{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=VLN+cigarettes+%28A%29",
    "query": {
      "intervention": "VLN cigarettes (A)"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 4,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T14:27:03.654Z",
  "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": "NCT03571724",
      "title": "A Study to Assess Changes in Cigarette Consumption During a Switch to Very Low Nicotine Cigarettes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Non-Menthol Very Low Nicotine Cigarettes",
          "type": "OTHER"
        },
        {
          "name": "Menthol Very Low Nicotine Cigarettes",
          "type": "OTHER"
        },
        {
          "name": "Subject's UB non-mentholated filtered cigarettes",
          "type": "OTHER"
        },
        {
          "name": "Subject's UB mentholated filtered cigarettes",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "22nd Century Group, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "26 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "26 Years to 65 Years"
      },
      "enrollment_count": 142,
      "start_date": "2018-06-28",
      "completion_date": "2019-03-08",
      "has_results": true,
      "last_update_posted_date": "2020-09-16",
      "last_synced_at": "2026-09-26T14:27:03.654Z",
      "location_count": 2,
      "location_summary": "Lincoln, Nebraska • High Point, North Carolina",
      "locations": [
        {
          "city": "Lincoln",
          "state": "Nebraska"
        },
        {
          "city": "High Point",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03571724"
    },
    {
      "nct_id": "NCT03559725",
      "title": "Evaluation of Abuse Liability of Very Low Nicotine (VLN) Mentholated Cigarettes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "VLN menthol cigarettes (A)",
          "type": "OTHER"
        },
        {
          "name": "Usual Brand Menthol Cigarettes (B)",
          "type": "OTHER"
        },
        {
          "name": "Nicotine gum (C)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "22nd Century Group, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "22 Years to 65 Years"
      },
      "enrollment_count": 55,
      "start_date": "2018-05-01",
      "completion_date": "2018-10-04",
      "has_results": false,
      "last_update_posted_date": "2020-03-25",
      "last_synced_at": "2026-09-26T14:27:03.654Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03559725"
    },
    {
      "nct_id": "NCT01400815",
      "title": "Randomized Trial to Evaluate the Effectiveness of X-22 as a Smoking Cessation Aid",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "X-22 Smoking Cessation Product",
          "type": "DRUG"
        },
        {
          "name": "Active Control Cigarettes",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "22nd Century Limited, LLC",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 234,
      "start_date": "2011-07",
      "completion_date": "2012-12",
      "has_results": true,
      "last_update_posted_date": "2021-11-19",
      "last_synced_at": "2026-09-26T14:27:03.654Z",
      "location_count": 3,
      "location_summary": "Sacramento, California • Metairie, Louisiana • Austin, Texas",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Metairie",
          "state": "Louisiana"
        },
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01400815"
    },
    {
      "nct_id": "NCT03559751",
      "title": "Evaluation of the Abuse Liability of Very Low Nicotine (VLN) Cigarettes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "VLN cigarettes (A)",
          "type": "OTHER"
        },
        {
          "name": "Usual Brand Cigarettes (B)",
          "type": "OTHER"
        },
        {
          "name": "Nicotine gum (C)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "DRUG"
      ],
      "sponsor": "22nd Century Group, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "22 Years to 65 Years"
      },
      "enrollment_count": 66,
      "start_date": "2018-04-13",
      "completion_date": "2018-09-06",
      "has_results": false,
      "last_update_posted_date": "2020-03-26",
      "last_synced_at": "2026-09-26T14:27:03.654Z",
      "location_count": 1,
      "location_summary": "Overland Park, Kansas",
      "locations": [
        {
          "city": "Overland Park",
          "state": "Kansas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03559751"
    }
  ]
}