{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Atazanavir%2Fritonavir", "query": { "intervention": "Atazanavir/ritonavir" }, "page_size": 10 }, "pagination": { "page": 1, "page_size": 10, "total_count": 107, "total_pages": 11, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Atazanavir%2Fritonavir&page=2&page_size=10", "previous_page_url": null }, "source": "remote", "last_synced_at": "2026-09-26T08:54:34.015Z", "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": "NCT00054717", "title": "Randomized Evaluation of Strategic Intervention in Multidrug Resistant Patients With Tipranavir (RESIST)", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "Tipranavir", "type": "DRUG" }, { "name": "Ritonavir(r)", "type": "DRUG" }, { "name": "Comparator Protease Inhibitor (CPI)", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Boehringer Ingelheim", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 630, "start_date": "2003-01", "completion_date": null, "has_results": true, "last_update_posted_date": "2014-07-02", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 96, "location_summary": "Phoenix, Arizona • Tucson, Arizona • Berkeley, California + 67 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Tucson", "state": "Arizona" }, { "city": "Berkeley", "state": "California" }, { "city": "Beverly Hills", "state": "California" }, { "city": "Fountain Valley", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00054717" }, { "nct_id": "NCT01667978", "title": "The Effect of Protease Inhibitors on the Pharmacokinetics of Oral Norethindrone Contraception", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Pregnancy", "HIV", "AIDS" ], "interventions": [ { "name": "Norethindrone acetate", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "University of Southern California", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "44 Years", "sex": "FEMALE", "summary": "18 Years to 44 Years · Female only" }, "enrollment_count": 35, "start_date": "2012-06", "completion_date": "2014-09", "has_results": true, "last_update_posted_date": "2015-08-20", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 2, "location_summary": "Los Angeles, California", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01667978" }, { "nct_id": "NCT01479361", "title": "Antiretroviral Drug Interaction Study in Volunteers With HIV", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "HIV", "PCP", "Toxoplasmosis" ], "interventions": [ { "name": "Atovaquone 750 mg twice daily", "type": "DRUG" }, { "name": "Atovaquone 1500 mg twice daily", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "National Institutes of Health Clinical Center (CC)", "sponsor_class": "NIH", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "70 Years", "sex": "ALL", "summary": "18 Years to 70 Years" }, "enrollment_count": 36, "start_date": "2011-10-31", "completion_date": "2014-02-20", "has_results": false, "last_update_posted_date": "2018-07-05", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 1, "location_summary": "Bethesda, Maryland", "locations": [ { "city": "Bethesda", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT01479361" }, { "nct_id": "NCT00883935", "title": "GSK1349572 Drug Interaction Study With Atazanavir/Ritonavir and Atazanavir", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE1" ], "conditions": [ "Healthy Volunteer" ], "interventions": [ { "name": "GSK1349572", "type": "DRUG" }, { "name": "Atazanavir 300 mg", "type": "DRUG" }, { "name": "Atazanavir 400 mg", "type": "DRUG" }, { "name": "Ritonavir", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "GlaxoSmithKline", "sponsor_class": "INDUSTRY", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "18 Years to 65 Years" }, "enrollment_count": 24, "start_date": "2009-04", "completion_date": "2009-06", "has_results": false, "last_update_posted_date": "2009-06-22", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 1, "location_summary": "Austin, Texas", "locations": [ { "city": "Austin", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT00883935" }, { "nct_id": "NCT00720590", "title": "Effect of the HIV Protease Inhibitors Atazanavir and Lopinavir/Ritonavir on Cardiovascular Disease Risk Factors", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Endothelial Dysfunction" ], "interventions": [ { "name": "Atazanavir", "type": "DRUG" }, { "name": "Lopinavir/ritonavir", "type": "DRUG" }, { "name": "Placebo", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Indiana University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "65 Years", "sex": "MALE", "summary": "18 Years to 65 Years · Male only" }, "enrollment_count": 30, "start_date": "2003-11", "completion_date": "2006-10", "has_results": false, "last_update_posted_date": "2017-10-25", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 1, "location_summary": "Indianapolis, Indiana", "locations": [ { "city": "Indianapolis", "state": "Indiana" } ], "official_url": "https://clinicaltrials.gov/study/NCT00720590" }, { "nct_id": "NCT00525239", "title": "HIV