{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Aspirin+%28ASA%29+placebo&page=4",
    "query": {
      "intervention": "Aspirin (ASA) placebo",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 182,
    "total_pages": 19,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Aspirin+%28ASA%29+placebo&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Aspirin+%28ASA%29+placebo&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T20:20:22.679Z",
  "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": "NCT06312800",
      "title": "Acamprosate and Methazolamide for Essential Tremor",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Essential Tremor"
      ],
      "interventions": [
        {
          "name": "Acamprosate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Methazolamide",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 0,
      "start_date": "2016-03",
      "completion_date": "2017-12",
      "has_results": false,
      "last_update_posted_date": "2024-09-25",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 1,
      "location_summary": "West Bloomfield, Michigan",
      "locations": [
        {
          "city": "West Bloomfield",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06312800"
    },
    {
      "nct_id": "NCT07213778",
      "title": "REGN7508 Versus Acetylsalicylic Acid (ASA) for Venous Thromboprophylaxis After Total Knee Arthroplasty in Adult Participants",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Symptomatic Venous Thromboembolism (VTE)"
      ],
      "interventions": [
        {
          "name": "REGN7508",
          "type": "DRUG"
        },
        {
          "name": "Acetylsalicylic Acid (ASA)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Regeneron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2000,
      "start_date": "2025-11-24",
      "completion_date": "2027-07-16",
      "has_results": false,
      "last_update_posted_date": "2026-10-08",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 36,
      "location_summary": "La Mesa, California • Rancho Mirage, California • Riverside, California + 28 more",
      "locations": [
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Rancho Mirage",
          "state": "California"
        },
        {
          "city": "Riverside",
          "state": "California"
        },
        {
          "city": "Lone Tree",
          "state": "Colorado"
        },
        {
          "city": "Deerfield Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07213778"
    },
    {
      "nct_id": "NCT00778193",
      "title": "Effect of Naproxen, Aspirin, Celecoxib, or Clopidogrel on the Healing of Stomach and Intestinal Ulcers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Gastroduodenal Ulcer"
      ],
      "interventions": [
        {
          "name": "Naproxen",
          "type": "DRUG"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Celecoxib",
          "type": "DRUG"
        },
        {
          "name": "Clopidogrel",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Research Associates of New York, LLP",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 125,
      "start_date": "2007-10",
      "completion_date": "2008-03",
      "has_results": false,
      "last_update_posted_date": "2008-10-23",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00778193"
    },
    {
      "nct_id": "NCT02901067",
      "title": "STAT-STatin and Aspirin in Trauma",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Wounds and Injuries",
        "Venous Thromboembolism"
      ],
      "interventions": [
        {
          "name": "Aspirin and Rosuvastatin",
          "type": "DRUG"
        },
        {
          "name": "Placebo (for Aspirin and Rosuvastatin)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Denver Health and Hospital Authority",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 43,
      "start_date": "2017-02-03",
      "completion_date": "2021-08-01",
      "has_results": true,
      "last_update_posted_date": "2023-04-27",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02901067"
    },
    {
      "nct_id": "NCT00059306",
      "title": "Secondary Prevention of Small Subcortical Strokes Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Cerebrovascular Accident",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "aspirin",
          "type": "DRUG"
        },
        {
          "name": "clopidogrel",
          "type": "DRUG"
        },
        {
          "name": "Target of Blood Pressure",
          "type": "OTHER"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of British Columbia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "30 Years and older"
      },
      "enrollment_count": 3020,
      "start_date": "2003-02",
      "completion_date": "2012-04",
      "has_results": false,
      "last_update_posted_date": "2013-04-04",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 39,
      "location_summary": "Mobile, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 32 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00059306"
    },
    {
      "nct_id": "NCT02227368",
      "title": "Walking Effect of Long Term Ticagrelor in Subjects With PAD Who Have Undergone EVR",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Peripheral Artery Disease (PAD)"
