{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+for+research+purposes",
    "query": {
      "intervention": "Blood sample collection for research purposes"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 51,
    "total_pages": 6,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+sample+collection+for+research+purposes&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-30T07:28:06.362Z",
  "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": "NCT00582296",
      "title": "Multi-Organ Screening Recommendations in Patients With Lynch Syndrome",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lynch Syndrome"
      ],
      "interventions": [
        {
          "name": "questionnaires, telephone interview, optional blood drawn",
          "type": "BEHAVIORAL"
        },
        {
          "name": "questionnaires, telephone interview and optional blood drawn",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Memorial Sloan Kettering 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": 1530,
      "start_date": "2004-12",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 8,
      "location_summary": "Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 5 more",
      "locations": [
        {
          "city": "Basking Ridge",
          "state": "New Jersey"
        },
        {
          "city": "Middletown",
          "state": "New Jersey"
        },
        {
          "city": "Montvale",
          "state": "New Jersey"
        },
        {
          "city": "Commack",
          "state": "New York"
        },
        {
          "city": "Harrison",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00582296"
    },
    {
      "nct_id": "NCT05672615",
      "title": "Mood Alterations in the Patients With Non-Muscle Invasive Bladder Cancer Treated With BCG",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Non-Muscle Invasive Bladder Cancer"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "OTHER"
        },
        {
          "name": "Daily Mood Diaries",
          "type": "OTHER"
        },
        {
          "name": "Urine Specimen Collection",
          "type": "OTHER"
        },
        {
          "name": "Research Blood Draw",
          "type": "OTHER"
        },
        {
          "name": "Utilize excess tissue from a standard of care procedure",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 42,
      "start_date": "2023-03-21",
      "completion_date": "2028-03",
      "has_results": false,
      "last_update_posted_date": "2025-11-18",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05672615"
    },
    {
      "nct_id": "NCT06183502",
      "title": "HIV/STD Risk and PrEP Implementation Messaging Among Gay, Bisexual, and Other Men Who Have Sex With Men",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Sexually Transmitted Infections",
        "Gay",
        "Pre Exposure Prophylaxis"
      ],
      "interventions": [
        {
          "name": "Quantitative survey",
          "type": "BEHAVIORAL"
        },
        {
          "name": "HIV and STI testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Qualitative Assessment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE"
      ],
      "sponsor": "Emory University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 675,
      "start_date": "2024-06-29",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2026-07-24",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 3,
      "location_summary": "San Diego, California • Atlanta, Georgia • Chicago, Illinois",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06183502"
    },
    {
      "nct_id": "NCT00919269",
      "title": "Collecting and Storing Tissue, Blood, and Bone Marrow Samples From Patients With Rhabdomyosarcoma or Other Soft Tissue Sarcoma",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adult Rhabdomyosarcoma",
        "Childhood Desmoplastic Small Round Cell Tumor",
        "Chordoma",
        "Desmoid-Type Fibromatosis",
        "Metastatic Childhood Soft Tissue Sarcoma",
        "Non-Metastatic Childhood Soft Tissue Sarcoma",
        "Previously Treated Childhood Rhabdomyosarcoma",
        "Recurrent Adult Soft Tissue Sarcoma",
        "Recurrent Childhood Rhabdomyosarcoma",
        "Recurrent Childhood Soft Tissue Sarcoma",
        "Rhabdomyosarcoma",
        "Stage I Adult Soft Tissue Sarcoma AJCC v7",
        "Stage II Adult Soft Tissue Sarcoma AJCC v7",
        "Stage III Adult Soft Tissue Sarcoma AJCC v7",
        "Stage IV Adult Soft Tissue Sarcoma AJCC v7",
        "Untreated Childhood Rhabdomyosarcoma"
      ],
      "interventions": [
        {
          "name": "Cytology Specimen Collection Procedure",
          "type": "OTHER"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Oncology Group",
      "sponsor_class": "NETWORK",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "Up to 50 Years"
      },
      "enrollment_count": 150,
      "start_date": "1999-03-15",
      "completion_date": "2023-09-30",
