{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ritonavir+%28rtv%29&page=5", "query": { "intervention": "Ritonavir (rtv)", "page": 5 }, "page_size": 10 }, "pagination": { "page": 5, "page_size": 10, "total_count": 451, "total_pages": 46, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ritonavir+%28rtv%29&page=6&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ritonavir+%28rtv%29&page=4&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-14T16:57:30.895Z", "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": "NCT01276236", "title": "Effects of Maraviroc (MVC) on HIV-related Kaposi's Sarcoma (KS)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Kaposi's Sarcoma" ], "interventions": [ { "name": "Maraviroc", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of California, San Francisco", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 13, "start_date": "2011-03-09", "completion_date": "2015-04-30", "has_results": true, "last_update_posted_date": "2021-03-05", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01276236" }, { "nct_id": "NCT00000920", "title": "Fortovase (Saquinavir) Given With Low-Dose Ritonavir, Zidovudine, and Lamivudine to HIV-Positive Pregnant Women During and After Pregnancy and to Their Newborns", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "HIV Infections", "Pregnancy" ], "interventions": [ { "name": "Ritonavir", "type": "DRUG" }, { "name": "Saquinavir", "type": "DRUG" }, { "name": "Lamivudine", "type": "DRUG" }, { "name": "Zidovudine", "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": 24, "start_date": null, "completion_date": "2003-04", "has_results": false, "last_update_posted_date": "2021-10-29", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 14, "location_summary": "Los Angeles, California • Denver, Colorado • Washington D.C., District of Columbia + 9 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Denver", "state": "Colorado" }, { "city": "Washington D.C.", "state": "District of Columbia" }, { "city": "Miami", "state": "Florida" }, { "city": "Miami", "state": "Florida" } ], "official_url": "https://clinicaltrials.gov/study/NCT00000920" }, { "nct_id": "NCT02786537", "title": "Study of Oral Treatments for Hepatitis C", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Chronic Hepatitis C" ], "interventions": [ { "name": "SOF/LDV (sofosbuvir/ledipasvir)", "type": "DRUG" }, { "name": "PrOD (ombitasvir/paritaprevir/ritonavir with dasabuvir) (Phase 1 only)", "type": "DRUG" }, { "name": "EBR/GZR (elbasvir/grazoprevir)", "type": "DRUG" }, { "name": "Ribavirin", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Florida", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 1275, "start_date": "2016-06", "completion_date": "2020-09-02", "has_results": true, "last_update_posted_date": "2021-12-06", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 38, "location_summary": "Little Rock, Arkansas • Palo Alto, California • San Diego, California + 27 more", "locations": [ { "city": "Little Rock", "state": "Arkansas" }, { "city": "Palo Alto", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" }, { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02786537" }, { "nct_id": "NCT05953545", "title": "Peginterferon Lambda and Lonafarnib Boosted With Ritonavir 48-Week Combination Therapy for Delta Hepatitis", "overall_status": "WITHDRAWN", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Chronic Hepatitis Delta" ], "interventions": [ { "name": "Peginterferon Lambda", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "120 Years", "sex": "ALL", "summary": "18 Years to 120 Years" }, "enrollment_count": 0, "start_date": "2024-05-22", "completion_date": "2024-05-22", "has_results": false, "last_update_posted_date": "2024-05-23", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 1, "location_summary": "Bethesda, Maryland", "locations": [ { "city": "Bethesda", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT05953545" }, { "nct_id": "NCT00977756", "title": "IMPAACT P1058A: Pharmacokinetic Effects of New Antiretroviral Drugs on Children, Adolescents and Young Adults", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Raltegravir (RAL)", "type": "DRUG" }, { "name": "Atazanavir (ATV)", "type": "DRUG" }, { "name": "Ritonavir (RTV)", "type": "DRUG" }, { "name": "Tenofovir (TDF)", "type": "DRUG" }, { "name": "Etravirine (ETV)", "type": "DRUG" }, { "name": "Darunavir (DRV)", "type": "DRUG" }, { "name": "Maraviroc (MVC)", "type": "DRUG" }, { "name": "Lopinavir/ritonavir (LPV/r)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "International Maternal Pediatric Adolescent AIDS Clinical Trials Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "6 Years", "maximum_age": "21 Years", "sex": "ALL", "summary": "6 Years to 21 Years" }, "enrollment_count": 168, "start_date": "2002-08", "completion_date": "2014-03", "has_results": false, "last_update_posted_date": "2015-08-07", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 33, "location_summary": "Birmingham, Alabama • Long Beach, California • Los Angeles, California + 21 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Long Beach", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Diego", "state": "California" }, { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00977756" }, { "nct_id": "NCT00039741", "title": "Anti-HIV