{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Naproxen+250+MG",
    "query": {
      "intervention": "Naproxen 250 MG"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 18,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Naproxen+250+MG&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-14T19:49:57.914Z",
  "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": "NCT00780325",
      "title": "Effects of Dual Cyclooxygenase-2 and Carbonic Anhydrase Inhibition",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteers"
      ],
      "interventions": [
        {
          "name": "CG100649 (2 mg)",
          "type": "DRUG"
        },
        {
          "name": "Celecoxib",
          "type": "DRUG"
        },
        {
          "name": "Placebo capsules",
          "type": "DRUG"
        },
        {
          "name": "Naproxen",
          "type": "DRUG"
        },
        {
          "name": "Acetazolamide",
          "type": "DRUG"
        },
        {
          "name": "CG100649 (8 mg)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 26,
      "start_date": "2008-10",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2014-02-06",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00780325"
    },
    {
      "nct_id": "NCT00662896",
      "title": "To Assess the Effect of Naproxcinod Versus Naproxen and Ibuprofen on Arterial Blood Pressure in Osteoarthritis Patients With Controlled Essential Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Osteoarthritis",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "naproxcinod 375 mg bid",
          "type": "DRUG"
        },
        {
          "name": "naproxcinod 750 mg bid",
          "type": "DRUG"
        },
        {
          "name": "naproxen 250 mg bid",
          "type": "DRUG"
        },
        {
          "name": "naproxen 500 mg bid",
          "type": "DRUG"
        },
        {
          "name": "ibuprofen 600 mg tid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NicOx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 300,
      "start_date": "2008-03",
      "completion_date": "2008-12",
      "has_results": false,
      "last_update_posted_date": "2011-06-17",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 57,
      "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Sierra Vista, Arizona + 54 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Sierra Vista",
          "state": "Arizona"
        },
        {
          "city": "Carmichael",
          "state": "California"
        },
        {
          "city": "Fair Oaks",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00662896"
    },
    {
      "nct_id": "NCT00435292",
      "title": "Study of Flavocoxid (Limbrel) vs Naproxen in Subjects With Mod-Severe Osteoarthritis of the Knee",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Naproxen",
          "type": "DRUG"
        },
        {
          "name": "flavocoxid 250 mg",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "flavocoxid 500 mg",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Primus Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "35 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "35 Years to 85 Years"
      },
      "enrollment_count": 350,
      "start_date": "2006-04",
      "completion_date": "2007-12",
      "has_results": false,
      "last_update_posted_date": "2015-10-21",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 1,
      "location_summary": "Scottsdale, Arizona",
      "locations": [
        {
          "city": "Scottsdale",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00435292"
    },
    {
      "nct_id": "NCT01165307",
      "title": "Medical Therapy Versus Radiofrequency Endometrial Ablation in the Initial Treatment of Menorrhagia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Menorrhagia"
      ],
      "interventions": [
        {
          "name": "Estradiol 30mcg / Levonorgestrel 150mcg monophasic oral contraceptive pills",
          "type": "DRUG"
        },
        {
          "name": "Naproxen sodium pills",
          "type": "DRUG"
        },
        {
          "name": "NovaSure® Radiofrequency Endometrial Ablation",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Abimbola Famuyide",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "30 Years to 55 Years · Female only"
      },
      "enrollment_count": 77,
      "start_date": "2009-08",
      "completion_date": "2015-10",
      "has_results": true,
      "last_update_posted_date": "2017-01-20",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01165307"
    },
    {
      "nct_id": "NCT01557816",
      "title": "Trial of Naproxen to Evaluate Various Methods of Measuring Analgesic Effect in Osteoarthritis Pain of the Knee",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis, Knee"
      ],
      "interventions": [
        {
          "name": "Naproxen",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Analgesic Solutions",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 70,
      "start_date": "2011-12",
      "completion_date": "2012-06",
      "has_results": false,
      "last_update_posted_date": "2012-03-22",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 1,
      "location_summary": "Natick, Massachusetts",
      "locations": [
        {
          "city": "Natick",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01557816"
