{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=telephone+counseling&page=8",
    "query": {
      "intervention": "telephone counseling",
      "page": 8
    },
    "page_size": 10
  },
  "pagination": {
    "page": 8,
    "page_size": 10,
    "total_count": 1032,
    "total_pages": 104,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=telephone+counseling&page=9&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=telephone+counseling&page=7&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-13T06:05:17.571Z",
  "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": "NCT03473145",
      "title": "Sedentary Behavior Interrupted Randomized Controlled Trial (P2)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sedentary Lifestyle"
      ],
      "interventions": [
        {
          "name": "Health Coaching",
          "type": "BEHAVIORAL"
        },
        {
          "name": "activPAL inclinometer",
          "type": "DEVICE"
        },
        {
          "name": "Tools to Prompt Standing or Prompt Sit-to-Stand Transitions.",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "55 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "55 Years and older · Female only"
      },
      "enrollment_count": 407,
      "start_date": "2018-05-30",
      "completion_date": "2024-12-31",
      "has_results": true,
      "last_update_posted_date": "2025-11-03",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "La Jolla, California",
      "locations": [
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03473145"
    },
    {
      "nct_id": "NCT06543394",
      "title": "Engaging Patients in Adherence Interventions Using Behavioral Science",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Uncontrolled Hypertension"
      ],
      "interventions": [
        {
          "name": "Primer postcard",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control recruitment letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Behavioral theory-informed recruitment letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "2 phone calls",
          "type": "BEHAVIORAL"
        },
        {
          "name": "4 phone calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 584,
      "start_date": "2024-11-08",
      "completion_date": "2027-09-30",
      "has_results": false,
      "last_update_posted_date": "2025-12-09",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06543394"
    },
    {
      "nct_id": "NCT01238172",
      "title": "Diet in Altering Disease Progression in Patients With Prostate Cancer on Active Surveillance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Prostate Cancer"
      ],
      "interventions": [
        {
          "name": "dietary education and counseling",
          "type": "OTHER"
        },
        {
          "name": "prostate cancer foundation booklet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Alliance for Clinical Trials in Oncology",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "80 Years",
        "sex": "MALE",
        "summary": "50 Years to 80 Years · Male only"
      },
      "enrollment_count": 478,
      "start_date": "2011-01",
      "completion_date": "2019-01-15",
      "has_results": true,
      "last_update_posted_date": "2023-03-21",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 180,
      "location_summary": "Fairbanks, Alaska • Scottsdale, Arizona • Bellflower, California + 129 more",
      "locations": [
        {
          "city": "Fairbanks",
          "state": "Alaska"
        },
        {
          "city": "Scottsdale",
          "state": "Arizona"
        },
        {
          "city": "Bellflower",
          "state": "California"
        },
        {
          "city": "Greenbrae",
          "state": "California"
        },
        {
          "city": "La Jolla",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01238172"
    },
    {
      "nct_id": "NCT03122184",
      "title": "Positive Psychology for Acute Coronary Syndrome Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "ACS - Acute Coronary Syndrome"
      ],
      "interventions": [
        {
          "name": "Positive Psychology + Motivational Interviewing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Motivational Interviewing Health Education",
          "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": 69,
      "start_date": "2017-05-01",
      "completion_date": "2018-11-26",
      "has_results": true,
      "last_update_posted_date": "2020-05-14",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03122184"
    },
    {
      "nct_id": "NCT04217174",
      "title": "An Avatar-based Mobile Phone Intervention to Promote Health in African American MSM",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Medication Adherence",
        "Retention in Care"
      ],
      "interventions": [
        {
          "name": "My Personal Health Guide",
          "type": "BEHAVIORAL"
        },
        {
          "name": "My Personal Food Guide",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "34 Years",
        "sex": "MALE",
        "summary": "18 Years to 34 Years · Male only"
      },
      "enrollment_count": 315,
      "start_date": "2020-03-04",
      "completion_date": "2024-11-30",
      "has_results": false,
      "last_update_posted_date": "2026-01-26",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04217174"
    },
    {
      "nct_id": "NCT01152359",
      "title": "Considering Patient Diet Preferences to Optimize Weight Loss",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity"
      ],
      "interventions": [
        {
          "name": "Choice",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "VA Office of Research and Development",
      "sponsor_class": "FED",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": "74 Years",
        "sex": "ALL",
        "summary": "Up to 74 Years"
      },
      "enrollment_count": 207,
      "start_date": "2011-05",
      "completion_date": "2013-08",
      "has_results": true,
      "last_update_posted_date": "2019-04-12",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01152359"
    },
    {
      "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": "2026-10-13T06:05:17.571Z",
      "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": "NCT00735800",
      "title": "Telephone Support for Dementia Caregivers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Dementia"
      ],
      "interventions": [
        {
          "name": "Family Intervention:Telephone Tracking Support- Caregiver",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Telephone Support",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Rhode Island Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "90 Years",
        "sex": "ALL",
        "summary": "50 Years to 90 Years"
      },
      "enrollment_count": 250,
      "start_date": "2008-02",
      "completion_date": "2013-05",
      "has_results": false,
      "last_update_posted_date": "2015-05-05",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00735800"
    },
    {
      "nct_id": "NCT00580398",
      "title": "Smoking Cessation Intervention for Thoracic Patients",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Smoking cessation counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "varenicline",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "Massachusetts General Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 49,
      "start_date": "2008-01",
      "completion_date": "2012-04",
      "has_results": true,
      "last_update_posted_date": "2018-10-12",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00580398"
    },
    {
      "nct_id": "NCT00386256",
      "title": "Home Telerehabilitation for Deconditioned Older Adults",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Osteoarthritis"
      ],
      "interventions": [
        {
          "name": "Health Buddy, Home telehealth technology",
          "type": "DEVICE"
        },
        {
          "name": "Telephone counseling",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "60 Years and older"
      },
      "enrollment_count": 38,
      "start_date": "2006-10",
      "completion_date": "2008-06",
      "has_results": true,
      "last_update_posted_date": "2014-08-15",
      "last_synced_at": "2026-10-13T06:05:17.571Z",
      "location_count": 1,
      "location_summary": "West Los Angeles, California",
      "locations": [
        {
          "city": "West Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00386256"
    }
  ]
}