{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Smoking+Reduction&page=2",
    "query": {
      "condition": "Smoking Reduction",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Smoking+Reduction&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:45:45.879Z",
  "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": "NCT03502200",
      "title": "Switching to a Vaping Device: Evaluating Risk Reduction Among Quitline Treatment Failures",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking, Cigarette"
      ],
      "interventions": [
        {
          "name": "JUUL",
          "type": "DEVICE"
        },
        {
          "name": "Treatment As Usual",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Ohio State University Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "21 Years to 99 Years"
      },
      "enrollment_count": 350,
      "start_date": "2020-10-15",
      "completion_date": "2023-01-31",
      "has_results": true,
      "last_update_posted_date": "2023-07-21",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03502200"
    },
    {
      "nct_id": "NCT06543407",
      "title": "Harm Reduction for Smokers With Mental Illness",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Dependence"
      ],
      "interventions": [
        {
          "name": "SWITCH IT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "E-cig Provision Only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Dartmouth-Hitchcock Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "21 Years and older"
      },
      "enrollment_count": 250,
      "start_date": "2024-10-01",
      "completion_date": "2028-03-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-15",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 2,
      "location_summary": "Louisville, Kentucky • Providence, Rhode Island",
      "locations": [
        {
          "city": "Louisville",
          "state": "Kentucky"
        },
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06543407"
    },
    {
      "nct_id": "NCT01944423",
      "title": "Enhancing Panic and Smoking Reduction Treatment With D-Cycloserine",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Nicotine Addiction",
        "Panic Attack"
      ],
      "interventions": [
        {
          "name": "d-cycloserine",
          "type": "DRUG"
        },
        {
          "name": "Pill Placebo",
          "type": "DRUG"
        },
        {
          "name": "Nicotine replacement therapy",
          "type": "DRUG"
        },
        {
          "name": "Panic and Smoking Reduction Treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Texas at Austin",
      "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": 53,
      "start_date": "2013-10",
      "completion_date": "2018-10",
      "has_results": true,
      "last_update_posted_date": "2021-05-19",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01944423"
    },
    {
      "nct_id": "NCT00309296",
      "title": "Longitudinal Care: Smoking Reduction to Aid Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Diseases"
      ],
      "interventions": [
        {
          "name": "smoking cessation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "National Institutes of Health (NIH)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "18 Years to 80 Years"
      },
      "enrollment_count": 443,
      "start_date": "2005-11",
      "completion_date": "2009-12",
      "has_results": false,
      "last_update_posted_date": "2011-02-14",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00309296"
    },
    {
      "nct_id": "NCT07145866",
      "title": "Varenicline and Accelerated Transcranial Magnetic Stimulation (TMS) for Quitting Nicotine Use (Pilot Study)",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Nicotine Dependence",
        "Transcranial Magnetic Stimulation",
        "Vaping",
        "Smoking Cessation",
        "Smoking (Tobacco) Addiction"
      ],
      "interventions": [
        {
          "name": "varenicline",
          "type": "DRUG"
        },
        {
          "name": "Transcranial Magnetic Stimulation",
          "type": "DEVICE"
        },
        {
          "name": "Transcranial Magnetic Stimulation Sham",
          "type": "DEVICE"
        },
        {
          "name": "Nicotine Cessation Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DEVICE",
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 30,
      "start_date": "2026-03-15",
      "completion_date": "2027-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-01-16",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07145866"
    },
    {
      "nct_id": "NCT05016505",
      "title": "Supporting Smoke-Free Policy Compliance in Public Housing",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Smoking Cessation",
        "Smoking Reduction",
        "Smoking Behaviors"
      ],
      "interventions": [
        {
          "name": "Reduction (relocation and reduction of personal smoking) and cessation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Resident Endorsement",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 405,
      "start_date": "2022-02-03",
      "completion_date": "2025-07-31",
      "has_results": false,
      "last_update_posted_date": "2026-01-07",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05016505"
    },
    {
      "nct_id": "NCT06472869",
      "title": "Assessing E-Cigarettes for Tobacco Harm Reduction in the Context of Lung Cancer Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Electronic Cigarette Use",
        "Smoking, Cigarette",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "NJOY ACE e-cigarette",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "50 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2024-09-23",
      "completion_date": "2025-12-30",
      "has_results": true,
      "last_update_posted_date": "2026-01-16",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06472869"
    },
    {
      "nct_id": "NCT01308736",
      "title": "Varenicline-Aided Cigarette Reduction in Smokers Not Ready to Quit",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Placebo pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Rutgers, The State University of New Jersey",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 73,
      "start_date": "2011-01",
      "completion_date": "2014-02",
      "has_results": true,
      "last_update_posted_date": "2017-07-17",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01308736"
    },
    {
      "nct_id": "NCT03206710",
      "title": "Vitamin C Supplementation to Pregnant Smokers: Follow-up of 2 Randomized Trials Plus Changes in DNA Methylation",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Asthma",
        "Wheezing",
        "In Utero Nicotine",
        "Pulmonary Function"
      ],
      "interventions": [
        {
          "name": "No current intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Oregon Health and Science University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "11 Years",
        "sex": "ALL",
        "summary": "6 Months to 11 Years"
      },
      "enrollment_count": 395,
      "start_date": "2017-06-01",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2025-03-21",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 2,
      "location_summary": "Indianapolis, Indiana • Portland, Oregon",
      "locations": [
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Portland",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03206710"
    },
    {
      "nct_id": "NCT02628964",
      "title": "Electronic Cigarettes (E-cigarettes) as a Harm Reduction Strategy",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Disorder",
        "Smoking"
      ],
      "interventions": [
        {
          "name": "e-cigarettes",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "NYU Langone Health",
      "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": 100,
      "start_date": "2015-05",
      "completion_date": "2018-03-26",
      "has_results": true,
      "last_update_posted_date": "2020-02-24",
      "last_synced_at": "2026-05-22T08:45:45.879Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02628964"
    }
  ]
}