{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=E-Cigarette+Use&page=2",
    "query": {
      "condition": "E-Cigarette Use",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=E-Cigarette+Use&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-26T00:16:52.881Z",
  "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": "NCT03750825",
      "title": "Are Smokers Switching to Vaping at Lower Risk for Cancer? (Electronic Cigarettes and Cancer Risk)",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Smoking"
      ],
      "interventions": [
        {
          "name": "NIDA Standard Research E-cigarette (SREC)",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "22 Years to 55 Years"
      },
      "enrollment_count": 150,
      "start_date": "2021-12-01",
      "completion_date": "2028-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-08-06",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03750825"
    },
    {
      "nct_id": "NCT06765291",
      "title": "Behavioral Intervention for Youth to Promote Vaping Cessation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaping",
        "Vaping Teens",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "QuitVaping",
          "type": "BEHAVIORAL"
        },
        {
          "name": "This is Quitting (TIQ)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "14 Years to 18 Years"
      },
      "enrollment_count": 400,
      "start_date": "2025-06-18",
      "completion_date": "2028-09-27",
      "has_results": false,
      "last_update_posted_date": "2025-10-22",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06765291"
    },
    {
      "nct_id": "NCT06435221",
      "title": "Safety Study of Cytisinicline in Adult Combustible and/or E-cigarette Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation",
        "Vaping Cessation"
      ],
      "interventions": [
        {
          "name": "Cytisinicline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Achieve Life Sciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 479,
      "start_date": "2024-05-28",
      "completion_date": "2025-10-06",
      "has_results": false,
      "last_update_posted_date": "2025-11-26",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 29,
      "location_summary": "Mobile, Alabama • Tempe, Arizona • Little Rock, Arkansas + 26 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Tempe",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "DeLand",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06435221"
    },
    {
      "nct_id": "NCT03700892",
      "title": "In-vivo Effects of E-cigarette Aerosol on Innate Lung Host Defense",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Cinnamaldehyde e-liquid",
          "type": "OTHER"
        },
        {
          "name": "PG/VG e-liquid",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "40 Years",
        "sex": "ALL",
        "summary": "18 Years to 40 Years"
      },
      "enrollment_count": 19,
      "start_date": "2018-10-19",
      "completion_date": "2020-03-03",
      "has_results": true,
      "last_update_posted_date": "2021-06-10",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03700892"
    },
    {
      "nct_id": "NCT03449017",
      "title": "Reactions to E-cigs and Alcohol",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Abuse",
        "Nicotine Dependence Tobacco Product"
      ],
      "interventions": [
        {
          "name": "E-cig use",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 35,
      "start_date": "2017-03-24",
      "completion_date": "2018-11-11",
      "has_results": false,
      "last_update_posted_date": "2018-11-29",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "Indianapolis, Indiana",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03449017"
    },
    {
      "nct_id": "NCT04009850",
      "title": "Impact of Cigarette and E-cigarette Flavors on Adult Smoking Behavior",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Cigarette Brand Switching",
          "type": "OTHER"
        },
        {
          "name": "E-cigarette Flavor",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3,
      "start_date": "2019-07-01",
      "completion_date": "2022-01-31",
      "has_results": true,
      "last_update_posted_date": "2024-03-08",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04009850"
    },
    {
      "nct_id": "NCT05493982",
      "title": "Evaluation of the Be Vape Free Curriculum of the Tobacco Prevention Toolkit",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "E-cigarette Use"
      ],
      "interventions": [
        {
          "name": "Stanford Vaping Prevention curriculum",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "10 Years to 20 Years"
      },
      "enrollment_count": 2779,
      "start_date": "2022-10-19",
      "completion_date": "2026-05-08",
      "has_results": false,
      "last_update_posted_date": "2026-05-27",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "Palo Alto, California",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05493982"
    },
    {
      "nct_id": "NCT03491059",
      "title": "Feasibility of PET/CT to Detect the Oral/Pulmonary Distribution of Nicotine Following E-cigarette Use",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "E-cigarette Use"
      ],
      "interventions": [
        {
          "name": "C-11 labeled nicotine",
          "type": "DRUG"
        },
        {
          "name": "PET/CT imaging",
          "type": "RADIATION"
        }
      ],
      "intervention_types": [
        "DRUG",
        "RADIATION"
      ],
      "sponsor": "University of Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 2,
      "start_date": "2018-02-16",
      "completion_date": "2025-02-16",
      "has_results": false,
      "last_update_posted_date": "2024-01-18",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03491059"
    },
    {
      "nct_id": "NCT05999383",
      "title": "Understanding the Clinical Pharmacology of Marijuana-Tobacco Co-administration",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "THC",
        "Cannabis",
        "Cannabis Use",
        "Cannabis Smoking",
        "Tobacco Use",
        "Vaping"
      ],
      "interventions": [
        {
          "name": "Cannabis",
          "type": "DRUG"
        },
        {
          "name": "Nicotine",
          "type": "DRUG"
        },
        {
          "name": "Pax Loose Leaf Vaporizer",
          "type": "DEVICE"
        },
        {
          "name": "Placebo Marijuana",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 48,
      "start_date": "2025-07-01",
      "completion_date": "2028-02-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05999383"
    },
    {
      "nct_id": "NCT05897242",
      "title": "A Smartphone Application (ACT on Vaping) for Vaping Cessation in Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence",
        "Nicotine Addiction",
        "Nicotine Use Disorder",
        "Nicotine Vaping",
        "Vaping"
      ],
      "interventions": [
        {
          "name": "Smartphone app",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text Message",
          "type": "OTHER"
        },
        {
          "name": "Survey Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "30 Years",
        "sex": "ALL",
        "summary": "18 Years to 30 Years"
      },
      "enrollment_count": 61,
      "start_date": "2024-01-04",
      "completion_date": "2024-04-26",
      "has_results": true,
      "last_update_posted_date": "2025-06-24",
      "last_synced_at": "2026-06-26T00:16:52.881Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05897242"
    }
  ]
}