{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ritonavir+%28rtv%29&page=16",
    "query": {
      "intervention": "Ritonavir (rtv)",
      "page": 16
    },
    "page_size": 10
  },
  "pagination": {
    "page": 16,
    "page_size": 10,
    "total_count": 451,
    "total_pages": 46,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ritonavir+%28rtv%29&page=17&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Ritonavir+%28rtv%29&page=15&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-16T00:30:03.478Z",
  "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": "NCT01668147",
      "title": "Efavirenz and Ritonavir on Human Brain P-Glycoprotein",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Drug Effects"
      ],
      "interventions": [
        {
          "name": "[11C] desmethyl-loperamide",
          "type": "DRUG"
        },
        {
          "name": "Control - no pretreatment",
          "type": "OTHER"
        },
        {
          "name": "Oral ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Oral efavirenz",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 13,
      "start_date": "2012-08",
      "completion_date": "2016-08",
      "has_results": true,
      "last_update_posted_date": "2020-01-22",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01668147"
    },
    {
      "nct_id": "NCT00000891",
      "title": "Immunologic and Virologic Consequences of Long-Term Highly Active Antiretroviral Therapy (HAART) in Subjects With Moderately Advanced HIV-1 Disease: A Follow-Up Study to ACTG 315",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Saquinavir",
          "type": "DRUG"
        },
        {
          "name": "Delavirdine mesylate",
          "type": "DRUG"
        },
        {
          "name": "Lamivudine",
          "type": "DRUG"
        },
        {
          "name": "Stavudine",
          "type": "DRUG"
        },
        {
          "name": "Zidovudine",
          "type": "DRUG"
        },
        {
          "name": "Didanosine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 34,
      "start_date": null,
      "completion_date": "2004-05",
      "has_results": false,
      "last_update_posted_date": "2021-11-04",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 3,
      "location_summary": "Denver, Colorado • Chicago, Illinois • Cleveland, Ohio",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00000891"
    },
    {
      "nct_id": "NCT01148004",
      "title": "The Influence of Ritonavir, Alone and in Combination With Lopinavir, on Fenofibric Acid Pharmacokinetics in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV",
        "Fenofibrate",
        "Protease Inhibitors",
        "Hypertriglyceridemia",
        "Glucuronosyltransferase"
      ],
      "interventions": [
        {
          "name": "Fenofibrate",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Lopinavir/Ritonavir",
          "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": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 25,
      "start_date": "2010-05-13",
      "completion_date": "2013-07-29",
      "has_results": false,
      "last_update_posted_date": "2019-12-09",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01148004"
    },
    {
      "nct_id": "NCT02140255",
      "title": "Very Early Intensive Treatment of Infants Living With HIV to Achieve HIV Remission",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [
        {
          "name": "Nucleoside Reverse Transcriptase Inhibitors (NRTIs)",
          "type": "DRUG"
        },
        {
          "name": "Nevirapine (NVP)",
          "type": "DRUG"
        },
        {
          "name": "Lopinavir/Ritonavir (LPV/r)",
          "type": "DRUG"
        },
        {
          "name": "Raltegravir (RAL)",
          "type": "DRUG"
        },
        {
          "name": "VRC01",
          "type": "DRUG"
        },
        {
          "name": "Dolutegravir (DTG)",
          "type": "DRUG"
        },
        {
          "name": "VRC07-523LS",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "48 Hours",
        "sex": "ALL",
        "summary": "Up to 48 Hours"
      },
      "enrollment_count": 1120,
      "start_date": "2015-01-23",
      "completion_date": "2031-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-09-09",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 21,
      "location_summary": "La Jolla, California • Los Angeles, California • Aurora, Colorado + 13 more",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02140255"
    },
    {
      "nct_id": "NCT00076414",
      "title": "The Effect of Lopinavir/Ritonavir on Endothelial Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Acetylcholine",
          "type": "DRUG"
        },
        {
          "name": "L-NMMA",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 30,
      "start_date": "2004-01",
      "completion_date": "2005-09",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00076414"
    },
    {
      "nct_id": "NCT00002178",
      "title": "A Phase IIIB Open-Label, Comparative Study to Evaluate Saquinavir Soft Gel Capsule (SGC) Treatment in Combination With Other Antiretrovirals in HIV-1 Infected Antiretroviral-Naive Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Nelfinavir mesylate",
          "type": "DRUG"
        },
        {
          "name": "Saquinavir",
          "type": "DRUG"
        },
        {
          "name": "Delavirdine mesylate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 375,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • Brookline, Massachusetts",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Brookline",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002178"
    },
    {
      "nct_id": "NCT00005118",
      "title": "The Safety and Effectiveness of Indinavir Plus Ritonavir Plus Two NRTIs in HIV-Infected Patients Who Need Early Intervention Treatment",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Indinavir sulfate",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 40,
      "location_summary": "Beverly Hills, California • Long Beach, California • Los Angeles, California + 29 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "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/NCT00005118"
    },
    {
      "nct_id": "NCT00006326",
      "title": "Safety and Effectiveness of 3 Anti-HIV Treatments in Patients Who Have Failed Previous Treatments Containing Nelfinavir",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Indinavir sulfate",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Delavirdine mesylate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Agouron Pharmaceuticals",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "0 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2000-08",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00006326"
    },
    {
      "nct_id": "NCT01591850",
      "title": "A Drug-Drug Interaction Study of Ketoconazole, Rifampicin and Ritonavir-Boosted Atazanavir With Single-Dose RO5093151 in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy Volunteer"
      ],
      "interventions": [
        {
          "name": "RO5093151",
          "type": "DRUG"
        },
        {
          "name": "atazanavir",
          "type": "DRUG"
        },
        {
          "name": "ketoconazole",
          "type": "DRUG"
        },
        {
          "name": "rifampicin",
          "type": "DRUG"
        },
        {
          "name": "ritonavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hoffmann-La Roche",
      "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": 51,
      "start_date": "2011-09",
      "completion_date": "2011-11",
      "has_results": false,
      "last_update_posted_date": "2016-11-02",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 1,
      "location_summary": "Merritt Island, Florida",
      "locations": [
        {
          "city": "Merritt Island",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01591850"
    },
    {
      "nct_id": "NCT01802918",
      "title": "Single Dose Escalation Study of GSK2838232 in Healthy Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Infection, Human Immunodeficiency Virus"
      ],
      "interventions": [
        {
          "name": "GSK2838232",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Ritonavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "GlaxoSmithKline",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 17,
      "start_date": "2013-02-18",
      "completion_date": "2013-11-21",
      "has_results": false,
      "last_update_posted_date": "2017-05-09",
      "last_synced_at": "2026-10-16T00:30:03.478Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01802918"
    }
  ]
}