{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pfizer-BioNTech+mRNA+COVID-19+vaccine",
    "query": {
      "intervention": "Pfizer-BioNTech mRNA COVID-19 vaccine"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 22,
    "total_pages": 3,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Pfizer-BioNTech+mRNA+COVID-19+vaccine&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-10-02T15:26:59.568Z",
  "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": "NCT04843774",
      "title": "Vaccine-generated Immunity in Ocrelizumab-treated Patients: Longitudinal Assessments (VIOLA)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "SARS-COV-2 mRNA Vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "NYU Langone Health",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 64,
      "start_date": "2021-04-20",
      "completion_date": "2023-04-18",
      "has_results": false,
      "last_update_posted_date": "2023-11-08",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 2,
      "location_summary": "Denver, Colorado • New York, New York",
      "locations": [
        {
          "city": "Denver",
          "state": "Colorado"
        },
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04843774"
    },
    {
      "nct_id": "NCT05279365",
      "title": "PROSPECTIVE OPEN LABEL CLINICAL TRIAL TO ADMINISTER A BOOSTER DOSE OF PFIZER/BIONTECH OR MODERNA COVID-19 VACCINE IN HIGH-RISK INDIVIDUALS",
      "overall_status": "UNKNOWN",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "SARS CoV 2 Infection",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Pfizer/BioNTech (BNT162b2)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Moderna",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "DHR Health Institute for Research and Development",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1000,
      "start_date": "2021-07-30",
      "completion_date": "2023-08-31",
      "has_results": false,
      "last_update_posted_date": "2022-03-29",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 4,
      "location_summary": "Brownsville, Texas • Edinburg, Texas • Rio Grande City, Texas",
      "locations": [
        {
          "city": "Brownsville",
          "state": "Texas"
        },
        {
          "city": "Edinburg",
          "state": "Texas"
        },
        {
          "city": "Edinburg",
          "state": "Texas"
        },
        {
          "city": "Rio Grande City",
          "state": "Texas"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05279365"
    },
    {
      "nct_id": "NCT06672055",
      "title": "A Study to Evaluate VXA-CoV2-3.3 COVID-19 Vaccine Against Currently Approved/Authorized mRNA COVID-19 Injectable Booster Vaccine in Adults Previously Immunized Against COVID-19 Infection",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "SARS-CoV2",
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "VXA-CoV2-3.1",
          "type": "BIOLOGICAL"
        },
        {
          "name": "COMIRNATY®",
          "type": "BIOLOGICAL"
        },
        {
          "name": "VXA-CoV2-3.3",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Vaxart",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 5485,
      "start_date": "2024-10-08",
      "completion_date": "2027-05",
      "has_results": false,
      "last_update_posted_date": "2026-06-25",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 145,
      "location_summary": "Anniston, Alabama • Birmingham, Alabama • Mobile, Alabama + 126 more",
      "locations": [
        {
          "city": "Anniston",
          "state": "Alabama"
        },
        {
          "city": "Birmingham",
          "state": "Alabama"
        },
        {
          "city": "Mobile",
          "state": "Alabama"
        },
        {
          "city": "Glendale",
          "state": "Arizona"
        },
        {
          "city": "Mesa",
          "state": "Arizona"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06672055"
    },
    {
      "nct_id": "NCT04922944",
      "title": "Post COVID-19 Vaccination Analysis in Healthcare Worker Recipients",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Covid19",
        "Vaccine Reaction"
      ],
      "interventions": [
        {
          "name": "COVID-19 vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Huntington Memorial Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": null,
        "maximum_age": null,
        "sex": "ALL",
        "summary": "Not listed"
      },
      "enrollment_count": 167,
      "start_date": "2021-03-08",
      "completion_date": "2022-03-01",
      "has_results": false,
      "last_update_posted_date": "2024-09-19",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 1,
      "location_summary": "Pasadena, California",
      "locations": [
        {
          "city": "Pasadena",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04922944"
    },
    {
      "nct_id": "NCT04969263",
      "title": "COVID-19 Protection After Transplant Pilot Study",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Kidney Transplant Recipients"
      ],
      "interventions": [
        {
          "name": "BNT162b2 vaccine (Pfizer/BioNTech)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1273 vaccine (Moderna)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 81,
      "start_date": "2021-08-10",
      "completion_date": "2023-03-10",
      "has_results": true,
      "last_update_posted_date": "2025-07-30",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 1,
      "location_summary": "Baltimore, Maryland",
      "locations": [
        {
          "city": "Baltimore",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04969263"
    },
    {
      "nct_id": "NCT05765578",
      "title": "An Observational Study of Moderna COVID-19 Bivalent Vaccines (Original and Omicron BA.4/BA.5) and 2023 Updated mRNA COVID-19 Vaccines (XBB.1.5)",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [
        {
