{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sildenafil+Citrate&page=2",
    "query": {
      "intervention": "Sildenafil Citrate",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sildenafil+Citrate&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T04:54:24.957Z",
  "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": "NCT01432665",
      "title": "Lybrido for Female Sexual Dysfunction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hypoactive Sexual Desire Disorder"
      ],
      "interventions": [
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Sildenafil",
          "type": "DRUG"
        },
        {
          "name": "Testosterone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Emotional Brain NY Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 70 Years · Female only"
      },
      "enrollment_count": 196,
      "start_date": "2011-09",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2013-07-29",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 14,
      "location_summary": "San Diego, California • Washington D.C., District of Columbia • Brooksville, Florida + 11 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Brooksville",
          "state": "Florida"
        },
        {
          "city": "North Miami",
          "state": "Florida"
        },
        {
          "city": "Orlando",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01432665"
    },
    {
      "nct_id": "NCT00159913",
      "title": "A Randomized, Double-Blind, Placebo-Controlled Study of Sildenafil in Children With Pulmonary Arterial Hypertension.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension, Children"
      ],
      "interventions": [
        {
          "name": "Sildenafil citrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer's Upjohn has merged with Mylan to form Viatris Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "1 Year",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "1 Year to 17 Years"
      },
      "enrollment_count": 235,
      "start_date": "2003-08",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2021-02-18",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 10,
      "location_summary": "Palo Alto, California • Stanford, California • Aurora, Colorado + 7 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00159913"
    },
    {
      "nct_id": "NCT01059994",
      "title": "Role of Skeletal Muscle Nitric Oxide Production in Age-related Fatigue and Fatigability",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fatigue",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Placebo sildenafil",
          "type": "DRUG"
        },
        {
          "name": "Sildenafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "The University of Texas Medical Branch, Galveston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "20 Years to 80 Years · Male only"
      },
      "enrollment_count": 12,
      "start_date": "2010-01",
      "completion_date": "2013-07",
      "has_results": true,
      "last_update_posted_date": "2019-02-11",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "Galveston, Texas",
      "locations": [
        {
          "city": "Galveston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01059994"
    },
    {
      "nct_id": "NCT00793338",
      "title": "Evaluation of Sildenafil for the Treatment of Moderate Congestive Heart Failure",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Heart Failure"
      ],
      "interventions": [
        {
          "name": "Sildenafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of New Mexico",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 0,
      "start_date": "2008-11",
      "completion_date": "2011-02",
      "has_results": false,
      "last_update_posted_date": "2023-06-26",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "Albuquerque, New Mexico",
      "locations": [
        {
          "city": "Albuquerque",
          "state": "New Mexico"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00793338"
    },
    {
      "nct_id": "NCT02626182",
      "title": "Evaluation and Treatment of Pulmonary Vascular Disease in Moderate to Severe CF",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "sildenafil",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Jewish Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2015-12",
      "completion_date": "2018-01-29",
      "has_results": true,
      "last_update_posted_date": "2019-07-24",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02626182"
    },
    {
      "nct_id": "NCT06872866",
      "title": "The Objective of This Phase 1 Study is to Evaluate the Food Effect of 100 mg Hezkue Turbo® (ASP-001.1, Sildenafil) Under Fed Versus 100 mg of Hezkue Turbo® (ASP-001.1, Sildenafil) Under Fasted Conditions in Healthy Adult Male Subjects",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Erectile Dysfunction"
      ],
      "interventions": [
        {
          "name": "ASP-001.1",
          "type": "DRUG"
        },
        {
          "name": "ASP-001.1",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Aspargo Labs, Inc",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "70 Years",
        "sex": "MALE",
        "summary": "20 Years to 70 Years · Male only"
      },
      "enrollment_count": 12,
      "start_date": "2025-04-15",
      "completion_date": "2026-02-28",
      "has_results": false,
      "last_update_posted_date": "2025-11-19",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06872866"
    },
    {
      "nct_id": "NCT01169519",
      "title": "Sildenafil in Single Ventricle Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Heart Disease"
      ],
      "interventions": [
        {
          "name": "Sildenafil by injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "3 Months",
        "maximum_age": "120 Months",
        "sex": "ALL",
        "summary": "3 Months to 120 Months"
      },
      "enrollment_count": 21,
      "start_date": "2011-04",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2013-12-05",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01169519"
    },
    {
      "nct_id": "NCT00659529",
      "title": "Safety and Efficacy of Sildenafil in Cystic Fibrosis (CF) Lung Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Cystic Fibrosis"
      ],
      "interventions": [
        {
          "name": "sildenafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Jewish Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "14 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2008-08",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00659529"
    },
    {
      "nct_id": "NCT02129725",
      "title": "Effect of Prolonged PDE-5 Inhibition on Insulin Signaling in Skeletal Muscle.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Metabolic Syndrome"
      ],
      "interventions": [
        {
          "name": "Sildenafil citrate",
          "type": "DRUG"
        },
        {
          "name": "Placebo Oral Capsule",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2014-04",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2017-04-19",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02129725"
    },
    {
      "nct_id": "NCT00194597",
      "title": "Trial of Viagra' in Men With Chronic Pelvic Pain Syndrome Type III",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Prostatitis"
      ],
      "interventions": [
        {
          "name": "Viagra (sildenafil citrate)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "18 Years to 65 Years · Male only"
      },
      "enrollment_count": 30,
      "start_date": "2004-07",
      "completion_date": "2007-07",
      "has_results": false,
      "last_update_posted_date": "2008-10-22",
      "last_synced_at": "2026-09-28T04:54:24.957Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00194597"
    }
  ]
}