{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Free+Base+Nicotine",
    "query": {
      "intervention": "Free Base Nicotine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 73,
    "total_pages": 8,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Free+Base+Nicotine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-06T21:57:13.300Z",
  "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": "2026-09-06T21:57:13.300Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05458895"
    },
    {
      "nct_id": "NCT03050853",
      "title": "The Appeal and Impact of E-cigarettes in Smokers With SMI",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Dependence",
        "Schizophrenia",
        "Bipolar Disorder",
        "Schizoaffective Disorder"
      ],
      "interventions": [
        {
          "name": "E-cigarette",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 240,
      "start_date": "2017-03-01",
      "completion_date": "2021-01-31",
      "has_results": false,
      "last_update_posted_date": "2021-03-29",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 2,
      "location_summary": "Louisville, Kentucky • Lawrence, Massachusetts",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Lawrence",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03050853"
    },
    {
      "nct_id": "NCT05586308",
      "title": "Incentive-based and Media Literacy Informed Approaches to Improve Vaping Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Behavior, Health Risk",
        "Implementation Science",
        "E Cigarette Use",
        "Cessation, Smoking",
        "Incentives",
        "Engagement, Patient",
        "Peer Support",
        "Media Literacy"
      ],
      "interventions": [
        {
          "name": "Text-massaging suport",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Financial incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Media literacy",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Nebraska",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Years",
        "maximum_age": "29 Years",
        "sex": "ALL",
        "summary": "19 Years to 29 Years"
      },
      "enrollment_count": 40,
      "start_date": "2023-12-07",
      "completion_date": "2025-06-30",
      "has_results": true,
      "last_update_posted_date": "2026-01-29",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 1,
      "location_summary": "Omaha, Nebraska",
      "locations": [
        {
          "city": "Omaha",
          "state": "Nebraska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05586308"
    },
    {
      "nct_id": "NCT04238832",
      "title": "Salt-Based E-cigarette",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Salt Base Nicotine",
          "type": "OTHER"
        },
        {
          "name": "Free Base Nicotine",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 24,
      "start_date": "2020-06-16",
      "completion_date": "2021-07-23",
      "has_results": false,
      "last_update_posted_date": "2021-08-09",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04238832"
    },
    {
      "nct_id": "NCT03740490",
      "title": "Smartphone Based Smoking Cessation Intervention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Smart-T + NRT",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "QuitGuide + NRT",
          "type": "COMBINATION_PRODUCT"
        }
      ],
      "intervention_types": [
        "COMBINATION_PRODUCT"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 454,
      "start_date": "2019-08-26",
      "completion_date": "2023-11-17",
      "has_results": true,
      "last_update_posted_date": "2025-08-17",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 1,
      "location_summary": "Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03740490"
    },
    {
      "nct_id": "NCT05671380",
      "title": "A Pragmatic Trial of Chronic Disease Approaches to Ameliorate Tobacco Related Cardiovascular Disease Health Disparities",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Cessation",
        "Cardiovascular Diseases",
        "Tobacco Use",
        "Smoking",
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Longitudinal Proactive Outreach (LPO).",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Ask-Advice-Connect (AAC)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 700,
      "start_date": "2023-05-05",
      "completion_date": "2028-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-13",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 3,
      "location_summary": "Minneapolis, Minnesota • Rochester, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05671380"
    },
    {
      "nct_id": "NCT01817842",
      "title": "Study of Mobile Phone Support for the DC Tobacco Quitline",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Mobile EX cessation support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "DC Quitline Support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Device Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Truth Initiative",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 803,
      "start_date": "2010-07",
      "completion_date": "2012-02",
      "has_results": false,
      "last_update_posted_date": "2013-03-26",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01817842"
    },
    {
      "nct_id": "NCT06544772",
      "title": "Study of a Smartphone-Based Switch Program",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Pivot cigarette smoking cessation program",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Pivot Health Technologies Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "21 Years to 65 Years"
      },
      "enrollment_count": 105,
      "start_date": "2024-08-16",
      "completion_date": "2025-06-09",
      "has_results": false,
      "last_update_posted_date": "2025-10-02",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 1,
      "location_summary": "San Carlos, California",
      "locations": [
        {
          "city": "San Carlos",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06544772"
    },
    {
      "nct_id": "NCT02328794",
      "title": "Randomized Clinical Trial to Reduce Harm From Tobacco",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "E-cigarette free access",
          "type": "BEHAVIORAL"
        },
        {
          "name": "E-cigarette/NRT/Zyban/Chantix Choice",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Outcome Incentive arm",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Loss framing incentive arm",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "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": 6006,
      "start_date": "2015-01-01",
      "completion_date": "2017-04-20",
      "has_results": false,
      "last_update_posted_date": "2017-05-02",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02328794"
    },
    {
      "nct_id": "NCT03200236",
      "title": "The Lung Screening, Tobacco and Health Project",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking, Tobacco",
        "Tobacco-Related Carcinoma",
        "Tobacco Use",
        "Lung Cancer Screening"
      ],
      "interventions": [
        {
          "name": "Intensive Telephone Counseling (8 sessions) with nicotine replacement",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care: Telephone counseling (3 sessions) with nicotine replacement",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Georgetown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "50 Years to 80 Years"
      },
      "enrollment_count": 1114,
      "start_date": "2017-05-03",
      "completion_date": "2022-01-30",
      "has_results": false,
      "last_update_posted_date": "2023-11-02",
      "last_synced_at": "2026-09-06T21:57:13.300Z",
      "location_count": 7,
      "location_summary": "Washington D.C., District of Columbia • Miami, Florida • Moline, Illinois + 4 more",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Moline",
          "state": "Illinois"
        },
        {
          "city": "Annapolis",
          "state": "Maryland"
        },
        {
          "city": "Hollywood",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03200236"
    }
  ]
}