{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Telephone+Quitline&page=4",
    "query": {
      "intervention": "Telephone Quitline",
      "page": 4
    },
    "page_size": 10
  },
  "pagination": {
    "page": 4,
    "page_size": 10,
    "total_count": 103,
    "total_pages": 11,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Telephone+Quitline&page=5&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Telephone+Quitline&page=3&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-11-15T21:18:15.600Z",
  "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": "NCT02997735",
      "title": "Parent eReferral to Tobacco Quitline",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Secondhand Smoke"
      ],
      "interventions": [
        {
          "name": "Quitline Delivered Treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 484,
      "start_date": "2017-01-11",
      "completion_date": "2018-08",
      "has_results": true,
      "last_update_posted_date": "2019-10-28",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02997735"
    },
    {
      "nct_id": "NCT01867983",
      "title": "Comparative Effectiveness of Adding Weight Control to Smoking Cessation Quitlines",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cigarette Smoking",
        "Overweight",
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Weight gain prevention and smoking cessation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Smoking cessation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Consumer Wellness Solutions",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2540,
      "start_date": "2013-08",
      "completion_date": "2016-03",
      "has_results": false,
      "last_update_posted_date": "2016-04-15",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01867983"
    },
    {
      "nct_id": "NCT00888992",
      "title": "Technology-Enhanced Quitline Services to Prevent Smoking Relapse",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Quitline Service + 10 automated monitoring calls",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Quitline service + 20 automated monitoring calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Indiana University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1785,
      "start_date": "2010-04",
      "completion_date": "2014-03",
      "has_results": false,
      "last_update_posted_date": "2015-04-03",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00888992"
    },
    {
      "nct_id": "NCT03096145",
      "title": "Support Person Intervention to Promote a Smoking Helpline Among Under Resourced Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Cessation"
      ],
      "interventions": [
        {
          "name": "Telephone counseling 1 session",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mobile texting",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Health incentive",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Mayo Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2017-05-01",
      "completion_date": "2019-08-24",
      "has_results": false,
      "last_update_posted_date": "2019-12-11",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "Rochester, Minnesota",
      "locations": [
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03096145"
    },
    {
      "nct_id": "NCT03670316",
      "title": "Effectiveness of a Smoking Cessation Algorithm Integrated Into HIV Primary Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "HIV",
        "AIDS",
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Algorithm Treatment",
          "type": "DRUG"
        },
        {
          "name": "Quitline only",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 371,
      "start_date": "2020-08-17",
      "completion_date": "2025-06-30",
      "has_results": true,
      "last_update_posted_date": "2026-05-22",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03670316"
    },
    {
      "nct_id": "NCT00851357",
      "title": "Telephone Counseling and the Distribution of Nicotine Patches to Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Nicotine Patch",
          "type": "DRUG"
        },
        {
          "name": "Telephone Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Placebo",
          "type": "DRUG"
        },
        {
          "name": "Self-Help Materials",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4200,
      "start_date": "2009-02",
      "completion_date": "2011-12",
      "has_results": true,
      "last_update_posted_date": "2020-02-13",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00851357"
    },
    {
      "nct_id": "NCT02730260",
      "title": "Worksite Phone Counseling for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Nondirective smoking cessation coaching",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Directive smoking cessation coaching",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 518,
      "start_date": "2005-02",
      "completion_date": "2008-09",
      "has_results": true,
      "last_update_posted_date": "2016-12-23",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02730260"
    },
    {
      "nct_id": "NCT04675515",
      "title": "CORE: CO Monitoring for Reach and Efficacy in Tobacco Treatment for Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Use",
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Intensive Tobacco Treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Dartmouth-Hitchcock 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": 2,
      "start_date": "2021-01-19",
      "completion_date": "2024-02-16",
      "has_results": false,
      "last_update_posted_date": "2025-07-14",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "Lebanon, New Hampshire",
      "locations": [
        {
          "city": "Lebanon",
          "state": "New Hampshire"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04675515"
    },
    {
      "nct_id": "NCT01457469",
      "title": "Enhanced Quitline Intervention in Smoking Cessation for Patients With Non-Metastatic Lung Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Limited Stage Small Cell Lung Cancer",
        "Recurrent Small Cell Lung Cancer",
        "Stage IA Non-small Cell Lung Cancer",
        "Stage IB Non-small Cell Lung Cancer",
        "Stage IIA Non-small Cell Lung Cancer",
        "Stage IIB Non-small Cell Lung Cancer",
        "Stage IIIA Non-small Cell Lung Cancer",
        "Stage IIIB Non-small Cell Lung Cancer",
        "Tobacco Use Disorder"
      ],
      "interventions": [
        {
          "name": "questionnaire administration",
          "type": "OTHER"
        },
        {
          "name": "quality-of-life assessment",
          "type": "PROCEDURE"
        },
        {
          "name": "counseling intervention",
          "type": "OTHER"
        },
        {
          "name": "internet-based intervention",
          "type": "OTHER"
        },
        {
          "name": "telephone-based intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "educational intervention",
          "type": "OTHER"
        },
        {
          "name": "nicotine replacement therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "OTHER",
        "PROCEDURE",
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 6,
      "start_date": "2011-01",
      "completion_date": "2012-05",
      "has_results": false,
      "last_update_posted_date": "2018-08-01",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01457469"
    },
    {
      "nct_id": "NCT01363245",
      "title": "Effectiveness of Smoking-cessation Interventions for Urban Hospital Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Telephone Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Fax-to-quit",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1618,
      "start_date": "2011-07",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2015-07-02",
      "last_synced_at": "2026-11-15T21:18:15.600Z",
      "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/NCT01363245"
    }
  ]
}