{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Efficacy+Message&page=13",
    "query": {
      "intervention": "Efficacy Message",
      "page": 13
    },
    "page_size": 10
  },
  "pagination": {
    "page": 13,
    "page_size": 10,
    "total_count": 458,
    "total_pages": 46,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Efficacy+Message&page=14&page_size=10",
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Efficacy+Message&page=12&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-10-24T11:02:17.045Z",
  "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": "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": "2026-10-24T11:02:17.045Z",
      "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": "NCT05764135",
      "title": "SCI-Lynx: A Mobile Platform for Physical Activity Social Support for People With SCI Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Spinal Cord Injuries"
      ],
      "interventions": [
        {
          "name": "SCI-Lynx Mobile Application",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 33,
      "start_date": "2023-06-14",
      "completion_date": "2024-12-01",
      "has_results": false,
      "last_update_posted_date": "2025-11-10",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05764135"
    },
    {
      "nct_id": "NCT03881891",
      "title": "Optimizing Acute Post-Operative Dental Pain Management Using New Health Information Technology",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pain, Postoperative",
        "Complication, Postoperative"
      ],
      "interventions": [
        {
          "name": "Follow-app intervention arm",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1525,
      "start_date": "2020-02-03",
      "completion_date": "2022-06-30",
      "has_results": false,
      "last_update_posted_date": "2022-08-04",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 2,
      "location_summary": "San Francisco, California • Hillsboro, Oregon",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        },
        {
          "city": "Hillsboro",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03881891"
    },
    {
      "nct_id": "NCT05973890",
      "title": "Community-based Communication for Blood Donation in Ghana",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Increase Repeat Blood Donation Attempts Among First-time Donors"
      ],
      "interventions": [
        {
          "name": "WhatsApp",
          "type": "BEHAVIORAL"
        },
        {
          "name": "docudrama",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 882,
      "start_date": "2024-01-15",
      "completion_date": "2026-03-26",
      "has_results": false,
      "last_update_posted_date": "2026-04-14",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05973890"
    },
    {
      "nct_id": "NCT04662593",
      "title": "Koa Family Study--A Community-Based Intervention to Improve Health and Well-Being",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Obesity",
        "Overweight",
        "Diet, Healthy",
        "Social Interaction",
        "Weight Loss"
      ],
      "interventions": [
        {
          "name": "Whole Health Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Davis",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "21 Years",
        "maximum_age": "45 Years",
        "sex": "FEMALE",
        "summary": "21 Years to 45 Years · Female only"
      },
      "enrollment_count": 70,
      "start_date": "2021-01-04",
      "completion_date": "2021-09-23",
      "has_results": false,
      "last_update_posted_date": "2021-10-11",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Sacramento, California",
      "locations": [
        {
          "city": "Sacramento",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04662593"
    },
    {
      "nct_id": "NCT07251192",
      "title": "Social Media Intervention for Risky Drinking",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Drinking Behavior"
      ],
      "interventions": [
        {
          "name": "Social media messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "ALL",
        "summary": "18 Years to 25 Years"
      },
      "enrollment_count": 450,
      "start_date": "2026-08-20",
      "completion_date": "2030-03",
      "has_results": false,
      "last_update_posted_date": "2026-08-14",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07251192"
    },
    {
      "nct_id": "NCT02647814",
      "title": "Salud al Día: Engaging Latino Parents in Pediatric Primary Care",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Primary Health Care"
      ],
      "interventions": [
        {
          "name": "Salud al Día",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 158,
      "start_date": "2016-02",
      "completion_date": "2018-02",
      "has_results": false,
      "last_update_posted_date": "2018-08-16",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02647814"
    },
    {
      "nct_id": "NCT07578376",
      "title": "Empowered Relief® for Cancer Survivors With Chronic Pain",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Chronic Pain Due to Cancer",
        "Pain Catastrophizing"
      ],
      "interventions": [
        {
          "name": "Empowered Relief Course (Zoom)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oklahoma",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "120 Years",
        "sex": "ALL",
        "summary": "18 Years to 120 Years"
      },
      "enrollment_count": 215,
      "start_date": "2026-06",
      "completion_date": "2030-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Tulsa, Oklahoma",
      "locations": [
        {
          "city": "Tulsa",
          "state": "Oklahoma"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07578376"
    },
    {
      "nct_id": "NCT03921840",
      "title": "A Personalized Behavioral Intervention for Older Adults With Musculoskeletal Pain and Sleep Complaints",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sleep",
        "Pain"
      ],
      "interventions": [
        {
          "name": "ELDERFITNESS",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "Johns Hopkins University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "60 Years to 85 Years"
      },
      "enrollment_count": 27,
      "start_date": "2019-07-01",
      "completion_date": "2020-09-10",
      "has_results": true,
      "last_update_posted_date": "2022-11-04",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03921840"
    },
    {
      "nct_id": "NCT02384265",
      "title": "Financial Incentives and Text Messaging to Improve African American Womens' Glycemic Control",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Diabetes Mellitus"
      ],
      "interventions": [
        {
          "name": "IM/SMS + Incentive Condition",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "65 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 65 Years · Female only"
      },
      "enrollment_count": 41,
      "start_date": "2012-06-21",
      "completion_date": "2021-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-04-18",
      "last_synced_at": "2026-10-24T11:02:17.045Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02384265"
    }
  ]
}