    },
    {
      "nct_id": "NCT00662610",
      "title": "A Study to Assess the Effects of Naproxcinod and Naproxen on Blood Pressure Measurements in Osteoarthritis Patients With Controlled High Blood Pressure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Osteoarthritis",
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "naproxcinod 375 mg -750 mg -1125 mg bid",
          "type": "DRUG"
        },
        {
          "name": "naproxen 250 mg - 500mg -750 mg bid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NicOx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 120,
      "start_date": "2008-03",
      "completion_date": "2008-11",
      "has_results": false,
      "last_update_posted_date": "2011-06-17",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 29,
      "location_summary": "Mobile, Alabama • Tempe, Arizona • Tucson, Arizona + 26 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Buena Park",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00662610"
    },
    {
      "nct_id": "NCT01544114",
      "title": "A Safety Study of VIMOVO in Adolescents With Juvenile Idiopathic Arthritis (JIA)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Juvenile Idiopathic Arthritis (JIA)"
      ],
      "interventions": [
        {
          "name": "VIMOVO 250/20",
          "type": "DRUG"
        },
        {
          "name": "VIMOVO 375/20",
          "type": "DRUG"
        },
        {
          "name": "VIMOVO 500/20",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Amgen",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "16 Years",
        "sex": "ALL",
        "summary": "12 Years to 16 Years"
      },
      "enrollment_count": 46,
      "start_date": "2012-04",
      "completion_date": "2015-02",
      "has_results": true,
      "last_update_posted_date": "2024-12-17",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 17,
      "location_summary": "Little Rock, Arkansas • San Francisco, California • Aurora, Colorado + 14 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01544114"
    },
    {
      "nct_id": "NCT04875702",
      "title": "Treat-to-Target Serum Urate Versus Treat-to-Avoid Symptoms in Gout",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Gout"
      ],
      "interventions": [
        {
          "name": "Allopurinol",
          "type": "DRUG"
        },
        {
          "name": "Naproxen 250 MG",
          "type": "DRUG"
        },
        {
          "name": "Colchicine 0.6 mg",
          "type": "DRUG"
        },
        {
          "name": "Colchicine 1.2 mg",
          "type": "DRUG"
        },
        {
          "name": "Naproxen 500 Mg",
          "type": "DRUG"
        },
        {
          "name": "Prednisone 40 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 650,
      "start_date": "2024-02-22",
      "completion_date": "2028-10-31",
      "has_results": false,
      "last_update_posted_date": "2025-09-25",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 7,
      "location_summary": "South Birmingham, Alabama • Santa Monica, California • Boston, Massachusetts + 2 more",
      "locations": [
        {
          "city": "South Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Santa Monica",
          "state": "California"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04875702"
    },
    {
      "nct_id": "NCT01003639",
      "title": "Idiopathic Intracranial Hypertension Treatment Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Idiopathic Intracranial Hypertension"
      ],
      "interventions": [
        {
          "name": "Acetazolamide",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Formal weight loss counselling program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "St. Luke's-Roosevelt Hospital Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 165,
      "start_date": "2010-01",
      "completion_date": "2014-01",
      "has_results": true,
      "last_update_posted_date": "2018-12-12",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 39,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • Waterbury, Connecticut + 31 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Waterbury",
          "state": "Connecticut"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Tallahassee",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01003639"
    },
    {
      "nct_id": "NCT01884272",
      "title": "NSAID Drug Interaction Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Gout"
      ],
      "interventions": [
        {
          "name": "lesinurad 400 mg",
          "type": "DRUG"
        },
        {
          "name": "naproxen 250 mg",
          "type": "DRUG"
        },
        {
          "name": "indomethacin 25 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Ardea Biosciences, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "18 Years to 55 Years · Male only"
      },
      "enrollment_count": 24,
      "start_date": "2013-06",
      "completion_date": "2013-10",
      "has_results": false,
      "last_update_posted_date": "2013-11-08",
      "last_synced_at": "2026-09-14T19:49:57.914Z",
      "location_count": 1,
      "location_summary": "Kalamazoo, Michigan",
      "locations": [
        {
          "city": "Kalamazoo",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01884272"
    }
  ]
}