{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Reminder-recall&page=2",
    "query": {
      "intervention": "Reminder-recall",
      "page": 2
    },
    "page_size": 10
  },
  "pagination": {
    "page": 2,
    "page_size": 10,
    "total_count": 10,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Reminder-recall&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T16:10:10.584Z",
  "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": "NCT01770496",
      "title": "Age-Specific Strategies for Immunization Reminders and Recalls",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Childhood Vaccination"
      ],
      "interventions": [
        {
          "name": "Childhood vaccination reminder / recall notification",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "7 Months",
        "maximum_age": "19 Months",
        "sex": "ALL",
        "summary": "7 Months to 19 Months"
      },
      "enrollment_count": 10175,
      "start_date": "2007-10",
      "completion_date": "2010-09",
      "has_results": false,
      "last_update_posted_date": "2013-01-17",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01770496"
    },
    {
      "nct_id": "NCT03294551",
      "title": "HPV Centralized R/R RCT #2 - New York State",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccines"
      ],
      "interventions": [
        {
          "name": "HPV Vaccine Reminder Recall - Autodialer",
          "type": "BEHAVIORAL"
        },
        {
          "name": "HPV Vaccine Reminder Recall - Texting",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "14 Years",
        "sex": "ALL",
        "summary": "11 Years to 14 Years"
      },
      "enrollment_count": 37003,
      "start_date": "2017-10-27",
      "completion_date": "2019-11-05",
      "has_results": false,
      "last_update_posted_date": "2021-05-27",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03294551"
    },
    {
      "nct_id": "NCT01296906",
      "title": "Population Versus Practice-based Interventions to Increase Immunizations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Services Research",
        "Comparative Effectiveness",
        "Immunization"
      ],
      "interventions": [
        {
          "name": "Recall conducted by private practices",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Recall conducted centrally by local health department",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "19 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "19 Months and older"
      },
      "enrollment_count": 31567,
      "start_date": "2010-05",
      "completion_date": "2012-09",
      "has_results": false,
      "last_update_posted_date": "2013-06-21",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Denver, Colorado",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01296906"
    },
    {
      "nct_id": "NCT05229120",
      "title": "Improving Delay Discounting to Decrease Harsh Parenting Among Parents Receiving Substance Use Treatment",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Behavioral Health"
      ],
      "interventions": [
        {
          "name": "Episodic Future Thinking",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Henry Ford Health System",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 38,
      "start_date": "2022-04-07",
      "completion_date": "2023-03-31",
      "has_results": true,
      "last_update_posted_date": "2025-03-14",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Flint, Michigan",
      "locations": [
        {
          "city": "Flint",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05229120"
    },
    {
      "nct_id": "NCT03307642",
      "title": "Evaluation of the School Kids Influenza Prevention Project",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Childhood Influenza Vaccination",
        "School-located Influenza Vaccination"
      ],
      "interventions": [
        {
          "name": "Text message notification",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Rochester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "4 Years",
        "maximum_age": "19 Years",
        "sex": "ALL",
        "summary": "4 Years to 19 Years"
      },
      "enrollment_count": 18540,
      "start_date": "2017-12-04",
      "completion_date": "2017-12-22",
      "has_results": false,
      "last_update_posted_date": "2018-03-12",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Rochester, New York",
      "locations": [
        {
          "city": "Rochester",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03307642"
    },
    {
      "nct_id": "NCT01403649",
      "title": "Collaborative Efforts to Increase Flu Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Collaboration"
      ],
      "interventions": [
        {
          "name": "Private/public collaboration to increase flu vaccination",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Usual care",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": "18 Years",
        "sex": "ALL",
        "summary": "6 Months to 18 Years"
      },
      "enrollment_count": 117175,
      "start_date": "2009-08",
      "completion_date": "2015-03",
      "has_results": false,
      "last_update_posted_date": "2015-06-02",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 27,
      "location_summary": "Aurora, Colorado • Brighton, Colorado • Broomfield, Colorado + 15 more",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Aurora",
          "state": "Colorado"
        },
        {
          "city": "Brighton",
          "state": "Colorado"
        },
        {
          "city": "Broomfield",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01403649"
    },
    {
      "nct_id": "NCT02651883",
      "title": "Effect of Human Papillomavirus Self-Collection on Cervical Cancer Screening in High Risk Women: My Body, My Test 3",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cervical Cancer",
        "Uterine Cervical Neoplasms",
        "Human Papillomavirus"
      ],
      "interventions": [
        {
          "name": "Screening invitation (with education)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Self-collection for HPV testing",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "UNC Lineberger Comprehensive Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "25 Years",
        "maximum_age": "64 Years",
        "sex": "FEMALE",
        "summary": "25 Years to 64 Years · Female only"
      },
      "enrollment_count": 665,
      "start_date": "2016-04",
      "completion_date": "2020-04-10",
      "has_results": false,
      "last_update_posted_date": "2022-12-02",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02651883"
    },
    {
      "nct_id": "NCT02993965",
      "title": "State Immunization Information Systems to Improve HPV Vaccination Rates",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine",
        "Human Papiloma Virus Vaccine",
        "HPV Vaccine",
        "Immunization",
        "Health Registry",
        "Adolescent Health",
        "Reproductive Health",
        "Preventive Health Services"
      ],
      "interventions": [
        {
          "name": "Vaccine Reminder/Recall",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Colorado, Denver",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "11 Years to 17 Years"
      },
      "enrollment_count": 77716,
      "start_date": "2017-02-21",
      "completion_date": "2020-07-31",
      "has_results": false,
      "last_update_posted_date": "2020-08-20",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02993965"
    },
    {
      "nct_id": "NCT06535139",
      "title": "ReMARK: Addressing Disparities in Rural HPV-related Cancer Prevention",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Papillomavirus Vaccines"
      ],
      "interventions": [
        {
          "name": "Brief training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Parent-targeted motivational aids",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Healthcare access",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "8 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "8 Years to 99 Years"
      },
      "enrollment_count": 4630,
      "start_date": "2024-12-09",
      "completion_date": "2027-07-01",
      "has_results": false,
      "last_update_posted_date": "2025-09-09",
      "last_synced_at": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06535139"
    },
    {
      "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": "2026-09-27T16:10:10.584Z",
      "location_count": 1,
      "location_summary": "Aurora, Colorado",
      "locations": [
        {
          "city": "Aurora",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01577979"
    }
  ]
}