{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=peripheral+blood+sampling",
    "query": {
      "intervention": "peripheral blood sampling"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 479,
    "total_pages": 48,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=peripheral+blood+sampling&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-08T15:01:39.882Z",
  "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": "NCT02960568",
      "title": "Genetic Variability in CYP2D6 in U.S Active Duty Population",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Pharmacologic Action"
      ],
      "interventions": [
        {
          "name": "Primaquine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Walter Reed Army Institute of Research (WRAIR)",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 550,
      "start_date": "2016-01-08",
      "completion_date": "2017-08",
      "has_results": false,
      "last_update_posted_date": "2021-10-20",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Silver Spring, Maryland",
      "locations": [
        {
          "city": "Silver Spring",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02960568"
    },
    {
      "nct_id": "NCT05584397",
      "title": "Comparing Immune Activation and Latent HIV Reservoir Size Between People Living With HIV on Tenofovir-containing Versus NRTI-free ART",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HIV-1-infection",
        "HIV Disease Progression",
        "Inflammation",
        "HIV"
      ],
      "interventions": [
        {
          "name": "Venipuncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Targeted physical medical exam",
          "type": "PROCEDURE"
        },
        {
          "name": "Urine pregnancy test",
          "type": "PROCEDURE"
        },
        {
          "name": "Anoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Esophagogastroduodenoscopy (EGD)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2022-09-01",
      "completion_date": "2026-08-28",
      "has_results": false,
      "last_update_posted_date": "2026-04-29",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05584397"
    },
    {
      "nct_id": "NCT01305291",
      "title": "Fibersol-2 Clinical Trials Related to Appetite",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lack of Satiety"
      ],
      "interventions": [
        {
          "name": "placebo",
          "type": "OTHER"
        },
        {
          "name": "digestion-resistant maltodextrin",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "Iowa State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "62 Years",
        "sex": "ALL",
        "summary": "18 Years to 62 Years"
      },
      "enrollment_count": 20,
      "start_date": "2008-11",
      "completion_date": "2009-11",
      "has_results": false,
      "last_update_posted_date": "2011-02-28",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Ames, Iowa",
      "locations": [
        {
          "city": "Ames",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01305291"
    },
    {
      "nct_id": "NCT01485731",
      "title": "Safety Study of Nelfinavir + Cisplatin + Pelvic Radiation Therapy to Treat Cervical Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cervical Cancer"
      ],
      "interventions": [
        {
          "name": "Nelfinavir",
          "type": "DRUG"
        },
        {
          "name": "Cisplatin",
          "type": "DRUG"
        },
        {
          "name": "Pelvic External Beam Radiation Therapy",
          "type": "RADIATION"
        },
        {
          "name": "Brachytherapy",
          "type": "RADIATION"
        },
        {
          "name": "Pharmacokinetic Sampling",
          "type": "PROCEDURE"
        },
        {
          "name": "Cervical Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Pelvic Examination",
          "type": "PROCEDURE"
        },
        {
          "name": "Pap Smear",
          "type": "PROCEDURE"
        },
        {
          "name": "Audiogram",
          "type": "PROCEDURE"
        },
        {
          "name": "Proctoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Cytoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Renal Ultrasound",
          "type": "PROCEDURE"
        },
        {
          "name": "CT Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Whole Body PET/CT Scan",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE"
      ],
      "sponsor": "University of Miami",
      "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": 8,
      "start_date": "2012-01",
      "completion_date": "2015-02",
      "has_results": false,
      "last_update_posted_date": "2015-06-03",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01485731"
    },
    {
      "nct_id": "NCT04037605",
      "title": "Hormonal Mechanisms of Sleep Restriction - Axis Study in Older Men and Postmenopausal Women",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Sleep Restriction"
      ],
      "interventions": [
        {
          "name": "Ketoconazole Pill (also known as nizoral)",
          "type": "DRUG"
        },
        {
          "name": "Ganirelix",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone Pill",
          "type": "DRUG"
        },
        {
          "name": "Dexamethasone injection",
          "type": "DRUG"
        },
        {
          "name": "Cosyntropin Injectable Product",
          "type": "DRUG"
        },
        {
          "name": "Recombinant Human Luteinizing Hormone (also known as luveris)",
          "type": "DRUG"
        },
        {
          "name": "Hydrocortisone Injection (also known as solu-cortef)",
          "type": "DRUG"
        },
        {
          "name": "Gonadorelin (also known as Lutrepulse)",
          "type": "DRUG"
        },
        {
          "name": "Corticorelin (also known as Acthrel)",
          "type": "DRUG"
        },
        {
          "name": "Placebo oral tablet",
          "type": "DRUG"
        },
        {
          "name": "Saline Solution",
          "type": "DRUG"
        },
        {
          "name": "Saline solution for injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "60 Years to 80 Years"
      },
      "enrollment_count": 5,
      "start_date": "2020-02-09",
      "completion_date": "2026-06-24",
      "has_results": false,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Torrance, California",
      "locations": [
        {
          "city": "Torrance",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04037605"
    },
    {
      "nct_id": "NCT04198753",
      "title": "Skin Characteristics of Parents of Food Allergic Pediatric Patients",
      "overall_status": "SUSPENDED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Food Allergy in Children"
      ],
      "interventions": [
        {
          "name": "Skin tape stripping",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Skin barrier assessment",
          "type": "DEVICE"
        },
        {
          "name": "Blood draw",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "DEVICE"
      ],
      "sponsor": "National Jewish Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 160,
      "start_date": "2020-01-23",
      "completion_date": "2020-10-06",
      "has_results": false,
      "last_update_posted_date": "2020-04-13",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04198753"
    },
    {
      "nct_id": "NCT03728842",
      "title": "Spontaneous Regression in Metastatic Melanoma and Renal Cell Carcinoma",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Melanoma; Renal Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Blood collection for laboratory studies",
          "type": "OTHER"
        },
        {
          "name": "Data collection from medical record",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 19,
      "start_date": "2004-01-04",
      "completion_date": "2027-03-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-27",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03728842"
    },
    {
      "nct_id": "NCT01171131",
      "title": "A Pilot Study to Identify Biomarkers Associated With Chronic Traumatic Brain Injury",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Traumatic Brain Injury"
      ],
      "interventions": [
        {
          "name": "Blood/saliva sampling",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 96,
      "start_date": "2010-04",
      "completion_date": "2016-03-03",
      "has_results": false,
      "last_update_posted_date": "2026-06-16",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01171131"
    },
    {
      "nct_id": "NCT00133900",
      "title": "Circulating Tumor Cells and Survival in Hormone Refractory Prostate Cancer (HRPC) Patients Receiving Chemotherapy",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hormone Refractory Prostate Cancer",
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Phlebotomy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "Immunicon",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 276,
      "start_date": "2004-12",
      "completion_date": "2009-02",
      "has_results": false,
      "last_update_posted_date": "2009-07-28",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00133900"
    },
    {
      "nct_id": "NCT03567837",
      "title": "Fructose-induced Hepatic De Novo Lipogenesis in Adolescents With Obesity",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Adolescent Obesity"
      ],
      "interventions": [
        {
          "name": "Fructose + Glucose Beverage",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "The Rogosin Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "12 Years to 21 Years"
      },
      "enrollment_count": 12,
      "start_date": "2018-08-13",
      "completion_date": "2019-06-04",
      "has_results": false,
      "last_update_posted_date": "2024-03-15",
      "last_synced_at": "2026-09-08T15:01:39.882Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03567837"
    }
  ]
}