{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+draw%2C+breathing+test",
    "query": {
      "intervention": "blood draw, breathing test"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 189,
    "total_pages": 19,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=blood+draw%2C+breathing+test&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-28T04:50:34.723Z",
  "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": "NCT03473548",
      "title": "Feasibility of Unattended Home Polysomnography and Comparison to In-laboratory Polysomnography in Pediatric Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Apnea, Obstructive"
      ],
      "interventions": [
        {
          "name": "Portable sleep monitor",
          "type": "DEVICE"
        },
        {
          "name": "In-laboratory Polysomnography",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "5 Years to 12 Years"
      },
      "enrollment_count": 11,
      "start_date": "2017-12-28",
      "completion_date": "2019-10-14",
      "has_results": true,
      "last_update_posted_date": "2024-02-07",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03473548"
    },
    {
      "nct_id": "NCT06983899",
      "title": "Exercise Training for the Improvement of Immune Activity and Treatment Outcomes During Immunotherapy for Non-small Cell Lung Cancer, BOOST Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lung Non-Small Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Aerobic Exercise",
          "type": "OTHER"
        },
        {
          "name": "Exercise Intervention",
          "type": "OTHER"
        },
        {
          "name": "Educational Intervention",
          "type": "OTHER"
        },
        {
          "name": "Dual X-ray Absorptiometry",
          "type": "PROCEDURE"
        },
        {
          "name": "Electronic Health Record Review",
          "type": "OTHER"
        },
        {
          "name": "Cardiopulmonary Exercise Testing",
          "type": "OTHER"
        },
        {
          "name": "Physical Performance Testing",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Pulmonary Function Test",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Fred Hutchinson 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": 100,
      "start_date": "2026-01-28",
      "completion_date": "2028-05-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-23",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06983899"
    },
    {
      "nct_id": "NCT02725060",
      "title": "Autoimmune Basis for Postural Tachycardia Syndrome",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Postural Orthostatic Tachycardia Syndrome",
        "Postural Tachycardia Syndrome",
        "Tachycardia",
        "Arrhythmias, Cardiac",
        "Autonomic Nervous System Diseases",
        "Orthostatic Intolerance",
        "Cardiovascular Diseases",
        "Primary Dysautonomias"
      ],
      "interventions": [
        {
          "name": "phenylephrine",
          "type": "DRUG"
        },
        {
          "name": "isoproterenol",
          "type": "DRUG"
        },
        {
          "name": "25 micro-Ci of radiation",
          "type": "RADIATION"
        },
        {
          "name": "Posture study with blood samples",
          "type": "PROCEDURE"
        },
        {
          "name": "24-hour heart rhythm and blood pressure monitoring",
          "type": "PROCEDURE"
        },
        {
          "name": "Quantitative Axonal Sudomotor Reflex Testing",
          "type": "PROCEDURE"
        },
        {
          "name": "Autonomic function tests",
          "type": "PROCEDURE"
        },
        {
          "name": "Rebreathing test",
          "type": "OTHER"
        },
        {
          "name": "Assessment of splanchnic capacitance",
          "type": "OTHER"
        },
        {
          "name": "microneurography",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION",
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Vanderbilt University Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 58,
      "start_date": "2016-02",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2025-11-12",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 2,
      "location_summary": "Oklahoma City, Oklahoma • Nashville, Tennessee",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02725060"
    },
    {
      "nct_id": "NCT03534934",
      "title": "CT-Based Modeling of Bone Micro-Architecture and Fracture-Risk in COPD",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Disease, Chronic Obstructive",
        "Osteoporosis"
      ],
      "interventions": [
        {
          "name": "Vital signs",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Urine Pregnancy Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Questionnaires",
          "type": "OTHER"
        },
        {
          "name": "Blood Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Duel-energy X-ray absorptiometry scan",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Multi-detector computed tomography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Dual-energy X-ray absorptiometry scan",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DIAGNOSTIC_TEST",
        "OTHER"
      ],
      "sponsor": "Punam K Saha",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "45 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "45 Years to 90 Years"
      },
      "enrollment_count": 560,
      "start_date": "2019-02-26",
      "completion_date": "2025-03-19",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 2,
      "location_summary": "Iowa City, Iowa • New York, New York",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03534934"
    },
    {
      "nct_id": "NCT03793439",
      "title": "Tofacitinib Hypothesis-generating, Pilot Study for Corticosteroid-Dependent Sarcoidosis",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Sarcoidosis, Pulmonary",
        "Sarcoidosis Lung",
        "Sarcoidosis"
      ],
      "interventions": [
        {
          "name": "Tofacitinib 5mg Oral Tablet [Xeljanz] 16 week trial",
          "type": "DRUG"
        },
        {
          "name": "Spirometry",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "RNA Sequencing",
