{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Optimized+background+ARV",
    "query": {
      "intervention": "Optimized background ARV"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 6,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T15:01:23.151Z",
  "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": "NCT01026727",
      "title": "A Study to Assess the Long-term Efficacy (24 Weeks) of MPC-4326 in Combination With a 2-3 Drug OBR Relative to the Efficacy of a 3-4 Drug ARV Regimen in Treatment Experienced HIV-1 Infected Subjects Who Are Failing Current Antiretroviral Therapy",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "MPC-4326 plus a 2-3 drug optimized background regimen (OBR)",
          "type": "DRUG"
        },
        {
          "name": "3-4 commercially available antiretroviral drugs",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Myrexis Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2,
      "start_date": "2009-11",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2010-06-14",
      "last_synced_at": "2026-09-02T15:01:23.151Z",
      "location_count": 21,
      "location_summary": "Beverly Hills, California • Los Angeles, California • San Francisco, California + 16 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01026727"
    },
    {
      "nct_id": "NCT04150068",
      "title": "Study to Evaluate the Safety and Efficacy of Lenacapavir (GS-6207) in Combination With an Optimized Background Regimen (OBR) in Heavily Treatment Experienced Participants Living With HIV-1 Infection With Multidrug Resistance",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "HIV-1-infection"
      ],
      "interventions": [
        {
          "name": "Oral Lenacapavir",
          "type": "DRUG"
        },
        {
          "name": "Oral Lenacapavir Placebo",
          "type": "DRUG"
        },
        {
          "name": "Subcutaneous Lenacapavir",
          "type": "DRUG"
        },
        {
          "name": "Failing ARV Regimen",
          "type": "DRUG"
        },
        {
          "name": "Optimized Background Regimen (OBR)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Gilead Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 72,
      "start_date": "2019-11-21",
      "completion_date": "2027-01",
      "has_results": true,
      "last_update_posted_date": "2026-03-13",
      "last_synced_at": "2026-09-02T15:01:23.151Z",
      "location_count": 35,
      "location_summary": "Los Angeles, California • Palm Springs, California • Sacramento, California + 28 more",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Palm Springs",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04150068"
    },
    {
      "nct_id": "NCT01504841",
      "title": "Evaluating the Safety and Tolerability of Etravirine in HIV-1 Infected Infants and Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Etravirine (ETR)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "2 Months",
        "maximum_age": "6 Years",
        "sex": "ALL",
        "summary": "2 Months to 6 Years"
      },
      "enrollment_count": 26,
      "start_date": "2013-03-14",
      "completion_date": "2020-08-26",
      "has_results": true,
      "last_update_posted_date": "2021-11-02",
      "last_synced_at": "2026-09-02T15:01:23.151Z",
      "location_count": 4,
      "location_summary": "Miami, Florida • Chicago, Illinois • The Bronx, New York",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        },
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01504841"
    },
    {
      "nct_id": "NCT00488059",
      "title": "A Study of Fuzeon (Enfuvirtide) With an Integrase Inhibitor Plus Optimized Background in Treatment-Experienced HIV-1 Infected Patients",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "enfuvirtide [Fuzeon]",
          "type": "DRUG"
        },
        {
          "name": "Optimized background ARV",
          "type": "DRUG"
        },
        {
          "name": "Integrase inhibitor",
          "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": 29,
      "start_date": "2007-06",
      "completion_date": "2008-10",
      "has_results": true,
      "last_update_posted_date": "2011-07-22",
      "last_synced_at": "2026-09-02T15:01:23.151Z",
      "location_count": 41,
      "location_summary": "Hobson City, Alabama • Phoenix, Arizona • Los Angeles, California + 33 more",
      "locations": [
        {
          "city": "Hobson City",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00488059"
    },
    {
      "nct_id": "NCT00056641",
      "title": "Dual Boosted - Protease Inhibitor (PI) Pharmacokinetics (PK) Trial (Tipranavir / Ritonavir) in Highly Treatment-experienced HIV-1 Infected Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "tipranavir",
          "type": "DRUG"
        },
        {
          "name": "ritonavir",
          "type": "DRUG"
        },
        {
          "name": "saquinavir",
          "type": "DRUG"
        },
        {
          "name": "amprenavir",
          "type": "DRUG"
        },
        {
          "name": "lopinavir",
          "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": 328,
      "start_date": "2003-02-18",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2023-12-01",
      "last_synced_at": "2026-09-02T15:01:23.151Z",
      "location_count": 34,
      "location_summary": "Phoenix, Arizona • Berkeley, California • Fountain Valley, California + 28 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Berkeley",
          "state": "California"
        },
        {
          "city": "Fountain Valley",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00056641"
    },
    {
      "nct_id": "NCT04648280",
      "title": "Safety and Pharmacokinetics Evaluation of Fostemsavir + (OBT) in HIV-1 Infected Children and Adolescents Who Are Failing Their cART and Have Dual- or Triple-class Antiretroviral Resistance",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "HIV Infections With Multi Drug Resistant Virus"
      ],
      "interventions": [
        {
          "name": "Fostemsavir",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "PENTA Foundation",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 60,
      "start_date": "2022-06-30",
      "completion_date": "2028-12",
      "has_results": false,
      "last_update_posted_date": "2026-03-05",
      "last_synced_at": "2026-09-02T15:01:23.151Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04648280"
    }
  ]
}