{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Portal+message+only",
    "query": {
      "intervention": "Portal message only"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 34,
    "total_pages": 4,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Portal+message+only&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-02T11:20:25.114Z",
  "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": "NCT06062264",
      "title": "Patient Portal Flu Vaccine Reminders (RCT 6)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Respiratory Tract Infections"
      ],
      "interventions": [
        {
          "name": "Portal-based Video Message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Portal-based Infographic Message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Months and older"
      },
      "enrollment_count": 22233,
      "start_date": "2023-10-03",
      "completion_date": "2024-04-01",
      "has_results": true,
      "last_update_posted_date": "2025-04-20",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06062264"
    },
    {
      "nct_id": "NCT04533685",
      "title": "Patient Portal Reminder/Recall for Influenza Vaccination in a Health System- UCLA Portal R/R Influenza RCT 3",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Respiratory Tract Infections"
      ],
      "interventions": [
        {
          "name": "Portal Reminders for Influenza Vaccination: Direct scheduling link",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Portal Reminders for Influenza Vaccination: No direct scheduling link",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pre-Commitment Prompt",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pre-Appointment flu vaccine reminders",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "4 Months and older"
      },
      "enrollment_count": 213773,
      "start_date": "2020-09-01",
      "completion_date": "2021-04-01",
      "has_results": true,
      "last_update_posted_date": "2022-10-25",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04533685"
    },
    {
      "nct_id": "NCT07540143",
      "title": "The REACH-OUT Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hypertension",
        "Reproductive Behavior",
        "Primary Health Care",
        "Electronic Health Record"
      ],
      "interventions": [
        {
          "name": "Health literacy-informed patient education materials",
          "type": "OTHER"
        },
        {
          "name": "BP monitor, brief orientation, and portal tools",
          "type": "BEHAVIORAL"
        },
        {
          "name": "The MeDS assessment",
          "type": "OTHER"
        },
        {
          "name": "Patient navigator support",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "44 Years",
        "sex": "FEMALE",
        "summary": "18 Years to 44 Years · Female only"
      },
      "enrollment_count": 350,
      "start_date": "2026-06-16",
      "completion_date": "2030-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-22",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07540143"
    },
    {
      "nct_id": "NCT02731326",
      "title": "iPhone Helping Evaluate Atrial Fibrillation Rhythm Through Technology",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Atrial Fibrillation",
        "Atrial Flutter"
      ],
      "interventions": [
        {
          "name": "AliveCor",
          "type": "DEVICE"
        },
        {
          "name": "Behavioral Altering Messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DEVICE",
        "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": 264,
      "start_date": "2015-03",
      "completion_date": "2020-12-31",
      "has_results": true,
      "last_update_posted_date": "2024-07-03",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02731326"
    },
    {
      "nct_id": "NCT02798224",
      "title": "A Patient Portal Tool, E-assist, for Supporting CRC Screening",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "e-assist: Colon Health",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Healthwise Educational Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "UNC Lineberger Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "75 Years",
        "sex": "ALL",
        "summary": "50 Years to 75 Years"
      },
      "enrollment_count": 1826,
      "start_date": "2017-06-14",
      "completion_date": "2021-07-27",
      "has_results": false,
      "last_update_posted_date": "2022-10-25",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02798224"
    },
    {
      "nct_id": "NCT04998019",
      "title": "PositiveLinks: mHealth for DC Cohort",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV/AIDS"
      ],
      "interventions": [
        {
          "name": "PositiveLinks",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "George Washington University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "16 Years and older"
      },
      "enrollment_count": 682,
      "start_date": "2022-12-12",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2025-08-19",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 13,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04998019"
    },
    {
      "nct_id": "NCT04026867",
      "title": "The DETECT HCV Linkage to Care Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Hepatitis C"
      ],
      "interventions": [
        {
          "name": "Linkage Navigation",
          "type": "OTHER"
        },
        {
          "name": "Clinician Referral",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Denver Health and Hospital Authority",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 309,
      "start_date": "2019-11-20",
      "completion_date": "2024-07-12",
      "has_results": false,
      "last_update_posted_date": "2025-04-24",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04026867"
    },
    {
      "nct_id": "NCT07322367",
      "title": "A Mobile Patient Health Technology Intervention for Improving Lung Cancer Screening Rates in Eligible High Risk Patients",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Lung Cancer"
      ],
      "interventions": [
        {
          "name": "Portal Message with Reminder Text Messages",
          "type": "OTHER"
        },
        {
          "name": "Text Message with Reminder Text Messages",
          "type": "OTHER"
        },
        {
          "name": "Portal message only",
          "type": "OTHER"
        },
        {
          "name": "Usual Care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "50 Years",
        "maximum_age": "77 Years",
        "sex": "ALL",
        "summary": "50 Years to 77 Years"
      },
      "enrollment_count": 27000,
      "start_date": "2026-03-25",
      "completion_date": "2027-01",
      "has_results": false,
      "last_update_posted_date": "2026-03-25",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07322367"
    },
    {
      "nct_id": "NCT05348603",
      "title": "Electronic Health Record Strategies to Promote Diverse Participation in Research",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patient Participation"
      ],
      "interventions": [
        {
          "name": "Traditional Letter",
          "type": "OTHER"
        },
        {
          "name": "Direct to Patient Message",
          "type": "OTHER"
        },
        {
          "name": "Chatbot",
          "type": "OTHER"
        },
        {
          "name": "Banner",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Yale University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 726199,
      "start_date": "2022-09-13",
      "completion_date": "2023-11-14",
      "has_results": false,
      "last_update_posted_date": "2023-12-11",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "New Haven, Connecticut",
      "locations": [
        {
          "city": "New Haven",
          "state": "Connecticut"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05348603"
    },
    {
      "nct_id": "NCT04947150",
      "title": "Optimizing an mHealth Intervention to Change Food Purchasing Behaviors for Cancer Prevention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer"
      ],
      "interventions": [
        {
          "name": "Location-triggered notification",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Reflections on benefits of change",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Coach monitoring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Household support",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Drexel University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 62,
      "start_date": "2021-06-01",
      "completion_date": "2022-03-29",
      "has_results": true,
      "last_update_posted_date": "2023-10-10",
      "last_synced_at": "2026-09-02T11:20:25.114Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04947150"
    }
  ]
}