{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=varenicline+tartrate&page=5",
    "query": {
      "intervention": "varenicline tartrate",
      "page": 5
    },
    "page_size": 10
  },
  "pagination": {
    "page": 5,
    "page_size": 10,
    "total_count": 273,
    "total_pages": 28,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=varenicline+tartrate&page=6&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=varenicline+tartrate&page=4&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-14T18:22:49.981Z",
  "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": "NCT05277207",
      "title": "Tobacco Cessation Treatment Preferences Among Veteran Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Personalized Smoking Cessation Facilitation Meetings",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Personalized Smoking Cessation Pharmacotherapy",
          "type": "DRUG"
        },
        {
          "name": "Personalized Text Messaging Support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SmokefreeVET",
          "type": "BEHAVIORAL"
        },
        {
          "name": "VA Quitline",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Education about pharmacotherapy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG",
        "OTHER"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30,
      "start_date": "2022-05-02",
      "completion_date": "2023-09-27",
      "has_results": true,
      "last_update_posted_date": "2024-05-07",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05277207"
    },
    {
      "nct_id": "NCT01532232",
      "title": "Tobacco Dependence in Breast Cancer Patients Trial of Varenicline (Chantix)",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer",
        "Tobacco Dependence"
      ],
      "interventions": [
        {
          "name": "placebo",
          "type": "DRUG"
        },
        {
          "name": "varenicline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Memorial Sloan Kettering Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 7,
      "start_date": "2012-02",
      "completion_date": "2014-10",
      "has_results": false,
      "last_update_posted_date": "2015-12-23",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01532232"
    },
    {
      "nct_id": "NCT00143325",
      "title": "An Open Label Study That Compares Varenicline to Transdermal Nicotine Patch for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "varenicline (CP-526,555)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 730,
      "start_date": "2005-01",
      "completion_date": "2006-06",
      "has_results": false,
      "last_update_posted_date": "2007-06-04",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 6,
      "location_summary": "Palo Alto, California • Santa Ana, California • Farmington, Connecticut + 3 more",
      "locations": [
        {
          "city": "Palo Alto",
          "state": "California"
        },
        {
          "city": "Santa Ana",
          "state": "California"
        },
        {
          "city": "Farmington",
          "state": "Connecticut"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00143325"
    },
    {
      "nct_id": "NCT01106456",
      "title": "Smoking Cessation for American Indians",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "All Nations Breath of Life (ANBL)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nontailored program (NT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pharmacotherapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Won Choi, PhD, MPH",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 463,
      "start_date": "2010-09",
      "completion_date": "2014-07",
      "has_results": true,
      "last_update_posted_date": "2017-04-26",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 2,
      "location_summary": "Kansas City, Kansas • Oklahoma City, Oklahoma",
      "locations": [
        {
          "city": "Kansas City",
          "state": "Kansas"
        },
        {
          "city": "Oklahoma City",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01106456"
    },
    {
      "nct_id": "NCT00143286",
      "title": "A 52-Week Multicenter Study Evaluating the Safety and Efficacy of Varenicline for the Maintenance of Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "varenicline (CP-526,555)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Pfizer",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 2000,
      "start_date": "2003-04",
      "completion_date": "2005-03",
      "has_results": false,
      "last_update_posted_date": "2007-06-04",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 6,
      "location_summary": "Santa Ana, California • West Palm Beach, Florida • Lexington, Kentucky + 3 more",
      "locations": [
        {
          "city": "Santa Ana",
          "state": "California"
        },
        {
          "city": "West Palm Beach",
          "state": "Florida"
        },
        {
          "city": "Lexington",
          "state": "Kentucky"
        },
        {
          "city": "Mogadore",
          "state": "Ohio"
        },
        {
          "city": "Dallas",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00143286"
    },
    {
      "nct_id": "NCT00580853",
      "title": "The Effect of Varenicline (Chantix) and Bupropion (Zyban) on Smoking Lapse Behavior",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Smoking Lapse Behavior"
      ],
      "interventions": [
        {
          "name": "varenicline",
          "type": "DRUG"
        },
        {
          "name": "bupropion",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "21 Years to 55 Years"
      },
      "enrollment_count": 62,
      "start_date": "2007-04",
      "completion_date": "2016-10",
      "has_results": true,
      "last_update_posted_date": "2018-02-08",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00580853"
    },
    {
      "nct_id": "NCT04036292",
      "title": "Evaluation of the Efficacy and Safety of OC-01 Nasal Spray on Signs and Symptoms of Dry Eye Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Dry Eye Disease (DED)"
      ],
      "interventions": [
        {
          "name": "OC-01 (varenicline) nasal spray",
          "type": "DRUG"
        },
        {
          "name": "Placebo (vehicle) nasal spray",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Oyster Point Pharma, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "22 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "22 Years and older"
      },
      "enrollment_count": 758,
      "start_date": "2019-07-23",
      "completion_date": "2021-02-05",
      "has_results": true,
      "last_update_posted_date": "2021-11-22",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 22,
      "location_summary": "Phoenix, Arizona • Newport Beach, California • Fort Collins, Colorado + 18 more",
      "locations": [
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Newport Beach",
          "state": "California"
        },
        {
          "city": "Fort Collins",
          "state": "Colorado"
        },
        {
          "city": "Waterbury",
          "state": "Connecticut"
        },
        {
          "city": "Delray Beach",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04036292"
    },
    {
      "nct_id": "NCT00525928",
      "title": "Mood and Anti-craving Effects of Varenicline in Psychiatric Inpatients",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Depressive Disorder"
      ],
      "interventions": [
        {
          "name": "varenicline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Butler 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": 0,
      "start_date": "2007-10",
      "completion_date": "2008-10",
      "has_results": false,
      "last_update_posted_date": "2015-07-21",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00525928"
    },
    {
      "nct_id": "NCT00781755",
      "title": "Treating Schizophrenic Smokers: Effects on Craving, Cues and Withdrawal",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "varenicline",
          "type": "DRUG"
        },
        {
          "name": "Adaptation of Motivational Interviewing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "VA Boston Healthcare System",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 0,
      "start_date": null,
      "completion_date": null,
      "has_results": false,
      "last_update_posted_date": "2015-06-04",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 1,
      "location_summary": "Brockton, Massachusetts",
      "locations": [
        {
          "city": "Brockton",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00781755"
    },
    {
      "nct_id": "NCT00749658",
      "title": "Human Laboratory Study of Varenicline and Bupropion for Nicotine Dependence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Nicotine Dependence",
        "Nicotine Withdrawal"
      ],
      "interventions": [
        {
          "name": "Bupropion",
          "type": "DRUG"
        },
        {
          "name": "Varenicline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 121,
      "start_date": "2008-11",
      "completion_date": "2010-09",
      "has_results": true,
      "last_update_posted_date": "2020-11-23",
      "last_synced_at": "2026-10-14T18:22:49.981Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00749658"
    }
  ]
}