{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Aspirin+placebo&page=4",
    "query": {
      "intervention": "Aspirin 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+placebo&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Aspirin+placebo&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-09T06:59:27.658Z",
  "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": "NCT01257893",
      "title": "Aspirin Resistance in Women With Migraine",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Episodic Migraine",
        "Chronic Migraine"
      ],
      "interventions": [
        {
          "name": "Aspirin (acetylsalicylic acid)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Swedish Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2010-11",
      "completion_date": "2012-08",
      "has_results": false,
      "last_update_posted_date": "2013-05-31",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01257893"
    },
    {
      "nct_id": "NCT02155985",
      "title": "Modulation of Immune Activation by Aspirin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV-1 Infection"
      ],
      "interventions": [
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 121,
      "start_date": "2014-08",
      "completion_date": "2015-07",
      "has_results": true,
      "last_update_posted_date": "2017-06-12",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 15,
      "location_summary": "Los Angeles, California • San Diego, California • San Francisco, California + 10 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Torrance",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02155985"
    },
    {
      "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": "2026-10-09T06:59:27.658Z",
      "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": "NCT00002527",
      "title": "Aspirin in Treating Patients With Colorectal Cancer That Has Been Surgically Removed",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "aspirin",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "30 Years to 74 Years"
      },
      "enrollment_count": 635,
      "start_date": "1993-05",
      "completion_date": "2006-01",
      "has_results": false,
      "last_update_posted_date": "2016-07-04",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 41,
      "location_summary": "Scottsdale, Arizona • San Francisco, California • Miami Beach, Florida + 37 more",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Miami Beach",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002527"
    },
    {
      "nct_id": "NCT00486512",
      "title": "Chemoprevention of Colorectal Adenomas",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Adenomatous Polyps"
      ],
      "interventions": [
        {
          "name": "0.5 mg calcitriol (1a -25-dihydroxycholecalciferol)",
          "type": "DRUG"
        },
        {
          "name": "75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3)",
          "type": "DRUG"
        },
        {
          "name": "placebo to 0.5 mg calcitriol (1a -25-dihydroxycholecalciferol)",
          "type": "DRUG"
        },
        {
          "name": "placebo to 75 mg acetylsalicylic acid (ASA) + 1250 mg calcium carbonate (CaCO3)",
          "type": "DRUG"
        },
        {
          "name": "Colonoscopy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Colotech A/S",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 350,
      "start_date": "2007-06",
      "completion_date": "2010-11",
      "has_results": false,
      "last_update_posted_date": "2020-09-03",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 24,
      "location_summary": "Huntsville, Alabama • San Diego, California • Clearwater, Florida + 20 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Clearwater",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00486512"
    },
    {
      "nct_id": "NCT00357968",
      "title": "Trial in Subjects Undergoing Cardiac Catheterization With Planned Percutaneous Coronary Intervention With Stenting",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Coronary Artery Disease"
      ],
      "interventions": [
        {
          "name": "Prasugrel",
          "type": "DRUG"
        },
        {
          "name": "Clopidogrel",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Prasugrel",
          "type": "DRUG"
        },
        {
          "name": "Placebo for Clopidogrel",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 201,
      "start_date": "2006-08",
      "completion_date": "2007-06",
      "has_results": true,
      "last_update_posted_date": "2010-08-31",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 4,
      "location_summary": "Jacksonville, Florida • Worcester, Massachusetts • Ann Arbor, Michigan + 1 more",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        },
        {
          "city": "Rapid City",
          "state": "South Dakota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00357968"
    },
    {
      "nct_id": "NCT01420094",
      "title": "Evaluate Onset of Action of a Fast Release Aspirin",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Healthy Subjects"
      ],
      "interventions": [
        {
          "name": "Acetylsalicyclic acid (Fast release Aspirin, BAY1019036)",
          "type": "DRUG"
        },
        {
          "name": "Acetaminophen (Tylenol extra strength)",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bayer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "16 Years to 45 Years"
      },
      "enrollment_count": 510,
      "start_date": "2011-06-16",
      "completion_date": "2011-09-08",
      "has_results": false,
      "last_update_posted_date": "2018-12-19",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01420094"
    },
    {
      "nct_id": "NCT03152409",
      "title": "Salicylic Augmentation in Depression",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Depression",
        "Depressive Disorder",
        "Major Depressive Disorder",
        "Treatment Resistant Depression"
      ],
      "interventions": [
        {
          "name": "Aspirin 325mg",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Tablet",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Jessica Harder",
      "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": 32,
      "start_date": "2018-11-15",
      "completion_date": "2021-02-16",
      "has_results": true,
      "last_update_posted_date": "2024-01-31",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03152409"
    },
    {
      "nct_id": "NCT00234299",
      "title": "Effects of ASA on Prostate Tissue",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "74 Years",
        "sex": "MALE",
        "summary": "45 Years to 74 Years · Male only"
      },
      "enrollment_count": 60,
      "start_date": "2005-12",
      "completion_date": "2015-12",
      "has_results": false,
      "last_update_posted_date": "2016-05-25",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00234299"
    },
    {
      "nct_id": "NCT03051646",
      "title": "Aspirin as a Pre-Treatment for Exercise in Multiple Sclerosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Fatigue",
        "Overheating"
      ],
      "interventions": [
        {
          "name": "Acetylsalicylic acid at 1st visit, then Placebo at 2nd visit",
          "type": "DRUG"
        },
        {
          "name": "Placebo at 1st visit, then Acetylsalicylic acid at 2nd visit",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Columbia University",
      "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": 12,
      "start_date": "2017-01-13",
      "completion_date": "2017-05-10",
      "has_results": true,
      "last_update_posted_date": "2018-11-20",
      "last_synced_at": "2026-10-09T06:59:27.658Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03051646"
    }
  ]
}