{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Sildenafil+by+injection",
    "query": {
      "intervention": "Sildenafil by injection"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 8,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-22T03:46:26.629Z",
  "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": "NCT00808912",
      "title": "Does Sildenafil Increase Exercise Performance in Air Pollution?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Hypertension",
        "Pulmonary Artery Pressure",
        "Exercise Performance",
        "Air Pollution"
      ],
      "interventions": [
        {
          "name": "sildenafil",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Marywood University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "MALE",
        "summary": "18 Years to 30 Years · Male only"
      },
      "enrollment_count": 24,
      "start_date": "2008-12",
      "completion_date": "2010-02",
      "has_results": false,
      "last_update_posted_date": "2010-06-23",
      "last_synced_at": "2026-09-22T03:46:26.629Z",
      "location_count": 1,
      "location_summary": "Scranton, Pennsylvania",
      "locations": [
        {
          "city": "Scranton",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00808912"
    },
    {
      "nct_id": "NCT01954524",
      "title": "A Phase 1, Open-Label Study of Intravenous Sildenafil in Patients With Cirrhosis",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cirrhosis"
      ],
      "interventions": [
        {
          "name": "IV bolus injection of Sildenafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2014-05",
      "completion_date": "2015-10",
      "has_results": false,
      "last_update_posted_date": "2022-11-15",
      "last_synced_at": "2026-09-22T03:46:26.629Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01954524"
    },
    {
      "nct_id": "NCT00080808",
      "title": "Nerve-Sparing Radical Prostatectomy With or Without Nerve Grafting Followed by Standard Therapy for Erectile Dysfunction in Treating Patients With Localized Prostate Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Alprostadil (E1)",
          "type": "DRUG"
        },
        {
          "name": "Papaverine",
          "type": "DRUG"
        },
        {
          "name": "Phentolamine mesylate",
          "type": "DRUG"
        },
        {
          "name": "Sildenafil citrate",
          "type": "DRUG"
        },
        {
          "name": "conventional surgery",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "65 Years",
        "sex": "MALE",
        "summary": "Up to 65 Years · Male only"
      },
      "enrollment_count": 111,
      "start_date": "2001-08",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2012-07-30",
      "last_synced_at": "2026-09-22T03:46:26.629Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00080808"
    },
    {
      "nct_id": "NCT00955929",
      "title": "Pharmacological Penile Rehabilitation in the Preservation of Erectile Function Following Bilateral Nerve-Sparing Radical Prostatectomy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Penile Cancer",
        "Erectile Dysfunction",
        "Radical Prostatectomy"
      ],
      "interventions": [
        {
          "name": "Placebo QHS and sildenafil and questionnaires",
          "type": "DRUG"
        },
        {
          "name": "Sildenafil and questionnaire",
          "type": "DRUG"
        },
        {
          "name": "Trimix combination (Papavarine 30mg/mL Phentholamine 1mg/mL Prostaglandin E1 10 mcg/mmL) and questionnaires",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 76,
      "start_date": "2009-08-06",
      "completion_date": "2020-12-09",
      "has_results": true,
      "last_update_posted_date": "2021-11-10",
      "last_synced_at": "2026-09-22T03:46:26.629Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00955929"
    },
    {
      "nct_id": "NCT01266265",
      "title": "Study of Incidence of Respiratory Tract AEs in Patients Treated With Tyvaso® Compared to Other FDA Approved PAH Therapies",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "inhaled prostacyclin",
          "type": "DRUG"
        },
        {
          "name": "prostacyclin",
          "type": "DRUG"
        },
        {
          "name": "subcutaneous and intravenous prostacyclin",
          "type": "DRUG"
        },
        {
          "name": "oral ERA",
          "type": "DRUG"
        },
        {
          "name": "oral PDE5 inhibitors",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "United Therapeutics",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1333,
      "start_date": "2010-12",
      "completion_date": "2014-12",
      "has_results": true,
      "last_update_posted_date": "2016-02-17",
      "last_synced_at": "2026-09-22T03:46:26.629Z",
      "location_count": 88,
      "location_summary": "Birmingham, Alabama • Mobile, Alabama • Phoenix, Arizona + 65 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01266265"
    },
    {
      "nct_id": "NCT04447989",
      "title": "Safety of Sildenafil in Premature Infants With Severe Bronchopulmonary Dysplasia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Bronchopulmonary Dysplasia of Newborn"
      ],
      "interventions": [
        {
          "name": "Sildenafil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Christoph Hornik",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "29 Weeks",
        "sex": "ALL",
        "summary": "Up to 29 Weeks"
      },
      "enrollment_count": 125,
      "start_date": "2021-05-27",
      "completion_date": "2025-01-15",
      "has_results": true,
      "last_update_posted_date": "2026-01-26",
      "last_synced_at": "2026-09-22T03:46:26.629Z",
      "location_count": 25,
      "location_summary": "Little Rock, Arkansas • San Diego, California • Washington D.C., District of Columbia + 19 more",
      "locations": [
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04447989"
    },
    {
      "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": "2026-09-22T03:46:26.629Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01169519"
    },
    {
      "nct_id": "NCT06649539",
      "title": "Delayed Dose Collagenase Clostridium Histolyticum (CCH) Protocol for Men With Peyronie's Disease",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Peyronie Disease"
      ],
      "interventions": [
        {
          "name": "Collagenase Clostridium Histolyticum",
          "type": "DRUG"
        },
        {
          "name": "RestoreX",
          "type": "DEVICE"
        },
        {
          "name": "Sildenafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "Charitable Union for the Research and Education of Peyronie's Disease",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2024-10-11",
      "completion_date": "2029-10",
      "has_results": false,
      "last_update_posted_date": "2026-08-26",
      "last_synced_at": "2026-09-22T03:46:26.629Z",
      "location_count": 1,
      "location_summary": "Orem, Utah",
      "locations": [
        {
          "city": "Orem",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06649539"
    }
  ]
}