{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Viagra+%28Sildenafil+Citrate%29+100+mg", "query": { "intervention": "Viagra (Sildenafil Citrate) 100 mg" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 30, "total_pages": 3, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Viagra+%28Sildenafil+Citrate%29+100+mg&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-10-07T16:34:01.527Z", "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": "NCT00655590", "title": "Assess the Effect of Daily Treatment of Vardenafil 20mg or Sildenafil 100mg and Placebo on Sperm Function", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Erectile Dysfunction" ], "interventions": [ { "name": "Levitra (Vardenafil, BAY38-9456)", "type": "DRUG" }, { "name": "Sildenafil", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Bayer", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "25 Years", "maximum_age": "64 Years", "sex": "MALE", "summary": "25 Years to 64 Years · Male only" }, "enrollment_count": 200, "start_date": "2005-01", "completion_date": "2006-06", "has_results": false, "last_update_posted_date": "2014-12-30", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 18, "location_summary": "Phoenix, Arizona • Tempe, Arizona • Beverly Hills, California + 15 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Tempe", "state": "Arizona" }, { "city": "Beverly Hills", "state": "California" }, { "city": "La Mesa", "state": "California" }, { "city": "Laguna Hills", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00655590" }, { "nct_id": "NCT00137072", "title": "Mild To Moderate Erectile Dysfunction Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Impotence" ], "interventions": [ { "name": "Viagra (Sildenafil Citrate) 100 mg", "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": "18 Years", "maximum_age": "70 Years", "sex": "MALE", "summary": "18 Years to 70 Years · Male only" }, "enrollment_count": 355, "start_date": "2005-04", "completion_date": "2006-02", "has_results": false, "last_update_posted_date": "2021-02-01", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 33, "location_summary": "Birmingham, Alabama • Homewood, Alabama • Hoover, Alabama + 30 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Homewood", "state": "Alabama" }, { "city": "Hoover", "state": "Alabama" }, { "city": "Huntsville", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT00137072" }, { "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": "2026-10-07T16:34:01.527Z", "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": "NCT00617305", "title": "Study of Add-on Ambrisentan Therapy to Background Phosphodiesterase Type-5 Inhibitor (PDE5i) Therapy in Pulmonary Arterial Hypertension (ATHENA-1)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Pulmonary Arterial Hypertension" ], "interventions": [ { "name": "Ambrisentan", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Sildenafil", "type": "DRUG" }, { "name": "Tadalafil", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Gilead Sciences", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "16 Years", "maximum_age": "75 Years", "sex": "ALL", "summary": "16 Years to 75 Years" }, "enrollment_count": 38, "start_date": "2008-04", "completion_date": "2011-07", "has_results": true, "last_update_posted_date": "2012-07-30", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 30, "location_summary": "Mobile, Alabama • Phoenix, Arizona • Los Angeles, California + 25 more", "locations": [ { "city": "Mobile", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Los Angeles", "state": "California" }, { "city": "Torrance", "state": "California" }, { "city": "Fort Lauderdale", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00617305" }, { "nct_id": "NCT07508358", "title": "Vaginal Sildenafil for Primary Dysmenorrhea", "overall_status": "NOT_YET_RECRUITING", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Dysmenorrhea", "Menstrual Pain", "Endometriosis", "Uterine Fibroid" ], "interventions": [ { "name": "Sildenafil citrate vaginal suppository", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Kevin Hellman", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "35 Years", "sex": "FEMALE", "summary": "18 Years to 35 Years · Female only" }, "enrollment_count": 10, "start_date": "2026-10-01", "completion_date": "2027-07", "has_results": false, "last_update_posted_date": "2026-09-25", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 1, "location_summary": "Evanston, Illinois", "locations": [ { "city": "Evanston", "state": "Illinois" } ], "official_url": "https://clinicaltrials.gov/study/NCT07508358" }, { "nct_id": "NCT00645034", "title": "A Study to Investigate the Effects on Blood Pressure and Pulse Rate of a Single 100mg Dose of Sildenafil in Patients With Benign Prostatic Hyperplasia Who Are Being Treated With Doxazosin", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Benign Prostatic Hyperplasia" ], "interventions": [ { "name": "placebo", "type": "DRUG" }, { "name": "sildenafil", "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": "35 Years", "maximum_age": "75 