{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=21+days+of+Tobacco+Cessation&page=3",
    "query": {
      "intervention": "21 days of Tobacco Cessation",
      "page": 3
    },
    "page_size": 10
  },
  "pagination": {
    "page": 3,
    "page_size": 10,
    "total_count": 65,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=21+days+of+Tobacco+Cessation&page=4&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=21+days+of+Tobacco+Cessation&page=2&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-10T20:17:02.595Z",
  "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": "NCT03169101",
      "title": "Cognition and Smoking Relapse (HCS)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Behavioral 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": 274,
      "start_date": "2016-07-01",
      "completion_date": "2022-04-25",
      "has_results": true,
      "last_update_posted_date": "2024-05-10",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03169101"
    },
    {
      "nct_id": "NCT02873754",
      "title": "Smoking Treatment and Exercise Program for Underserved Populations (STEP UP)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Cognitive Behavioral Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mobile Contingency Management",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Bupropion",
          "type": "DRUG"
        },
        {
          "name": "Transdermal nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Nicotine polacrilex",
          "type": "DRUG"
        },
        {
          "name": "Nicotine lozenge",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 11,
      "start_date": "2017-01",
      "completion_date": "2017-07",
      "has_results": true,
      "last_update_posted_date": "2018-07-13",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02873754"
    },
    {
      "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": "2026-10-05",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04199117"
    },
    {
      "nct_id": "NCT03538938",
      "title": "Improving Quitline Support Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Tobacco Use Cessation"
      ],
      "interventions": [
        {
          "name": "1-Call Quitline Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "4-Call Quitline Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Nicotine Patch and Nicotine Lozenge",
          "type": "DRUG"
        },
        {
          "name": "SmokefreeTXT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No SmokefreeTXT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Financial Incentives for Treatment Engagement",
          "type": "BEHAVIORAL"
        },
        {
          "name": "No Financial Incentives for Treatment Engagement",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "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": 1316,
      "start_date": "2018-06-07",
      "completion_date": "2023-08-15",
      "has_results": true,
      "last_update_posted_date": "2024-07-12",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03538938"
    },
    {
      "nct_id": "NCT00064844",
      "title": "Combination Nicotine Replacement for Alcoholic Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking",
        "Alcoholism"
      ],
      "interventions": [
        {
          "name": "Cognitive Behavior Therapy for alcohol and smoking cessation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicoderm CQ nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo gum",
          "type": "DRUG"
        },
        {
          "name": "Nicotine gum - Nicorette®",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 96,
      "start_date": "2002-08",
      "completion_date": "2006-07",
      "has_results": true,
      "last_update_posted_date": "2021-08-13",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Newington, Connecticut",
      "locations": [
        {
          "city": "Newington",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00064844"
    },
    {
      "nct_id": "NCT01368653",
      "title": "Evaluation of Learning-Theory-Based Smoking Cessation Strategies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Standard treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard treatment+practice quitting",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Very low nicotine cigarettes",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Rutgers University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 93,
      "start_date": "2012-06",
      "completion_date": "2013-08",
      "has_results": true,
      "last_update_posted_date": "2022-04-27",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "New Brunswick, New Jersey",
      "locations": [
        {
          "city": "New Brunswick",
          "state": "New Jersey"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01368653"
    },
    {
      "nct_id": "NCT01048944",
      "title": "Nicotine Replacement Therapy (NRT) and Bupropion Mechanisms of Effectiveness in Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Bupropion SR",
          "type": "DRUG"
        },
        {
          "name": "Nicotine Patch",
          "type": "DRUG"
        },
        {
          "name": "Placebo Patch and Placebo Pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Southern Illinois University Carbondale",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "18 Years to 55 Years"
      },
      "enrollment_count": 197,
      "start_date": "2005-06",
      "completion_date": "2013-01",
      "has_results": true,
      "last_update_posted_date": "2014-11-25",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Carbondale, Illinois",
      "locations": [
        {
          "city": "Carbondale",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01048944"
    },
    {
      "nct_id": "NCT05683821",
      "title": "BREATHE 2 Clinic Stop-Smoking Treatment Outreach Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Quitting Smoking",
        "Smoking Cessation",
        "Smoking, Cigarette"
      ],
      "interventions": [
        {
          "name": "Text message smoking treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicotine replacement therapy sampling",
          "type": "DRUG"
        },
        {
          "name": "Wisconsin Tobacco QuitLine Referral",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Referral to Primary Care Provider",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "BREATHE 2 Cessation Study",
          "type": "COMBINATION_PRODUCT"
        },
        {
          "name": "Additional modalities to learn about and request treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG",
        "COMBINATION_PRODUCT"
      ],
      "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": 12376,
      "start_date": "2023-07-24",
      "completion_date": "2025-05-07",
      "has_results": true,
      "last_update_posted_date": "2026-06-26",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05683821"
    },
    {
      "nct_id": "NCT01328431",
      "title": "Treating Low-Income Smokers in the Hospital Emergency Department",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Cessation",
        "Smoking Cessation",
        "Smoking",
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Brief Intervention with NRT Initiation",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 780,
      "start_date": "2010-10",
      "completion_date": "2014-01",
      "has_results": true,
      "last_update_posted_date": "2014-08-04",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01328431"
    },
    {
      "nct_id": "NCT00756275",
      "title": "Varenicline and Motivational Advice for Smokers With Substance Use Disorders",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation",
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Nicotine Replacement Treatment (NRT)",
          "type": "DRUG"
        },
        {
          "name": "varenicline",
          "type": "DRUG"
        },
        {
          "name": "Behavioral counseling for smoking cessation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 158,
      "start_date": "2009-01",
      "completion_date": "2014-09",
      "has_results": true,
      "last_update_posted_date": "2018-08-27",
      "last_synced_at": "2026-10-10T20:17:02.595Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00756275"
    }
  ]
}