      "has_results": false,
      "last_update_posted_date": "2023-10-03",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 214,
      "location_summary": "Birmingham, Alabama • Phoenix, Arizona • Tucson, Arizona + 149 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00919269"
    },
    {
      "nct_id": "NCT07078604",
      "title": "A Cancer Vaccine (STEMVAC) in Combination With Chemotherapy for the Treatment of PD-L1 Negative Metastatic Triple-Negative Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Anatomic Stage IV Breast Cancer AJCC v8",
        "Metastatic Triple-Negative Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "CD105/Yb-1/SOX2/CDH3/MDM2-polyepitope Plasmid DNA Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Chemotherapy",
          "type": "DRUG"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Sargramostim",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Positron Emission Tomography (PET)",
          "type": "PROCEDURE"
        },
        {
          "name": "Image Guided Biopsy",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "University of Washington",
      "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": "2026-03-24",
      "completion_date": "2028-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07078604"
    },
    {
      "nct_id": "NCT02871050",
      "title": "Castleman Disease Collaborative Network Biobank",
      "overall_status": "WITHDRAWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Castleman Disease",
        "Castleman's Disease",
        "Giant Lymph Node Hyperplasia",
        "Angiofollicular Lymph Hyperplasia",
        "Angiofollicular Lymph Node Hyperplasia",
        "Angiofollicular Lymphoid Hyperplasia",
        "GLNH",
        "Hyperplasia",
        "Giant Lymph Node"
      ],
      "interventions": [
        {
          "name": "Sample Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Castleman Disease Collaborative Network",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 0,
      "start_date": "2016-06",
      "completion_date": "2018-06",
      "has_results": false,
      "last_update_posted_date": "2018-07-31",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02871050"
    },
    {
      "nct_id": "NCT00840567",
      "title": "Skin and Blood Research Samples From Healthy Volunteers and Patients With Hematologic Diseases",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Anemia, Sickle Cell"
      ],
      "interventions": [
        {
          "name": "Skin biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Blood draw & sample",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "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": 7,
      "start_date": "2009-02",
      "completion_date": "2010-10",
      "has_results": false,
      "last_update_posted_date": "2013-07-11",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00840567"
    },
    {
      "nct_id": "NCT07405515",
      "title": "Pathophysiology of Dysautonomia and Postural Tachycardia Syndrome (POTS) in Post-viral Syndromes and COVID-19",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "POTS",
        "POTS - Postural Orthostatic Tachycardia Syndrome",
        "Dysautonomia",
        "Autonomic Dysfunction"
      ],
      "interventions": [
        {
          "name": "Blood Sample Collection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 100,
      "start_date": "2024-02-02",
      "completion_date": "2027-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-02-12",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07405515"
    },
    {
      "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": "2026-09-30T07:28:06.362Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05874726"
    },
    {
      "nct_id": "NCT05837455",
      "title": "NeoTAILOR: ABiomarker-directed Approach to Guide Neoadjuvant Therapy for Patients With Stage II/III ER-positive, HER2-negative Breast Cancer",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Breast Cancer",
        "Cancer of the Breast"
      ],
      "interventions": [
        {
          "name": "VENTANA MIB-1 Ki67 assay",
          "type": "DEVICE"
        },
        {
          "name": "Oncotype DX® Recurrence Score",
          "type": "DEVICE"
        },
        {
          "name": "PAM50-based Prosigna breast cancer gene signature assay",
          "type": "DEVICE"
        },
        {
          "name": "Anastrozole",
          "type": "DRUG"
        },
        {
          "name": "Combination anthracycline and/or taxane based treatment",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "DRUG"
      ],
      "sponsor": "Washington University School of Medicine",
      "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": 81,
      "start_date": "2024-05-30",
      "completion_date": "2027-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-09-30T07:28:06.362Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05837455"
    }
  ]
}