{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+blood+draws",
    "query": {
      "intervention": "Research blood draws"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 109,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+blood+draws&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-16T13:14:26.939Z",
  "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": "NCT05874726",
      "title": "Biological Sample Repository for Gastrointestinal Disorders",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity",
        "Obesity, Morbid",
        "Obesity, Primary",
        "Gastro-Intestinal Disorder",
        "Overweight and Obesity",
        "Overweight",
        "Overweight or Obesity",
        "Diabetes Type 2",
        "Diabetes Mellitus",
        "Diabetes Mellitus, Type 2",
        "Hypertension",
        "Hyperlipidemias",
        "Sleep Apnea",
        "GERD",
        "Gastroesophageal Reflux",
        "Musculoskeletal Pain Disorder",
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Blood Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Urine Collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Tissue Sample Collection",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Pichamol Jirapinyo, MD, MPH",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 500,
      "start_date": "2023-07-19",
      "completion_date": "2029-04",
      "has_results": false,
      "last_update_posted_date": "2025-12-02",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05874726"
    },
    {
      "nct_id": "NCT04306939",
      "title": "Genomic Resources for Enhancing Available Therapies (GREAT1.0) Study",
      "overall_status": "SUSPENDED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Chronic Pancreatitis",
        "Inflammatory Bowel Diseases",
        "Hepatitis",
        "NASH - Nonalcoholic Steatohepatitis",
        "Acute Pancreatitis",
        "Rheumatoid Arthritis",
        "Diabetes Mellitus",
        "Dyslipidemias",
        "Multiple Sclerosis",
        "Irritable Bowel Syndrome",
        "Chronic Pain",
        "Chronic Disease",
        "Chronic Kidney Diseases",
        "Crohn Disease",
        "Celiac Disease",
        "Biliary Cirrhosis",
        "Bile Acid Synthesis Defect",
        "Gastritis",
        "Cholecystitis",
        "Cholelithiases",
        "IPMN",
        "Cyst Pancreas",
        "Cystic Fibrosis",
        "Pancreatic Exocrine Insufficiency",
        "Diarrhea Chronic",
        "Constipation - Functional",
        "Constipation Chronic Idiopathic"
      ],
      "interventions": [
        {
          "name": "venipuncture",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Additional Sample Collections",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "12 Years and older"
      },
      "enrollment_count": 120000,
      "start_date": "2014-11-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04306939"
    },
    {
      "nct_id": "NCT00866879",
      "title": "Randomized Conversion of Calcineurin-Inhibitors in Renal Allograft Recipients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Renal Transplant Rejection"
      ],
      "interventions": [
        {
          "name": "Sirolimus",
          "type": "DRUG"
        },
        {
          "name": "Demographic Data, Medical History, and Donor Data",
          "type": "OTHER"
        },
        {
          "name": "Blood Draws for Control Group",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood Draws for Experimental Group",
          "type": "PROCEDURE"
        },
        {
          "name": "Donor Blood Draws",
          "type": "PROCEDURE"
        },
        {
          "name": "Donor Information",
          "type": "OTHER"
        },
        {
          "name": "Kidney Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 275,
      "start_date": "2007-06",
      "completion_date": "2019-03",
      "has_results": true,
      "last_update_posted_date": "2019-06-28",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00866879"
    },
    {
      "nct_id": "NCT05309655",
      "title": "Cardiac Outcomes With Near-Complete Estrogen Deprivation",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer",
        "Triple Negative Breast Cancer",
        "Cardiovascular Complications"
      ],
      "interventions": [
        {
          "name": "Adenosine Stress Cardiac Magnetic Resonance Imaging",
          "type": "DRUG"
        },
        {
          "name": "Electrocardiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Computed Tomography Angiogram",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Laboratory Testing",
          "type": "OTHER"
        },
        {
          "name": "Quality of Life Survey",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST",
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 90,
      "start_date": "2022-09-02",
      "completion_date": "2028-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-05",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 3,
      "location_summary": "Durham, North Carolina • Winston-Salem, North Carolina • Richmond, Virginia",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        },
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05309655"
    },
    {
      "nct_id": "NCT02530658",
      "title": "Next Generation Sequencing of Normal Tissues Prospectively in Pediatric Oncology Patients",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Solid, Liquid, Central Nervous System Tumors"
      ],
      "interventions": [
        {
          "name": "Study Introduction Visit",
          "type": "OTHER"
        },
        {
