{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vaccine+Refusal&page=2",
    "query": {
      "condition": "Vaccine Refusal",
      "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?condition=Vaccine+Refusal&page=1&page_size=10"
  },
  "source": "remote",
  "last_synced_at": "2026-06-11T01:37:10.321Z",
  "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": "NCT05998824",
      "title": "COVID-19 Vaccination Hesitancy in Adults With Sickle Cell Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Sickle Cell Disease",
        "COVID-19 Vaccine",
        "Vaccine Hesitancy"
      ],
      "interventions": [
        {
          "name": "SCD-specific COVID-19 vaccination information (SCVI) video",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Duke University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "100 Years",
        "sex": "ALL",
        "summary": "18 Years to 100 Years"
      },
      "enrollment_count": 33,
      "start_date": "2023-09-19",
      "completion_date": "2024-09-30",
      "has_results": false,
      "last_update_posted_date": "2024-12-24",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05998824"
    },
    {
      "nct_id": "NCT06482450",
      "title": "Improving Vaccine Acceptance Through EHR Integrated Patient- and Provider-Facing Decision Support",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Hesitancy",
        "Vaccine Refusal"
      ],
      "interventions": [
        {
          "name": "LetsTalkShots (patient-facing CDS)",
          "type": "OTHER"
        },
        {
          "name": "LetsTalkShots (provider-facing CDS)",
          "type": "OTHER"
        },
        {
          "name": "Appointment Reminder Message",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Johns Hopkins Bloomberg School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 1200,
      "start_date": "2025-06-11",
      "completion_date": "2026-07",
      "has_results": false,
      "last_update_posted_date": "2026-05-14",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "Atlanta, Georgia",
      "locations": [
        {
          "city": "Atlanta",
          "state": "Georgia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06482450"
    },
    {
      "nct_id": "NCT06698497",
      "title": "Boosting COVID-19 Vaccination Uptake Using Wastewater Surveillance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Uptake"
      ],
      "interventions": [
        {
          "name": "Communication Campaign",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Syracuse University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 40,
      "start_date": "2024-09-13",
      "completion_date": "2025-07-10",
      "has_results": false,
      "last_update_posted_date": "2025-09-15",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06698497"
    },
    {
      "nct_id": "NCT05419232",
      "title": "COVID-19 Vaccine Uptake Trial",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccination Refusal",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Short Message Service (SMS) + Website Link Strategy",
          "type": "OTHER"
        },
        {
          "name": "Phone Call with Peer Strategy",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Washington University School of Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 262,
      "start_date": "2022-07-15",
      "completion_date": "2024-05-31",
      "has_results": true,
      "last_update_posted_date": "2025-04-10",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 8,
      "location_summary": "Hazelwood, Missouri • Jennings, Missouri • Saint Ann, Missouri + 2 more",
      "locations": [
        {
          "city": "Hazelwood",
          "state": "Missouri"
        },
        {
          "city": "Jennings",
          "state": "Missouri"
        },
        {
          "city": "Saint Ann",
          "state": "Missouri"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        },
        {
          "city": "St Louis",
          "state": "Missouri"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05419232"
    },
    {
      "nct_id": "NCT05722652",
      "title": "A Multicomponent Clinic-based Intervention to Promote COVID-19 Vaccine Intention and Uptake Among Diverse Youth and Adolescents",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19 Vaccination"
      ],
      "interventions": [
        {
          "name": "CONFIDENCE",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Massachusetts, Worcester",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 667,
      "start_date": "2023-03-27",
      "completion_date": "2024-10-31",
      "has_results": false,
      "last_update_posted_date": "2025-01-14",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "Worcester, Massachusetts",
      "locations": [
        {
          "city": "Worcester",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05722652"
    },
    {
      "nct_id": "NCT06784960",
      "title": "Communication Strategies to Increase HPV Vaccination Intention",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Papilloma Viral Infection",
        "Vaccine Hesitancy",
        "Communication"
      ],
      "interventions": [
        {
          "name": "Messages",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Abramson Cancer Center at Penn Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "45 Years",
        "sex": "ALL",
        "summary": "18 Years to 45 Years"
      },
      "enrollment_count": 5337,
      "start_date": "2025-02-06",
      "completion_date": "2025-05-01",
      "has_results": false,
      "last_update_posted_date": "2026-06-04",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06784960"
    },
    {
      "nct_id": "NCT06119854",
      "title": "Brief Digital Intervention to Increase COVID-19 Vaccination Among Individuals With Anxiety or Depression",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Misinformation",
        "Vaccine Hesitancy",
        "Anxiety",
        "Depression",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Attitudinal inoculation",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Cognitive-behavioral therapy-informed intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Conventional public health messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "City University of New York, School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1419,
      "start_date": "2024-04-15",
      "completion_date": "2024-11-15",
      "has_results": true,
      "last_update_posted_date": "2025-09-11",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06119854"
    },
    {
      "nct_id": "NCT05537441",
      "title": "Precision Vaccine Promotion in Underserved Populations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza",
        "Vaccine Hesitancy"
      ],
      "interventions": [
        {
          "name": "Text messaging",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Southern California",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Months",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "6 Months and older"
      },
      "enrollment_count": 228831,
      "start_date": "2022-09-22",
      "completion_date": "2023-06-01",
      "has_results": true,
      "last_update_posted_date": "2024-10-01",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "Los Angeles, California",
      "locations": [
        {
          "city": "Los Angeles",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05537441"
    },
    {
      "nct_id": "NCT06650462",
      "title": "Evaluating a Community-Led COVID-19 Testing Intervention to Address Mistrust - Study 1",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19",
        "Trust"
      ],
      "interventions": [
        {
          "name": "Community-led discussion",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Old Dominion University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 57,
      "start_date": "2024-07-02",
      "completion_date": "2025-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-02-27",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 1,
      "location_summary": "Norfolk, Virginia",
      "locations": [
        {
          "city": "Norfolk",
          "state": "Virginia"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06650462"
    },
    {
      "nct_id": "NCT01385501",
      "title": "Educational Intervention to Improve Vaccine Acceptance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccine Hesitancy"
      ],
      "interventions": [
        {
          "name": "Video intervention along with educational hand out",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Vanderbilt University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "60 Years",
        "sex": "ALL",
        "summary": "18 Years to 60 Years"
      },
      "enrollment_count": 155,
      "start_date": "2011-06",
      "completion_date": "2014-12",
      "has_results": false,
      "last_update_posted_date": "2015-04-03",
      "last_synced_at": "2026-06-11T01:37:10.321Z",
      "location_count": 2,
      "location_summary": "Franklin, Tennessee • Nashville, Tennessee",
      "locations": [
        {
          "city": "Franklin",
          "state": "Tennessee"
        },
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT01385501"
    }
  ]
}