{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+blood+draw&page=5",
    "query": {
      "intervention": "Research blood draw",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 1002,
    "total_pages": 101,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+blood+draw&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Research+blood+draw&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-08T16:33:05.334Z",
  "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": "NCT05030038",
      "title": "Oral Aromatase Inhibitors Modify the Gut Microbiome",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Fecal swab collection",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Blood samples",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "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": 24,
      "start_date": "2022-03-29",
      "completion_date": "2025-07-28",
      "has_results": false,
      "last_update_posted_date": "2026-06-15",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05030038"
    },
    {
      "nct_id": "NCT00705185",
      "title": "Exploring a Potential Blood Test to Diagnose Major Depressive Disorder",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Major Depressive Disorder"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Massachusetts General Hospital",
      "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": 120,
      "start_date": "2008-04",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2010-06-08",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 5,
      "location_summary": "Farmington, Connecticut • Chicago, Illinois • Boston, Massachusetts + 2 more",
      "locations": [
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Cambridge",
          "state": "Massachusetts"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00705185"
    },
    {
      "nct_id": "NCT03934255",
      "title": "Circadian Mechanisms Underlying Non-Dipping Blood Pressure in Blacks",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Circadian Rhythm",
        "Blood Pressure"
      ],
      "interventions": [
        {
          "name": "Constant Routine Protocol",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2020-01-01",
      "completion_date": "2023-05-01",
      "has_results": false,
      "last_update_posted_date": "2023-06-08",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03934255"
    },
    {
      "nct_id": "NCT02407743",
      "title": "TEMporal PostOperative Pain Signatures",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pain, Postoperative"
      ],
      "interventions": [
        {
          "name": "Surgical patients' clinical progression",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Genetic markers",
          "type": "GENETIC"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "GENETIC"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 428,
      "start_date": "2015-08",
      "completion_date": "2020-08",
      "has_results": false,
      "last_update_posted_date": "2021-01-19",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02407743"
    },
    {
      "nct_id": "NCT06451120",
      "title": "Platelet Rich Plasma Injections In Young And Old Human Subjects",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Osteoarthritis",
        "Articular Cartilage",
        "Musculoskeletal Disorders"
      ],
      "interventions": [
        {
          "name": "Platelet-Rich Plasma (PRP) Injections",
          "type": "DRUG"
        },
        {
          "name": "Centrifuge",
          "type": "DEVICE"
        },
        {
          "name": "Control saline injection",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE"
      ],
      "sponsor": "University of California, San Francisco",
      "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": 60,
      "start_date": "2024-06-01",
      "completion_date": "2027-02-16",
      "has_results": false,
      "last_update_posted_date": "2026-09-08",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06451120"
    },
    {
      "nct_id": "NCT00882284",
      "title": "Hypotension in Neonates",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Infant, Newborn",
        "Hypotension",
        "Blood Pressure"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "NICHD Neonatal Research Network",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "72 Hours",
        "sex": "ALL",
        "summary": "Up to 72 Hours"
      },
      "enrollment_count": 820,
      "start_date": "2009-04",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2019-03-22",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 17,
      "location_summary": "Birmingham, Alabama • Palo Alto, California • New Haven, Connecticut + 13 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "New Haven",
          "state": "Connecticut"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00882284"
    },
    {
      "nct_id": "NCT03038633",
      "title": "A Trial to Evaluate the Safety and Tolerability of a Novel Medical Food for Management of Iron Deficiency Anemia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Iron Deficiency Anemia"
      ],
      "interventions": [
        {
          "name": "Novel Medical Food",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 2,
      "start_date": "2014-05",
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2017-01-31",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03038633"
    },
    {
      "nct_id": "NCT02995252",
      "title": "The HOPE Study: Characterizing Patients With Hepatitis B and C",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hepatitis B， Chronic",
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Blood draws",
          "type": "OTHER"
        },
        {
          "name": "Tenofovir Alafenamide",
          "type": "DRUG"
        },
        {
          "name": "Knowledge Index Questionnaire",
          "type": "OTHER"
        },
        {
          "name": "Liver transient elastography (FibroScan)",
          "type": "OTHER"
        },
        {
          "name": "Liver Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 550,
      "start_date": "2014-12",
      "completion_date": "2034-12",
      "has_results": false,
      "last_update_posted_date": "2026-07-01",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Falls Church, Virginia",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Falls Church",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02995252"
    },
    {
      "nct_id": "NCT02107755",
      "title": "Stereotactic Radiation Therapy and Ipilimumab in Treating Patients With Metastatic Melanoma",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Liver Metastases",
        "Lung Metastases",
        "Recurrent Melanoma",
        "Stage IV Melanoma",
        "Tumors Metastatic to Brain"
      ],
      "interventions": [
        {
          "name": "ipilimumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "stereotactic radiosurgery",
          "type": "RADIATION"
        },
        {
          "name": "laboratory biomarker analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 8,
      "start_date": "2014-09-05",
      "completion_date": "2021-08-16",
      "has_results": true,
      "last_update_posted_date": "2024-05-21",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02107755"
    },
    {
      "nct_id": "NCT05579847",
      "title": "Feasibility of a Smart-Phone App for Patients With Advanced Renal Cell Carcinoma Undergoing Combination Immunotherapy",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Renal Cell Carcinoma Stage IV"
      ],
      "interventions": [
        {
          "name": "mHealth Smart Phone Application",
          "type": "OTHER"
        },
        {
          "name": "eHEALS digital literacy test",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Weekly Quiz",
          "type": "BEHAVIORAL"
        },
        {
          "name": "European Organization for the Research and Treatment of Cancer Quality of Life Questionnaire",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Post Intervention Survey",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "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": "2022-10-19",
      "completion_date": "2024-11-04",
      "has_results": false,
      "last_update_posted_date": "2025-12-04",
      "last_synced_at": "2026-10-08T16:33:05.334Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05579847"
    }
  ]
}