{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+draw+and+questionnaire+completion&page=18",
    "query": {
      "intervention": "blood draw and questionnaire completion",
      "page": 18
    },
    "page_size": 10
  },
  "pagination": {
    "page": 18,
    "page_size": 10,
    "total_count": 416,
    "total_pages": 42,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+draw+and+questionnaire+completion&page=19&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+draw+and+questionnaire+completion&page=17&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-14T17:21:54.724Z",
  "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": "NCT05074719",
      "title": "Index Individuals in SARS-CoV-2 Prevention Research Studies (COVID-19 Index Individuals Companion Study)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "SARS-CoV-2 Infection",
        "COVID-19",
        "Coronavirus Infection",
        "SARS (Severe Acute Respiratory Syndrome)"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Washington",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "10 Years and older"
      },
      "enrollment_count": 155,
      "start_date": "2020-12-10",
      "completion_date": "2021-10-31",
      "has_results": false,
      "last_update_posted_date": "2021-12-15",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05074719"
    },
    {
      "nct_id": "NCT06200103",
      "title": "Schedule De-Escalation of 177Lu-PSMA-617 for the Treatment of Metastatic Castrate Resistant Prostate Cancer",
      "overall_status": "SUSPENDED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Castration-Resistant Prostate Carcinoma",
        "Stage IVB Prostate Cancer AJCC v8"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bone Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Clinical Observation",
          "type": "OTHER"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Gallium Ga 68 Gozetotide",
          "type": "OTHER"
        },
        {
          "name": "Lutetium Lu 177 Vipivotide Tetraxetan",
          "type": "DRUG"
        },
        {
          "name": "Positron Emission Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Single Photon Emission Computed Tomography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 236,
      "start_date": "2024-05-03",
      "completion_date": "2029-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06200103"
    },
    {
      "nct_id": "NCT06009926",
      "title": "Evaluation of Broccoli Seed and Sprout Extract for Detoxification of Carcinogens in Firefighters",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Hematopoietic and Lymphatic System Neoplasm",
        "Malignant Solid Neoplasm",
        "Occupational Malignant Neoplasm"
      ],
      "interventions": [
        {
          "name": "Acetaminophen",
          "type": "DRUG"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Broccoli Sprout/Broccoli Seed Extract Supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo Administration",
          "type": "DRUG"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Training",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "PROCEDURE",
        "DIETARY_SUPPLEMENT",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 72,
      "start_date": "2023-12-04",
      "completion_date": "2027-11-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06009926"
    },
    {
      "nct_id": "NCT03408353",
      "title": "Mammography, Early Detection Biomarkers, Risk Assessment, and Imaging Technologies, MERIT Study",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Mammography",
          "type": "PROCEDURE"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "80 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 80 Years · Female only"
      },
      "enrollment_count": 10000,
      "start_date": "2017-09-15",
      "completion_date": "2027-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-11",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03408353"
    },
    {
      "nct_id": "NCT03441997",
      "title": "The Altered Immune Response to Exercise in Patients With Fibromyalgia Before and After a Mind-body Intervention",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fibromyalgia"
      ],
      "interventions": [
        {
          "name": "Mind-body exercise",
          "type": "OTHER"
        },
        {
          "name": "Light mobility exercises",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 70 Years · Female only"
      },
      "enrollment_count": 40,
      "start_date": "2018-02-01",
      "completion_date": "2019-12-20",
      "has_results": false,
      "last_update_posted_date": "2019-01-04",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03441997"
    },
    {
      "nct_id": "NCT03672422",
      "title": "Pediatric Longitudinal Cohort Study of Chronic Pancreatitis",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Pancreatitis, Chronic",
        "Pancreatitis, Acute"
      ],
      "interventions": [
        {
          "name": "Blood sample",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Patient questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Saliva sample",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Urine sample",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "BEHAVIORAL"
      ],
      "sponsor": "Aliye Uc",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "0 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "0 Years to 17 Years"
      },
      "enrollment_count": 623,
      "start_date": "2017-06-30",
      "completion_date": "2020-08-31",
      "has_results": false,
      "last_update_posted_date": "2020-11-06",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 18,
      "location_summary": "Beverly Hills, California • Los Angeles, California • San Francisco, California + 15 more",
      "locations": [
        {
          "city": "Beverly Hills",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03672422"
    },
    {
      "nct_id": "NCT03092037",
      "title": "Pharmacogenomics of Contraception: Genetic Variants and Etonogestrel Pharmacokinetics",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "Blood draw",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 900,
      "start_date": "2017-03-23",
      "completion_date": "2022-04-29",
      "has_results": false,
      "last_update_posted_date": "2022-08-16",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03092037"
    },
    {
      "nct_id": "NCT04528446",
      "title": "The Impact of Glomerular Disorders on Bone Quality and Strength",
      "overall_status": "UNKNOWN",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Glomerular Disease",
        "Bone Diseases, Metabolic",
        "Bone Fracture"
      ],
      "interventions": [
        {
          "name": "Dual-energy X-ray absorptiometry",
          "type": "RADIATION"
        },
        {
          "name": "High Resolution Peripheral Quantitative Computed Tomography (HR-pQCT)",
          "type": "RADIATION"
        },
        {
          "name": "Blood draw and Urine collection",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "RADIATION",
        "OTHER"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "5 Years to 55 Years"
      },
      "enrollment_count": 270,
      "start_date": "2019-06-14",
      "completion_date": "2024-12",
      "has_results": false,
      "last_update_posted_date": "2024-07-01",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 2,
      "location_summary": "New York, New York • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04528446"
    },
    {
      "nct_id": "NCT01366911",
      "title": "Stem Cells Predicting Orthopedic Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Hip Arthroplasty"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 203,
      "start_date": "2011-04-22",
      "completion_date": "2014-01-10",
      "has_results": false,
      "last_update_posted_date": "2023-09-06",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01366911"
    },
    {
      "nct_id": "NCT06557057",
      "title": "Impact of Aromatase Inhibitor Therapy on Glucose Homeostasis and Diabetes Risk",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "HER2-Positive Breast Carcinoma"
      ],
      "interventions": [
        {
          "name": "Non-Interventional Study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "Female only"
      },
      "enrollment_count": 81,
      "start_date": "2023-11-16",
      "completion_date": "2026-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-10-14T17:21:54.724Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06557057"
    }
  ]
}