{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=81mg+Aspirin",
    "query": {
      "intervention": "81mg Aspirin"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 83,
    "total_pages": 9,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=81mg+Aspirin&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-18T16:47:08.709Z",
  "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": "NCT03699293",
      "title": "NSAIDs vs. Coxibs in the Presence of Aspirin",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Rheumatoid Arthritis",
        "Cardiovascular Diseases"
      ],
      "interventions": [
        {
          "name": "celecoxib 200mg capsule",
          "type": "DRUG"
        },
        {
          "name": "naproxen sodium 550mg tablet",
          "type": "DRUG"
        },
        {
          "name": "Aspirin 81mg tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Platelet and Thrombosis Research, LLC",
      "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": 8,
      "start_date": "2018-09-22",
      "completion_date": "2023-01-01",
      "has_results": true,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03699293"
    },
    {
      "nct_id": "NCT05009862",
      "title": "The Impact of Factor Xa Inhibition on Thrombosis, Platelet Activation, and Endothelial Function in Peripheral Artery Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Peripheral Arterial Disease"
      ],
      "interventions": [
        {
          "name": "Rivaroxaban 2.5 Mg Oral Tablet",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Aspirin 81Mg Ec Tab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2022-04-19",
      "completion_date": "2025-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-14",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05009862"
    },
    {
      "nct_id": "NCT05924971",
      "title": "Aspirin for Postpartum Patients With Preeclampsia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Preeclampsia Postpartum"
      ],
      "interventions": [
        {
          "name": "Aspirin 81Mg Ec Tab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "MemorialCare Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 86,
      "start_date": "2023-07-26",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-06-06",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Long Beach, California",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05924971"
    },
    {
      "nct_id": "NCT02545933",
      "title": "Vorapaxar in Patients With Prior Myocardial Infarction Treated With Prasugrel and Ticagrelor",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Myocardial Infarction"
      ],
      "interventions": [
        {
          "name": "Prasugrel",
          "type": "DRUG"
        },
        {
          "name": "Vorapaxar",
          "type": "DRUG"
        },
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Ticagrelor",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Florida",
      "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": 130,
      "start_date": "2016-02",
      "completion_date": "2020-01",
      "has_results": true,
      "last_update_posted_date": "2020-09-16",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02545933"
    },
    {
      "nct_id": "NCT02268565",
      "title": "Preventing the Inflammatory Response to Experimentally-induced Insomnia Symptoms",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Insomnia"
      ],
      "interventions": [
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 8,
      "start_date": "2014-10",
      "completion_date": "2016-12",
      "has_results": false,
      "last_update_posted_date": "2017-03-15",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02268565"
    },
    {
      "nct_id": "NCT06980025",
      "title": "Aspirin Dose Escalation for the Prevention of Recurrent Preterm Delivery Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Preterm Delivery",
        "Obstetrical Complications"
      ],
      "interventions": [
        {
          "name": "162mg Aspirin",
          "type": "DRUG"
        },
        {
          "name": "81mg Aspirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The George Washington University Biostatistics Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "14 Years and older · Female only"
      },
      "enrollment_count": 1800,
      "start_date": "2025-07-01",
      "completion_date": "2029-02-28",
      "has_results": false,
      "last_update_posted_date": "2026-04-09",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 14,
      "location_summary": "Birmingham, Alabama • San Francisco, California • Chicago, Illinois + 10 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06980025"
    },
    {
      "nct_id": "NCT05889468",
      "title": "Postpartum ASA and NT-proBNP",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Aspirin 81Mg Ec Tab",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 60 Years · Female only"
      },
      "enrollment_count": 114,
      "start_date": "2023-07-01",
      "completion_date": "2024-05-21",
      "has_results": true,
      "last_update_posted_date": "2025-06-04",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05889468"
    },
    {
      "nct_id": "NCT04645004",
      "title": "Antenatal Platelet Response on Aspirin: a Pharmacokinetic Study Through Pregnancy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Preeclampsia"
      ],
      "interventions": [
        {
          "name": "Aspirin 81Mg Non-enteric coated Tab",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Thomas Jefferson University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "13 Years to 55 Years · Female only"
      },
      "enrollment_count": 20,
      "start_date": "2020-12-29",
      "completion_date": "2024-03-15",
      "has_results": false,
      "last_update_posted_date": "2024-04-18",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04645004"
    },
    {
      "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": "2026-09-18T16:47:08.709Z",
      "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": "NCT01781611",
      "title": "Dipyridamole Assessment for Flare Reduction in Systemic Lupus Erythematosus (SLE)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Systemic Lupus Erythematosus"
      ],
      "interventions": [
        {
          "name": "extended release dipyridamole 200mg/aspirin 25mg",
          "type": "DRUG"
        },
        {
          "name": "81mg aspirin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oklahoma Medical Research Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 18,
      "start_date": "2013-02",
      "completion_date": "2017-11",
      "has_results": true,
      "last_update_posted_date": "2020-11-25",
      "last_synced_at": "2026-09-18T16:47:08.709Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01781611"
    }
  ]
}