{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Aspirin-Placebo",
    "query": {
      "intervention": "Aspirin-Placebo"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 182,
    "total_pages": 19,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Aspirin-Placebo&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-14T15:00:35.589Z",
  "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": "NCT01552798",
      "title": "Efficacy of a Single Dose of Aspirin vs. Acetaminophen in Tension Type Headache",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Headache"
      ],
      "interventions": [
        {
          "name": "Acetylsalicylic acid (Aspirin, BAY1019036)",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "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": 9,
      "start_date": "2012-03-12",
      "completion_date": "2012-06-04",
      "has_results": false,
      "last_update_posted_date": "2018-12-19",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 1,
      "location_summary": "Kalamazoo, Michigan",
      "locations": [
        {
          "city": "Kalamazoo",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01552798"
    },
    {
      "nct_id": "NCT03766581",
      "title": "A Study on BMS-986177 for the Prevention of a Stroke in Patients Receiving Aspirin and Clopidogrel",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Acute Ischemic Stroke",
        "Transient Ischemic Attack (TIA)"
      ],
      "interventions": [
        {
          "name": "BMS-986177",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Clopidogrel",
          "type": "DRUG"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 2366,
      "start_date": "2019-01-27",
      "completion_date": "2022-03-31",
      "has_results": true,
      "last_update_posted_date": "2023-06-12",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 66,
      "location_summary": "Birmingham, Alabama • Glendale, California • Long Beach, California + 51 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03766581"
    },
    {
      "nct_id": "NCT06468202",
      "title": "Effectiveness of Two Aspirin Doses for Prevention of Hypertensive Disorders of Pregnancy: ASPIRIN TRIAL",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hypertensive Disorders of Pregnancy",
        "Preeclampsia",
        "Gestational Hypertension"
      ],
      "interventions": [
        {
          "name": "Aspirin 81 mg",
          "type": "DRUG"
        },
        {
          "name": "Aspirin 162 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "35 Years",
        "sex": "FEMALE",
        "summary": "14 Years to 35 Years · Female only"
      },
      "enrollment_count": 10742,
      "start_date": "2024-10-18",
      "completion_date": "2030-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-04",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 16,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • San Francisco, California + 13 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Jackson",
          "state": "Mississippi"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06468202"
    },
    {
      "nct_id": "NCT00783614",
      "title": "Aspirin and Antiretroviral Therapy in HIV Infected Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [
        {
          "name": "Aspirin 325mg",
          "type": "DRUG"
        },
        {
          "name": "Antiretroviral therapy (ART)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hennepin Healthcare Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 22,
      "start_date": "2008-10",
      "completion_date": "2010-06",
      "has_results": true,
      "last_update_posted_date": "2017-11-21",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00783614"
    },
    {
      "nct_id": "NCT00790452",
      "title": "Aspirin Prophylaxis for Venous Thromboembolism in Glioblastoma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Glioblastoma"
      ],
      "interventions": [
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "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": "2008-11",
      "completion_date": "2009-10",
      "has_results": true,
      "last_update_posted_date": "2011-12-08",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00790452"
    },
    {
      "nct_id": "NCT01047722",
      "title": "In-Vivo Bleeding Volume Test for Platelet-Aspirin Interaction",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Aspirin ingestion followed by doing a Bleeding Volume Test",
          "type": "DRUG"
        },
        {
          "name": "Gatorade Placebo followed by Bleeding Volume Test.",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Klein, Jeffrey A., M.D.",
      "sponsor_class": "INDIV",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 100,
      "start_date": "2010-01",
      "completion_date": "2015-10",
      "has_results": false,
      "last_update_posted_date": "2015-07-21",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 2,
      "location_summary": "Newport Beach, California • San Juan Capistrano, California",
      "locations": [
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "San Juan Capistrano",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01047722"
    },
    {
      "nct_id": "NCT00697151",
      "title": "Patent Foramen Ovale in Cryptogenic Stroke Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Ischemic Stroke",
        "Patent Foramen Ovale"
      ],
      "interventions": [
        {
          "name": "Warfarin",
          "type": "DRUG"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 630,
      "start_date": "1993-06",
      "completion_date": "2000-06",
      "has_results": false,
      "last_update_posted_date": "2011-09-15",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00697151"
    },
    {
      "nct_id": "NCT00027066",
      "title": "Warfarin Versus Aspirin Recurrent Stroke Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Stroke"
      ],
      "interventions": [
        {
          "name": "Active Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Active Warfarin",
          "type": "DRUG"
        },
        {
          "name": "Aspirin placebo",
          "type": "DRUG"
        },
        {
          "name": "Warfarin placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "30 Years to 85 Years"
      },
      "enrollment_count": 2206,
      "start_date": "1993-06",
      "completion_date": "2001-11",
      "has_results": false,
      "last_update_posted_date": "2011-06-17",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00027066"
    },
    {
      "nct_id": "NCT00062023",
      "title": "Comparison of Sulindac, Aspirin, and Ursodiol in Preventing Colorectal Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "Acetylsalicylic acid (Aspirin)",
          "type": "DRUG"
        },
        {
          "name": "Sulindac",
          "type": "DRUG"
        },
        {
          "name": "Ursodiol",
          "type": "DRUG"
        },
        {
          "name": "Sulindac Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "40 Years to 80 Years"
      },
      "enrollment_count": 12,
      "start_date": "2003-06",
      "completion_date": "2006-05",
      "has_results": false,
      "last_update_posted_date": "2012-07-30",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00062023"
    },
    {
      "nct_id": "NCT02216357",
      "title": "Trial to Determine the Safety of Oral Ifetroban in Patients With a History of Aspirin Exacerbated Respiratory Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Aspirin Exacerbated Respiratory Disease (AERD)"
      ],
      "interventions": [
        {
          "name": "Ifetroban, Oral Capsule",
          "type": "DRUG"
        },
        {
          "name": "Placebo, Oral Capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Cumberland Pharmaceuticals",
      "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": 19,
      "start_date": "2014-08",
      "completion_date": "2016-01",
      "has_results": true,
      "last_update_posted_date": "2017-05-15",
      "last_synced_at": "2026-09-14T15:00:35.589Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Overland Park, Kansas • West Nyack, New York",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Overland Park",
          "state": "Kansas"
        },
        {
          "city": "West Nyack",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02216357"
    }
  ]
}