          "name": "Moderna COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Moderna mRNA1273.222 Booster",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pfizer COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Moderna 2023 Updated COVID-19 vaccine (XBB.1.5)",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pfizer 2023 Updated COVID-19 vaccine (XBB.1.5)",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "ModernaTX, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 1713,
      "start_date": "2023-03-08",
      "completion_date": "2024-06-17",
      "has_results": false,
      "last_update_posted_date": "2024-07-31",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 1,
      "location_summary": "Culver City, California",
      "locations": [
        {
          "city": "Culver City",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT05765578"
    },
    {
      "nct_id": "NCT04761822",
      "title": "COVID19 SARS Vaccinations: Systemic Allergic Reactions to SARS-CoV-2 Vaccinations",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "SARS-CoV Infection",
        "COVID-19",
        "Allergic Reaction",
        "Mast Cell Disorder"
      ],
      "interventions": [
        {
          "name": "Moderna COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Pfizer-BioNTech COVID-19 Vaccine",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Placebo",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "National Institute of Allergy and Infectious Diseases (NIAID)",
      "sponsor_class": "NIH",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "5 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "5 Years and older"
      },
      "enrollment_count": 746,
      "start_date": "2021-04-07",
      "completion_date": "2022-04-27",
      "has_results": true,
      "last_update_posted_date": "2025-08-12",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 29,
      "location_summary": "Tucson, Arizona • Little Rock, Arkansas • Los Angeles, California + 24 more",
      "locations": [
        {
          "city": "Tucson",
          "state": "Arizona"
        },
        {
          "city": "Little Rock",
          "state": "Arkansas"
        },
        {
          "city": "Los Angeles",
          "state": "California"
        },
        {
          "city": "Stanford",
          "state": "California"
        },
        {
          "city": "Denver",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04761822"
    },
    {
      "nct_id": "NCT07287137",
      "title": "Comparative Immunogenicity of Respiratory Virus Vaccines (CIRV2) Study",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "COVID -19",
        "COVID - 19",
        "COVID 19",
        "Influenza",
        "Respiratory Virus",
        "Respiratory Viruses",
        "Respiratory Virus Infection",
        "Respiratory Virus Infections"
      ],
      "interventions": [
        {
          "name": "Pfizer-BioNTech mRNA COVID-19 vaccine",
          "type": "DRUG"
        },
        {
          "name": "Novavax recombinant protein vaccine",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Henry M. Jackson Foundation for the Advancement of Military Medicine",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "79 Years",
        "sex": "ALL",
        "summary": "18 Years to 79 Years"
      },
      "enrollment_count": 54,
      "start_date": "2025-11-12",
      "completion_date": "2027-09",
      "has_results": false,
      "last_update_posted_date": "2026-09-11",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 1,
      "location_summary": "Bethesda, Maryland",
      "locations": [
        {
          "city": "Bethesda",
          "state": "Maryland"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07287137"
    },
    {
      "nct_id": "NCT04834869",
      "title": "COVID-19 Vaccines Safety Tracking (CoVaST)",
      "overall_status": "RECRUITING",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "Adverse Reaction to Vaccine",
        "COVID19 Vaccine"
      ],
      "interventions": [
        {
          "name": "BNT162b2",
          "type": "BIOLOGICAL"
        },
        {
          "name": "mRNA-1273",
          "type": "BIOLOGICAL"
        },
        {
          "name": "AZD1222",
          "type": "BIOLOGICAL"
        },
        {
          "name": "CoronaVac",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Sinopharm",
          "type": "BIOLOGICAL"
        },
        {
          "name": "Gam-COVID-Vac",
          "type": "BIOLOGICAL"
        },
        {
          "name": "JNJ-78436735",
          "type": "BIOLOGICAL"
        },
        {
          "name": "CVnCoV",
          "type": "BIOLOGICAL"
        },
        {
          "name": "NVX-CoV2373",
          "type": "BIOLOGICAL"
        },
        {
          "name": "BBV152",
          "type": "BIOLOGICAL"
        }
      ],
      "intervention_types": [
        "BIOLOGICAL"
      ],
      "sponsor": "Masaryk University",
      "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": "2021-04-01",
      "completion_date": "2026-12-31",
      "has_results": false,
      "last_update_posted_date": "2022-04-06",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 1,
      "location_summary": "Philadelphia, Pennsylvania",
      "locations": [
        {
          "city": "Philadelphia",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04834869"
    },
    {
      "nct_id": "NCT04742569",
      "title": "Wearable Diagnostic for Detection of COVID-19 Infection",
      "overall_status": "COMPLETED",
      "study_type": "OBSERVATIONAL",
      "phases": [],
      "conditions": [
        "COVID-19"
      ],
      "interventions": [],
      "intervention_types": [],
      "sponsor": "ClinOne, Inc.",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 790,
      "start_date": "2020-12-21",
      "completion_date": "2022-01-15",
      "has_results": false,
      "last_update_posted_date": "2022-01-20",
      "last_synced_at": "2026-10-02T15:26:59.568Z",
      "location_count": 1,
      "location_summary": "Greenwood Village, Colorado",
      "locations": [
        {
          "city": "Greenwood Village",
          "state": "Colorado"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04742569"
    }
  ]
}