{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine",
    "query": {
      "intervention": "COVID-19 Vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 400,
    "total_pages": 40,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=COVID-19+Vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-26T02:56:55.267Z",
  "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": "NCT04770649",
      "title": "Vaccine Observation to Include All Communities for Equitable Science",
      "overall_status": "TERMINATED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Vaccine Response Impaired",
        "Vaccine Adverse Reaction"
      ],
      "interventions": [
        {
          "name": "COVID-19 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Persephone Biosciences",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 15,
      "start_date": "2021-04-01",
      "completion_date": "2022-12-31",
      "has_results": false,
      "last_update_posted_date": "2024-04-05",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 1,
      "location_summary": "San Diego, California",
      "locations": [
        {
          "city": "San Diego",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04770649"
    },
    {
      "nct_id": "NCT05764174",
      "title": "Digital Applications to Monitor Novel Coronavirus Disease and Response in Colombia - Syndromic and Vaccination Surveillance",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Vaccination Refusal",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Factual messages",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Narrative message",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Mixed message",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "Johns Hopkins Bloomberg School of Public Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 2409,
      "start_date": "2022-09-21",
      "completion_date": "2022-12-17",
      "has_results": false,
      "last_update_posted_date": "2023-03-10",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05764174"
    },
    {
      "nct_id": "NCT06633835",
      "title": "Impact of Reactogenicity of the 2024-2025 COVID-19 Vaccines on Health Care Workers and First Responders in the United States",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID-19",
        "Vaccine-Preventable Diseases",
        "SARS CoV 2 Infection"
      ],
      "interventions": [
        {
          "name": "protein subunit: Novavax COVID-19 vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pfizer mRNA COVID-19 vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novavax",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 660,
      "start_date": "2024-09-19",
      "completion_date": "2025-06-30",
      "has_results": false,
      "last_update_posted_date": "2026-06-02",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 1,
      "location_summary": "Salt Lake City, Utah",
      "locations": [
        {
          "city": "Salt Lake City",
          "state": "Utah"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06633835"
    },
    {
      "nct_id": "NCT03730948",
      "title": "DC Vaccine in Colorectal Cancer",
      "overall_status": "TERMINATED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "Colorectal Cancer"
      ],
      "interventions": [
        {
          "name": "DC vaccine",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "University of Pennsylvania",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 4,
      "start_date": "2019-03-12",
      "completion_date": "2022-12-01",
      "has_results": true,
      "last_update_posted_date": "2024-05-24",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03730948"
    },
    {
      "nct_id": "NCT07183709",
      "title": "Safety and Immunogenicity Trial of PepGNP-COVID19 Vaccine in Adults",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "PepGNP-COVID19",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sterile Water for Injection",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL",
        "OTHER"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "64 Years",
        "sex": "ALL",
        "summary": "18 Years to 64 Years"
      },
      "enrollment_count": 60,
      "start_date": "2026-02-02",
      "completion_date": "2026-10-18",
      "has_results": false,
      "last_update_posted_date": "2026-05-15",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 3,
      "location_summary": "Birmingham, Alabama • Washington D.C., District of Columbia • Cincinnati, Ohio",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Washington D.C.",
          "state": "District of Columbia"
        },
        {
          "city": "Cincinnati",
          "state": "Ohio"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07183709"
    },
    {
      "nct_id": "NCT05910879",
      "title": "RADx-UP Phase 3D (Oregon Saludable: Juntos Podemos)",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Health Behavior",
        "Health Care Utilization",
        "Vaccine Hesitancy"
      ],
      "interventions": [
        {
          "name": "Self-Affirmation Implementation Intentions (SAII) Intervention",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Promotores de Salud (Health Education)",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Oregon",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 625,
      "start_date": "2023-04-22",
      "completion_date": "2025-02-28",
      "has_results": true,
      "last_update_posted_date": "2026-08-12",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 1,
      "location_summary": "Eugene, Oregon",
      "locations": [
        {
          "city": "Eugene",
          "state": "Oregon"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05910879"
    },
    {
      "nct_id": "NCT05975060",
      "title": "A Study to Evaluate the Safety and Immunogenicity of an (Omicron Subvariant) COVID-19 Vaccine Booster Dose in Previously Vaccinated Participants and Unvaccinated Participants.",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "XBB.1.5 Vaccine (Booster)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "XBB.1.5 Vaccine (single dose)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Novavax",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "54 Years",
        "sex": "ALL",
        "summary": "18 Years to 54 Years"
      },
      "enrollment_count": 660,
      "start_date": "2023-09-07",
      "completion_date": "2024-05-20",
      "has_results": false,
      "last_update_posted_date": "2024-05-30",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 30,
      "location_summary": "Mobile, Alabama • Sacramento, California • Colorado Springs, Colorado + 26 more",
      "locations": [
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Sacramento",
          "state": "California"
        },
        {
          "city": "Colorado Springs",
          "state": "Colorado"
        },
        {
          "city": "Coral Gables",
          "state": "Florida"
        },
        {
          "city": "Fort Myers",
          "state": "Florida"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05975060"
    },
    {
      "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": "2026-09-26T02:56:55.267Z",
      "location_count": 1,
      "location_summary": "Chapel Hill, North Carolina",
      "locations": [
        {
          "city": "Chapel Hill",
          "state": "North Carolina"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05926544"
    },
    {
      "nct_id": "NCT05596734",
      "title": "A Study to Evaluate the Safety, Tolerability, and Immunogenicity of Combined Modified RNA Vaccine Candidates Against COVID-19 and Influenza",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Influenza, Human",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "bivalent BNT162b2 (original/Omi BA.4/BA.5)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "qIRV (22/23)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "QIV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "bIRV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "tIRV",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "BioNTech SE",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1019,
      "start_date": "2022-10-28",
      "completion_date": "2023-12-28",
      "has_results": true,
      "last_update_posted_date": "2025-07-23",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 59,
      "location_summary": "Athens, Alabama • Phoenix, Arizona • Lake Forest, California + 40 more",
      "locations": [
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Athens",
          "state": "Alabama"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Phoenix",
          "state": "Arizona"
        },
        {
          "city": "Lake Forest",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05596734"
    },
    {
      "nct_id": "NCT04951102",
      "title": "An Electronic Shared Decision-Making Application to Improve Asthma Outcomes",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Asthma"
      ],
      "interventions": [
        {
          "name": "Electronic Asthma Shared Decision-Making App",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Shared Decision Making Physician Training Video",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Electronic Asthma Shared Decision-Making App- Patient Data",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Standard Care",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "BEHAVIORAL"
      ],
      "sponsor": "University of Michigan",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 81,
      "start_date": "2021-03-03",
      "completion_date": "2022-09-14",
      "has_results": false,
      "last_update_posted_date": "2022-11-17",
      "last_synced_at": "2026-09-26T02:56:55.267Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04951102"
    }
  ]
}