{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=58",
    "query": {
      "intervention": "Blood samples collected",
      "page": 58
    },
    "page_size": 10
  },
  "pagination": {
    "page": 58,
    "page_size": 10,
    "total_count": 4263,
    "total_pages": 427,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=59&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+samples+collected&page=57&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-17T08:43:27.531Z",
  "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": "NCT07781709",
      "title": "Understanding the Effects of Pulmonary Arterial Hypertension on Lean Muscle Mass-Substudy",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Arterial Hypertension"
      ],
      "interventions": [
        {
          "name": "Measurement of oxyhemoglobin and deoxyhemoglobin concentration pre and post- exercise at baseline and Week 12. Measurement of time to recovery of oxyhemglobin post-exercise at baseline and at Week 12.",
          "type": "DEVICE"
        },
        {
          "name": "Blood draw",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2026-09-30",
      "completion_date": "2029-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07781709"
    },
    {
      "nct_id": "NCT00741416",
      "title": "Biorepository: Indiana Health Study",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Coronary Artery Disease",
        "Heart Disease",
        "Healthy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Fairbanks Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1400,
      "start_date": "2008-06",
      "completion_date": "2013-06",
      "has_results": false,
      "last_update_posted_date": "2011-07-01",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 14,
      "location_summary": "Avon, Indiana • Brownsburg, Indiana • Franklin, Indiana + 6 more",
      "locations": [
        {
          "city": "Avon",
          "state": "Indiana"
        },
        {
          "city": "Brownsburg",
          "state": "Indiana"
        },
        {
          "city": "Franklin",
          "state": "Indiana"
        },
        {
          "city": "Greenfield",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00741416"
    },
    {
      "nct_id": "NCT06744595",
      "title": "Personalized Education and Genetic Counseling to Increase Genetic Testing in Patients With a Known Family History of Pancreatic Cancer",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pancreatic Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Educational Intervention",
          "type": "OTHER"
        },
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        },
        {
          "name": "Genetic Counseling",
          "type": "OTHER"
        },
        {
          "name": "Genetic Testing for Cancer Risk",
          "type": "GENETIC"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "GENETIC"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2025-02-12",
      "completion_date": "2026-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Jacksonville, Florida",
      "locations": [
        {
          "city": "Jacksonville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06744595"
    },
    {
      "nct_id": "NCT00001432",
      "title": "The Collection of Peripheral Blood Lymphocytes and Marrow Progenitor Cells From Normal Volunteers and Volunteers With Lymphoid or Hematologic Malignancies",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Myeloid Leukemia",
        "Healthy",
        "Hematologic Neoplasm",
        "Lymphoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 75,
      "start_date": "1995-03",
      "completion_date": "2003-11",
      "has_results": false,
      "last_update_posted_date": "2008-03-04",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00001432"
    },
    {
      "nct_id": "NCT06449287",
      "title": "Impact of Exogenous Ketones on Indices of Keto-Adaptation in Obese Subjects on Weight Reducing Diets.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ketogenic Diet",
        "Weight Loss"
      ],
      "interventions": [
        {
          "name": "Diet",
          "type": "OTHER"
        },
        {
          "name": "Blood Draw",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Ketone/Glucose Monitoring",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Body Composition",
          "type": "OTHER"
        },
        {
          "name": "Urine Analysis",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Neuropsychological Measures - ANAM",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BIOLOGICAL",
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 37,
      "start_date": "2018-07-05",
      "completion_date": "2019-08-21",
      "has_results": false,
      "last_update_posted_date": "2024-12-19",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06449287"
    },
    {
      "nct_id": "NCT05005221",
      "title": "Home-based Therapeutic Drug Monitoring in Kidney Transplantation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Kidney Transplant"
      ],
      "interventions": [
        {
          "name": "Automated text messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 41,
      "start_date": "2022-11-08",
      "completion_date": "2024-05-08",
      "has_results": true,
      "last_update_posted_date": "2025-02-27",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05005221"
    },
    {
      "nct_id": "NCT00207272",
      "title": "Use of MCT Oil for Enhancement of Weight Loss in Obese Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Weight Loss"
      ],
      "interventions": [
        {
          "name": "1170-1870 kcal/day liquid diet",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Gastric bypass surgery",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsy.visceral adipose tissue",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsy.omental adipose tissue",
          "type": "PROCEDURE"
        },
        {
          "name": "Biopsy. subcutaneous abdominal adipose tissue",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood sample",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE"
      ],
      "sponsor": "Boston Medical Center",
      "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": 24,
      "start_date": "2003-07",
      "completion_date": "2008-02",
      "has_results": false,
      "last_update_posted_date": "2008-05-26",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00207272"
    },
    {
      "nct_id": "NCT07634601",
      "title": "Elacestrant With Everolimus for the Treatment of Recurrent Advanced or Metastatic ER-Positive Endometrial Cancer",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Advanced Endometrial Carcinoma",
        "Metastatic Endometrial Carcinoma",
        "Recurrent Endometrial Carcinoma",
        "Stage III Endometrial Cancer",
        "Stage IV Endometrial Cancer"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Elacestrant",
          "type": "DRUG"
        },
        {
          "name": "Everolimus",
          "type": "DRUG"
        },
        {
          "name": "Magnetic Resonance Imaging",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Jonsson Comprehensive Cancer Center",
      "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": 50,
      "start_date": "2026-12-18",
      "completion_date": "2029-12-18",
      "has_results": false,
      "last_update_posted_date": "2026-06-09",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07634601"
    },
    {
      "nct_id": "NCT01710319",
      "title": "Mechanisms of Immunosurveillance for Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "blood draw",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 119,
      "start_date": "2012-09",
      "completion_date": "2016-07-07",
      "has_results": false,
      "last_update_posted_date": "2018-05-07",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01710319"
    },
    {
      "nct_id": "NCT06608511",
      "title": "Liquid Biomarker Study in Melanoma and Non-Melanoma Skin Cancers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Skin Cancer",
        "Melanoma (Skin Cancer)",
        "Basal Cell Carcinoma of Skin",
        "Basal Cell Carcinoma of Skin, Site Unspecified",
        "Cutaneous Squamous Cell Carcinoma (CSCC)",
        "Merkel Cell Carcinoma of Skin"
      ],
      "interventions": [
        {
          "name": "Blood draw for the laboratory assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 20,
      "start_date": "2024-12-11",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-05-29",
      "last_synced_at": "2026-10-17T08:43:27.531Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06608511"
    }
  ]
}