Drug Regimens and Treatment-Switching Guidelines in HIV Infected Children", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2", "PHASE3" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "NRTIs (ABC, FTC, FTC/TDF, 3TC, 3TC/AZT, d4T, TDF, ddC, AZT)", "type": "DRUG" }, { "name": "NNRTIs (EFV, NVP)", "type": "DRUG" }, { "name": "PIs (AMP, IDV, LPV/r, NFV, SQV, RTV)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "30 Days", "maximum_age": "18 Years", "sex": "ALL", "summary": "30 Days to 18 Years" }, "enrollment_count": 266, "start_date": "2002-08", "completion_date": "2010-03", "has_results": true, "last_update_posted_date": "2021-11-05", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 29, "location_summary": "Alhambra, California • Long Beach, California • Los Angeles, California + 22 more", "locations": [ { "city": "Alhambra", "state": "California" }, { "city": "Long Beach", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Oakland", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00039741" }, { "nct_id": "NCT01422369", "title": "Drug-Drug Interaction of Darunavir/Ritonavir on Pitavastatin", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE4" ], "conditions": [ "Healthy" ], "interventions": [ { "name": "Pitavastatin (NK-104)", "type": "DRUG" }, { "name": "Darunavir/Ritonavir (Prezista)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Kowa Research Institute, Inc.", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "45 Years", "sex": "ALL", "summary": "18 Years to 45 Years" }, "enrollment_count": 28, "start_date": "2011-04", "completion_date": "2011-06", "has_results": true, "last_update_posted_date": "2012-07-13", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 1, "location_summary": "Austin, Texas", "locations": [ { "city": "Austin", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT01422369" }, { "nct_id": "NCT01628094", "title": "ANNAPURNA: A Study of The Combination of RO5466731, RO5190591, Ritonavir and Copegus (Ribavirin) With or Without RO5024048 in Patients With Chronic Hepatitis C Who Are Either Treatment-Naïve or Have Previously Experienced a Null Response to Interferon-Based Treatment", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Hepatitis C, Chronic" ], "interventions": [ { "name": "RO5024048", "type": "DRUG" }, { "name": "RO5190591", "type": "DRUG" }, { "name": "RO5466731", "type": "DRUG" }, { "name": "ribavirin [Copegus]", "type": "DRUG" }, { "name": "ritonavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Hoffmann-La Roche", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 110, "start_date": "2012-06", "completion_date": "2013-11", "has_results": false, "last_update_posted_date": "2016-11-02", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 15, "location_summary": "La Jolla, California • Englewood, Colorado • South Miami, Florida + 11 more", "locations": [ { "city": "La Jolla", "state": "California" }, { "city": "Englewood", "state": "Colorado" }, { "city": "South Miami", "state": "Florida" }, { "city": "Marietta", "state": "Georgia" }, { "city": "Honolulu", "state": "Hawaii" } ], "official_url": "https://clinicaltrials.gov/study/NCT01628094" }, { "nct_id": "NCT01009437", "title": "Ritonavir and Its Effects on Biomarkers in Women Undergoing Surgery for Newly Diagnosed Breast Cancer", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Breast Cancer" ], "interventions": [ { "name": "ritonavir", "type": "DRUG" }, { "name": "therapeutic conventional surgery", "type": "PROCEDURE" } ], "intervention_types": [ "DRUG", "PROCEDURE" ], "sponsor": "Masonic Cancer Center, University of Minnesota", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "FEMALE", "summary": "18 Years and older · Female only" }, "enrollment_count": 28, "start_date": "2010-05-26", "completion_date": "2014-07", "has_results": false, "last_update_posted_date": "2017-12-05", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 2, "location_summary": "Minneapolis, Minnesota • Philadelphia, Pennsylvania", "locations": [ { "city": "Minneapolis", "state": "Minnesota" }, { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT01009437" }, { "nct_id": "NCT00262522", "title": "Study of Lopinavir/Ritonavir Tablets Versus Soft Gel Capsules and Once Daily Versus Twice Daily Administration, When Coadministered With Nucleoside Reverse Transcriptase Inhibitors in Antiretroviral Naive Human Immunodeficiency Virus Type 1 Infected Subjects", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Human Immunodeficiency Virus Infections" ], "interventions": [ { "name": "lopinavir/ritonavir (LPV/r) (tablet or capsule) with nucleoside reverse transcriptase inhibitors (NRTIs)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Abbott", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 664, "start_date": "2005-11", "completion_date": "2008-07", "has_results": true, "last_update_posted_date": "2012-02-06", "last_synced_at": "2026-10-14T16:57:30.895Z", "location_count": 30, "location_summary": "Phoenix, Arizona • Beverly Hills, California • Fountain Valley, California + 23 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Beverly Hills", "state": "California" }, { "city": "Fountain Valley", "state": "California" }, { "city": "Long Beach", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00262522" } ] }