{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=E-cigarette%2Ftobacco+Smoking+Exposure",
    "query": {
      "intervention": "E-cigarette/tobacco Smoking Exposure"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 32,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=E-cigarette%2Ftobacco+Smoking+Exposure&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-06T11:37:17.868Z",
  "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": "NCT03690427",
      "title": "The Cardiovascular Effects of Electronic Hookah Vaping",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Endothelial Dysfunction",
        "Inflammation",
        "Oxidative Stress"
      ],
      "interventions": [
        {
          "name": "Traditional hookah smoking",
          "type": "OTHER"
        },
        {
          "name": "Electronic hookah vaping",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "39 Years",
        "sex": "ALL",
        "summary": "21 Years to 39 Years"
      },
      "enrollment_count": 19,
      "start_date": "2018-12-11",
      "completion_date": "2021-09-27",
      "has_results": true,
      "last_update_posted_date": "2023-08-16",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03690427"
    },
    {
      "nct_id": "NCT03744559",
      "title": "Behavioral Memory Modulation in Nicotine Addiction",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Use Disorder"
      ],
      "interventions": [
        {
          "name": "Retrieval Extinction Training (RET)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control Retrieval Extinction Training (RET)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "25 Years to 65 Years"
      },
      "enrollment_count": 191,
      "start_date": "2019-02-04",
      "completion_date": "2023-11-01",
      "has_results": true,
      "last_update_posted_date": "2025-04-30",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03744559"
    },
    {
      "nct_id": "NCT05142436",
      "title": "BAT3221032: A Study to Evaluate the Effects of Switching From Cigarette Smoking to Using One of Five Variants of a Heated Tobacco Product on Biomarkers of Exposure and Biomarkers of Potential Harm in Healthy Subjects",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Tobacco Use",
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Product A: Non-Combusted Cigarette Variant 42001402 and product use Mode B",
          "type": "OTHER"
        },
        {
          "name": "Product B: Non-Combusted Cigarette Variant 42001399 and product use Mode B",
          "type": "OTHER"
        },
        {
          "name": "Product C: Non-Combusted Cigarette Variant 42001401 and product use Mode B",
          "type": "OTHER"
        },
        {
          "name": "Product D: Non-Combusted Cigarette Variant 40007386 and product use Mode B",
          "type": "OTHER"
        },
        {
          "name": "Product E: Non-Combusted Cigarette Variant 42001402 and product use Mode A",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "British American Tobacco (Investments) Limited",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "26 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "26 Years to 55 Years"
      },
      "enrollment_count": 806,
      "start_date": "2022-01-13",
      "completion_date": "2022-12-13",
      "has_results": false,
      "last_update_posted_date": "2022-12-16",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 18,
      "location_summary": "Bentonville, Arkansas • Little Rock, Arkansas • Rogers, Arkansas + 14 more",
      "locations": [
        {
          "city": "Bentonville",
          "state": "Arkansas"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Rogers",
          "state": "Arkansas"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Morrow",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05142436"
    },
    {
      "nct_id": "NCT04092387",
      "title": "Low Nicotine Content Cigarettes in Vulnerable Populations: Women of Reproductive Age",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Varying the nicotine content of cigarettes",
          "type": "OTHER"
        },
        {
          "name": "E-Cigarettes",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Vermont",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "44 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 44 Years · Female only"
      },
      "enrollment_count": 326,
      "start_date": "2020-10-18",
      "completion_date": "2023-11-27",
      "has_results": true,
      "last_update_posted_date": "2025-03-18",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland • Burlington, Vermont",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04092387"
    },
    {
      "nct_id": "NCT03028558",
      "title": "Biology of the Oral Epithelium of E-Cigarette Smokers",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Healthy"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Weill Medical College of Cornell University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "21 Years to 35 Years"
      },
      "enrollment_count": 105,
      "start_date": "2016-04-12",
      "completion_date": "2021-01-21",
      "has_results": false,
      "last_update_posted_date": "2021-05-04",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03028558"
    },
    {
      "nct_id": "NCT05280535",
      "title": "Dual Use of ENDS and Combustible Cigarettes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking, Cigarette",
        "Electronic Cigarette Use"
      ],
      "interventions": [
        {
          "name": "Cue Reactivity Task",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Computerized Visual Dot Probe",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Choice Task",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "34 Years",
        "sex": "ALL",
        "summary": "21 Years to 34 Years"
      },
      "enrollment_count": 82,
      "start_date": "2022-12-14",
      "completion_date": "2025-05-20",
      "has_results": false,
      "last_update_posted_date": "2025-09-18",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05280535"
    },
    {
      "nct_id": "NCT06534905",
      "title": "E-cigarette Switching Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use",
        "Opioid Use Disorder",
        "Tobacco-Related Disorders"
      ],
      "interventions": [
        {
          "name": "E-cigarette",
          "type": "OTHER"
        },
        {
          "name": "Control/Standard Advice",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 36,
      "start_date": "2024-11-25",
      "completion_date": "2025-10-31",
      "has_results": false,
      "last_update_posted_date": "2026-07-10",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06534905"
    },
    {
      "nct_id": "NCT04090879",
      "title": "Low Nicotine Content Cigarettes in Vulnerable Populations: Affective Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Either normal nicotine content cigarettes (15.8mg/g) or reduced nicotine content cigarettes (0.4mg/g)",
          "type": "OTHER"
        },
        {
          "name": "E-Cigarettes",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 326,
      "start_date": "2020-10-18",
      "completion_date": "2023-11-27",
      "has_results": true,
      "last_update_posted_date": "2025-04-01",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 2,
      "location_summary": "Providence, Rhode Island • Burlington, Vermont",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        },
        {
          "city": "Burlington",
          "state": "Vermont"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04090879"
    },
    {
      "nct_id": "NCT05887947",
      "title": "Impact of E-cigarette Nicotine Concentration on Compensation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Electronic Cigarette with 5% Nicotine Concentration",
          "type": "DEVICE"
        },
        {
          "name": "Electronic Cigarette with 1.8% Nicotine Concentration",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Kansas Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 52,
      "start_date": "2023-02-20",
      "completion_date": "2024-06-10",
      "has_results": true,
      "last_update_posted_date": "2025-09-10",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 1,
      "location_summary": "Kansas City, Kansas",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05887947"
    },
    {
      "nct_id": "NCT03072628",
      "title": "E-cigarettes, Nicotine Inhaler, and Blood Vessel Function",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "e-cig with nicotine",
          "type": "OTHER"
        },
        {
          "name": "e-cig without nicotine",
          "type": "OTHER"
        },
        {
          "name": "nicotine inhaler",
          "type": "OTHER"
        },
        {
          "name": "sham control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "21 Years to 45 Years"
      },
      "enrollment_count": 148,
      "start_date": "2017-01-11",
      "completion_date": "2022-12-01",
      "has_results": false,
      "last_update_posted_date": "2023-10-04",
      "last_synced_at": "2026-10-06T11:37:17.868Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03072628"
    }
  ]
}