{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Messaging&page=23",
    "query": {
      "intervention": "Messaging",
      "page": 23
    },
    "page_size": 10
  },
  "pagination": {
    "page": 23,
    "page_size": 10,
    "total_count": 3122,
    "total_pages": 313,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Messaging&page=24&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Messaging&page=22&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T05:41:12.453Z",
  "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": "NCT04616963",
      "title": "Emtricitabine/Tenofovir Alafenamide Switch Study for Transgender Individuals for HIV Pre-exposure Prophylaxis",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Hiv",
        "Hormone Therapy"
      ],
      "interventions": [
        {
          "name": "Emtricitabine / Tenofovir Disoproxil Oral Tablet 200/300 mg",
          "type": "DRUG"
        },
        {
          "name": "Emtricitabine Tenofovir Alafenamide 200/25 mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Diego",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 64,
      "start_date": "2019-10-24",
      "completion_date": "2024-01-31",
      "has_results": false,
      "last_update_posted_date": "2023-05-06",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04616963"
    },
    {
      "nct_id": "NCT01120704",
      "title": "Evaluation of Treatments to Improve Smoking Cessation Medication Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Smoking",
        "Smoking Cessation",
        "Adherence",
        "Nicotine Dependence",
        "Motivation"
      ],
      "interventions": [
        {
          "name": "Short Term Combination Nicotine Replacement Therapy (patch + gum)",
          "type": "DRUG"
        },
        {
          "name": "Long Term Combination Nicotine Replacement Therapy (patch + gum)",
          "type": "DRUG"
        },
        {
          "name": "Intensive Maintenance Counseling",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive Medication Adherence Counseling (CAM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Electronic Medication Monitoring Device (the Helping Hand) + Feedback",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Automated Adherence Prompting Phone Calls",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "BEHAVIORAL"
      ],
      "sponsor": "University of Wisconsin, Madison",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 544,
      "start_date": "2010-06",
      "completion_date": "2014-05",
      "has_results": true,
      "last_update_posted_date": "2015-12-11",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 1,
      "location_summary": "Madison, Wisconsin",
      "locations": [
        {
          "city": "Madison",
          "state": "Wisconsin"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01120704"
    },
    {
      "nct_id": "NCT03982043",
      "title": "Text2Connect, Component 2 of iCHART (Integrated Care to Help At-Risk Teens)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Depression",
        "Suicidal Ideation"
      ],
      "interventions": [
        {
          "name": "Text2Connect",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pittsburgh",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "26 Years",
        "sex": "ALL",
        "summary": "12 Years to 26 Years"
      },
      "enrollment_count": 47,
      "start_date": "2019-05-28",
      "completion_date": "2020-06-30",
      "has_results": true,
      "last_update_posted_date": "2022-06-03",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 4,
      "location_summary": "McMurray, Pennsylvania • Natrona Heights, Pennsylvania • Pittsburgh, Pennsylvania",
      "locations": [
        {
          "city": "McMurray",
          "state": "Pennsylvania"
        },
        {
          "city": "Natrona Heights",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        },
        {
          "city": "Pittsburgh",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03982043"
    },
    {
      "nct_id": "NCT05571189",
      "title": "Home Rehabilitation After Acute Pulmonary Embolism",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pulmonary Embolism"
      ],
      "interventions": [
        {
          "name": "Daily Activity Text",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control Text",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 32,
      "start_date": "2022-12-19",
      "completion_date": "2025-09-24",
      "has_results": false,
      "last_update_posted_date": "2026-09-18",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05571189"
    },
    {
      "nct_id": "NCT04622150",
      "title": "Effectiveness RCT of Customized Adherence Enhancement",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Bipolar Disorder"
      ],
      "interventions": [
        {
          "name": "Customized Adherence Enhancement (CAE)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Enhanced Treatment as Usual (eTAU)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Case Western Reserve University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "89 Years",
        "sex": "ALL",
        "summary": "18 Years to 89 Years"
      },
      "enrollment_count": 190,
      "start_date": "2022-02-01",
      "completion_date": "2026-05-15",
      "has_results": false,