Years", "sex": "MALE", "summary": "35 Years to 75 Years · Male only" }, "enrollment_count": 20, "start_date": "2002-11", "completion_date": "2003-07", "has_results": false, "last_update_posted_date": "2021-02-01", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 2, "location_summary": "Laguna Woods, California • Newport Beach, California", "locations": [ { "city": "Laguna Woods", "state": "California" }, { "city": "Newport Beach", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00645034" }, { "nct_id": "NCT00452582", "title": "Sildenafil (Viagra) Treatment of Subacute Ischemic Stroke", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Ischemic Stroke" ], "interventions": [ { "name": "Sildenafil (Viagra)", "type": "DRUG" }, { "name": "Usual care", "type": "OTHER" } ], "intervention_types": [ "DRUG", "OTHER" ], "sponsor": "Henry Ford Health System", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "80 Years", "sex": "ALL", "summary": "18 Years to 80 Years" }, "enrollment_count": 20, "start_date": "2005-04", "completion_date": null, "has_results": false, "last_update_posted_date": "2011-03-16", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 1, "location_summary": "Detroit, Michigan", "locations": [ { "city": "Detroit", "state": "Michigan" } ], "official_url": "https://clinicaltrials.gov/study/NCT00452582" }, { "nct_id": "NCT00746967", "title": "An Open-Label, Extension Study Evaluating the Safety, Toleration, and Efficacy of Sildenafil in Women With Sexual Arousal Disorder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Sexual Dysfunctions, Psychological", "Sexual Arousal Disorder" ], "interventions": [ { "name": "sildenafil", "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": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 267, "start_date": "2003-01", "completion_date": "2004-02", "has_results": false, "last_update_posted_date": "2021-02-01", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 82, "location_summary": "Huntsville, Alabama • Anchorage, Alaska • Tucson, Arizona + 68 more", "locations": [ { "city": "Huntsville", "state": "Alabama" }, { "city": "Anchorage", "state": "Alaska" }, { "city": "Anchorage", "state": "Alaska" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT00746967" }, { "nct_id": "NCT01616485", "title": "Study to Evaluate Hemodynamic Response to to a Sublingual Dose of Glyceryl Trinitrate in Subjects Receiving TA-1790, Sildenafil Citrate, and Placebo", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Erectile Dysfunction" ], "interventions": [ { "name": "TA-1790", "type": "DRUG" }, { "name": "Sildenafil citrate", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Nitrostat", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "VIVUS LLC", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "30 Years", "maximum_age": "60 Years", "sex": "MALE", "summary": "30 Years to 60 Years · Male only" }, "enrollment_count": 106, "start_date": "2004-03", "completion_date": "2004-05", "has_results": false, "last_update_posted_date": "2012-06-14", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 1, "location_summary": "Phoenix, Arizona", "locations": [ { "city": "Phoenix", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT01616485" }, { "nct_id": "NCT00223717", "title": "Treatment of Supine Hypertension in Autonomic Failure", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Hypertension" ], "interventions": [ { "name": "Clonidine", "type": "DRUG" }, { "name": "Nitroglycerin transdermal", "type": "DRUG" }, { "name": "Dipyridamole/ Aspirin (Aggrenox)", "type": "DRUG" }, { "name": "Desmopressin (DDAVP)", "type": "DRUG" }, { "name": "Sildenafil", "type": "DRUG" }, { "name": "Nifedipine", "type": "DRUG" }, { "name": "Hydralazine", "type": "DRUG" }, { "name": "Hydrochlorothiazide", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Bosentan", "type": "DRUG" }, { "name": "Diltiazem", "type": "DRUG" }, { "name": "Eplerenone", "type": "DRUG" }, { "name": "guanfacine", "type": "DRUG" }, { "name": "L-arginine", "type": "DIETARY_SUPPLEMENT" }, { "name": "captopril", "type": "DRUG" }, { "name": "carbidopa", "type": "DRUG" }, { "name": "losartan", "type": "DRUG" }, { "name": "metoprolol tartrate", "type": "DRUG" }, { "name": "nebivolol hydrochloride", "type": "DRUG" }, { "name": "prazosin hydrochloride", "type": "DRUG" }, { "name": "tamsulosin hydrochloride", "type": "DRUG" }, { "name": "Head-up tilt.", "type": "OTHER" }, { "name": "aliskiren", "type": "DRUG" }, { "name": "Local heat stress", "type": "OTHER" } ], "intervention_types": [ "DRUG", "DIETARY_SUPPLEMENT", "OTHER" ], "sponsor": "Vanderbilt University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "80 Years", "sex": "ALL", "summary": "18 Years to 80 Years" }, "enrollment_count": 152, "start_date": "2001-01", "completion_date": "2017-01", "has_results": false, "last_update_posted_date": "2017-10-13", "last_synced_at": "2026-10-07T16:34:01.527Z", "location_count": 1, "location_summary": "Nashville, Tennessee", "locations": [ { "city": "Nashville", "state": "Tennessee" } ], "official_url": "https://clinicaltrials.gov/study/NCT00223717" } ] }