{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Telephone-based+intervention&page=40",
    "query": {
      "intervention": "Telephone-based intervention",
      "page": 40
    },
    "page_size": 10
  },
  "pagination": {
    "page": 40,
    "page_size": 10,
    "total_count": 1710,
    "total_pages": 171,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Telephone-based+intervention&page=41&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Telephone-based+intervention&page=39&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-23T22:28:29.367Z",
  "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": "NCT01892813",
      "title": "Dissemination of a Tailored Tobacco Quitline for Rural Veteran Smokers",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Nicotine Dependence",
        "Tobacco Use"
      ],
      "interventions": [
        {
          "name": "Nicotine replacement therapy - Transdermal nicotine patch",
          "type": "DRUG"
        },
        {
          "name": "Nicotine replacement therapy - Nicotine gum",
          "type": "DRUG"
        },
        {
          "name": "Nicotine replacement therapy - Nicotine lozenge",
          "type": "DRUG"
        },
        {
          "name": "Bupropion",
          "type": "DRUG"
        },
        {
          "name": "Varenicline",
          "type": "DRUG"
        },
        {
          "name": "Combination pharmacotherapy - Transdermal nicotine patch + nicotine gum",
          "type": "DRUG"
        },
        {
          "name": "Combination pharmacotherapy - Transdermal nicotine patch + nicotine lozenge",
          "type": "DRUG"
        },
        {
          "name": "Combination pharmacotherapy - Transdermal nicotine patch + bupropion",
          "type": "DRUG"
        },
        {
          "name": "Tobacco quitline referral",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Tailored behavioral intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Alcohol use risk reduction",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral activation for depressive symptoms",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral management of postcessation weight gain",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "Mark Vander Weg",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 411,
      "start_date": "2013-07",
      "completion_date": "2018-01",
      "has_results": false,
      "last_update_posted_date": "2017-07-11",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01892813"
    },
    {
      "nct_id": "NCT00983580",
      "title": "Acetylsalicylic Acid and Eflornithine in Treating Patients at High Risk for Colorectal Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Adenomatous Polyp"
      ],
      "interventions": [
        {
          "name": "Aspirin",
          "type": "DRUG"
        },
        {
          "name": "Eflornithine",
          "type": "DRUG"
        },
        {
          "name": "Laboratory Biomarker Analysis",
          "type": "OTHER"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        },
        {
          "name": "Telephone-Based Intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "National Cancer Institute (NCI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "40 Years and older"
      },
      "enrollment_count": 107,
      "start_date": "2009-08-20",
      "completion_date": "2019-08-13",
      "has_results": true,
      "last_update_posted_date": "2019-09-04",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 3,
      "location_summary": "Chicago, Illinois • Rochester, Minnesota",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Rochester",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00983580"
    },
    {
      "nct_id": "NCT03746756",
      "title": "Recovery Management Checkups for Primary Care Experiment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Substance Use Disorders"
      ],
      "interventions": [
        {
          "name": "SBIRT",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SBIRT+RMC-PC",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Chestnut Health Systems",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 266,
      "start_date": "2017-10-01",
      "completion_date": "2022-02-28",
      "has_results": false,
      "last_update_posted_date": "2024-07-15",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 4,
      "location_summary": "Chicago, Illinois • Lansing, Illinois • Oak Park, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Lansing",
          "state": "Illinois"
        },
        {
          "city": "Oak Park",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03746756"
    },
    {
      "nct_id": "NCT01936441",
      "title": "MsFLASH-04: Pilot Trial: Telephone Behavioral Therapy for Menopause-related Sleep Disturbance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hot Flashes",
        "Menopause",
        "Vasomotor Disturbance",
        "Sleep"
      ],
      "interventions": [
        {
          "name": "Cognitive Behavioral Therapy-Insomnia (CBT-I)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Menopause Education Control (MEC)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 65 Years · Female only"
      },
      "enrollment_count": 106,
      "start_date": "2013-11",
      "completion_date": "2015-06",
      "has_results": false,
      "last_update_posted_date": "2015-10-22",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "Seattle, Washington",
      "locations": [
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01936441"
    },
    {
      "nct_id": "NCT01372527",
      "title": "Population-Based Patient-Centric Care: Comprehensive Preventive Cancer Screening Using Health IT",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer",
        "Colorectal Cancer",
        "Cervical Cancer"
      ],
      "interventions": [
        {
          "name": "TopCare: Use of provider knowledge vs. automated system",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "21 Years to 75 Years"
      },
      "enrollment_count": 103870,
      "start_date": "2011-06",
      "completion_date": "2013-01",
      "has_results": false,
      "last_update_posted_date": "2014-10-03",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01372527"
    },
    {
      "nct_id": "NCT04501016",
      "title": "A Stepped Care Approach to Treating Tobacco Use in Rural Veterans",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Tobacco Cessation"
      ],
      "interventions": [
        {
          "name": "Tailored behavioral counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Tobacco cessation pharmacotherapy",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Iowa City Veterans Affairs Medical Center",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 100,
      "start_date": "2020-09",
      "completion_date": "2023-09",
      "has_results": false,
      "last_update_posted_date": "2020-08-06",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04501016"
    },
    {
      "nct_id": "NCT02163252",
      "title": "Using a State-wide Initiative to Disseminate Effective Behavioral Weight Loss Strategies: Study 5",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Standard",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Early Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The Miriam Hospital",
      "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": 110,
      "start_date": "2014-02",
      "completion_date": "2014-07",
      "has_results": false,
      "last_update_posted_date": "2015-02-19",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02163252"
    },
    {
      "nct_id": "NCT04310826",
      "title": "Dietary Magnesium in Preventing Low Blood Magnesium Levels in Patients With Ovarian Cancer Receiving Carboplatin Chemotherapy",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Ovarian Carcinoma"
      ],
      "interventions": [
        {
          "name": "Dietary Intervention",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Media Intervention",
          "type": "OTHER"
        },
        {
          "name": "Telephone-Based Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DIETARY_SUPPLEMENT",
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "18 Years and older · Female only"
      },
      "enrollment_count": 26,
      "start_date": "2019-04-23",
      "completion_date": "2028-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-21",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04310826"
    },
    {
      "nct_id": "NCT02721602",
      "title": "Families Preventing Diabetes Together",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Type 2 Diabetes",
        "Pediatric Obesity"
      ],
      "interventions": [
        {
          "name": "Families Preventing Diabetes Together",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "2 Years",
        "maximum_age": "55 Years",
        "sex": "ALL",
        "summary": "2 Years to 55 Years"
      },
      "enrollment_count": 7,
      "start_date": "2016-02",
      "completion_date": "2017-06-30",
      "has_results": false,
      "last_update_posted_date": "2017-08-24",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02721602"
    },
    {
      "nct_id": "NCT04199052",
      "title": "LinkPositively: A Technology-Delivered Peer Navigation and Social Networking Intervention to Improve HIV Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV/AIDS"
      ],
      "interventions": [
        {
          "name": "LinkPositively",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "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": 53,
      "start_date": "2021-09-14",
      "completion_date": "2023-10-31",
      "has_results": true,
      "last_update_posted_date": "2025-07-03",
      "last_synced_at": "2026-10-23T22:28:29.367Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04199052"
    }
  ]
}