{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Vaccine+Messaging&page=2",
    "query": {
      "intervention": "Vaccine Messaging",
      "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=Vaccine+Messaging&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-09-25T00:43:29.235Z",
  "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": "NCT05665543",
      "title": "Increasing HPV Vaccination in Pediatric, Adolescent, and Young Adult (PAYA) Cancer Survivors",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Cancer",
        "HPV Associated Cancer"
      ],
      "interventions": [
        {
          "name": "GLAm app",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Masonic Cancer Center, University of Minnesota",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "26 Years",
        "sex": "ALL",
        "summary": "9 Years to 26 Years"
      },
      "enrollment_count": 162,
      "start_date": "2023-07-24",
      "completion_date": "2026-10",
      "has_results": false,
      "last_update_posted_date": "2026-09-02",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "Minneapolis, Minnesota",
      "locations": [
        {
          "city": "Minneapolis",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05665543"
    },
    {
      "nct_id": "NCT01974050",
      "title": "PregText: Feasibility of Monitoring Influenza Vaccine Safety in Pregnant Women Using Text Messaging",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Pregnancy"
      ],
      "interventions": [
        {
          "name": "Text message surveillance",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Columbia 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": 166,
      "start_date": "2013-11",
      "completion_date": "2015-12",
      "has_results": true,
      "last_update_posted_date": "2018-03-12",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01974050"
    },
    {
      "nct_id": "NCT06640868",
      "title": "Promotion of RSV Immunization Through Multiple Efforts",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Pregnancy",
        "Vaccination"
      ],
      "interventions": [
        {
          "name": "MyChart nurse message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "SMFM video",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Visual aid",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Washington University School of Medicine",
      "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": 50,
      "start_date": "2024-11-04",
      "completion_date": "2025-02-20",
      "has_results": false,
      "last_update_posted_date": "2025-12-08",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06640868"
    },
    {
      "nct_id": "NCT05586178",
      "title": "Information Provision and Consistency Framing to Increase COVID-19 Booster Uptake",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19",
        "Vaccines"
      ],
      "interventions": [
        {
          "name": "Reminder that facilitates action",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Consistency framing",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Information provision about the uniqueness of the bivalent booster",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Information provision about bivalent booster eligibility",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Information provision about the severity of COVID-19 symptoms",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of California, Los Angeles",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 177720,
      "start_date": "2022-10-18",
      "completion_date": "2023-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-12-05",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05586178"
    },
    {
      "nct_id": "NCT02994108",
      "title": "txt2protect: Using Text Messaging to Increase HPV Vaccination Among Young Sexual Minority Men",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papillomavirus"
      ],
      "interventions": [
        {
          "name": "txt2protect",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Sexual Health Control",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Northwestern University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "25 Years",
        "sex": "MALE",
        "summary": "18 Years to 25 Years · Male only"
      },
      "enrollment_count": 150,
      "start_date": "2018-01-03",
      "completion_date": "2019-06-30",
      "has_results": true,
      "last_update_posted_date": "2020-07-20",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02994108"
    },
    {
      "nct_id": "NCT05422898",
      "title": "Discussing COVID-19 Vaccines in Private Facebook Groups",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Gist messages on COVID-19 vaccination",
          "type": "BEHAVIORAL"
        },
        {
          "name": "COVID-19 vaccine information",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "George Washington University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 508,
      "start_date": "2022-01-17",
      "completion_date": "2022-04-04",
      "has_results": false,
      "last_update_posted_date": "2022-06-21",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "Washington D.C., District of Columbia",
      "locations": [
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05422898"
    },
    {
      "nct_id": "NCT01908517",
      "title": "Human Papilloma Viruses (HPV) Vaccine Adherence Community Clinic Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Patient Compliance"
      ],
      "interventions": [
        {
          "name": "HPV Vaccine Electronic Reminders",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "East Carolina University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "9 Years to 17 Years"
      },
      "enrollment_count": 522,
      "start_date": "2013-08",
      "completion_date": "2016-05",
      "has_results": false,
      "last_update_posted_date": "2016-05-25",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 2,
      "location_summary": "Greenville, North Carolina • Snow Hill, North Carolina",
      "locations": [
        {
          "city": "Greenville",
          "state": "North Carolina"
        },
        {
          "city": "Snow Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01908517"
    },
    {
      "nct_id": "NCT06926062",
      "title": "Interpersonal Communication Training and Vaccination Workflow Training Alone and in Combination to Improve Communication and Recommendations About HPV Vaccination in Pharmacies, IMPACT HPV Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papillomavirus-Related Carcinoma"
      ],
      "interventions": [
        {
          "name": "Best Practice",
          "type": "OTHER"
        },
        {
          "name": "Educational Intervention",
          "type": "OTHER"
        },
        {
          "name": "Interview",
          "type": "OTHER"
        },
        {
          "name": "Questionnaire Administration",
          "type": "OTHER"
        },
        {
          "name": "Training and Education",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Vaccination",
          "type": "PROCEDURE"
        }
      ],
      "intervention_types": [
        "OTHER",
        "BEHAVIORAL",
        "PROCEDURE"
      ],
      "sponsor": "Fred Hutchinson Cancer Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1900,
      "start_date": "2026-10-15",
      "completion_date": "2027-12-01",
      "has_results": false,
      "last_update_posted_date": "2026-09-17",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 2,
      "location_summary": "University Park, Pennsylvania • Seattle, Washington",
      "locations": [
        {
          "city": "University Park",
          "state": "Pennsylvania"
        },
        {
          "city": "Seattle",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06926062"
    },
    {
      "nct_id": "NCT02266277",
      "title": "System Alignment for VaccinE Delivery (SAVED): Improving Rates of Influenza and Pneumococcal Vaccination Through Patient Outreach, Improved Medical Record Accuracy and Targeted Physician Alerts",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Infections, Pneumococcal"
      ],
      "interventions": [
        {
          "name": "Arm 1: E-portal message with IVR call",
          "type": "OTHER"
        },
        {
          "name": "Arm 2: E-portal message with no IVR call",
          "type": "OTHER"
        },
        {
          "name": "Arm 3: No e-portal message with IVR call",
          "type": "OTHER"
        },
        {
          "name": "Arm 5: IVR call",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 30000,
      "start_date": "2014-11",
      "completion_date": "2016-12",
      "has_results": true,
      "last_update_posted_date": "2017-05-31",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02266277"
    },
    {
      "nct_id": "NCT05006833",
      "title": "Text and Talk: A Multi-level Intervention to Increase Provider HPV Vaccine Recommendation Effectiveness",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "HPV"
      ],
      "interventions": [
        {
          "name": "Brief Provider Training - Bundled Approach",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Brief Provider Training - Benefits Approach",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Parent Interactive Text Message - Bundled Approach",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Parent Interactive Text Message - Benefits Approach",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Florida",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "10 Years and older"
      },
      "enrollment_count": 8043,
      "start_date": "2021-11-18",
      "completion_date": "2026-02-16",
      "has_results": true,
      "last_update_posted_date": "2026-08-04",
      "last_synced_at": "2026-09-25T00:43:29.235Z",
      "location_count": 1,
      "location_summary": "Gainesville, Florida",
      "locations": [
        {
          "city": "Gainesville",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05006833"
    }
  ]
}