{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=cigarette+or+e-cigarette&page=6",
    "query": {
      "intervention": "cigarette or e-cigarette",
      "page": 6
    },
    "page_size": 10
  },
  "pagination": {
    "page": 6,
    "page_size": 10,
    "total_count": 134,
    "total_pages": 14,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=cigarette+or+e-cigarette&page=7&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=cigarette+or+e-cigarette&page=5&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T10:12:31.723Z",
  "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": "NCT01874886",
      "title": "Cannabis Effects on Brain Morphology in Aging",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Study Focuses on Brain Morphology and Cognition in Older Subjects"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "60 Years to 80 Years"
      },
      "enrollment_count": 60,
      "start_date": "2013-01",
      "completion_date": "2019-04",
      "has_results": false,
      "last_update_posted_date": "2020-11-03",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01874886"
    },
    {
      "nct_id": "NCT03634839",
      "title": "Effects of E-cigarette Flavors on Youth TCORS 2.0",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Nicotine Use Disorder"
      ],
      "interventions": [
        {
          "name": "Flavoring Agents",
          "type": "DRUG"
        },
        {
          "name": "Nicotine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "20 Years",
        "sex": "ALL",
        "summary": "18 Years to 20 Years"
      },
      "enrollment_count": 42,
      "start_date": "2022-11-07",
      "completion_date": "2023-07-20",
      "has_results": true,
      "last_update_posted_date": "2024-08-09",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03634839"
    },
    {
      "nct_id": "NCT03111537",
      "title": "Methods Project 4: Clinical Trial - Amended",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Cigarettes",
          "type": "OTHER"
        },
        {
          "name": "E-Cigarette",
          "type": "OTHER"
        },
        {
          "name": "Nicotine Gum or Lozenge",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 264,
      "start_date": "2015-05",
      "completion_date": "2018-02",
      "has_results": false,
      "last_update_posted_date": "2022-09-28",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 3,
      "location_summary": "Minneapolis, Minnesota • Buffalo, New York • Columbus, Ohio",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Buffalo",
          "state": "New York"
        },
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03111537"
    },
    {
      "nct_id": "NCT05030194",
      "title": "Comparing Nicotine Delivery, Subjective Effects, and Sensory Experiences of Tobacco Users Using Oral Nicotine Products and Electronic Cigarettes [ZYN Study]",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use",
        "Tobacco Smoking",
        "Cigarette Smoking",
        "Smokeless Tobacco Cessation"
      ],
      "interventions": [
        {
          "name": "Electronic Cigarette",
          "type": "OTHER"
        },
        {
          "name": "Oral Nicotine Pouch",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "21 Years to 55 Years"
      },
      "enrollment_count": 15,
      "start_date": "2021-10-21",
      "completion_date": "2023-01-25",
      "has_results": false,
      "last_update_posted_date": "2023-10-26",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05030194"
    },
    {
      "nct_id": "NCT04449510",
      "title": "Short-Term Cardiovascular Effects of E-Cigarettes: Influence of E-Liquid pH",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Risk Factor",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Electronic Cigarette",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 14,
      "start_date": "2021-01-04",
      "completion_date": "2024-07-31",
      "has_results": false,
      "last_update_posted_date": "2025-07-15",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 2,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04449510"
    },
    {
      "nct_id": "NCT04429568",
      "title": "THC Crossover Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "THC",
        "Cannabis",
        "Cannabis Smoking",
        "Cannabis Use, Unspecified",
        "Cigarette Smoking",
        "Tobacco Use",
        "Nicotine Dependence",
        "Nicotine Withdrawal",
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Smoked Cannabis",
          "type": "OTHER"
        },
        {
          "name": "Vaped Cannabis",
          "type": "OTHER"
        },
        {
          "name": "Tobacco Cigarette",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 14,
      "start_date": "2020-10-30",
      "completion_date": "2024-06-25",
      "has_results": false,
      "last_update_posted_date": "2024-07-01",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 2,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04429568"
    },
    {
      "nct_id": "NCT07721883",
      "title": "Social Media Influences on Engagement and Susceptibility to Non-combustible Tobacco Product Use Among Youth and Young Adults (AYA)",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Perceptions of Tobacco Products"
      ],
      "interventions": [
        {
          "name": "Each intervention will be a picture of a social media post. The posts will vary (in a 3X2 factorial design) the type of flavor described and whether concealability is described.",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "14 Years to 17 Years"
      },
      "enrollment_count": 4500,
      "start_date": "2025-07-01",
      "completion_date": "2028-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-07-23",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07721883"
    },
    {
      "nct_id": "NCT04047836",
      "title": "Vaping High vs. Low Nicotine E-Liquid",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cardiovascular Risk Factor",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Low Nicotine E-Liquid",
          "type": "OTHER"
        },
        {
          "name": "Medium or High Nicotine E-Liquid",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "21 Years to 70 Years"
      },
      "enrollment_count": 0,
      "start_date": "2023-06-01",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-08-22",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 2,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04047836"
    },
    {
      "nct_id": "NCT06856525",
      "title": "Dissolved Phase HXe-129 MRI: A Novel Biomarker to Quantify Pulmonary Pathology",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Electronic Cigarette Related Lung Damage"
      ],
      "interventions": [
        {
          "name": "Hyperpolarized xenon 129",
          "type": "DRUG"
        },
        {
          "name": "Cardiopulmonary Stress Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Pulmonary Function Test",
          "type": "DIAGNOSTIC_TEST"
        },
        {
          "name": "Chest CT",
          "type": "DIAGNOSTIC_TEST"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIAGNOSTIC_TEST"
      ],
      "sponsor": "Y. Michael Shim, MD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "18 Years to 35 Years"
      },
      "enrollment_count": 80,
      "start_date": "2024-12-19",
      "completion_date": "2032-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-17",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 2,
      "location_summary": "Durham, North Carolina • Charlottesville, Virginia",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        },
        {
          "city": "Charlottesville",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06856525"
    },
    {
      "nct_id": "NCT05772845",
      "title": "Vaping and Smoking Withdrawal Project",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Acute Abstinence From Cigarettes vs E-cigarettes (ENDS)"
      ],
      "interventions": [
        {
          "name": "Acute (24-hour) abstinence",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Ad libitum smoking/vaping",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "State University of New York at Buffalo",
      "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": 370,
      "start_date": "2023-02-14",
      "completion_date": "2026-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-03-09",
      "last_synced_at": "2026-11-15T10:12:31.723Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05772845"
    }
  ]
}