      "last_update_posted_date": "2026-06-03",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 3,
      "location_summary": "Cleveland, Ohio • Lorain, Ohio",
      "locations": [
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Cleveland",
          "state": "Ohio"
        },
        {
          "city": "Lorain",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04622150"
    },
    {
      "nct_id": "NCT04459728",
      "title": "KickStart30: A 30-Day Nursing Wellness Initiative",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Substance Use"
      ],
      "interventions": [
        {
          "name": "Wellness Element 1: Exercise",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wellness Element 2: Mindfulness",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wellness Element 3 - Sleep Hygiene",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wellness Element 4 - Social Connectedness",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wellness Element 5 - Nutrition",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wellness Element 6 - Wellness Exercises",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Wellness Element 7 - Motivational Messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Texas at Austin",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 48,
      "start_date": "2020-09-01",
      "completion_date": "2022-07-14",
      "has_results": false,
      "last_update_posted_date": "2022-07-18",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 1,
      "location_summary": "Austin, Texas",
      "locations": [
        {
          "city": "Austin",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04459728"
    },
    {
      "nct_id": "NCT03744052",
      "title": "Using Neuroscience to Optimize Digital Health Interventions Across Adulthood",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Healthy"
      ],
      "interventions": [
        {
          "name": "Motivational Messages",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "30 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "30 Years to 80 Years"
      },
      "enrollment_count": 44,
      "start_date": "2019-01-17",
      "completion_date": "2020-05-18",
      "has_results": false,
      "last_update_posted_date": "2021-02-16",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03744052"
    },
    {
      "nct_id": "NCT05968755",
      "title": "Leveraging Chatbot to Improve PrEP in the Southern United States",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Prevention",
        "PrEP Awareness",
        "PrEP Uptake"
      ],
      "interventions": [
        {
          "name": "A chatbot designed to promote PrEP awareness and uptake for Black MSM",
          "type": "DEVICE"
        },
        {
          "name": "General educational messages",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "OTHER"
      ],
      "sponsor": "Yale University",
      "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": 145,
      "start_date": "2026-07-13",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-23",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 4,
      "location_summary": "Miami, Florida • Pembroke Pines, Florida • Atlanta, Georgia + 1 more",
      "locations": [
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Pembroke Pines",
          "state": "Florida"
        },
        {
          "city": "Atlanta",
          "state": "Georgia"
        },
        {
          "city": "Charlotte",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05968755"
    },
    {
      "nct_id": "NCT02044484",
      "title": "HIV Clinic-Based Intervention to Improve ART Adherence and Prevent HIV Transmission",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV"
      ],
      "interventions": [
        {
          "name": "Multi-component intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Centers for Disease Control and Prevention",
      "sponsor_class": "FED",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2794,
      "start_date": "2014-01",
      "completion_date": "2016-10",
      "has_results": false,
      "last_update_posted_date": "2025-03-20",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 6,
      "location_summary": "Birmingham, Alabama • San Diego, California • Miami, Florida + 3 more",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "Miami",
          "state": "Florida"
        },
        {
          "city": "Boston",
          "state": "Massachusetts"
        },
        {
          "city": "Houston",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02044484"
    },
    {
      "nct_id": "NCT07296848",
      "title": "Health Communications for Adults Smoking Nondaily",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Smoking Cessation"
      ],
      "interventions": [
        {
          "name": "Targeted Smoking Messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Bethany Shorey Fennell, PhD",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 320,
      "start_date": "2026-04-17",
      "completion_date": "2027-06",
      "has_results": false,
      "last_update_posted_date": "2026-08-27",
      "last_synced_at": "2026-10-24T05:41:12.453Z",
      "location_count": 1,
      "location_summary": "Lexington, Kentucky",
      "locations": [
        {
          "city": "Lexington",
          "state": "Kentucky"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07296848"
    }
  ]
}