      ],
      "interventions": [
        {
          "name": "Ticagrelor",
          "type": "DRUG"
        },
        {
          "name": "Comparator",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "130 Years",
        "sex": "ALL",
        "summary": "50 Years to 130 Years"
      },
      "enrollment_count": 40,
      "start_date": "2014-10-20",
      "completion_date": "2016-05-23",
      "has_results": true,
      "last_update_posted_date": "2017-07-19",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 10,
      "location_summary": "Daytona Beach, Florida • Jacksonville, Florida • Ocala, Florida + 7 more",
      "locations": [
        {
          "city": "Daytona Beach",
          "state": "Florida"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Ocala",
          "state": "Florida"
        },
        {
          "city": "Sarasota",
          "state": "Florida"
        },
        {
          "city": "Munster",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02227368"
    },
    {
      "nct_id": "NCT00223717",
      "title": "Treatment of Supine Hypertension in Autonomic Failure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "Clonidine",
          "type": "DRUG"
        },
        {
          "name": "Nitroglycerin transdermal",
          "type": "DRUG"
        },
        {
          "name": "Dipyridamole/ Aspirin (Aggrenox)",
          "type": "DRUG"
        },
        {
          "name": "Desmopressin (DDAVP)",
          "type": "DRUG"
        },
        {
          "name": "Sildenafil",
          "type": "DRUG"
        },
        {
          "name": "Nifedipine",
          "type": "DRUG"
        },
        {
          "name": "Hydralazine",
          "type": "DRUG"
        },
        {
          "name": "Hydrochlorothiazide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Bosentan",
          "type": "DRUG"
        },
        {
          "name": "Diltiazem",
          "type": "DRUG"
        },
        {
          "name": "Eplerenone",
          "type": "DRUG"
        },
        {
          "name": "guanfacine",
          "type": "DRUG"
        },
        {
          "name": "L-arginine",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "captopril",
          "type": "DRUG"
        },
        {
          "name": "carbidopa",
          "type": "DRUG"
        },
        {
          "name": "losartan",
          "type": "DRUG"
        },
        {
          "name": "metoprolol tartrate",
          "type": "DRUG"
        },
        {
          "name": "nebivolol hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "prazosin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "tamsulosin hydrochloride",
          "type": "DRUG"
        },
        {
          "name": "Head-up tilt.",
          "type": "OTHER"
        },
        {
          "name": "aliskiren",
          "type": "DRUG"
        },
        {
          "name": "Local heat stress",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 152,
      "start_date": "2001-01",
      "completion_date": "2017-01",
      "has_results": false,
      "last_update_posted_date": "2017-10-13",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00223717"
    },
    {
      "nct_id": "NCT02072226",
      "title": "A Study of the Efficacy and Safety of Alteplase in Participants With Mild Stroke",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Stroke"
      ],
      "interventions": [
        {
          "name": "Alteplase",
          "type": "DRUG"
        },
        {
          "name": "Alteplase Placebo",
          "type": "DRUG"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Aspirin Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Genentech, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 313,
      "start_date": "2014-05-31",
      "completion_date": "2017-03-22",
      "has_results": true,
      "last_update_posted_date": "2018-07-03",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 88,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 72 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Fullerton",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02072226"
    },
    {
      "nct_id": "NCT04146532",
      "title": "Aspirin Effects on Emotional Reactions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Healthy Adults"
      ],
      "interventions": [
        {
          "name": "Aspirin 500 MG",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 268,
      "start_date": "2019-10-08",
      "completion_date": "2022-04-15",
      "has_results": false,
      "last_update_posted_date": "2024-06-03",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04146532"
    },
    {
      "nct_id": "NCT00619073",
      "title": "PACT (Platelet Activity After Clopidogrel Termination)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Blood Platelets",
        "Clopidogrel"
      ],
      "interventions": [
        {
          "name": "clopidogrel + aspirin",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 15,
      "start_date": "2008-04",
      "completion_date": "2009-05",
      "has_results": true,
      "last_update_posted_date": "2018-05-31",
      "last_synced_at": "2026-10-13T20:20:22.679Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00619073"
    }
  ]
}