{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Standard+Duration+Varenicline",
    "query": {
      "intervention": "Standard Duration Varenicline"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 12,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Standard+Duration+Varenicline&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-20T13:12:53.533Z",
  "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": "NCT01162239",
      "title": "Maintaining Nonsmoking",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Initial Individual counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Check-ins with medical staff",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Extended Individual Counseling - Health Model",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Extended Individual Counseling - Relapse Prevention Model",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 216,
      "start_date": "2010-05",
      "completion_date": "2016-06",
      "has_results": true,
      "last_update_posted_date": "2020-11-12",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01162239"
    },
    {
      "nct_id": "NCT04525755",
      "title": "STARS (Smoking Treatment And Remote Sampling) Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Smoking",
        "Smoking Cessation",
        "Tobacco Smoking",
        "Cigarette Smoking"
      ],
      "interventions": [
        {
          "name": "Varenicline 0.5 MG",
          "type": "DRUG"
        },
        {
          "name": "Nicotine Replacement Therapy (NRT)",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Medical University of South Carolina",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 652,
      "start_date": "2021-02-08",
      "completion_date": "2025-04-05",
      "has_results": true,
      "last_update_posted_date": "2026-02-17",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 1,
      "location_summary": "Charleston, South Carolina",
      "locations": [
        {
          "city": "Charleston",
          "state": "South Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04525755"
    },
    {
      "nct_id": "NCT04188873",
      "title": "Cessation Screening Project",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Preparation Varenicline and Standard Duration Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Preparation Varenicline and Extended Duration Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Standard Duration Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Extended Duration Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Preparation Combination NRT and Standard Duration Combination NRT",
          "type": "DRUG"
        },
        {
          "name": "Preparation Combination NRT and Extended Duration Combination NRT",
          "type": "DRUG"
        },
        {
          "name": "Standard Duration Combination NRT",
          "type": "DRUG"
        },
        {
          "name": "Extended Duration Combination NRT",
          "type": "DRUG"
        },
        {
          "name": "Intensive Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Minimal Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 538,
      "start_date": "2020-12-10",
      "completion_date": "2025-05-08",
      "has_results": true,
      "last_update_posted_date": "2026-06-17",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 2,
      "location_summary": "Madison, Wisconsin • Milwaukee, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        },
        {
          "city": "Milwaukee",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04188873"
    },
    {
      "nct_id": "NCT01156610",
      "title": "Tobacco Treatment Outreach to Reduce Disparities for Primary Care Populations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking",
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Tobacco Treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 706,
      "start_date": "2011-11",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2014-03-06",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 2,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01156610"
    },
    {
      "nct_id": "NCT04199117",
      "title": "Health Systems Reach Interventions Project",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking, Cigarette",
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Combination nicotine patch and nicotine mini-lozenge treatment",
          "type": "DRUG"
        },
        {
          "name": "Monetary incentives for initiating treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Automated tailored outreach",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Care management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wisconsin Tobacco Quit Line referral",
          "type": "OTHER"
        },
        {
          "name": "Primary care provider referral",
          "type": "OTHER"
        },
        {
          "name": "Untailored outreach",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Multiple smoking cessation coaching calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 210,
      "start_date": "2020-03-11",
      "completion_date": "2024-10-16",
      "has_results": true,
      "last_update_posted_date": "2025-09-24",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04199117"
    },
    {
      "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": "2026-09-20T13:12:53.533Z",
      "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": "NCT02941718",
      "title": "Examination of Sleep, Smoking Cessation, and Cardiovascular Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Sleep Advancement Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "General Health Information",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Delaware",
      "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": 30,
      "start_date": "2016-11-01",
      "completion_date": "2019-01-17",
      "has_results": false,
      "last_update_posted_date": "2019-08-30",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 1,
      "location_summary": "Newark, Delaware",
      "locations": [
        {
          "city": "Newark",
          "state": "Delaware"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02941718"
    },
    {
      "nct_id": "NCT04798664",
      "title": "Comparing Smoking Cessation Interventions Among Underserved Patients Referred for Lung Cancer Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Removal of Financial Barriers",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Financial Incentives",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mobile Health Application",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3228,
      "start_date": "2021-05-17",
      "completion_date": "2025-04-29",
      "has_results": true,
      "last_update_posted_date": "2026-02-25",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 5,
      "location_summary": "Oakland, California • Detroit, Michigan • Danville, Pennsylvania + 2 more",
      "locations": [
        {
          "city": "Oakland",
          "state": "California"
        },
        {
          "city": "Detroit",
          "state": "Michigan"
        },
        {
          "city": "Danville",
          "state": "Pennsylvania"
        },
        {
          "city": "Lancaster",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04798664"
    },
    {
      "nct_id": "NCT04738643",
      "title": "Improving Tobacco Treatment Rates for Cancer Patients Who Smoke",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer",
        "Tobacco Use",
        "Smoking",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Tobacco Use Treatment Service and Varenicline Management",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 685,
      "start_date": "2022-06-28",
      "completion_date": "2024-01-24",
      "has_results": true,
      "last_update_posted_date": "2025-05-08",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 2,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04738643"
    },
    {
      "nct_id": "NCT01756885",
      "title": "Extended Varenicline Treatment for Smoking Among Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Smoking Cessation Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 207,
      "start_date": "2013-01",
      "completion_date": "2018-05-31",
      "has_results": true,
      "last_update_posted_date": "2019-07-30",
      "last_synced_at": "2026-09-20T13:12:53.533Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01756885"
    }
  ]
}