{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+tadalafil&page=2",
    "query": {
      "intervention": "Placebo tadalafil",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 55,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+tadalafil&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Placebo+tadalafil&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T15:22:54.100Z",
  "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": "NCT06290713",
      "title": "Vasodilator and Exercise Study for DMD (VASO-REx)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Duchenne Muscular Dystrophy",
        "Duchenne Disease",
        "Muscular Dystrophy",
        "Muscular Dystrophy in Children",
        "Vasodilation",
        "Exercise",
        "DMD"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Exercise Training",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "6 Years and older · Male only"
      },
      "enrollment_count": 50,
      "start_date": "2024-06-05",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06290713"
    },
    {
      "nct_id": "NCT01970176",
      "title": "Study to Determine How Cialis Effects the Renal Function in Response to Volume Expansion in Preclinical Systolic Cardiomyopathy (Aim2)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Cardiomyopathy",
        "Renal Impairment"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "21 Years to 90 Years"
      },
      "enrollment_count": 20,
      "start_date": "2014-01-09",
      "completion_date": "2019-09",
      "has_results": true,
      "last_update_posted_date": "2021-06-11",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01970176"
    },
    {
      "nct_id": "NCT00547508",
      "title": "To Determine How Different Doses of Tadalafil Work on Getting and Keeping an Erection 26 or 36 Hours After Taking",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Impotence"
      ],
      "interventions": [
        {
          "name": "tadalafil",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "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": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 485,
      "start_date": "2002-10",
      "completion_date": "2003-09",
      "has_results": false,
      "last_update_posted_date": "2007-10-22",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 1,
      "location_summary": "Knoxville, Tennessee",
      "locations": [
        {
          "city": "Knoxville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00547508"
    },
    {
      "nct_id": "NCT00855582",
      "title": "A Study in the Treatment of Erectile Dysfunction and Benign Prostate Hyperplasia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Erectile Dysfunction",
        "Benign Prostatic Hyperplasia"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "45 Years and older · Male only"
      },
      "enrollment_count": 606,
      "start_date": "2009-03",
      "completion_date": "2010-07",
      "has_results": true,
      "last_update_posted_date": "2011-07-28",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 17,
      "location_summary": "Anchorage, Alaska • Phoenix, Arizona • La Mesa, California + 14 more",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "La Mesa",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00855582"
    },
    {
      "nct_id": "NCT02544880",
      "title": "PDE5 Inhibition Via Tadalafil to Enhance Anti-Tumor Mucin 1 (MUC1) Vaccine Efficacy in Patients With HNSCC",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Head and Neck Squamous Cell Carcinoma",
        "Head and Neck Cancer"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Anti-MUC1 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Anti-Influenza Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Tadalafil Placebo",
          "type": "OTHER"
        },
        {
          "name": "Anti-MUC1 Vaccine Placebo",
          "type": "OTHER"
        },
        {
          "name": "Standard of Care Treatment",
          "type": "OTHER"
        },
        {
          "name": "Anti-Influenza Vaccine Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Donald T. Weed, MD, FACS",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2016-04-25",
      "completion_date": "2021-06-08",
      "has_results": false,
      "last_update_posted_date": "2021-06-15",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02544880"
    },
    {
      "nct_id": "NCT01910389",
      "title": "Phosphodiesterase Type 5 Inhibition With Tadalafil Changes Outcomes in Heart Failure",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Heart Failure",
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Placebo for tadalafil",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Carelon Research",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 23,
      "start_date": "2013-11",
      "completion_date": "2014-02",
      "has_results": true,
      "last_update_posted_date": "2015-05-04",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 62,
      "location_summary": "Huntsville, Alabama • Little Rock, Arkansas • Fountain Valley, California + 55 more",
      "locations": [
        {
          "city": "Huntsville",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Newark",
          "state": "Delaware"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01910389"
    },
    {
      "nct_id": "NCT01152190",
      "title": "A Study in Benign Prostatic Hyperplasia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Benign Prostatic Hyperplasia"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "45 Years and older · Male only"
      },
      "enrollment_count": 97,
      "start_date": "2010-09",
      "completion_date": "2012-07",
      "has_results": true,
      "last_update_posted_date": "2013-05-20",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • Garden City, New York • New York, New York",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Garden City",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01152190"
    },
    {
      "nct_id": "NCT00125918",
      "title": "PHIRST-1: Tadalafil in the Treatment of Pulmonary Arterial Hypertension",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pulmonary Hypertension"
      ],
      "interventions": [
        {
          "name": "tadalafil",
          "type": "DRUG"
        },
        {
          "name": "placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 406,
      "start_date": "2005-08",
      "completion_date": "2007-08",
      "has_results": false,
      "last_update_posted_date": "2008-02-21",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 3,
      "location_summary": "Tucson, Arizona • Minneapolis, Minnesota • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00125918"
    },
    {
      "nct_id": "NCT01160289",
      "title": "A Study of LY900010 in Erectile Dysfunction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Erectile Dysfunction"
      ],
      "interventions": [
        {
          "name": "LY2452473",
          "type": "DRUG"
        },
        {
          "name": "tadalafil",
          "type": "DRUG"
        },
        {
          "name": "placebo (tadalafil)",
          "type": "DRUG"
        },
        {
          "name": "placebo (LY2452473)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "70 Years",
        "sex": "MALE",
        "summary": "45 Years to 70 Years · Male only"
      },
      "enrollment_count": 410,
      "start_date": "2010-10",
      "completion_date": "2011-11",
      "has_results": true,
      "last_update_posted_date": "2019-04-09",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 36,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Glendora, California + 33 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Glendora",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01160289"
    },
    {
      "nct_id": "NCT01865084",
      "title": "A Study of Tadalafil for Duchenne Muscular Dystrophy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Muscular Dystrophy, Duchenne"
      ],
      "interventions": [
        {
          "name": "Tadalafil",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Eli Lilly and Company",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Years",
        "maximum_age": "14 Years",
        "sex": "MALE",
        "summary": "7 Years to 14 Years · Male only"
      },
      "enrollment_count": 331,
      "start_date": "2013-09",
      "completion_date": "2016-03",
      "has_results": true,
      "last_update_posted_date": "2019-10-09",
      "last_synced_at": "2026-10-08T15:22:54.100Z",
      "location_count": 23,
      "location_summary": "Los Angeles, California • Sacramento, California • Aurora, Colorado + 20 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Gainesville",
          "state": "Florida"
        },
        {
          "city": "Gulf Breeze",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01865084"
    }
  ]
}