{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Islatravir+%28ISL%29",
    "query": {
      "intervention": "Islatravir (ISL)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 24,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Islatravir+%28ISL%29&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-21T12:48:34.456Z",
  "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": "NCT07266831",
      "title": "A Clinical Study of Islatravir and Ulonivirine for People With HIV-1 Who Have Not Been Treated Before (MK-8591B-062)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Human Immunodeficiency Virus Type 1 (HIV-1) Infection"
      ],
      "interventions": [
        {
          "name": "ISL",
          "type": "DRUG"
        },
        {
          "name": "ULO",
          "type": "DRUG"
        },
        {
          "name": "BIC/FTC/TAF",
          "type": "DRUG"
        },
        {
          "name": "Placebo for BIC/FTC/TAF",
          "type": "DRUG"
        },
        {
          "name": "Placebo to ISL/ULO",
          "type": "DRUG"
        },
        {
          "name": "ISL/ULO",
          "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": 570,
      "start_date": "2025-12-18",
      "completion_date": "2031-12-18",
      "has_results": false,
      "last_update_posted_date": "2026-09-21",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 24,
      "location_summary": "Los Angeles, California • Denver, Colorado • Washington D.C., District of Columbia + 20 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Ft. Pierce",
          "state": "Florida"
        },
        {
          "city": "Miami Gardens",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07266831"
    },
    {
      "nct_id": "NCT04515641",
      "title": "Single-Dose Islatravir in Moderate Hepatic Impairment (MK-8591-030)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Human Immunodeficiency Virus (HIV) Infection"
      ],
      "interventions": [
        {
          "name": "Islatravir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 12,
      "start_date": "2020-11-05",
      "completion_date": "2021-09-13",
      "has_results": true,
      "last_update_posted_date": "2025-07-17",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04515641"
    },
    {
      "nct_id": "NCT04295772",
      "title": "Doravirine/Islatravir (DOR/ISL) in Pediatric Participants With Human Immunodeficiency Virus Type 1 (HIV-1) Who Are <18 Years of Age and Weigh ≥35 kg (MK-8591A-028)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV-1 Infection"
      ],
      "interventions": [
        {
          "name": "DOR/ISL",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "Up to 17 Years"
      },
      "enrollment_count": 42,
      "start_date": "2020-11-26",
      "completion_date": "2023-01-25",
      "has_results": true,
      "last_update_posted_date": "2024-01-31",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 4,
      "location_summary": "Washington D.C., District of Columbia • Atlanta, Georgia • Baltimore, Maryland + 1 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04295772"
    },
    {
      "nct_id": "NCT07086079",
      "title": "A Study of Doravirine/Islatravir in Healthy Lactating Females (MK-8591A-061)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "DOR/ISL",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 12,
      "start_date": "2025-09-26",
      "completion_date": "2026-02-04",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 1,
      "location_summary": "Springfield, Missouri",
      "locations": [
        {
          "city": "Springfield",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07086079"
    },
    {
      "nct_id": "NCT06719570",
      "title": "A Study of Doravirine and Islatravir as a Single Entity or Combination Therapy and the Effect of Food in Healthy Adult Participants (MK-8591A-055)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "MK-8591A",
          "type": "DRUG"
        },
        {
          "name": "Islatravir",
          "type": "DRUG"
        },
        {
          "name": "Doravine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "19 Years to 55 Years"
      },
      "enrollment_count": 24,
      "start_date": "2024-01-23",
      "completion_date": "2024-03-15",
      "has_results": false,
      "last_update_posted_date": "2024-12-06",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 1,
      "location_summary": "Lincoln, Nebraska",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06719570"
    },
    {
      "nct_id": "NCT04652700",
      "title": "Oral Islatravir (MK-8591) Once-Monthly as Preexposure Prophylaxis (PrEP) in Men and Transgender Women Who Are at High Risk for HIV-1 Infection (MK-8591-024)",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV Preexposure Prophylaxis"
      ],
      "interventions": [
        {
          "name": "ISL",
          "type": "DRUG"
        },
        {
          "name": "FTC/TDF",
          "type": "DRUG"
        },
        {
          "name": "FTC/TAF",
          "type": "DRUG"
        },
        {