          "type": "GENETIC"
        },
        {
          "name": "Laboratory testing",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Corticosteroid",
          "type": "DRUG"
        },
        {
          "name": "Tofacitinib 5mg [Xeljanz] 1 year open-label extension",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST",
        "GENETIC"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 5,
      "start_date": "2019-05-15",
      "completion_date": "2021-06-24",
      "has_results": true,
      "last_update_posted_date": "2022-02-18",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 1,
      "location_summary": "Portland, Oregon",
      "locations": [
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03793439"
    },
    {
      "nct_id": "NCT05074875",
      "title": "COVID-19 Respiratory Outcomes Registry",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Questionnaires and Patient Reported Outcomes (PROs)",
          "type": "OTHER"
        },
        {
          "name": "Nasal Swab COVID-19 reverse transcription polymerase chain reaction test (RT-PCR)",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Blood Samples for Biomarkers",
          "type": "GENETIC"
        },
        {
          "name": "High Resolution Computed Tomography",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Physical Exam and Vital Signs",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Medical Research Council Sum Score",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Hand Grip Strength",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Spirometry",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Diffusing Capacity of Carbon Monoxide",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "6 Minute Walk Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Sit to Stand (STS) Measurement",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DIAGNOSTIC_TEST",
        "GENETIC"
      ],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 37,
      "start_date": "2021-01-15",
      "completion_date": "2023-05-09",
      "has_results": false,
      "last_update_posted_date": "2023-07-27",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 4,
      "location_summary": "St Louis, Missouri • New York, New York • Houston, Texas",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05074875"
    },
    {
      "nct_id": "NCT03748082",
      "title": "Effects of Nitric Oxide on the Endothelium During Hemolysis.",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Endothelial Dysfunction",
        "Hemolysis Intravascular",
        "Cardiovascular Diseases",
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Nitric Oxide",
          "type": "DRUG"
        },
        {
          "name": "Reactive Hyperemia Index",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Endothelial Cells Collection",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST",
        "PROCEDURE"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 0,
      "start_date": "2018-12-05",
      "completion_date": "2023-11",
      "has_results": false,
      "last_update_posted_date": "2025-12-02",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03748082"
    },
    {
      "nct_id": "NCT04514354",
      "title": "The Influence of Cardiorespiratory Fitness on Firefighter Cardiovascular Health Under Exercise Conditions",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Diseases",
        "Post-Exercise Hypotension"
      ],
      "interventions": [
        {
          "name": "GEST",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Connecticut",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 21,
      "start_date": "2015-04",
      "completion_date": "2016-01",
      "has_results": false,
      "last_update_posted_date": "2020-08-14",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 1,
      "location_summary": "Hartford, Connecticut",
      "locations": [
        {
          "city": "Hartford",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04514354"
    },
    {
      "nct_id": "NCT07776353",
      "title": "Understanding New Cachexia Subtypes Through Observational Epidemiological Research",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Advanced Colorectal Carcinoma",
        "Advanced Lung Non-Small Cell Carcinoma",
        "Advanced Pancreatic Adenocarcinoma",
        "Stage IV Colorectal Cancer AJCC v8",
        "Stage IV Lung Cancer AJCC v8",
        "Stage IV Pancreatic Cancer AJCC v8",
        "Unresectable Colorectal Carcinoma",
        "Unresectable Lung Non-Small Cell Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Computed Tomography",
          "type": "PROCEDURE"
        },
        {
          "name": "Electronic health record review",
          "type": "OTHER"
        },
        {
          "name": "Medical Device Usage and Evaluation",
          "type": "OTHER"
        },
        {
          "name": "Physical functions assessments",
          "type": "OTHER"
        },
        {
          "name": "Positron Emission Tomography (PET)",
          "type": "PROCEDURE"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "OTHER"
      ],
      "sponsor": "Kaiser Permanente",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 800,
      "start_date": "2023-04-05",
      "completion_date": "2028-05",
      "has_results": false,
      "last_update_posted_date": "2026-08-20",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 1,
      "location_summary": "Pleasanton, California",
      "locations": [
        {
          "city": "Pleasanton",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07776353"
    },
    {
      "nct_id": "NCT01807702",
      "title": "13C-Pyruvate Breath Test",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "13C-Pyruvate 13C-lactate and dichloroacetate",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "21 Years to 50 Years"
      },
      "enrollment_count": 5,
      "start_date": "2013-03",
      "completion_date": "2013-07",
      "has_results": false,
      "last_update_posted_date": "2015-12-02",
      "last_synced_at": "2026-09-28T04:50:34.723Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01807702"
    }
  ]
}