana • Madison, Wisconsin",
      "locations": [
        {
          "city": "Evansville",
          "state": "Indiana"
        },
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02071121"
    },
    {
      "nct_id": "NCT02496143",
      "title": "A Safety and PK Study of EC-18 in Healthy Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Chemotherapy-induced Neutropenia"
      ],
      "interventions": [
        {
          "name": "EC-18",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Enzychem Lifesciences Corporation",
      "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": 33,
      "start_date": "2015-07",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-01-11",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "Raleigh, North Carolina",
      "locations": [
        {
          "city": "Raleigh",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02496143"
    },
    {
      "nct_id": "NCT04139226",
      "title": "A Study to Evaluate the Safety, Tolerability Pharmacokinetics, and Pharmacodynamics of a New Spray Dried Dispersion (SDD) Formulation of CC-11050 After Single Dose of CC-11050 and to Evaluate the Pharmacokinetics of CC-11050 Under Fasted and Fed Conditions and After Coadministration With Omeprazole",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "CC-11050",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amgen",
      "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": 44,
      "start_date": "2019-08-28",
      "completion_date": "2020-02-27",
      "has_results": false,
      "last_update_posted_date": "2020-06-22",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "San Antonio, Texas",
      "locations": [
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04139226"
    },
    {
      "nct_id": "NCT04041648",
      "title": "Single Ascending Dose Study for Evaluation of Safety, Tolerability and Pharmacokinetics of L606",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "L606 (Liposomal Treprostinil) Inhalation Solution 51ug",
          "type": "DRUG"
        },
        {
          "name": "L606 Inhalation System",
          "type": "DEVICE"
        },
        {
          "name": "Placebo Solution",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Pharmosa Biopharm Inc.",
      "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": 52,
      "start_date": "2018-11-09",
      "completion_date": "2020-05-12",
      "has_results": false,
      "last_update_posted_date": "2025-08-05",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04041648"
    },
    {
      "nct_id": "NCT01933763",
      "title": "An Ascending Single-Dose Study of the Safety, Tolerability and Bioeffect of REGN1193",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "REGN1193",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 56,
      "start_date": "2013-08",
      "completion_date": "2015-01",
      "has_results": false,
      "last_update_posted_date": "2015-03-13",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "Dallas, Texas",
      "locations": [
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01933763"
    },
    {
      "nct_id": "NCT05901883",
      "title": "First-in-human, Single Ascending Dose Study of CEL383 in Healthy Adult Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "CEL383",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Celsius Therapeutics, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "19 Years to 64 Years"
      },
      "enrollment_count": 48,
      "start_date": "2023-06-20",
      "completion_date": "2024-01-17",
      "has_results": false,
      "last_update_posted_date": "2024-02-09",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "Lincoln, Nebraska",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05901883"
    },
    {
      "nct_id": "NCT05877053",
      "title": "A Single and Multiple Ascending Dose Study of CK-4021586 in Healthy Adult Participants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "CK-4021586",
          "type": "DRUG"
        },
        {
          "name": "Placebo for CK-4021586",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cytokinetics",
      "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": 102,
      "start_date": "2023-05-09",
      "completion_date": "2024-11-20",
      "has_results": false,
      "last_update_posted_date": "2025-05-01",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 1,
      "location_summary": "Tempe, Arizona",
      "locations": [
        {
          "city": "Tempe",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05877053"
    },
    {
      "nct_id": "NCT05136053",
      "title": "A Study Investigating Lu AG22515 in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Participants"
      ],
      "interventions": [
        {
          "name": "Lu AG22515",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Immune System Activator",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "H. Lundbeck A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "19 Years to 60 Years"
      },
      "enrollment_count": 58,
      "start_date": "2022-03-18",
      "completion_date": "2023-08-05",
      "has_results": false,
      "last_update_posted_date": "2023-08-28",
      "last_synced_at": "2026-09-29T00:36:27.296Z",
      "location_count": 2,
      "location_summary": "Long Beach, California • Secaucus, New Jersey",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Secaucus",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05136053"
    }
  ]
}