{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Tobacco+Toxicity",
    "query": {
      "condition": "Tobacco Toxicity"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T09:45:09.375Z",
  "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": "NCT05308316",
      "title": "Sugars in Cigarettes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Cigarettes with added sucrose",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-02-24",
      "completion_date": "2025-10-09",
      "has_results": true,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05308316"
    },
    {
      "nct_id": "NCT03492463",
      "title": "The Role of Nicotine Dose and Route of Delivery in Affecting Adoption of E-cigarettes and Reducing Exposure to Toxic Combustion Products",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Nicotine Dependence, Cigarettes"
      ],
      "interventions": [
        {
          "name": "Nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo patch",
          "type": "OTHER"
        },
        {
          "name": "E-cigarettes",
          "type": "OTHER"
        },
        {
          "name": "Non-nicotine e-cigarettes",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 94,
      "start_date": "2018-08-06",
      "completion_date": "2021-05-31",
      "has_results": true,
      "last_update_posted_date": "2023-02-08",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03492463"
    },
    {
      "nct_id": "NCT03402230",
      "title": "Broccoli Sprout/Broccoli Seed Extract Supplement in Decreasing Toxicity in Heavy Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Cigarette Smoking-Related Carcinoma",
        "Tobacco-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Broccoli Sprout/Broccoli Seed Extract Supplement",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 49,
      "start_date": "2018-02-20",
      "completion_date": "2022-07-24",
      "has_results": true,
      "last_update_posted_date": "2023-06-28",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 2,
      "location_summary": "Tucson, Arizona",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Tucson",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03402230"
    },
    {
      "nct_id": "NCT03473483",
      "title": "Cigarette Harm Reduction With Electronic Cigarette Use",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence",
        "Tobacco Toxicity",
        "Nicotine Dependence, Cigarettes",
        "Cardiovascular Risk Factor",
        "Nicotine Withdrawal"
      ],
      "interventions": [
        {
          "name": "SREC",
          "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": "2022-08-01",
      "completion_date": "2026-03-31",
      "has_results": false,
      "last_update_posted_date": "2022-12-09",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03473483"
    },
    {
      "nct_id": "NCT03113136",
      "title": "Examination of Low Wattage and High Wattage E-Cigarettes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking, Cigarette",
        "Smoking, Tobacco",
        "Nicotine Dependence",
        "Exposure to Toxic Agent"
      ],
      "interventions": [
        {
          "name": "Low wattage E cigarette device",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High wattage E cigarette device",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual brand cigarette",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 372,
      "start_date": "2017-06-29",
      "completion_date": "2022-01-31",
      "has_results": true,
      "last_update_posted_date": "2026-04-17",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03113136"
    },
    {
      "nct_id": "NCT05023096",
      "title": "Potential Effects of Electronic Nicotine Delivery System Flavor Regulations on African American Menthol Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Electronic Nicotine Delivery System Flavors"
      ],
      "interventions": [
        {
          "name": "Tobacco product administration and assessment",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Virginia Commonwealth University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 71,
      "start_date": "2022-04-14",
      "completion_date": "2024-10-15",
      "has_results": true,
      "last_update_posted_date": "2026-04-22",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05023096"
    },
    {
      "nct_id": "NCT03284632",
      "title": "e-Cigarette - DNA Adducts",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Smoking",
        "Cigarette Smoking",
        "Electronic Cigarettes"
      ],
      "interventions": [],
      "intervention_types": [],
      "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": 217,
      "start_date": "2017-07-11",
      "completion_date": "2021-06-01",
      "has_results": false,
      "last_update_posted_date": "2022-11-09",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03284632"
    },
    {
      "nct_id": "NCT03253653",
      "title": "Assessing Toxicity of Waterpipe Tobacco Smoking",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Waterpipe Smoking"
      ],
      "interventions": [
        {
          "name": "Differential effects of waterpipe smoking practices on toxicity of waterpipe tobacco smoke",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 85,
      "start_date": "2017-10-20",
      "completion_date": "2018-09-25",
      "has_results": true,
      "last_update_posted_date": "2025-04-09",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03253653"
    },
    {
      "nct_id": "NCT04250727",
      "title": "Switching to Potential Reduced Exposure Products in Adult Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Disorder",
        "Oral Nicotine Pouch Use",
        "Smoking Behaviors",
        "Harm Reduction",
        "Toxic Effect of Tobacco and Nicotine",
        "Carcinogenesis"
      ],
      "interventions": [
        {
          "name": "ZYN",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "77 Years",
        "sex": "ALL",
        "summary": "21 Years to 77 Years"
      },
      "enrollment_count": 30,
      "start_date": "2021-05-01",
      "completion_date": "2022-08-17",
      "has_results": true,
      "last_update_posted_date": "2024-05-01",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04250727"
    },
    {
      "nct_id": "NCT05658471",
      "title": "Pharmacokinetics and Pharmacodynamics of Nicotine With Use of Standardized Research Electronic Cigarette (SREC)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence",
        "Tobacco Toxicity",
        "Cardiovascular Risk Factors"
      ],
      "interventions": [
        {
          "name": "Standardized Research E-Cigarette (SREC)",
          "type": "OTHER"
        },
        {
          "name": "Over the Counter E-Cigarette (EC)",
          "type": "OTHER"
        },
        {
          "name": "Biological Samples",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Smoking-related Questionnaires",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "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": 32,
      "start_date": "2023-02-01",
      "completion_date": "2026-01-31",
      "has_results": false,
      "last_update_posted_date": "2026-03-27",
      "last_synced_at": "2026-05-22T09:45:09.375Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05658471"
    }
  ]
}