{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+drawing+to+determine+drug+levels",
    "query": {
      "intervention": "Blood drawing to determine drug levels"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 12,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+drawing+to+determine+drug+levels&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T04:10:44.138Z",
  "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": "NCT01008319",
      "title": "Traditional Clomiphene Citrate Administration vs. Stair-step Approach",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Ovulatory Dysfunction",
        "Anovulation",
        "Ovulation Induction"
      ],
      "interventions": [
        {
          "name": "clomiphene citrate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 120,
      "start_date": "2009-10",
      "completion_date": "2015-11",
      "has_results": true,
      "last_update_posted_date": "2018-01-08",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01008319"
    },
    {
      "nct_id": "NCT00266058",
      "title": "Drug Interaction Study Between Antimalarial and Anti-HIV Medications",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "HIV Infections",
        "Malaria"
      ],
      "interventions": [
        {
          "name": "Lopinavir/Ritonavir, Efavirenz, Artemether/lumefantrine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "21 Years to 60 Years"
      },
      "enrollment_count": 33,
      "start_date": "2005-12",
      "completion_date": "2010-11",
      "has_results": false,
      "last_update_posted_date": "2013-06-06",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00266058"
    },
    {
      "nct_id": "NCT07227727",
      "title": "Endothelial Dysfunction After SCI",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Spinal Cord Injuries",
        "Endothelial Dysfunction"
      ],
      "interventions": [
        {
          "name": "Intra-arterial Infusion of Vasoactive Agents",
          "type": "PROCEDURE"
        },
        {
          "name": "Intra-arterial Vitamin C Infusion",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood Sampling",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Craig Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 40,
      "start_date": "2025-07-31",
      "completion_date": "2027-07-30",
      "has_results": false,
      "last_update_posted_date": "2025-11-14",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 1,
      "location_summary": "Englewood, Colorado",
      "locations": [
        {
          "city": "Englewood",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07227727"
    },
    {
      "nct_id": "NCT00179335",
      "title": "Comparative Pharmacokinetics (PK) Study of Efavirenz or Lopinavir/Ritonavir Between Older and Younger HIV-Infected Adults",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Blood drawing to determine drug levels",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Albert Einstein College of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 45,
      "start_date": "2003-08",
      "completion_date": "2006-09",
      "has_results": false,
      "last_update_posted_date": "2021-04-26",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 1,
      "location_summary": "The Bronx, New York",
      "locations": [
        {
          "city": "The Bronx",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00179335"
    },
    {
      "nct_id": "NCT02161770",
      "title": "Study to Assess the Blood Levels and Safety of AZD9291 in Patients With Advanced Solid Tumours and Normal Liver Function or Mild or Moderate Liver Impairment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Solid Tumours"
      ],
      "interventions": [
        {
          "name": "AZD9291 tablet dosing",
          "type": "DRUG"
        },
        {
          "name": "Pharmacokinetic sampling - AZD9291",
          "type": "PROCEDURE"
        },
        {
          "name": "Pharmacokinetic sampling - AZ5140 and AZ7550",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "AstraZeneca",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 30,
      "start_date": "2014-12-22",
      "completion_date": "2017-08-22",
      "has_results": false,
      "last_update_posted_date": "2019-03-08",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 5,
      "location_summary": "San Diego, California • Atlanta, Georgia • Detroit, Michigan + 2 more",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "San Antonio",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02161770"
    },
    {
      "nct_id": "NCT04146376",
      "title": "Von Willebrand Factor in Pregnancy (VIP) Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Von Willebrand Diseases"
      ],
      "interventions": [
        {
          "name": "Use of a postpartum diary and additional blood draws.",
          "type": "OTHER"
        },
        {
          "name": "VWF replacement therapy with Wilate",
          "type": "DRUG"
        },
        {
          "name": "Tranexamic acid",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 110,
      "start_date": "2019-10-12",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-12-18",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 11,
      "location_summary": "Aurora, Colorado • New Haven, Connecticut • Miami, Florida + 8 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Peoria",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04146376"
    },
    {
      "nct_id": "NCT07425236",
      "title": "Argus 2.0 Adoption Study",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes",
        "Diabetes Mellitus, Type 1 Diabetes",
        "Diabetes Mellitus, Type 2",
        "Prediabetes"
      ],
      "interventions": [
        {
          "name": "KOS Argus Continuous Glucose Monitoring System",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "KOS Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 100,
      "start_date": "2026-04-19",
      "completion_date": "2027-08-19",
      "has_results": false,
      "last_update_posted_date": "2026-02-20",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 1,
      "location_summary": "San Mateo, California",
      "locations": [
        {
          "city": "San Mateo",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07425236"
    },
    {
      "nct_id": "NCT02308904",
      "title": "Reproductive Capacity and Iron Burden in Thalassemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "THALASSEMIA MAJOR"
      ],
      "interventions": [
        {
          "name": "Blood Draw/Semen Exam",
          "type": "OTHER"
        },
        {
          "name": "Retrospective data/Chart Review/Relevant Clinical Results",
          "type": "OTHER"
        },
        {
          "name": "Pituitary MRI",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "UCSF Benioff Children's Hospital Oakland",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 59,
      "start_date": "2013-06-01",
      "completion_date": "2020-09-01",
      "has_results": false,
      "last_update_posted_date": "2020-12-23",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 1,
      "location_summary": "Oakland, California",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02308904"
    },
    {
      "nct_id": "NCT02216084",
      "title": "Phase 1 Dose Escalation, Single Dose Study to Assess Safety and Pharmacokinetics of BAX930 in Hereditary Thrombotic Thrombocytopenic Purpura (TTP)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Hereditary Thrombotic Thrombocytopenic Purpura (TTP)"
      ],
      "interventions": [
        {
          "name": "Recombinant ADAMTS13",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Baxalta now part of Shire",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "12 Years to 65 Years"
      },
      "enrollment_count": 16,
      "start_date": "2014-09-30",
      "completion_date": "2016-02-22",
      "has_results": false,
      "last_update_posted_date": "2021-05-05",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 3,
      "location_summary": "Dublin, Ohio • Portland, Oregon • Houston, Texas",
      "locations": [
        {
          "city": "Dublin",
          "state": "Ohio"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02216084"
    },
    {
      "nct_id": "NCT05458258",
      "title": "Studying Malnutrition And Sarcopenia In Older Adults With Acute Myeloid Leukemia",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Acute Myeloid Leukemia",
        "Leukemia, Myeloid"
      ],
      "interventions": [
        {
          "name": "Bioelectrical Impedence Analysis Device",
          "type": "DEVICE"
        },
        {
          "name": "6 Minute Walk Test",
          "type": "OTHER"
        },
        {
          "name": "Computed Tomography Scans to Measure Skeletal Muscular Index",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood Test/Blood Draw",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Hand Grip Strength Test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 239,
      "start_date": "2023-03-01",
      "completion_date": "2025-04-18",
      "has_results": false,
      "last_update_posted_date": "2025-04-30",
      "last_synced_at": "2026-10-06T04:10:44.138Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05458258"
    }
  ]
}