{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Smoking+Cigarette&page=22",
    "query": {
      "condition": "Smoking Cigarette",
      "page": 22
    },
    "page_size": 10
  },
  "pagination": {
    "page": 22,
    "page_size": 10,
    "total_count": 798,
    "total_pages": 80,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Smoking+Cigarette&page=23&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Smoking+Cigarette&page=21&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T19:20:39.041Z",
  "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": "NCT05458895",
      "title": "Evaluating E-Cigarette Nicotine Form, Concentration, and Flavors Among Youth",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "E-cigarette Use"
      ],
      "interventions": [
        {
          "name": "ECIG lab session 1",
          "type": "OTHER"
        },
        {
          "name": "ECIG lab session 2",
          "type": "OTHER"
        },
        {
          "name": "ECIG lab session 3",
          "type": "OTHER"
        },
        {
          "name": "ECIG lab session 4",
          "type": "OTHER"
        },
        {
          "name": "ECIG lab session 5",
          "type": "OTHER"
        },
        {
          "name": "ECIG lab session 6",
          "type": "OTHER"
        },
        {
          "name": "ECIG lab session 7",
          "type": "OTHER"
        },
        {
          "name": "ECIG lab session 8",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "21 Years to 25 Years"
      },
      "enrollment_count": 88,
      "start_date": "2021-12-02",
      "completion_date": "2023-08-07",
      "has_results": true,
      "last_update_posted_date": "2024-11-22",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05458895"
    },
    {
      "nct_id": "NCT02432729",
      "title": "A Smoking Cessation Study to Understand the Biological and Functional Changes After One Year of Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cigarette Smoking"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Philip Morris Products S.A.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "30 Years to 65 Years"
      },
      "enrollment_count": 1184,
      "start_date": "2015-05-05",
      "completion_date": "2018-04-27",
      "has_results": true,
      "last_update_posted_date": "2023-01-30",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Charlotte, North Carolina",
      "locations": [
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02432729"
    },
    {
      "nct_id": "NCT03865472",
      "title": "rTMS in Promoting Smoking Cessation and Preventing Relapse in Current Smokers",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Smoker",
        "Current Every Day Smoker",
        "Current Smoker"
      ],
      "interventions": [
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Repetitive Transcranial Magnetic Stimulation",
          "type": "PROCEDURE"
        },
        {
          "name": "Sham Intervention",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 206,
      "start_date": "2018-11-10",
      "completion_date": "2026-11-13",
      "has_results": false,
      "last_update_posted_date": "2026-02-10",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03865472"
    },
    {
      "nct_id": "NCT01158456",
      "title": "Metabolism of NNK Among African Americans",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "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": 161,
      "start_date": "2010-12",
      "completion_date": "2017-11",
      "has_results": false,
      "last_update_posted_date": "2023-04-10",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01158456"
    },
    {
      "nct_id": "NCT04003805",
      "title": "Biomarkers of Exposure and Effect in Standardized Research E-cigarette (SREC) Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Smoking, Cigarette"
      ],
      "interventions": [
        {
          "name": "Standardized Research E-cigarette (SREC)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Masonic Cancer Center, 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": 47,
      "start_date": "2022-05-11",
      "completion_date": "2026-09-17",
      "has_results": true,
      "last_update_posted_date": "2026-10-15",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04003805"
    },
    {
      "nct_id": "NCT07167225",
      "title": "Carcinogen and Toxicant Exposure Among Young Adults Who Co-Use Cigarettes, E-cigarettes and Cannabis (Co-Tox Study)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cigarette Smoking-Related Carcinoma",
        "E-Cig Use"
      ],
      "interventions": [
        {
          "name": "Effectiveness of different recruitment approaches",
          "type": "OTHER"
        },
        {
          "name": "Choice of study completion locations",
          "type": "OTHER"
        },
        {
          "name": "Cannabis Engagement Assessment",
          "type": "OTHER"
        },
        {
          "name": "E-cigarette dependence Scale",
          "type": "OTHER"
        },
        {
          "name": "Nicotine dependence Scale",
          "type": "OTHER"
        },
        {
          "name": "Co use practices QUestionnaire",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Roswell Park Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "18 Years to 25 Years"
      },
      "enrollment_count": 150,
      "start_date": "2025-04-03",
      "completion_date": "2028-10-01",
      "has_results": false,
      "last_update_posted_date": "2026-11-13",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Buffalo, New York",
      "locations": [
        {
          "city": "Buffalo",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07167225"
    },
    {
      "nct_id": "NCT03176784",
      "title": "UW Quitting Using Intensive Treatment Study (QUITS)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Tobacco Dependence"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo Patch",
          "type": "OTHER"
        },
        {
          "name": "Placebo Pill",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1251,
      "start_date": "2017-11-11",
      "completion_date": "2020-07-09",
      "has_results": true,
      "last_update_posted_date": "2023-01-23",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 2,
      "location_summary": "Madison, Wisconsin • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03176784"
    },
    {
      "nct_id": "NCT02648178",
      "title": "Evaluation of Appeal and Impact of E-Cigarettes Among Chronic Smokers With Smoking-Related Cancers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence, Other Tobacco Product",
        "Bladder Cancer",
        "Lung Cancer",
        "Cancer of Head and Neck"
      ],
      "interventions": [
        {
          "name": "HALO",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical Center",
      "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": "2016-06",
      "completion_date": "2018-05",
      "has_results": true,
      "last_update_posted_date": "2019-09-19",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02648178"
    },
    {
      "nct_id": "NCT03839043",
      "title": "Short Messaging Service Program to Help Quit Smoking During Perioperative Period.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Cessation",
        "Perioperative/Postoperative Complications",
        "Tobacco Smoking"
      ],
      "interventions": [
        {
          "name": "Brief behavioral intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SMS Program",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 100,
      "start_date": "2019-03-18",
      "completion_date": "2021-06-11",
      "has_results": false,
      "last_update_posted_date": "2021-07-09",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03839043"
    },
    {
      "nct_id": "NCT03453385",
      "title": "Clinical Outcomes of a Nationwide, Naturalistic E-Cig Trial (CONNECT)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Electronic Cigarette",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 638,
      "start_date": "2018-05-24",
      "completion_date": "2022-09-08",
      "has_results": true,
      "last_update_posted_date": "2023-09-11",
      "last_synced_at": "2026-11-15T19:20:39.041Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03453385"
    }
  ]
}