{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quitline+Counseling+Phone+Calls",
    "query": {
      "intervention": "Quitline Counseling Phone Calls"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 37,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Quitline+Counseling+Phone+Calls&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T09:50:02.371Z",
  "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": "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": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Columbus, Ohio",
      "locations": [
        {
          "city": "Columbus",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04974580"
    },
    {
      "nct_id": "NCT03603496",
      "title": "Post-Discharge Smoking Cessation Strategies: Helping HAND 4",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Transitional Tobacco Care Management (TTCM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "eReferral to State Tobacco Quitline (QL)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicotine replacement therapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1416,
      "start_date": "2018-09-01",
      "completion_date": "2020-11-17",
      "has_results": true,
      "last_update_posted_date": "2022-05-05",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts • Pittsburgh, Pennsylvania • Nashville, Tennessee",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03603496"
    },
    {
      "nct_id": "NCT01788787",
      "title": "Ask Advise Connect (AAC) Harris Heath CPRIT",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Tobacco Use Cessation"
      ],
      "interventions": [
        {
          "name": "Quitline-Delivered Proactive Telephone Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Follow-Up Phone Call",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Smoking Cessation Training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Qualitative Interviews Concerning the Implementation of AAC",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson 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": 5212,
      "start_date": "2013-04",
      "completion_date": "2049-04",
      "has_results": false,
      "last_update_posted_date": "2019-05-28",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01788787"
    },
    {
      "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": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03538938"
    },
    {
      "nct_id": "NCT03612895",
      "title": "Proactive Population Health Strategy to Offer Tobacco Dependence Treatment to Smokers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking, Tobacco"
      ],
      "interventions": [
        {
          "name": "Internal Care Coordination",
          "type": "BEHAVIORAL"
        },
        {
          "name": "External Community Referral",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 234,
      "start_date": "2016-04",
      "completion_date": "2017-08",
      "has_results": false,
      "last_update_posted_date": "2018-08-02",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03612895"
    },
    {
      "nct_id": "NCT02873377",
      "title": "Smoking Cessation in Hispanic Construction Workers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Nicorette Gum",
          "type": "DRUG"
        },
        {
          "name": "Nicoderm CQ",
          "type": "DRUG"
        },
        {
          "name": "Smoking Quitline Referral",
          "type": "OTHER"
        },
        {
          "name": "Behavioral Smoking Cessation Counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Miami",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 134,
      "start_date": "2017-04-13",
      "completion_date": "2018-10-11",
      "has_results": true,
      "last_update_posted_date": "2019-11-07",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Miami, Florida",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02873377"
    },
    {
      "nct_id": "NCT03900767",
      "title": "Strategies to Connect Patients at Federally Qualified Health Clinics With Evidence Based Tobacco Cessation Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Current Smoker",
        "Tobacco Smoking",
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Ask-Advise-Connect (AAC)",
          "type": "OTHER"
        },
        {
          "name": "Text Messaging (TM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Motivation And Problem-Solving (MAPS)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Quitline",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 12009,
      "start_date": "2021-07-20",
      "completion_date": "2023-03-31",
      "has_results": true,
      "last_update_posted_date": "2026-09-08",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03900767"
    },
    {
      "nct_id": "NCT01434342",
      "title": "Feasibility of Delivering a Quitline Based Smoking Cessation Intervention in Cancer Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "EARLY_PHASE1"
      ],
      "conditions": [
        "Lung Cancer",
        "Tobacco Use Disorder",
        "Breast Cancer",
        "Colorectal Cancer",
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "Nicotine Replacement Patch",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "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": 146,
      "start_date": "2011-10-01",
      "completion_date": "2015-01-01",
      "has_results": true,
      "last_update_posted_date": "2021-09-28",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01434342"
    },
    {
      "nct_id": "NCT03670264",
      "title": "BE Smokefree: Behavioral Economics Incentives to Engage Adolescents in Smoking Cessation",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Quitline Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Tobacco Cessation Incentive",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Way to Health (WTH) Platform",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Quitline Delivered Treatment",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "14 Years",
        "maximum_age": "21 Years",
        "sex": "ALL",
        "summary": "14 Years to 21 Years"
      },
      "enrollment_count": 15,
      "start_date": "2018-09-21",
      "completion_date": "2021-03-19",
      "has_results": true,
      "last_update_posted_date": "2021-07-13",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03670264"
    },
    {
      "nct_id": "NCT00570804",
      "title": "Combined Treatment for Tobacco and Alcohol Use in Puerto Rico",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking"
      ],
      "interventions": [
        {
          "name": "Telephone Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Telephone Assessments",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson 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": 370,
      "start_date": "2007-12",
      "completion_date": "2021-07-22",
      "has_results": false,
      "last_update_posted_date": "2021-07-28",
      "last_synced_at": "2026-09-26T09:50:02.371Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00570804"
    }
  ]
}