{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+and+urine+samples+collection",
    "query": {
      "intervention": "Blood and urine samples collection"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 158,
    "total_pages": 16,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Blood+and+urine+samples+collection&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T20:07:25.442Z",
  "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": "NCT01973140",
      "title": "Effects of Tolvaptan in Healthy Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Tolvaptan",
          "type": "DRUG"
        },
        {
          "name": "Hypertonic saline infusion",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "MALE",
        "summary": "21 Years to 55 Years · Male only"
      },
      "enrollment_count": 17,
      "start_date": "2013-11",
      "completion_date": "2016-03",
      "has_results": false,
      "last_update_posted_date": "2016-09-28",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01973140"
    },
    {
      "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": "2026-09-27T20:07:25.442Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05874726"
    },
    {
      "nct_id": "NCT03310684",
      "title": "Pediatric Primary Hypertension and the Renin-Angiotensin System (PHRAS)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pediatric Disorder",
        "Pediatric Obesity",
        "Primary Hypertension"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "5 Years to 17 Years"
      },
      "enrollment_count": 35,
      "start_date": "2018-12-03",
      "completion_date": "2023-04-26",
      "has_results": false,
      "last_update_posted_date": "2025-02-28",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03310684"
    },
    {
      "nct_id": "NCT03752528",
      "title": "Evaluation of Long-term Buprenorphine Plasma Exposure",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Opioid-use Disorder"
      ],
      "interventions": [
        {
          "name": "Blood sample collection",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Urine sample collection",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Indivior Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 53,
      "start_date": "2019-02-19",
      "completion_date": "2019-07-18",
      "has_results": true,
      "last_update_posted_date": "2020-08-21",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 11,
      "location_summary": "Hamilton, Alabama • Tampa, Florida • Prairie Village, Kansas + 7 more",
      "locations": [
        {
          "city": "Hamilton",
          "state": "Alabama"
        },
        {
          "city": "Tampa",
          "state": "Florida"
        },
        {
          "city": "Prairie Village",
          "state": "Kansas"
        },
        {
          "city": "Watertown",
          "state": "Massachusetts"
        },
        {
          "city": "Berlin",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03752528"
    },
    {
      "nct_id": "NCT05828069",
      "title": "A Study With Tovorafenib (DAY101) as a Treatment Option for Progressive, Relapsed, or Refractory Langerhans Cell Histiocytosis",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Recurrent Langerhans Cell Histiocytosis",
        "Refractory Langerhans Cell Histiocytosis"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Aspiration",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Marrow Biopsy",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Echocardiography Test",
          "type": "PROCEDURE"
        },
        {
          "name": "FDG-Positron Emission Tomography and Computed Tomography Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Lumbar Puncture",
          "type": "PROCEDURE"
        },
        {
          "name": "Multigated Acquisition Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Tovorafenib",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "DRUG"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "180 Days",
        "maximum_age": "22 Years",
        "sex": "ALL",
        "summary": "180 Days to 22 Years"
      },
      "enrollment_count": 48,
      "start_date": "2024-03-28",
      "completion_date": "2028-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-25",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 107,
      "location_summary": "Birmingham, Alabama • Little Rock, Arkansas • Downey, California + 84 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Downey",
          "state": "California"
        },
        {
          "city": "Loma Linda",
          "state": "California"
        },
        {
          "city": "Long Beach",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05828069"
    },
    {
      "nct_id": "NCT04410302",
      "title": "Patient-Derived Xenografts to Reduce Cancer Health Disparities",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Bladder Carcinoma",
        "Gastric Carcinoma",
        "Liver and Intrahepatic Bile Duct Carcinoma",
        "Lung Carcinoma",
        "Malignant Neoplasm"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "21 Years to 100 Years"
      },
      "enrollment_count": 500,
      "start_date": "2019-11-12",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 2,
      "location_summary": "Orange, California • Sacramento, California",
      "locations": [
        {
          "city": "Orange",
          "state": "California"
        },
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04410302"
    },
    {
      "nct_id": "NCT00027326",
      "title": "Collection of Blood and Urine From Patients Undergoing Radiation Therapy",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Carcinoma",
        "Cancer",
        "Tumor"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 1000,
      "start_date": "2001-12-02",
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2026-09-01",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00027326"
    },
    {
      "nct_id": "NCT06396533",
      "title": "Increasing Pre-Surgical Identification of Muscle Invasive Tumor Evaluations Prior to Planned Cystectomy (INSITE)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Urothelial Carcinoma",
        "Muscle Invasive Bladder Urothelial Carcinoma",
        "Non-Muscle Invasive Bladder Urothelial Carcinoma"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Fox Chase 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": 92,
      "start_date": "2024-08-13",
      "completion_date": "2029-02-23",
      "has_results": false,
      "last_update_posted_date": "2025-10-31",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 2,
      "location_summary": "Omaha, Nebraska • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06396533"
    },
    {
      "nct_id": "NCT06492122",
      "title": "Study With [225Ac]Ac-FL-020 in mCRPC Participants",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Metastatic Castration-resistant Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "[225Ac]Ac-FL-020",
          "type": "DRUG"
        },
        {
          "name": "Blood samples for PK",
          "type": "DRUG"
        },
        {
          "name": "[111In]In-FL-020",
          "type": "DRUG"
        },
        {
          "name": "Blood and urine samples collection",
          "type": "PROCEDURE"
        },
        {
          "name": "SPECT/CT images",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE"
      ],
      "sponsor": "Full-Life Technologies UK Limited",
      "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": 50,
      "start_date": "2024-08-30",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-05-26",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 5,
      "location_summary": "Duarte, California • Irvine, California • Stanford, California + 2 more",
      "locations": [
        {
          "city": "Duarte",
          "state": "California"
        },
        {
          "city": "Irvine",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06492122"
    },
    {
      "nct_id": "NCT03559101",
      "title": "Effects of Amino Acid/Electrolyte-based Beverages on Hydration Status",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Dehydration"
      ],
      "interventions": [
        {
          "name": "Distilled water",
          "type": "OTHER"
        },
        {
          "name": "Medical Food 1",
          "type": "OTHER"
        },
        {
          "name": "Medical Food 2",
          "type": "OTHER"
        },
        {
          "name": "Pedialyte",
          "type": "OTHER"
        },
        {
          "name": "Gatorade",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "W. Larry Kenney",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "18 Years to 90 Years"
      },
      "enrollment_count": 32,
      "start_date": "2017-05-25",
      "completion_date": "2017-12-18",
      "has_results": false,
      "last_update_posted_date": "2018-06-15",
      "last_synced_at": "2026-09-27T20:07:25.442Z",
      "location_count": 1,
      "location_summary": "University Park, Pennsylvania",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03559101"
    }
  ]
}