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Clinical trialNCT04761822CompletedPhase 2Interventional

COVID19 SARS Vaccinations: Systemic Allergic Reactions to SARS-CoV-2 Vaccinations

SponsorNational Institute of Allergy and Infectious Diseases (NIAID)Enrollment746Allergic ReactionCOVID-19Mast Cell DisorderSARS-CoV Infection
View the registry record on ClinicalTrials.gov

Summary

The registered summary isn't in our current data snapshot. Read it on the ClinicalTrials.gov record ↗. Why? →

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

  • James R. Baker Jr., MD

    Mary H. Weiser Food Allergy Center and Michigan Nanotechnology Institute for Medicine and the Biological Sciences

    Study Chair
  • N. Franklin Atkinson Jr., MD

    Graduate Training Program in Clinical Investigation Associate TP Director, Allergy-Immunology Johns Hopkins Asthma & Allergy Center

    Study Chair
  • Rebecca S. Gruchalla, MD, PhD

    Division of Allergy and Immunology Departments of Internal Medicine and Pediatrics, University of Texas Southwestern

    Study Chair

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

29 registered facilities, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • University of Arizona Health Sciences, College of Medicine Tucson, Department of Medicine, Division of Pulmonary, Allergy, Critical Care and Sleep Medicine

    Tucson, Arizona, United States

  • Arkansas Children'S, University of Arkansas for Medical Sciences

    Little Rock, Arkansas, United States

  • University of California, Los Angeles Medical Center

    Los Angeles, California, United States

  • Stanford Medicine, Sean N. Parker Center for Allergy & Asthma Research

    Stanford, California, United States

  • National Jewish Health

    Denver, Colorado, United States

  • University Health, University of Miami Health System

    Miami, Florida, United States

  • University of South Florida Asthma Allergy and Immunology Clinical Research Unit

    Tampa, Florida, United States

  • Emory University School of Medicine, Emory Healthcare: Emory Clinic Allergy and Immunology

    Atlanta, Georgia, United States

  • Sinus and Allergy Center of Northwestern University

    Chicago, Illinois, United States

  • Northshore University Healthsystem, Dermatology Clinical Trials Unit

    Skokie, Illinois, United States

  • University of Iowa Health Care

    Iowa City, Iowa, United States

  • Johns Hopkins Bayview Medical Center

    Baltimore, Maryland, United States

  • Brigham and Women'S Hospital

    Boston, Massachusetts, United States

  • Massachusetts General Hospital

    Boston, Massachusetts, United States

  • University of Michigan Health

    Ann Arbor, Michigan, United States

  • Henry Ford Hospital and Health System

    Detroit, Michigan, United States

  • Saint Louis University Care Center for Specialized Medicine

    St Louis, Missouri, United States

  • Columbia University Irving Medical Center

    New York, New York, United States

  • Mount Sinai Hospital, Department of Medicine, Division of Clinical Immunology

    New York, New York, United States

  • Rochester Regional Health

    Rochester, New York, United States

  • North Carolina Translational and Clinical Sciences Institute-Clinical & Translational Research Center (ctrc) at the University of North Carolina at Chapel Hill

    Chapel Hill, North Carolina, United States

  • Cleveland Clinic, Allergy & Clinical Immunology

    Cleveland, Ohio, United States

  • Penn State Health Allergy, Milton S. Hershey Medical Center

    Hershey, Pennsylvania, United States

  • Vanderbilt University Medical Center

    Nashville, Tennessee, United States

  • University of Texas Southwestern Medical Center

    Dallas, Texas, United States

  • Baylor College of Medicine Medical Center

    Houston, Texas, United States

  • University of Virginia Health System: Department of Medicine, Division of Allergy and Immunology

    Charlottesville, Virginia, United States

  • Virginia Commonwealth University, Department of Internal Medicine, Division of Rheumatology, Allergy & Immunology

    Richmond, Virginia, United States

  • University of Wisconsin Asthma Allergy Pulmonary Research

    Madison, Wisconsin, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study — it may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
7 Apr 2021
Primary completion
20 Apr 2022
Completion
27 Apr 2022
Last update posted
12 Aug 2025
Registered enrollment
746
Registry id
NCT04761822

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 12 Jul 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.