{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fosamprenavir%2FRitonavir", "query": { "intervention": "Fosamprenavir/Ritonavir" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 34, "total_pages": 4, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Fosamprenavir%2FRitonavir&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-29T22:37:03.555Z", "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": "NCT01252940", "title": "Study to Evaluate Switching From Regimens Consisting of a Ritonavir-boosted Protease Inhibitor (PI) and Two Nucleoside Reverse Transcriptase Inhibitors (NRTIs) to a Fixed-dose Tablet Containing Emtricitabine/Rilpivirine/Tenofovir DF", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV-1 Infection" ], "interventions": [ { "name": "FTC/RPV/TDF", "type": "DRUG" }, { "name": "PI", "type": "DRUG" }, { "name": "RTV", "type": "DRUG" }, { "name": "NRTIs", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Gilead Sciences", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 482, "start_date": "2010-11", "completion_date": "2014-10", "has_results": true, "last_update_posted_date": "2015-12-04", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 66, "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Little Rock, Arkansas + 45 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Beverly Hills", "state": "California" }, { "city": "Beverly Hills", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01252940" }, { "nct_id": "NCT00009061", "title": "Comparison of GW433908/Ritonavir to Nelfinavir When Used With Abacavir and Lamivudine in Patients That Have Not Taken Antiretroviral Drugs", "overall_status": "UNKNOWN", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Ritonavir", "type": "DRUG" }, { "name": "Abacavir sulfate", "type": "DRUG" }, { "name": "Nelfinavir mesylate", "type": "DRUG" }, { "name": "Lamivudine", "type": "DRUG" }, { "name": "GW433908", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Glaxo Wellcome", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "13 Years", "maximum_age": null, "sex": "ALL", "summary": "13 Years and older" }, "enrollment_count": 624, "start_date": "2000-11", "completion_date": null, "has_results": false, "last_update_posted_date": "2005-06-24", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 37, "location_summary": "Fountain Valley, California • Los Angeles, California • Sacramento, California + 31 more", "locations": [ { "city": "Fountain Valley", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Sacramento", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00009061" }, { "nct_id": "NCT00242840", "title": "Observational Study Of A Protease Inhibitor (PI) Containing Regimen In Subjects With PI Mutations Selected During Prior Treatment With GW433908 (Fosamprenavir)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Infection, Human Immunodeficiency Virus I", "HIV Infection" ], "interventions": [ { "name": "No intervention; Observational study", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "ViiV Healthcare", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "13 Years", "maximum_age": null, "sex": "ALL", "summary": "13 Years and older" }, "enrollment_count": 20, "start_date": "2003-06", "completion_date": "2006-01", "has_results": false, "last_update_posted_date": "2017-05-30", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 6, "location_summary": "Fort Lauderdale, Florida • Orlando, Florida • Tampa, Florida + 2 more", "locations": [ { "city": "Fort Lauderdale", "state": "Florida" }, { "city": "Orlando", "state": "Florida" }, { "city": "Tampa", "state": "Florida" }, { "city": "Atlanta", "state": "Georgia" }, { "city": "Atlanta", "state": "Georgia" } ], "official_url": "https://clinicaltrials.gov/study/NCT00242840" }, { "nct_id": "NCT00363142", "title": "A Study of an Investigational Regimen Combining FDA Approved HIV Drugs in HIV-Infected Subjects", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV Infection", "Infection, Human Immunodeficiency Virus" ], "interventions": [ { "name": "Half-boosted Fosamprenavir", "type": "DRUG" }, { "name": "Full Boosted Fosamprenavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 211, "start_date": "2006-05", "completion_date": "2008-06", "has_results": true, "last_update_posted_date": "2010-11-05", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 49, "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Beverly Hills, California + 39 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Beverly Hills", "state": "California" }, { "city": "Fountain Valley", "state": "California" }, { "city": "Garden Grove", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00363142" }, { "nct_id": "NCT00877591", "title": "Interaction of Buprenorphine With HIV Medications and Tuberculosis Medications", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Opioid Dependency", "HIV Infections" ], "interventions": [ { "name": "Fosamprenavir/Ritonavir", "type": "DRUG" }, { "name": "Darunavir/Ritonavir", "type": "DRUG" }, { "name": "Rifampin", "type": "DRUG" }, { "name": "Rifabutin", "type": "DRUG" }, { "name": "Buprenorphine", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of