{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Tobacco+Toxicant+Exposure",
    "query": {
      "condition": "Tobacco Toxicant Exposure"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 9,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-06-26T23:20:58.739Z",
  "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": "NCT03232827",
      "title": "The Impact of Waterpipe Tobacco Flavors on Waterpipe Smoking Intentions, Perceptions, Patterns, and Toxicant Exposure",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking, Hookah",
        "Waterpipe Smoking"
      ],
      "interventions": [
        {
          "name": "Flavored-Sweetened Waterpipe Tobacco",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Unflavored-sweetened waterpipe tobacco",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Unflavored-very low sweetened waterpipe tobacco",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Flavored-very low sweetened waterpipe",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "50 Years",
        "sex": "ALL",
        "summary": "18 Years to 50 Years"
      },
      "enrollment_count": 91,
      "start_date": "2017-06-01",
      "completion_date": "2018-03-12",
      "has_results": true,
      "last_update_posted_date": "2019-06-24",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03232827"
    },
    {
      "nct_id": "NCT01092650",
      "title": "Determining Levels of [D10] Phenanthrene Tetraol in Smokers' Urine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Tobacco Toxicant Exposure"
      ],
      "interventions": [
        {
          "name": "Deuterated phenanthrene",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Minnesota",
      "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": 30,
      "start_date": "2007-09",
      "completion_date": "2011-12",
      "has_results": false,
      "last_update_posted_date": "2014-10-27",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01092650"
    },
    {
      "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": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "Richmond, Virginia",
      "locations": [
        {
          "city": "Richmond",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05023096"
    },
    {
      "nct_id": "NCT02414477",
      "title": "Metabolism of Deuterated NNN in Smokeless Tobacco Users",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Tobacco Toxicant Exposure"
      ],
      "interventions": [
        {
          "name": "Deuterated NNN",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Minnesota",
      "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": 13,
      "start_date": "2018-04-15",
      "completion_date": "2020-02-21",
      "has_results": false,
      "last_update_posted_date": "2025-01-30",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02414477"
    },
    {
      "nct_id": "NCT01067586",
      "title": "Novel Determinants and Measures of Smokeless Tobacco Use: Study 1",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Smokeless Tobacco Use",
        "Tobacco Dependence"
      ],
      "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": 359,
      "start_date": "2010-02",
      "completion_date": "2013-04",
      "has_results": true,
      "last_update_posted_date": "2022-12-22",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 3,
      "location_summary": "Minneapolis, Minnesota • Eugene, Oregon • Morgantown, West Virginia",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Eugene",
          "state": "Oregon"
        },
        {
          "city": "Morgantown",
          "state": "West Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01067586"
    },
    {
      "nct_id": "NCT06027840",
      "title": "Concurrent vs. Sequential Cessation of Dual Cigarette and E-cigarette Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Cigarette Smoking",
        "E-Cigarette Use",
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Guided Self-Change Booklets",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "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": 19,
      "start_date": "2024-04-01",
      "completion_date": "2025-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-08",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06027840"
    },
    {
      "nct_id": "NCT05338801",
      "title": "Effect of Menthol on ENDS Users' Addiction and Exposure",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Electronic Cigarette Use"
      ],
      "interventions": [
        {
          "name": "Menthol-flavored e-cigarette",
          "type": "OTHER"
        },
        {
          "name": "Tobacco-flavored e-cigarette",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Florida International 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": 250,
      "start_date": "2022-06-22",
      "completion_date": "2027-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-01",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05338801"
    },
    {
      "nct_id": "NCT07348679",
      "title": "Cigarette Filter Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking ( Cigarette)"
      ],
      "interventions": [
        {
          "name": "Charcoal filtered cigarettes with marketing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Charcoal filtered cigarette without marketing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Non-charcoal filtered cigarettes",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 252,
      "start_date": "2026-04-27",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-05",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07348679"
    },
    {
      "nct_id": "NCT05453773",
      "title": "Hookah Additive Research to Inform Product Standards",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Tobacco Smoking",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "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": 54,
      "start_date": "2022-06-19",
      "completion_date": "2023-05-11",
      "has_results": true,
      "last_update_posted_date": "2024-12-31",
      "last_synced_at": "2026-06-26T23:20:58.739Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05453773"
    }
  ]
}