{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quitline+only",
    "query": {
      "intervention": "Quitline only"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 34,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quitline+only&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-03T09:36:16.400Z",
  "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": "NCT00989755",
      "title": "Center for Disease Control (CDC) Fax to Quit/Academic Detailing Grant",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Fax to Quit (F2Q)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "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": 49,
      "start_date": "2008-09",
      "completion_date": "2011-08",
      "has_results": false,
      "last_update_posted_date": "2015-12-09",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00989755"
    },
    {
      "nct_id": "NCT05733767",
      "title": "Smoking Cessation Pharmacotherapy-Nurse Practitioner Led Tobacco Treatment Team Study",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Cardiopulmonary Disease",
        "Smoking Cessation",
        "Inpatient"
      ],
      "interventions": [
        {
          "name": "Enhanced Usual Care (EUC)",
          "type": "OTHER"
        },
        {
          "name": "Nurse Practitioner Tobacco Treatment Team (NPT3)",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Baystate Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 424,
      "start_date": "2022-11-03",
      "completion_date": "2027-12-30",
      "has_results": false,
      "last_update_posted_date": "2025-12-30",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 1,
      "location_summary": "Springfield, Massachusetts",
      "locations": [
        {
          "city": "Springfield",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05733767"
    },
    {
      "nct_id": "NCT00820495",
      "title": "Effectiveness of a Web-Assisted Quitline for Smokeless Tobacco Users",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "Web + Phone",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Web Only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Phone Only",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Oregon Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1683,
      "start_date": "2009-05",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2013-08-05",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 2,
      "location_summary": "San Diego, California • Eugene, Oregon",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00820495"
    },
    {
      "nct_id": "NCT01651611",
      "title": "Intervention Study to Increase Smoking Cessation Rates Among Public Housing Residents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Cessation"
      ],
      "interventions": [
        {
          "name": "Motivational interviewing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Smoking cessation counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Navigation to smoking cessation resources",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Social support",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Boston University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 330,
      "start_date": "2011-09",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2016-08-29",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01651611"
    },
    {
      "nct_id": "NCT07102290",
      "title": "Pragmatic Trial of Text Messages to Recruit Unassisted Tobacco Users Into Quitline Service",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation Counselling"
      ],
      "interventions": [
        {
          "name": "Free Help",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Free Nicotine message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spanish: Free help message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Spanish: Free nicotine message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4171,
      "start_date": "2022-04-01",
      "completion_date": "2022-08-31",
      "has_results": false,
      "last_update_posted_date": "2025-12-15",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07102290"
    },
    {
      "nct_id": "NCT06088498",
      "title": "App for Reducing Cravings to Smoke",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Updating Existing Smartphone App",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Quitline Services",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Quitline Services and Smartphone App",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "H. Lee Moffitt Cancer Center and Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 3600,
      "start_date": "2024-06-11",
      "completion_date": "2027-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-09",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 1,
      "location_summary": "Tampa, Florida",
      "locations": [
        {
          "city": "Tampa",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06088498"
    },
    {
      "nct_id": "NCT04974580",
      "title": "Research and Innovation to Stop E-cigarette/Vaping in Young Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Nicotine Dependence",
        "E-Cig Use"
      ],
      "interventions": [
        {
          "name": "Nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Phone Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Digital Coaching",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Ohio State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "18 Years to 24 Years"
      },
      "enrollment_count": 508,
      "start_date": "2021-07-28",
      "completion_date": "2022-12-30",
      "has_results": true,
      "last_update_posted_date": "2024-07-29",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04974580"
    },
    {
      "nct_id": "NCT01678118",
      "title": "Tobacco-Focused Patient Navigation to Address Barriers to Utilization of Community-Based Smoking Cessation Services in Primary Care",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Minority Smokers"
      ],
      "interventions": [
        {
          "name": "Patient Navigator",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 16,
      "start_date": "2011-04",
      "completion_date": "2021-07-20",
      "has_results": false,
      "last_update_posted_date": "2021-07-27",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 2,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01678118"
    },
    {
      "nct_id": "NCT03064971",
      "title": "Enhancing Quitline Services for African American Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use Cessation"
      ],
      "interventions": [
        {
          "name": "Standard Care",
          "type": "BEHAVIORAL"
        },
        {
          "name": "smoking cessation DVD",
          "type": "BEHAVIORAL"
        },
        {
          "name": "PTF DVD",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Case Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1050,
      "start_date": "2017-05-22",
      "completion_date": "2020-06-24",
      "has_results": false,
      "last_update_posted_date": "2020-08-19",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 1,
      "location_summary": "Cleveland, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03064971"
    },
    {
      "nct_id": "NCT03177265",
      "title": "Text Messaging to Engage and Retain Veterans in Smoking Cessation Counseling",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Nicotine Dependence"
      ],
      "interventions": [
        {
          "name": "Text messaging prior to first counseling call",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text-to-Enhance",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mail Notice",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Telephone Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 432,
      "start_date": "2018-11-08",
      "completion_date": "2021-11-01",
      "has_results": false,
      "last_update_posted_date": "2021-11-09",
      "last_synced_at": "2026-09-03T09:36:16.400Z",
      "location_count": 2,
      "location_summary": "San Diego, California • New York, New York",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03177265"
    }
  ]
}