{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Motivational+Messaging",
    "query": {
      "intervention": "Motivational Messaging"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 366,
    "total_pages": 37,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Motivational+Messaging&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-12T18:19:23.859Z",
  "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": "NCT01442285",
      "title": "The Mental Health and Dynamic Referral for Oncology Protocol (MHADRO)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer",
        "Distress"
      ],
      "interventions": [
        {
          "name": "personalized, motivational messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2011-04",
      "completion_date": "2015-04",
      "has_results": false,
      "last_update_posted_date": "2015-04-09",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01442285"
    },
    {
      "nct_id": "NCT06156228",
      "title": "Multilevel Intervention of COVID-19 Vaccine Uptake Among Latinos",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Hesitancy"
      ],
      "interventions": [
        {
          "name": "Multilevel Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "San Diego State University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 238,
      "start_date": "2024-03-06",
      "completion_date": "2025-04-01",
      "has_results": false,
      "last_update_posted_date": "2025-07-04",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 2,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06156228"
    },
    {
      "nct_id": "NCT01410669",
      "title": "Motivational Interviewing Intervention for Intimate Partner Violence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Self-efficacy"
      ],
      "interventions": [
        {
          "name": "Motivational interviewing (MI)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Iowa",
      "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": 305,
      "start_date": "2007-12",
      "completion_date": "2010-12",
      "has_results": false,
      "last_update_posted_date": "2011-08-05",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 1,
      "location_summary": "Iowa City, Iowa",
      "locations": [
        {
          "city": "Iowa City",
          "state": "Iowa"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01410669"
    },
    {
      "nct_id": "NCT03872856",
      "title": "Blood Pressure-Improving Control Among Alaska Native People\" (BP-ICAN)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension"
      ],
      "interventions": [
        {
          "name": "BP-ICAN",
          "type": "DEVICE"
        }
      ],
      "intervention_types": [
        "DEVICE"
      ],
      "sponsor": "Southcentral Foundation",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "MALE",
        "summary": "18 Years and older · Male only"
      },
      "enrollment_count": 164,
      "start_date": "2019-02-19",
      "completion_date": "2023-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-08-01",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 2,
      "location_summary": "Anchorage, Alaska • Wasilla, Alaska",
      "locations": [
        {
          "city": "Anchorage",
          "state": "Alaska"
        },
        {
          "city": "Wasilla",
          "state": "Alaska"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03872856"
    },
    {
      "nct_id": "NCT04046341",
      "title": "Implementing Behavioral Sleep Intervention in Urban Primary Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep Disturbance",
        "Sleep Deprivation",
        "Sleep"
      ],
      "interventions": [
        {
          "name": "Sleep Well!",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Children's Hospital of Philadelphia",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Months",
        "maximum_age": "5 Years",
        "sex": "ALL",
        "summary": "12 Months to 5 Years"
      },
      "enrollment_count": 15,
      "start_date": "2019-10-14",
      "completion_date": "2020-07-03",
      "has_results": true,
      "last_update_posted_date": "2021-10-08",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04046341"
    },
    {
      "nct_id": "NCT00694018",
      "title": "Veterans Walk to Beat Back Pain",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Back Pain"
      ],
      "interventions": [
        {
          "name": "Education and standard care",
          "type": "OTHER"
        },
        {
          "name": "Internet mediated enhanced pedometer intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "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": 229,
      "start_date": "2009-05",
      "completion_date": "2012-03",
      "has_results": true,
      "last_update_posted_date": "2015-04-27",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00694018"
    },
    {
      "nct_id": "NCT01989065",
      "title": "Healthy Lifestyles Program for You (HLP4U): Augmenting Childhood Obesity Treatment.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pediatric Obesity"
      ],
      "interventions": [
        {
          "name": "Lifestyle counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text Messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": "12 Years",
        "sex": "ALL",
        "summary": "5 Years to 12 Years"
      },
      "enrollment_count": 101,
      "start_date": "2014-09",
      "completion_date": "2015-10",
      "has_results": false,
      "last_update_posted_date": "2015-12-03",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01989065"
    },
    {
      "nct_id": "NCT04839198",
      "title": "Using Machine Learning to Develop Just-in-Time Adaptive Interventions for Smoking Cessation",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Android Wear smartwatch",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Adaptive Treatment",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Nicotine Patch",
          "type": "DRUG"
        },
        {
          "name": "interviewing-based counseling",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "DRUG"
      ],
      "sponsor": "The University of Texas Health Science Center, Houston",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 60,
      "start_date": "2024-02-06",
      "completion_date": "2024-11-22",
      "has_results": false,
      "last_update_posted_date": "2025-03-28",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 1,
      "location_summary": "Houston, Texas",
      "locations": [
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04839198"
    },
    {
      "nct_id": "NCT04546971",
      "title": "Using Telehealth to Address Alcohol Misuse in HIV Care",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Alcohol Drinking",
        "HIV Viremia"
      ],
      "interventions": [
        {
          "name": "Brief Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Telehealth Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brown University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 600,
      "start_date": "2021-06-22",
      "completion_date": "2026-05-15",
      "has_results": false,
      "last_update_posted_date": "2025-08-18",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 1,
      "location_summary": "Providence, Rhode Island",
      "locations": [
        {
          "city": "Providence",
          "state": "Rhode Island"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04546971"
    },
    {
      "nct_id": "NCT02791971",
      "title": "The Share Health Study: Teen Social Connections and Health",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Contraception"
      ],
      "interventions": [
        {
          "name": "SpeakOut",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Alcohol Control Intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "15 Years",
        "maximum_age": "19 Years",
        "sex": "FEMALE",
        "summary": "15 Years to 19 Years · Female only"
      },
      "enrollment_count": 207,
      "start_date": "2016-11-15",
      "completion_date": "2018-06-21",
      "has_results": false,
      "last_update_posted_date": "2018-11-27",
      "last_synced_at": "2026-09-12T18:19:23.859Z",
      "location_count": 2,
      "location_summary": "Davis, California • Los Angeles, California",
      "locations": [
        {
          "city": "Davis",
          "state": "California"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02791971"
    }
  ]
}