{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Carbon+Monoxide+Test&page=2",
    "query": {
      "intervention": "Carbon Monoxide Test",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 47,
    "total_pages": 5,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Carbon+Monoxide+Test&page=3&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Carbon+Monoxide+Test&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-01T13:11:53.391Z",
  "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": "NCT03906708",
      "title": "Physiological Phenotyping of Respiratory Outcomes in Infants Born Premature",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Premature Lungs"
      ],
      "interventions": [
        {
          "name": "Diffusion Capacity of the Lung for Carbon Monoxide (DLCO)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "24 Weeks",
        "maximum_age": "36 Weeks",
        "sex": "ALL",
        "summary": "24 Weeks to 36 Weeks"
      },
      "enrollment_count": 249,
      "start_date": "2019-01-01",
      "completion_date": "2026-12",
      "has_results": false,
      "last_update_posted_date": "2026-02-19",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03906708"
    },
    {
      "nct_id": "NCT03059940",
      "title": "Smoking Cessation Intervention During Low Dose CT (LDCT) Screening for Lung Cancer",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Low Dose Computed Tomography Scan",
          "type": "PROCEDURE"
        },
        {
          "name": "Shared Decision Making + Video",
          "type": "OTHER"
        },
        {
          "name": "Cessation Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Quitline",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pharmacotherapy Discussion",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicotine Patch",
          "type": "DRUG"
        },
        {
          "name": "Anti-Smoking Drug",
          "type": "DRUG"
        },
        {
          "name": "Tobacco Treatment Program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Carbon Monoxide (CO) Level Test",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "PROCEDURE",
        "OTHER",
        "DRUG"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 630,
      "start_date": "2017-06-16",
      "completion_date": "2026-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-04-15",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03059940"
    },
    {
      "nct_id": "NCT06763536",
      "title": "Oral Nicotine Pouches Versus Nicotine Replacement Therapy to Reduce Cigarette Use for Smokers in Rural Appalachia",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Smoking-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Carbon Monoxide Measurement",
          "type": "OTHER"
        },
        {
          "name": "Nicotine Lozenge",
          "type": "OTHER"
        },
        {
          "name": "Oral Nicotine Pouch",
          "type": "OTHER"
        },
        {
          "name": "Nicotine Patch",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        },
        {
          "name": "Check-in Phone Calls",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2025-06-13",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-30",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06763536"
    },
    {
      "nct_id": "NCT06038526",
      "title": "Evaluation of Canakinumab in High-Risk Former-Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cigarette Smoking-Related Carcinoma",
        "Lung Carcinoma"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "PROCEDURE"
        },
        {
          "name": "Bronchoscopy",
          "type": "PROCEDURE"
        },
        {
          "name": "Canakinumab",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Carbon Monoxide Measurement",
          "type": "PROCEDURE"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "PROCEDURE",
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "Peter Shields",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "73 Years",
        "sex": "ALL",
        "summary": "40 Years to 73 Years"
      },
      "enrollment_count": 41,
      "start_date": "2024-03-11",
      "completion_date": "2026-05-26",
      "has_results": false,
      "last_update_posted_date": "2026-07-07",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06038526"
    },
    {
      "nct_id": "NCT01965405",
      "title": "Smoking Cessation for People Living With HIV/AIDS",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV",
        "AIDS",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Bupropion",
          "type": "DRUG"
        },
        {
          "name": "Brief Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High-magnitude prize contingency management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Monitored support to quit smoking",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No additional treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Prize contingency management for abstinence",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Low intensity prize contingency management",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Wayne State University",
      "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": 165,
      "start_date": "2013-08",
      "completion_date": "2021-12",
      "has_results": false,
      "last_update_posted_date": "2021-07-02",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Detroit, Michigan",
      "locations": [
        {
          "city": "Detroit",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01965405"
    },
    {
      "nct_id": "NCT02237898",
      "title": "Harnessing the Power of Technology: MOMBA for Postpartum Smoking",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "MoMba Live Long app & Sensordrone™ carbon-monoxide sensor",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Office contingency management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sensordrone™ carbon-monoxide sensor",
          "type": "DEVICE"
        },
        {
          "name": "MoMba Live Long Smartphone application",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 50 Years · Female only"
      },
      "enrollment_count": 26,
      "start_date": "2017-02-10",
      "completion_date": "2019-05-13",
      "has_results": true,
      "last_update_posted_date": "2020-05-21",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02237898"
    },
    {
      "nct_id": "NCT03235297",
      "title": "Effects of Altitude on Single-Breath Diffusing Capacity for Carbon Monoxide",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COPD"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Intermountain Health Care, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": null,
      "eligibility": {
        "minimum_age": "20 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "20 Years to 80 Years"
      },
      "enrollment_count": 23,
      "start_date": "2017-08-10",
      "completion_date": "2019-07-01",
      "has_results": false,
      "last_update_posted_date": "2020-02-12",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Murray, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03235297"
    },
    {
      "nct_id": "NCT02563678",
      "title": "Hyperbaric Oxygen, Neutrophil-oxidative Burst, and Cytokines",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Infection"
      ],
      "interventions": [
        {
          "name": "Hyperbaric Oxygen",
          "type": "DRUG"
        },
        {
          "name": "Hyperbaric Air/Oxygen",
          "type": "OTHER"
        },
        {
          "name": "Normobaric oxygen",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Intermountain Health Care, Inc.",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 40,
      "start_date": "2015-04",
      "completion_date": "2023-12",
      "has_results": false,
      "last_update_posted_date": "2022-08-04",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 2,
      "location_summary": "Murray, Utah • Salt Lake City, Utah",
      "locations": [
        {
          "city": "Murray",
          "state": "Utah"
        },
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02563678"
    },
    {
      "nct_id": "NCT07372183",
      "title": "Wound Healing Following Extraction and Ridge Preservation in Smokers and Non-smokers",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Smoking, Cigarette",
        "Alveolar Bone Grafting",
        "Wound Healing",
        "Bone Healing",
        "Tooth Extraction Site Healing"
      ],
      "interventions": [
        {
          "name": "observational study",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Marquette University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 12,
      "start_date": "2026-01-25",
      "completion_date": "2028-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-28",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07372183"
    },
    {
      "nct_id": "NCT07564648",
      "title": "Impact of Novel vs. Usual Brand Menthol Cigarettes on Abuse Liability",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Addiction",
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Biospecimen Collection",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Questionnaire Administration",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cigarette Purchase Task",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cross-Price Elasticity Task",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Daily Diary Surveys",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Progressive Ratio Task",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 48,
      "start_date": "2026-08-18",
      "completion_date": "2029-09-30",
      "has_results": false,
      "last_update_posted_date": "2026-09-24",
      "last_synced_at": "2026-10-01T13:11:53.391Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07564648"
    }
  ]
}