{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Smoking+Susceptibility",
    "query": {
      "condition": "Smoking Susceptibility"
    },
    "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": "2026-07-23T18:06:37.347Z",
  "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": "NCT03786042",
      "title": "Trial on the Effect of E-cigarette Advertising on Cigarette Perceptions in Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Attentional Bias",
        "Smoking Cues",
        "Positive Perceptions About Cigarette Smoking",
        "Social Norms",
        "Smoking Susceptibility"
      ],
      "interventions": [
        {
          "name": "E-cigarette ad exposure",
          "type": "BEHAVIORAL"
        },
        {
          "name": "non e-cigarette TV commercials",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Trustees of Dartmouth College",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "14 Years to 17 Years"
      },
      "enrollment_count": 139,
      "start_date": "2019-02-04",
      "completion_date": "2021-12-09",
      "has_results": true,
      "last_update_posted_date": "2025-09-26",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03786042"
    },
    {
      "nct_id": "NCT04722835",
      "title": "Lung Macrophage Populations and Functions in Chronic Obstructive Pulmonary Disease (COPD)-Susceptible Smokers",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Copd",
        "Smoking",
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Bronchoscopy with Bronchoalveolar Lavage (BAL)",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "PROCEDURE"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "40 Years to 75 Years"
      },
      "enrollment_count": 40,
      "start_date": "2021-03-01",
      "completion_date": "2030-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 3,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04722835"
    },
    {
      "nct_id": "NCT06919276",
      "title": "Nicotine and Cannabis Vape Labeling Experiment - Spring 2025",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaping",
        "Adolescent",
        "Electronic Cigarette Use",
        "Nicotine",
        "Cannabis"
      ],
      "interventions": [
        {
          "name": "Vaping Device Labeling",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "11 Years to 19 Years"
      },
      "enrollment_count": 3048,
      "start_date": "2025-03-03",
      "completion_date": "2025-06-01",
      "has_results": false,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06919276"
    },
    {
      "nct_id": "NCT04151784",
      "title": "Factors That Impact the Relationship Between Pulmonary Status and Susceptibility to Electronic Cigarette Use",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Electronic Cigarette Use",
        "Pulmonary Disease"
      ],
      "interventions": [
        {
          "name": "Pulmonary Group",
          "type": "OTHER"
        },
        {
          "name": "Healthy Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2020-01-01",
      "completion_date": "2021-05-20",
      "has_results": false,
      "last_update_posted_date": "2021-05-25",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04151784"
    },
    {
      "nct_id": "NCT06129123",
      "title": "An Online Intervention to Reduce E-cigarette Use and Susceptibility to Smoking in Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "E-cigarette Use"
      ],
      "interventions": [
        {
          "name": "Live Free From E-cigarettes",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "18 Years to 24 Years"
      },
      "enrollment_count": 105,
      "start_date": "2025-07-01",
      "completion_date": "2026-01-23",
      "has_results": false,
      "last_update_posted_date": "2026-06-01",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06129123"
    },
    {
      "nct_id": "NCT01780038",
      "title": "Smokers' Response to Nicotine Dependence Genotyping",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Smoking",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Receipt of Genetic Results",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No results given",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Years and older"
      },
      "enrollment_count": 24,
      "start_date": "2012-11-14",
      "completion_date": "2013-08-31",
      "has_results": true,
      "last_update_posted_date": "2024-10-31",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01780038"
    },
    {
      "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": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07721883"
    },
    {
      "nct_id": "NCT05463796",
      "title": "InAdvance: Surveillance, Prevention, and Interception in a Population at Risk for Cancer",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Cancer Risk",
        "Cancer Predisposition Syndrome",
        "Hereditary Cancer Prediction",
        "Childhood Cancer Survivors",
        "Adult Cancer Survivors",
        "IARC Carcinogens",
        "Smoking History",
        "Lung Cancer",
        "Ductal/Lobular Carcinoma",
        "Barrett Esophagus",
        "Pancreatic Precursor Lesions",
        "Colonic Dysplasia/Adenomata",
        "Non-Alcoholic Fatty Liver Disease",
        "Non Alcoholic Steatohepatitis",
        "Cirrhosis",
        "High Grade Prostatic Epithelial Neoplasia",
        "High-grade Bladder Urothelial Dysplasia/Carcinoma in Situ",
        "Adenomatous Hyperplasia",
        "High-risk Oral Precancerous Diseases",
        "Melanocytic Lesion, Adult",
        "Hematologic Malignancy",
        "Lung; Node",
        "Serous Tubal Intraepithelial Carcinoma",
        "Endometrial Intraepithelial Neoplasia",
        "Cervical and Endocervical Carcinoma in Situ",
        "Vulvar Intraepithelial Neoplasia",
        "Nephrogenic Rests",
        "Benign Bone Lesions With Risk of Malignant Degeneration",
        "Giant Cell Tumor",
        "Osteochondroma",
        "Spitz Nevus"
      ],
      "interventions": [
        {
          "name": "Samples",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 5000,
      "start_date": "2023-04-25",
      "completion_date": "2032-03-25",
      "has_results": false,
      "last_update_posted_date": "2025-08-07",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05463796"
    },
    {
      "nct_id": "NCT07010601",
      "title": "Tobacco Product Susceptibility and Substitutability by Rurality and Alcohol Use",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Use",
        "E-cigarette Use",
        "Cigarette Use"
      ],
      "interventions": [
        {
          "name": "Experimental Tobacco Marketplace",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Hypothetical Novel Nicotine Product Purchase Tasks",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Mark J Rzeszutek, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 737,
      "start_date": "2025-08-18",
      "completion_date": "2025-08-20",
      "has_results": false,
      "last_update_posted_date": "2025-09-23",
      "last_synced_at": "2026-07-23T18:06:37.347Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07010601"
    }
  ]
}