          "name": "Informed Consent Visit",
          "type": "OTHER"
        },
        {
          "name": "Informed Consent Follow-Up Visit",
          "type": "OTHER"
        },
        {
          "name": "Return of Results Conversation",
          "type": "OTHER"
        },
        {
          "name": "Return of Results Follow-Up Visits",
          "type": "OTHER"
        },
        {
          "name": "Blood Sample",
          "type": "PROCEDURE"
        },
        {
          "name": "Skin Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "St. Jude Children's Research Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 2500,
      "start_date": "2015-08-28",
      "completion_date": "2053-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-22",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Memphis, Tennessee",
      "locations": [
        {
          "city": "Memphis",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02530658"
    },
    {
      "nct_id": "NCT01203514",
      "title": "The Effects of Erythropoietin (EPO) on the Transfusion Requirements of Very Low Birth Weight Infants",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Infant, Newborn",
        "Infant, Low Birth Weight",
        "Infant, Small for Gestational Age",
        "Infant, Premature",
        "Anemia, Neonatal"
      ],
      "interventions": [
        {
          "name": "Erythropoietin",
          "type": "DRUG"
        },
        {
          "name": "Sham Comparator",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "NICHD Neonatal Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "24 Hours",
        "maximum_age": "96 Days",
        "sex": "ALL",
        "summary": "24 Hours to 96 Days"
      },
      "enrollment_count": 318,
      "start_date": "1997-08",
      "completion_date": "2000-08",
      "has_results": false,
      "last_update_posted_date": "2017-09-26",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 9,
      "location_summary": "New Haven, Connecticut • Washington D.C., District of Columbia • Atlanta, Georgia + 6 more",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01203514"
    },
    {
      "nct_id": "NCT07083557",
      "title": "Routine Validation and Reproducibility Testing of Laboratory Assays and Research Techniques Used for Endocrine, Cardiometabolic, and Musculoskeletal Disorder Research (VALD)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Obesity and Obesity-related Medical Conditions",
        "Diabetes",
        "Atherosclerotic Disease",
        "Heart Failure",
        "MASH",
        "Sarcopenia",
        "Osteoporosis",
        "Hyperparathyroidism",
        "Hypoparathyroidism",
        "Ischemic Heart Disease",
        "Cystic Fibrosis (CF)",
        "Chronic Kidney Disease(CKD)",
        "Osteopenia",
        "Cachexia"
      ],
      "interventions": [
        {
          "name": "Endothelial cell collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Bettina Mittendorfer",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 100,
      "start_date": "2027-01-01",
      "completion_date": "2030-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-07",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Columbia, Missouri",
      "locations": [
        {
          "city": "Columbia",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07083557"
    },
    {
      "nct_id": "NCT07191327",
      "title": "Testing Personalized High-Definition Transcranial Direct Current Stimulation (HD-tDCS) as a Treatment of Posterior Cortical Atrophy",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Posterior Cortical Atrophy"
      ],
      "interventions": [
        {
          "name": "HD-tDCS sessions",
          "type": "DEVICE"
        },
        {
          "name": "Sham HD-tDCS sessions",
          "type": "DEVICE"
        },
        {
          "name": "HD-tDCS sessions - Open-label (after randomized treatment)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 50,
      "start_date": "2026-01-28",
      "completion_date": "2029-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07191327"
    },
    {
      "nct_id": "NCT04570722",
      "title": "Ipsilateral Peripheral Intravenous Access Procedures (The iPIVAP Study)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer",
        "Melanoma",
        "Thoracic Cancer",
        "Lymphedema of Upper Arm"
      ],
      "interventions": [
        {
          "name": "Ipsilateral peripheral IV insertion",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3,
      "start_date": "2021-09-20",
      "completion_date": "2023-01-09",
      "has_results": false,
      "last_update_posted_date": "2023-04-25",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04570722"
    },
    {
      "nct_id": "NCT05423730",
      "title": "Alcohol and Breast Cancer (ABC) Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "ER+ Breast Cancer",
        "Breast Cancer",
        "Aromatase Inhibitors"
      ],
      "interventions": [
        {
          "name": "White Wine",
          "type": "OTHER"
        },
        {
          "name": "Grape Juice",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Beth Israel Deaconess Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "90 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 90 Years · Female only"
      },
      "enrollment_count": 23,
      "start_date": "2022-09-01",
      "completion_date": "2023-07-31",
      "has_results": true,
      "last_update_posted_date": "2024-12-20",
      "last_synced_at": "2026-09-16T13:14:26.939Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05423730"
    }
  ]
}