{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Cytochrome+P450+Enzyme+Deficiency",
    "query": {
      "condition": "Cytochrome P450 Enzyme Deficiency"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 11,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Cytochrome+P450+Enzyme+Deficiency&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T01:50:20.047Z",
  "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": "NCT00207948",
      "title": "Optimizing Antiretroviral Therapy in HIV-Infected Children and Adolescents",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Dose adjustment of Kaletra",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Children's National Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "4 Years to 21 Years"
      },
      "enrollment_count": 4,
      "start_date": "2004-11",
      "completion_date": "2009-07",
      "has_results": false,
      "last_update_posted_date": "2015-08-05",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00207948"
    },
    {
      "nct_id": "NCT05631704",
      "title": "A Study to Investigate Safety, Tolerability, and Pharmacokinetics (PK) of VH4524184 and the Potential for Changes in Cytochrome P450 3A (CYP3A) Activity",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "VH4524184",
          "type": "DRUG"
        },
        {
          "name": "Midazolam",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "ViiV Healthcare",
      "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": 84,
      "start_date": "2022-12-02",
      "completion_date": "2023-07-27",
      "has_results": false,
      "last_update_posted_date": "2025-12-29",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05631704"
    },
    {
      "nct_id": "NCT02191358",
      "title": "YouScript IMPACT Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adverse Drug Events",
        "Adverse Drug Reactions",
        "Drug Interaction Potentiation",
        "Drug Metabolism, Poor, CYP2D6-RELATED",
        "Drug Metabolism, Poor, CYP2C19-RELATED",
        "Cytochrome P450 Enzyme Deficiency",
        "Cytochrome P450 CYP2D6 Enzyme Deficiency",
        "Cytochrome P450 CYP2C9 Enzyme Deficiency",
        "Cytochrome P450 CYP2C19 Enzyme Deficiency",
        "Cytochrome P450 CYP3A Enzyme Deficiency",
        "Poor Metabolizer Due to Cytochrome P450 CYP2C9 Variant",
        "Poor Metabolizer Due to Cytochrome P450 CYP2C19 Variant",
        "Poor Metabolizer Due to Cytochrome P450 CYP2D6 Variant"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Genelex Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 800,
      "start_date": "2014-10",
      "completion_date": "2015-08",
      "has_results": false,
      "last_update_posted_date": "2017-03-01",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 7,
      "location_summary": "Garden Grove, California • Denver, Colorado • Lexington, Kentucky + 3 more",
      "locations": [
        {
          "city": "Garden Grove",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Towson",
          "state": "Maryland"
        },
        {
          "city": "Fall River",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02191358"
    },
    {
      "nct_id": "NCT00362726",
      "title": "Drug Interaction Study With Atazanavir Administered With and Without Ritonavir and a Cytochrome P450 Substrate Rosiglitazone",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Rosiglitazone maleate",
          "type": "DRUG"
        },
        {
          "name": "Atazanavir Sulphate",
          "type": "DRUG"
        },
        {
          "name": "Atazanavir Sulphate + Rosiglitazone maleate",
          "type": "DRUG"
        },
        {
          "name": "Atazanavir Sulphate + Ritonavir",
          "type": "DRUG"
        },
        {
          "name": "Atazanavir Sulphate + Ritonavir + Rosiglitazone maleate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Bristol-Myers Squibb",
      "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": 14,
      "start_date": "2006-09",
      "completion_date": "2006-11",
      "has_results": false,
      "last_update_posted_date": "2011-04-08",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Hamilton, New Jersey",
      "locations": [
        {
          "city": "Hamilton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00362726"
    },
    {
      "nct_id": "NCT00245986",
      "title": "Effect of Genetics on Metabolism of Efavirenz",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Metabolism"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 350,
      "start_date": "2005-10-18",
      "completion_date": "2008-05-20",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00245986"
    },
    {
      "nct_id": "NCT00050180",
      "title": "Influence of the MDR1 Genotype on Blood Levels of Indinavir and Saquinavir in Healthy Volunteers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Healthy",
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Midazolam",
          "type": "DRUG"
        },
        {
          "name": "Indinavir",
          "type": "DRUG"
        },
        {
          "name": "Saquinavir",
          "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": 81,
      "start_date": "2002-11-22",
      "completion_date": "2007-08-24",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00050180"
    },
    {
      "nct_id": "NCT00002194",
      "title": "An Open-Label Study in HIV+ Patients to Determine the Effects of Nevirapine (Viramune) on the Pharmacokinetics of Clarithromycin and Activity of Cytochrome 3A4.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Erythromycin",
          "type": "DRUG"
        },
        {
          "name": "Nevirapine",
          "type": "DRUG"
        },
        {
          "name": "Clarithromycin",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boehringer Ingelheim",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 36,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2005-06-24",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00002194"
    },
    {
      "nct_id": "NCT02428660",
      "title": "Drug & Gene Interaction Risk Analysis With & Without Genetic Testing Among Patients Undergoing MTM",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cytochrome P450 CYP2D6 Enzyme Deficiency",
        "Poor Metabolizer Due to Cytochrome P450 CYP2D6 Variant",
        "Ultrarapid Metabolizer Due to Cytochrome P450 CYP2D6 Variant",
        "Extensive Metabolizer Due to Cytochrome P450 CYP2D6 Variant",
        "Cytochrome P450 CYP2C9 Enzyme Deficiency",
        "Cytochrome P450 CYP2C19 Enzyme Deficiency",
        "Drug Metabolism, Poor, CYP2D6-RELATED",
        "Drug Metabolism, Poor, CYP2C19-RELATED",
        "CYP2D6 Polymorphism"
      ],
      "interventions": [
        {
          "name": "Pharmacogenetic testing",
          "type": "GENETIC"
        },
        {
          "name": "Software-based drug & gene interaction risk analysis",
          "type": "OTHER"
        },
        {
          "name": "MTM",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "GENETIC",
        "OTHER"
      ],
      "sponsor": "Genelex Corporation",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "65 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "65 Years and older"
      },
      "enrollment_count": 341,
      "start_date": "2015-02",
      "completion_date": "2017-02",
      "has_results": false,
      "last_update_posted_date": "2017-02-23",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02428660"
    },
    {
      "nct_id": "NCT00054743",
      "title": "Differences in Blood Levels of Nevirapine in HIV-infected Patients in Uganda and the United States",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HIV Infection"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "National Institutes of Health Clinical Center (CC)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2003-02-06",
      "completion_date": "2011-04-28",
      "has_results": false,
      "last_update_posted_date": "2017-07-02",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00054743"
    },
    {
      "nct_id": "NCT05458102",
      "title": "Drug-Drug Interaction Study of Vesatolimod in Adults With HIV-1 Who Have Very Low or Undetectable Virus Levels",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Human Immunodeficiency Virus Type 1 (HIV-1) Infection"
      ],
      "interventions": [
        {
          "name": "Vesatolimod",
          "type": "DRUG"
        },
        {
          "name": "Cobicistat",
          "type": "DRUG"
        },
        {
          "name": "Voriconazole",
          "type": "DRUG"
        },
        {
          "name": "Rifabutin",
          "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": 18,
      "start_date": "2022-08-19",
      "completion_date": "2023-05-01",
      "has_results": true,
      "last_update_posted_date": "2024-12-03",
      "last_synced_at": "2026-05-22T01:50:20.047Z",
      "location_count": 5,
      "location_summary": "Long Beach, California • Miami, Florida • West Palm Beach, Florida + 1 more",
      "locations": [
        {
          "city": "Long Beach",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Marlton",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05458102"
    }
  ]
}