{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vaccination+Behavior",
    "query": {
      "condition": "Vaccination Behavior"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 154,
    "total_pages": 16,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Vaccination+Behavior&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-05-22T08:09:30.147Z",
  "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": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Durham, North Carolina",
      "locations": [
        {
          "city": "Durham",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05998824"
    },
    {
      "nct_id": "NCT04590066",
      "title": "Testing Multiple Behavioral Science Strategies to Increase Flu-Shot Rates at a Large Retail Pharmacy",
      "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": 734383,
      "start_date": "2020-09-25",
      "completion_date": "2020-12-31",
      "has_results": false,
      "last_update_posted_date": "2021-02-01",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04590066"
    },
    {
      "nct_id": "NCT05492786",
      "title": "High-risk Influenza Vaccine Alert",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Alert",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Salient alert features",
          "type": "BEHAVIORAL"
        },
        {
          "name": "High-risk Text",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Risk factors",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 80452,
      "start_date": "2022-09-01",
      "completion_date": "2023-04-01",
      "has_results": true,
      "last_update_posted_date": "2024-12-30",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05492786"
    },
    {
      "nct_id": "NCT00680147",
      "title": "Human Papillomavirus (HPV) Vaccination Acceptance by African-American Parents: Identifying Psychosocial Barriers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "HPV"
      ],
      "interventions": [
        {
          "name": "brief informational intervention to promote HPV vaccine acceptance",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Syracuse University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "11 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "11 Years and older"
      },
      "enrollment_count": 614,
      "start_date": "2008-07",
      "completion_date": "2012-02",
      "has_results": false,
      "last_update_posted_date": "2015-05-21",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Syracuse, New York",
      "locations": [
        {
          "city": "Syracuse",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00680147"
    },
    {
      "nct_id": "NCT05022472",
      "title": "Project 2VIDA! COVID-19 Vaccine Intervention Delivery for Adults in Southern California",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Vaccine Refusal",
        "Covid19"
      ],
      "interventions": [
        {
          "name": "COVID-19 Individual Awareness and Education.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "COVID-19 Community Outreach & Health Promotion.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "COVID-19 Individual Health Education & Linkages to Medical and Supportive Services.",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Pop-up community vaccination sites",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL",
        "BIOLOGICAL"
      ],
      "sponsor": "Britt Skaathun",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "16 Years",
        "maximum_age": "99 Years",
        "sex": "ALL",
        "summary": "16 Years to 99 Years"
      },
      "enrollment_count": 1051,
      "start_date": "2021-07-16",
      "completion_date": "2024-03-29",
      "has_results": true,
      "last_update_posted_date": "2025-06-06",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 6,
      "location_summary": "Chula Vista, California • San Diego, California • San Ysidro, California",
      "locations": [
        {
          "city": "Chula Vista",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        },
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05022472"
    },
    {
      "nct_id": "NCT04380623",
      "title": "A Tailored, Health Communication Intervention for HPV Vaccine Hesitant Families",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Human Papilloma Virus",
        "HPV-Related Carcinoma",
        "Vaccine Refusal",
        "Parents",
        "Program, Communication"
      ],
      "interventions": [
        {
          "name": "Mobile Phone-Based Web-Page: HPV vaccine",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Meharry Medical College",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 244,
      "start_date": "2021-02-15",
      "completion_date": "2024-05-30",
      "has_results": false,
      "last_update_posted_date": "2021-09-08",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Nashville, Tennessee",
      "locations": [
        {
          "city": "Nashville",
          "state": "Tennessee"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04380623"
    },
    {
      "nct_id": "NCT04904744",
      "title": "Effect of Varied Outreach Methods on Appointment Scheduling, Appointment Completion, and Receipt of COVID-19 Vaccination",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Care Utilization",
        "Vaccine Preventable Disease"
      ],
      "interventions": [
        {
          "name": "Low tailored message",
          "type": "OTHER"
        },
        {
          "name": "No message",
          "type": "OTHER"
        },
        {
          "name": "Low tailored message plus COVID-19 vaccine message",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "OTHER"
      ],
      "sponsor": "Children's Hospital Medical Center, Cincinnati",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "12 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "12 Years to 17 Years"
      },
      "enrollment_count": 1235,
      "start_date": "2021-05-28",
      "completion_date": "2021-12-10",
      "has_results": true,
      "last_update_posted_date": "2024-10-28",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Cincinnati, Ohio",
      "locations": [
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04904744"
    },
    {
      "nct_id": "NCT04939519",
      "title": "SCALE-UP Utah: Community-Academic Partnership to Address COVID-19 Vaccination Rates Among Utah Community Health Centers",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Text-Messaging (TM)",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Patient Navigation (PN)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Utah",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 65300,
      "start_date": "2021-03-29",
      "completion_date": "2023-02-28",
      "has_results": true,
      "last_update_posted_date": "2025-12-12",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04939519"
    },
    {
      "nct_id": "NCT05508698",
      "title": "Flu Shot Pre-visit Questionnaire",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Influenza"
      ],
      "interventions": [
        {
          "name": "Precommitment Nudge",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Salience",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Geisinger Clinic",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 230962,
      "start_date": "2022-08-18",
      "completion_date": "2023-04-08",
      "has_results": false,
      "last_update_posted_date": "2023-07-25",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Danville, Pennsylvania",
      "locations": [
        {
          "city": "Danville",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05508698"
    },
    {
      "nct_id": "NCT05926544",
      "title": "COVID-19 Vaccine Hesitancy Counseling Intervention for Pharmacists",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Standard implementation webinar and online training",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Virtual facilitation",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of North Carolina, Chapel Hill",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 16,
      "start_date": "2023-10-04",
      "completion_date": "2024-06-20",
      "has_results": true,
      "last_update_posted_date": "2026-01-14",
      "last_synced_at": "2026-05-22T08:09:30.147Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05926544"
    }
  ]
}