California, San Francisco", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 63, "start_date": "2008-04", "completion_date": "2013-04", "has_results": false, "last_update_posted_date": "2014-05-06", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00877591" }, { "nct_id": "NCT00624195", "title": "Clinical Trial of CNS-targeted HAART (CIT2)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "FDA Approved Antiretroviral Therapy (see list below)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of California, San Diego", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 59, "start_date": "2007-03", "completion_date": "2012-06", "has_results": true, "last_update_posted_date": "2014-04-23", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 5, "location_summary": "San Diego, California • San Francisco, California • Baltimore, Maryland + 2 more", "locations": [ { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Baltimore", "state": "Maryland" }, { "city": "St Louis", "state": "Missouri" }, { "city": "New York", "state": "New York" } ], "official_url": "https://clinicaltrials.gov/study/NCT00624195" }, { "nct_id": "NCT00756730", "title": "Lopinavir/r or Fosamprenavir/r Switch to Atazanavir/r or Darunavir/r", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "ATV/r", "type": "DRUG" }, { "name": "DRV/r", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Community Research Initiative of New England", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 49, "start_date": "2008-09", "completion_date": "2011-06", "has_results": true, "last_update_posted_date": "2017-08-21", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 11, "location_summary": "Phoenix, Arizona • Los Angeles, California • Orlando, Florida + 7 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Los Angeles", "state": "California" }, { "city": "Orlando", "state": "Florida" }, { "city": "Boston", "state": "Massachusetts" }, { "city": "Springfield", "state": "Massachusetts" } ], "official_url": "https://clinicaltrials.gov/study/NCT00756730" }, { "nct_id": "NCT00027339", "title": "Using Drug Levels and Drug Resistance Testing to Select Effective Anti-HIV Drug Combinations in Patients With Drug-resistant HIV", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "lopinavir/ritonavir", "type": "DRUG" }, { "name": "indinavir sulfate", "type": "DRUG" }, { "name": "tenofovir disoproxil fumarate", "type": "DRUG" }, { "name": "ritonavir", "type": "DRUG" }, { "name": "fosamprenavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "13 Years", "maximum_age": null, "sex": "ALL", "summary": "13 Years and older" }, "enrollment_count": 53, "start_date": null, "completion_date": "2005-06", "has_results": false, "last_update_posted_date": "2021-11-01", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 13, "location_summary": "Los Angeles, California • Palo Alto, California • Sacramento, California + 8 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Palo Alto", "state": "California" }, { "city": "Sacramento", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "Aurora", "state": "Colorado" } ], "official_url": "https://clinicaltrials.gov/study/NCT00027339" }, { "nct_id": "NCT00296504", "title": "A Study To Assess GW433908 (Fosamprenavir) Containing Regimens In HIV-1 Infected Subjects", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Infection, Human Immunodeficiency Virus" ], "interventions": [ { "name": "fosamprenavir (GW433908)", "type": "DRUG" }, { "name": "ritonavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "ViiV Healthcare", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "13 Years", "maximum_age": null, "sex": "ALL", "summary": "13 Years and older" }, "enrollment_count": 753, "start_date": "2001-11", "completion_date": "2010-10", "has_results": true, "last_update_posted_date": "2013-04-19", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 10, "location_summary": "Fountain Valley, California • San Francisco, California • Denver, Colorado + 6 more", "locations": [ { "city": "Fountain Valley", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "Denver", "state": "Colorado" }, { "city": "Fort Lauderdale", "state": "Florida" }, { "city": "Orlando", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00296504" }, { "nct_id": "NCT01010399", "title": "Boosted Lexiva With Lovaza Adjunctive Therapy in Hypertriglyceridemic, HIV-Infected Subjects", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Hypertriglyceridemia", "HIV Infection" ], "interventions": [ { "name": "Lovaza", "type": "DIETARY_SUPPLEMENT" }, { "name": "fosamprenavir/ritonavir", "type": "DRUG" } ], "intervention_types": [ "DIETARY_SUPPLEMENT", "DRUG" ], "sponsor": "Felizarta, Franco, M.D.", "sponsor_class": "INDIV", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 36, "start_date": "2009-09", "completion_date": "2010-11", "has_results": true, "last_update_posted_date": "2012-04-18", "last_synced_at": "2026-09-29T22:37:03.555Z", "location_count": 1, "location_summary": "Bakersfield, California", "locations": [ { "city": "Bakersfield", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01010399" } ] }