Antiretroviral Drugs and Metabolism", "overall_status": "UNKNOWN", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "HIV Infections" ], "interventions": [ { "name": "ritonavir, lopinavir/ritonavir, atazanavir/ritonavir, efavirenz", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)", "sponsor_class": "NIH", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 60, "start_date": "2004-03", "completion_date": "2010-12", "has_results": false, "last_update_posted_date": "2011-03-16", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 1, "location_summary": "San Francisco, California", "locations": [ { "city": "San Francisco", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00525239" }, { "nct_id": "NCT02121795", "title": "Switch Study to Evaluate F/TAF in HIV-1 Positive Participants Who Are Virologically Suppressed on Regimens Containing FTC/TDF", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV-1 Infection" ], "interventions": [ { "name": "FTC/TDF", "type": "DRUG" }, { "name": "F/TAF", "type": "DRUG" }, { "name": "Allowed third antiretroviral agent", "type": "DRUG" }, { "name": "FTC/TDF Placebo", "type": "DRUG" }, { "name": "F/TAF Placebo", "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": 668, "start_date": "2014-05-06", "completion_date": "2019-03-01", "has_results": true, "last_update_posted_date": "2020-03-12", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 57, "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Beverly Hills, California + 40 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Beverly Hills", "state": "California" }, { "city": "Hayward", "state": "California" }, { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT02121795" }, { "nct_id": "NCT00708162", "title": "Multicenter, Randomized, Double-Blind, Double-Dummy, Phase 3 Study of the Safety and Efficacy of Elvitegravir Versus Raltegravir", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV Infection" ], "interventions": [ { "name": "Elvitegravir", "type": "DRUG" }, { "name": "Raltegravir", "type": "DRUG" }, { "name": "EVG placebo", "type": "DRUG" }, { "name": "RAL placebo", "type": "DRUG" }, { "name": "Background regimen", "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": 724, "start_date": "2008-07", "completion_date": "2015-04", "has_results": true, "last_update_posted_date": "2016-05-30", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 94, "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Beverly Hills, California + 59 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Beverly Hills", "state": "California" }, { "city": "Beverly Hills", "state": "California" }, { "city": "Fountain Valley", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT00708162" }, { "nct_id": "NCT01605084", "title": "Second-line Treatment of HIV-1 With Ritonavir Boosted Atazanavir or Darunavir With an Optimized NRTI Backbone", "overall_status": "WITHDRAWN", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "HIV" ], "interventions": [ { "name": "Atazanavir", "type": "DRUG" }, { "name": "Darunavir", "type": "DRUG" }, { "name": "Ritonavir", "type": "DRUG" }, { "name": "Optimized NRTI backbone", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Bristol-Myers Squibb", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 0, "start_date": "2012-06-30", "completion_date": "2014-08-31", "has_results": false, "last_update_posted_date": "2023-12-19", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 14, "location_summary": "Phoenix, Arizona • Little Rock, Arkansas • Los Angeles, California + 8 more", "locations": [ { "city": "Phoenix", "state": "Arizona" }, { "city": "Phoenix", "state": "Arizona" }, { "city": "Little Rock", "state": "Arkansas" }, { "city": "Los Angeles", "state": "California" }, { "city": "Sacramento", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01605084" }, { "nct_id": "NCT01232361", "title": "IMPAACT P1080: Psychiatric and Antiretroviral Medication Concentrations in HIV-infected and Uninfected Children and Adolescents", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "ADHD", "HIV" ], "interventions": [], "intervention_types": [], "sponsor": "International Maternal Pediatric Adolescent AIDS Clinical Trials Group", "sponsor_class": "NETWORK", "healthy_volunteers": false, "eligibility": { "minimum_age": "6 Years", "maximum_age": "25 Years", "sex": "ALL", "summary": "6 Years to 25 Years" }, "enrollment_count": 127, "start_date": "2010-10-08", "completion_date": "2016-07", "has_results": false, "last_update_posted_date": "2021-08-03", "last_synced_at": "2026-09-26T08:54:34.015Z", "location_count": 21, "location_summary": "Birmingham, Alabama • Long Beach, California • Los Angeles, California + 15 more", "locations": [ { "city": "Birmingham", "state": "Alabama" }, { "city": "Long Beach", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "Los Angeles", "state": "California" }, { "city": "San Diego", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT01232361" } ] }