{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vaccine+Administration+Rates",
    "query": {
      "condition": "Vaccine Administration Rates"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 5,
    "total_pages": 1,
    "next_page_url": null,
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-24T01:37:49.185Z",
  "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": "NCT03123419",
      "title": "Gardasil Administration",
      "overall_status": "WITHDRAWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Administration Rates"
      ],
      "interventions": [
        {
          "name": "Appointment reminders",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "St. Louis University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "9 Years",
        "maximum_age": "26 Years",
        "sex": "FEMALE",
        "summary": "9 Years to 26 Years · Female only"
      },
      "enrollment_count": 0,
      "start_date": "2018-02-01",
      "completion_date": "2019-04-01",
      "has_results": false,
      "last_update_posted_date": "2018-03-07",
      "last_synced_at": "2026-09-24T01:37:49.185Z",
      "location_count": 1,
      "location_summary": "St Louis, Missouri",
      "locations": [
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03123419"
    },
    {
      "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": "2026-09-24T01:37:49.185Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT02266277"
    },
    {
      "nct_id": "NCT05891626",
      "title": "Group Intervention on Vaccine Confidence",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccination Refusal"
      ],
      "interventions": [
        {
          "name": "Group intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "MultiCare Health System Research Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 429,
      "start_date": "2023-08-02",
      "completion_date": "2024-12-31",
      "has_results": false,
      "last_update_posted_date": "2023-10-10",
      "last_synced_at": "2026-09-24T01:37:49.185Z",
      "location_count": 1,
      "location_summary": "Puyallup, Washington",
      "locations": [
        {
          "city": "Puyallup",
          "state": "Washington"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05891626"
    },
    {
      "nct_id": "NCT03702231",
      "title": "Response to the SHINGRIX Varicella Zoster Virus (VZV) Vaccine in Chronic Lymphocytic Leukemia (CLL) and CLL Treated With Bruton's Tyrosine Kinase Inhibitor (BTK-I)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Safety and Tolerability",
        "Compare SHINGRIX Vaccine Response Rates",
        "Chronic Lymphocytic Leukemia (CLL)",
        "Small Lymphocytic Lymphoma (SLL)"
      ],
      "interventions": [
        {
          "name": "Zoster Vaccine Recombinant, Adjuvanted",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Heart, Lung, and Blood Institute (NHLBI)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "18 Years to 99 Years"
      },
      "enrollment_count": 116,
      "start_date": "2018-12-07",
      "completion_date": "2023-07-12",
      "has_results": true,
      "last_update_posted_date": "2023-08-04",
      "last_synced_at": "2026-09-24T01:37:49.185Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03702231"
    },
    {
      "nct_id": "NCT04568590",
      "title": "Promoting Altruism to Enhance Vaccine Acceptance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Refusal"
      ],
      "interventions": [
        {
          "name": "educational intervention",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Wake Forest University Health Sciences",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 510,
      "start_date": "2020-10-19",
      "completion_date": "2021-10-26",
      "has_results": true,
      "last_update_posted_date": "2024-08-12",
      "last_synced_at": "2026-09-24T01:37:49.185Z",
      "location_count": 1,
      "location_summary": "Winston-Salem, North Carolina",
      "locations": [
        {
          "city": "Winston-Salem",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04568590"
    }
  ]
}