{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=4+phone+calls",
    "query": {
      "intervention": "4 phone calls"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 410,
    "total_pages": 41,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=4+phone+calls&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-16T00:53:22.705Z",
  "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": "NCT01537874",
      "title": "MassCONECT (Massachusetts Community Networks to Eliminate Cancer Disparities Through Education) 4 Kids: Promoting Smoke-free Homes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Tobacco Smoking Behavior"
      ],
      "interventions": [
        {
          "name": "Motivational Interview",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual best practices",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Harvard School of Public Health (HSPH)",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "17 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "17 Years and older"
      },
      "enrollment_count": 138,
      "start_date": "2010-05",
      "completion_date": "2013-04",
      "has_results": false,
      "last_update_posted_date": "2014-05-20",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 3,
      "location_summary": "Boston, Massachusetts • Lawrence, Massachusetts • Worcester, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Lawrence",
          "state": "Massachusetts"
        },
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01537874"
    },
    {
      "nct_id": "NCT00760552",
      "title": "Trial of Low and High Intensity Strategies to Maintain BP Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "High Intensity Intervention",
          "type": "OTHER"
        },
        {
          "name": "Low Intensity Intervention",
          "type": "OTHER"
        },
        {
          "name": "All- 6 month pharmacist intervention",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "US Department of Veterans Affairs",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 249,
      "start_date": "2009-11",
      "completion_date": "2013-12",
      "has_results": true,
      "last_update_posted_date": "2015-04-27",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00760552"
    },
    {
      "nct_id": "NCT05603923",
      "title": "Study of a PST-Trained Voice-Enabled Artificial Intelligence Counselor(SPEAC) for Adults With Emotional Distress (Phase 2)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression",
        "Anxiety"
      ],
      "interventions": [
        {
          "name": "Lumen Coached PST Intervention.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Human Coached PST Intervention.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Optional (delayed) Lumen Coached PST (Waitlist control).",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Illinois at Chicago",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 200,
      "start_date": "2023-01-23",
      "completion_date": "2025-04-15",
      "has_results": false,
      "last_update_posted_date": "2026-01-21",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 2,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05603923"
    },
    {
      "nct_id": "NCT04302727",
      "title": "Delicious Eating for Life in Southern Homes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Weight Loss",
        "Diet, Healthy",
        "Cardiovascular Risk Factor"
      ],
      "interventions": [
        {
          "name": "Med-South Weight Loss Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "WW",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "18 Years to 75 Years"
      },
      "enrollment_count": 360,
      "start_date": "2020-07-06",
      "completion_date": "2024-06-16",
      "has_results": true,
      "last_update_posted_date": "2025-11-03",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04302727"
    },
    {
      "nct_id": "NCT01406028",
      "title": "Does Emotional Support Decrease In Vitro Fertilization Stress?",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "In Vitro Fertilization",
        "Psychological Stress"
      ],
      "interventions": [
        {
          "name": "Phone calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 45 Years · Female only"
      },
      "enrollment_count": 131,
      "start_date": "2009-09",
      "completion_date": "2010-06",
      "has_results": false,
      "last_update_posted_date": "2011-07-29",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01406028"
    },
    {
      "nct_id": "NCT01332032",
      "title": "Promoting Breast Cancer Screening in Non-adherent Women",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Breast Cancer"
      ],
      "interventions": [
        {
          "name": "Reminder Letter",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reminder Call",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Counselor Call",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "84 Years",
        "sex": "FEMALE",
        "summary": "40 Years to 84 Years · Female only"
      },
      "enrollment_count": 36348,
      "start_date": "2009-07",
      "completion_date": "2015-05",
      "has_results": false,
      "last_update_posted_date": "2015-06-01",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01332032"
    },
    {
      "nct_id": "NCT04293055",
      "title": "Phone Coaching for Weight Loss Maintenance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Weight Loss"
      ],
      "interventions": [
        {
          "name": "Maintenance program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Phone coaching",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "The Miriam Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "72 Years",
        "sex": "ALL",
        "summary": "18 Years to 72 Years"
      },
      "enrollment_count": 77,
      "start_date": "2020-03-04",
      "completion_date": "2023-08-23",
      "has_results": true,
      "last_update_posted_date": "2024-12-31",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04293055"
    },
    {
      "nct_id": "NCT07519200",
      "title": "Sexual Health and Rehabilitation for Women With Metastatic Breast Cancer (SHARE-MC): An Educational Intervention",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Metastatic Breast Cancer"
      ],
      "interventions": [
        {
          "name": "SHARE-MC",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Informational Booklet",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Dana-Farber Cancer Institute",
      "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": 96,
      "start_date": "2026-09-18",
      "completion_date": "2028-12-31",
      "has_results": false,
      "last_update_posted_date": "2026-04-09",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07519200"
    },
    {
      "nct_id": "NCT06596902",
      "title": "Promoting Physical Activity and Fitness Among Underserved Latino Families Living in U.S.-Mexico Border Regions",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity Prevention",
        "Heart Disease"
      ],
      "interventions": [
        {
          "name": "Physical Activity",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Years and older"
      },
      "enrollment_count": 290,
      "start_date": "2024-06-24",
      "completion_date": "2029-01",
      "has_results": false,
      "last_update_posted_date": "2025-10-06",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06596902"
    },
    {
      "nct_id": "NCT02923401",
      "title": "High-Intensity Interval Training for Women at Heightened Risk for Breast Cancer",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Disorders of Breast"
      ],
      "interventions": [
        {
          "name": "Exercise",
          "type": "OTHER"
        },
        {
          "name": "Questionnaires",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Motivational Session",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Phone Call",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Printed Materials",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "M.D. Anderson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "55 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 55 Years · Female only"
      },
      "enrollment_count": 39,
      "start_date": "2016-09-30",
      "completion_date": "2022-01-05",
      "has_results": false,
      "last_update_posted_date": "2022-02-28",
      "last_synced_at": "2026-09-16T00:53:22.705Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02923401"
    }
  ]
}