          "name": "Placebo to ISL",
          "type": "DRUG"
        },
        {
          "name": "Placebo to FTC/TDF",
          "type": "DRUG"
        },
        {
          "name": "Placebo to FTC/TAF",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "16 Years and older · Male only"
      },
      "enrollment_count": 494,
      "start_date": "2021-03-15",
      "completion_date": "2023-08-04",
      "has_results": true,
      "last_update_posted_date": "2026-05-05",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 15,
      "location_summary": "Birmingham, Alabama • Los Angeles, California • San Francisco, California + 11 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04652700"
    },
    {
      "nct_id": "NCT04776252",
      "title": "Open-label, Follow-up of Doravirine/Islatravir (DOR/ISL 100 mg/0.75mg) for Participants With Human Immunodeficiency Virus-1 (HIV-1) Infection (MK-8591A-033)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV-1 Infection"
      ],
      "interventions": [
        {
          "name": "MK-8591A",
          "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": 2000,
      "start_date": "2021-09-15",
      "completion_date": "2029-05-29",
      "has_results": false,
      "last_update_posted_date": "2025-12-23",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 18,
      "location_summary": "Phoenix, Arizona • Sacramento, California • Washington D.C., District of Columbia + 13 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Ft. Pierce",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04776252"
    },
    {
      "nct_id": "NCT05052996",
      "title": "Study Evaluating the Safety and Efficacy of Islatravir in Combination With Lenacapavir in Virologically Suppressed People With HIV",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV-1 Infection"
      ],
      "interventions": [
        {
          "name": "ISL",
          "type": "DRUG"
        },
        {
          "name": "LEN",
          "type": "DRUG"
        },
        {
          "name": "B/F/TAF",
          "type": "DRUG"
        },
        {
          "name": "ISL/LEN FDC",
          "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": 142,
      "start_date": "2021-10-05",
      "completion_date": "2028-03",
      "has_results": true,
      "last_update_posted_date": "2026-02-04",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 44,
      "location_summary": "Beverly Hills, California • Los Angeles, California • Newport Beach, California + 33 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Palm Springs",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05052996"
    },
    {
      "nct_id": "NCT05705349",
      "title": "DOR/ISL in HIV-1 Antiretroviral Treatment-naïve Participants (MK-8591A-053)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "HIV-1 Infection"
      ],
      "interventions": [
        {
          "name": "DOR/ISL",
          "type": "DRUG"
        },
        {
          "name": "BIC/FTC/TAF",
          "type": "DRUG"
        },
        {
          "name": "Placebo to DOR/ISL",
          "type": "DRUG"
        },
        {
          "name": "Placebo to BIC/FTC/TAF",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Merck Sharp & Dohme LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 537,
      "start_date": "2023-03-08",
      "completion_date": "2029-08-05",
      "has_results": false,
      "last_update_posted_date": "2025-10-23",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 38,
      "location_summary": "Phoenix, Arizona • Beverly Hills, California • Los Angeles, California + 29 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05705349"
    },
    {
      "nct_id": "NCT04564547",
      "title": "Dose Ranging, Switch Study of Islatravir (MK-8591) and Ulonivirine (MK-8507) Once-Weekly in Virologically-Suppressed Adults With Human Immunodeficiency Virus Type 1 (HIV-1) [MK-8591-013]",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV-1 Infection"
      ],
      "interventions": [
        {
          "name": "Islatravir",
          "type": "DRUG"
        },
        {
          "name": "Ulonivirine",
          "type": "DRUG"
        },
        {
          "name": "BIC/FTC/TAF",
          "type": "DRUG"
        },
        {
          "name": "Placebo to ISL",
          "type": "DRUG"
        },
        {
          "name": "Placebo to Ulonivirine",
          "type": "DRUG"
        },
        {
          "name": "Placebo to BIC/FTC/TAF",
          "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": 161,
      "start_date": "2021-03-09",
      "completion_date": "2025-01-30",
      "has_results": true,
      "last_update_posted_date": "2026-01-26",
      "last_synced_at": "2026-09-21T12:48:34.456Z",
      "location_count": 10,
      "location_summary": "Phoenix, Arizona • Los Angeles, California • Ft. Pierce, Florida + 7 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Ft. Pierce",
          "state": "Florida"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Decatur",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04564547"
    }
  ]
}