{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fesoterodine+8mg", "query": { "intervention": "Fesoterodine 8mg" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 7, "total_pages": 1, "next_page_url": null, "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-26T13:38:25.947Z", "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": "NCT00536484", "title": "Fesoterodine Flexible Dose Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Overactive Bladder" ], "interventions": [ { "name": "Fesoterodine", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 896, "start_date": "2007-08", "completion_date": "2008-03", "has_results": true, "last_update_posted_date": "2009-09-15", "last_synced_at": "2026-09-26T13:38:25.947Z", "location_count": 95, "location_summary": "Mobile, Alabama • Chandler, Arizona • Peoria, Arizona + 81 more", "locations": [ { "city": "Mobile", "state": "Alabama" }, { "city": "Chandler", "state": "Arizona" }, { "city": "Peoria", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Rancho Cordova", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00536484" }, { "nct_id": "NCT00605319", "title": "An Open Label Study to Measure Efficacy of Fesoterodine (Toviaz) Post Surgery for Benign Prostatic Hyperplasia", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Bladder Outlet Obstruction" ], "interventions": [ { "name": "Toviaz (Fesoterodine)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Weill Medical College of Cornell University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "40 Years", "maximum_age": "99 Years", "sex": "MALE", "summary": "40 Years to 99 Years · Male only" }, "enrollment_count": 17, "start_date": "2010-01", "completion_date": "2013-01", "has_results": true, "last_update_posted_date": "2018-04-10", "last_synced_at": "2026-09-26T13:38:25.947Z", "location_count": 1, "location_summary": "New York, New York", "locations": [ { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00605319" }, { "nct_id": "NCT00611026", "title": "Clinical Trial to Evaluate the Efficacy and Safety of Fesoterodine in Comparison to Tolterodine Extended Release(ER)in Patients With Overactive Bladder.", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Overactive Bladder" ], "interventions": [ { "name": "Tolterodine ER", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" }, { "name": "Fesoterodine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 2417, "start_date": "2008-02", "completion_date": "2009-10", "has_results": true, "last_update_posted_date": "2011-02-02", "last_synced_at": "2026-09-26T13:38:25.947Z", "location_count": 102, "location_summary": "Enterprise, Alabama • Mobile, Alabama • Montgomery, Alabama + 85 more", "locations": [ { "city": "Enterprise", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" }, { "city": "Montgomery", "state": "Alabama" }, { "city": "Chandler", "state": "Arizona" }, { "city": "Peoria", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT00611026" }, { "nct_id": "NCT01161472", "title": "A Study to Assess the Cognitive Effects of Fesoterodine in Elderly Subjects", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Healthy" ], "interventions": [ { "name": "4mg fesoterodine", "type": "DRUG" }, { "name": "8mg fesoterodine", "type": "DRUG" }, { "name": "alprazolam 1mg", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "65 Years", "maximum_age": "85 Years", "sex": "ALL", "summary": "65 Years to 85 Years" }, "enrollment_count": 20, "start_date": "2010-07", "completion_date": "2010-09", "has_results": true, "last_update_posted_date": "2012-06-28", "last_synced_at": "2026-09-26T13:38:25.947Z", "location_count": 2, "location_summary": "Overland Park, Kansas", "locations": [ { "city": "Overland Park", "state": "Kansas" }, { "city": "Overland Park", "state": "Kansas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01161472" }, { "nct_id": "NCT01302067", "title": "A 12 Week Study to Confirm the Effectiveness of 8mg of Fesoterodine Compared to 4mg of Fesoterodine", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Overactive Bladder" ], "interventions": [ { "name": "Fesoterodine 8mg", "type": "DRUG" }, { "name": "Fesoterodine 4mg", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 2012, "start_date": "2011-05", "completion_date": "2012-11", "has_results": true, "last_update_posted_date": "2014-03-26", "last_synced_at": "2026-09-26T13:38:25.947Z", "location_count": 165, "location_summary": "Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 130 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Birmingham", "state": "Alabama" }, { "city": "Huntsville", "state": "Alabama" }, { "city": "Huntsville", "state": "Alabama" }, { "city": "Mobile", "state": "Alabama" } ], "official_url": "https://clinicaltrials.gov/study/NCT01302067" }, { "nct_id": "NCT01925456", "title": "Validation of Instruments for Pragmatic Clinical Trials for Overactive Bladder", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Overactive Bladder" ], "interventions": [ { "name": "Toviaz", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Pennsylvania", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 75, "start_date": "2011-05", "completion_date": "2013-12", "has_results": false, "last_update_posted_date": "2014-12-10", "last_synced_at": "2026-09-26T13:38:25.947Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT01925456" }, { "nct_id": "NCT00546637", "title": "Fesoterodine \"add-on\" Male Overactive Bladder Study", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Overactive Bladder Syndrome" ], "interventions": [ { "name": "Fesoterodine", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Pfizer", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "40 Years", "maximum_age": null, "sex": "MALE", "summary": "40 Years and older · Male only" }, "enrollment_count": 947, "start_date": "2007-11", "completion_date": "2009-02", "has_results": true, "last_update_posted_date": "2011-02-18", "last_synced_at": "2026-09-26T13:38:25.947Z", "location_count": 62, "location_summary": "Birmingham, Alabama • Gilbert, Arizona • Litchfield Park, Arizona + 53 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Gilbert", "state": "Arizona" }, { "city": "Gilbert", "state": "Arizona" }, { "city": "Litchfield Park", "state": "Arizona" }, { "city": "Mesa", "state": "Arizona" } ], "official_url": "https://clinicaltrials.gov/study/NCT00546637" } ] }