{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Appointment+Reminder+Message",
    "query": {
      "intervention": "Appointment Reminder Message"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 64,
    "total_pages": 7,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Appointment+Reminder+Message&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-09T22:44:30.518Z",
  "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": "NCT07549139",
      "title": "Overcoming Racial Disparities in Screening Mammography",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Breast Cancer",
        "Cancer of the Breast"
      ],
      "interventions": [
        {
          "name": "Appointment mail reminder",
          "type": "OTHER"
        },
        {
          "name": "Telephone counseling",
          "type": "OTHER"
        },
        {
          "name": "Digital navigation video",
          "type": "OTHER"
        },
        {
          "name": "Automated phone call",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": null,
        "sex": "FEMALE",
        "summary": "40 Years and older · Female only"
      },
      "enrollment_count": 176,
      "start_date": "2026-10-31",
      "completion_date": "2028-04-30",
      "has_results": false,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07549139"
    },
    {
      "nct_id": "NCT05783297",
      "title": "Midwest TXTXT Scale up of an Evidence-Based Intervention to Promote HIV Medication Adherence",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV Infections"
      ],
      "interventions": [
        {
          "name": "Treatment Text (TXTXT)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard of Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Amy K. Johnson, PhD, MSW",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "35 Years",
        "sex": "ALL",
        "summary": "16 Years to 35 Years"
      },
      "enrollment_count": 210,
      "start_date": "2023-04-17",
      "completion_date": "2025-08-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 12,
      "location_summary": "Fort Lauderdale, Florida • Chicago, Illinois • Indianapolis, Indiana + 7 more",
      "locations": [
        {
          "city": "Fort Lauderdale",
          "state": "Florida"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Chicago",
          "state": "Illinois"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        },
        {
          "city": "Indianapolis",
          "state": "Indiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05783297"
    },
    {
      "nct_id": "NCT01577979",
      "title": "Adolescent Vaccination in the Medical Home: Established and Innovative Strategies",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Immunization Rate"
      ],
      "interventions": [
        {
          "name": "Text Message Reminder/Recall",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Parent Preference",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "11 Years to 17 Years"
      },
      "enrollment_count": 34581,
      "start_date": "2012-08",
      "completion_date": "2014-09",
      "has_results": false,
      "last_update_posted_date": "2015-02-26",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01577979"
    },
    {
      "nct_id": "NCT05525494",
      "title": "Patient Portal Flu Vaccine Reminders (5)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Respiratory Tract Infections"
      ],
      "interventions": [
        {
          "name": "Text Fixed R/R Messages with Direct Appointment Schedule Link",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Text Pre-Appointment Reminder",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Portal Pre-Commitment Prompt with Tailored R/R Messages with Direct Appointment Schedule Link",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Portal Fixed R/R Messages with Direct Appointment Schedule Link",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Portal Pre-Appointment Reminder",
          "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": 262085,
      "start_date": "2022-09-07",
      "completion_date": "2023-04-01",
      "has_results": true,
      "last_update_posted_date": "2024-08-07",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05525494"
    },
    {
      "nct_id": "NCT01276184",
      "title": "Effectiveness of SMS (Short Message Service) Text Messaging in Increasing Adherence to Gardasil",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HPV Vaccines"
      ],
      "interventions": [
        {
          "name": "SMS Text Message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Maryland, Baltimore",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "26 Years",
        "sex": "FEMALE",
        "summary": "12 Years to 26 Years · Female only"
      },
      "enrollment_count": 22,
      "start_date": "2011-01",
      "completion_date": "2016-06-15",
      "has_results": true,
      "last_update_posted_date": "2021-07-14",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 2,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        },
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01276184"
    },
    {
      "nct_id": "NCT04565353",
      "title": "Testing Multiple Behavioral Science Strategies to Increase Flu-Shot Rates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza, Human"
      ],
      "interventions": [
        {
          "name": "Flu shot text messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 74811,
      "start_date": "2020-09-20",
      "completion_date": "2021-03-31",
      "has_results": true,
      "last_update_posted_date": "2022-02-01",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 2,
      "location_summary": "Danville, Pennsylvania • Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        },
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04565353"
    },
    {
      "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": "2026-09-09T22:44:30.518Z",
      "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": "NCT01390363",
      "title": "Study of Adolescent Immunization Recall Systems",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Immunization",
        "Reminder Systems"
      ],
      "interventions": [
        {
          "name": "Parent Only Phone Call",
          "type": "OTHER"
        },
        {
          "name": "Parent and Adolescent Phone Call",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "13 Years",
        "maximum_age": "17 Years",
        "sex": "FEMALE",
        "summary": "13 Years to 17 Years · Female only"
      },
      "enrollment_count": 420,
      "start_date": "2010-05-01",
      "completion_date": "2011-07-31",
      "has_results": false,
      "last_update_posted_date": "2017-04-13",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01390363"
    },
    {
      "nct_id": "NCT07432555",
      "title": "Testing a Mobile Health Application to Improve HIV Prevention and Substance Use Treatment Among Women Involved in the Carceral System",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Substance Abuse",
        "HIV"
      ],
      "interventions": [
        {
          "name": "Tool to provide re-entry support and improve linkage to healthcare and social services",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Temple University",
      "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": 74,
      "start_date": "2026-08-01",
      "completion_date": "2026-08-30",
      "has_results": false,
      "last_update_posted_date": "2026-05-13",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07432555"
    },
    {
      "nct_id": "NCT03134833",
      "title": "Engaging Seronegative Youth to Optimize HIV Prevention Continuum",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HIV",
        "Mental Health",
        "Substance Use",
        "STI"
      ],
      "interventions": [
        {
          "name": "Automated Messaging & Monitoring",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Peer Support",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Coaching",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "24 Years",
        "sex": "ALL",
        "summary": "12 Years to 24 Years"
      },
      "enrollment_count": 1478,
      "start_date": "2017-05-06",
      "completion_date": "2022-11-30",
      "has_results": false,
      "last_update_posted_date": "2022-12-05",
      "last_synced_at": "2026-09-09T22:44:30.518Z",
      "location_count": 2,
      "location_summary": "Los Angeles, California • New Orleans, Louisiana",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "New Orleans",
          "state": "Louisiana"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03134833"
    }
  ]
}