COVID vaccine shield for kids: major trial shows promise

NCT ID NCT04816643

First seen May 29, 2026 · Last updated May 29, 2026

Summary

This large study tested the safety and immune response of the Pfizer-BioNTech COVID-19 vaccine in over 11,800 healthy children aged 6 months to 12 years. Researchers gave the vaccine or a placebo and tracked side effects like injection site pain and fever, as well as the body's antibody production. The goal was to find the right dose and confirm the vaccine works well in younger age groups.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Locations

  • AHN Erie Health + Wellness Pavillion: West

    Erie, Pennsylvania, 16506, United States

  • Acevedo Clinical Research Associates

    Miami, Florida, 33142, United States

  • Advanced Specialty Care

    Commack, New York, 11725, United States

  • Alliance for Multispecialty Research, LLC

    Newton, Kansas, 67114, United States

  • Alliance for Multispecialty Research, LLC

    Wichita, Kansas, 67207, United States

  • Atlanta Center for Medical Research

    Atlanta, Georgia, 30331, United States

  • Atrium Health-STRIVE Vaccine Research Clinic

    Charlotte, North Carolina, 28207, United States

  • Atrium Health-STRIVE Vaccine Research Clinic (study visits)

    Matthews, North Carolina, 28105, United States

  • Bay Colony Pediatrics

    Dickinson, Texas, 77539, United States

  • Bayview Research Group, LLC

    Valley Village, California, 91607, United States

  • Boston Medical Center

    Boston, Massachusetts, 02118, United States

  • CEPIC - Centro Paulista de Investigação Clínica e Serviços Médicos Ltda.

    São Paulo, 04266-010, Brazil

  • CHRISTUS - LATAM HUB Center of excellence and innovation S.C.

    Monterrey, Nuevo León, C.P. 64060, Mexico

  • Cancer Institute of New Jersey

    New Brunswick, New Jersey, 08901, United States

  • CePCLIN - Centro de Estudos e Pesquisas em Moléstias Infecciosas Ltda

    Natal, Rio Grande do Norte, 59025-050, Brazil

  • Cedar Health Research

    Dallas, Texas, 75251, United States

  • Center for Clinical Trials

    Paramount, California, 90723, United States

  • Center for Clinical Trials, LLC

    Paramount, California, 90723, United States

  • Centricity Research Columbus Ohio Multispecialty

    Columbus, Ohio, 43213, United States

  • Centro Multidisciplinario Para El Desarrollo Especializado De La Investigacion

    Mérida, Yucatán, 97130, Mexico

  • Centrum Badan Klinicznych JCI

    Krakow, 30-348, Poland

  • Children's Hospital & Medical Center

    Omaha, Nebraska, 68114, United States

  • Children's Hospital Colorado

    Aurora, Colorado, 80045, United States

  • Children's Mercy Hospital

    Kansas City, Missouri, 64108, United States

  • Children's National Medical Center

    Washington D.C., District of Columbia, 20010, United States

  • Children's Physician's Clinic, Spring Valley

    Omaha, Nebraska, 68117, United States

  • Cincinnati Children's Hospital Medical Center Vaccine Research Center

    Cincinnati, Ohio, 45229, United States

  • Clinical & Translational Research Unit (CTRU) & Spectrum BioBank, Stanford University

    Palo Alto, California, 94304, United States

  • Clinical Neuroscience Solutions

    Orlando, Florida, 32801, United States

  • Clinical Neuroscience Solutions, Inc.

    Jacksonville, Florida, 32256, United States

  • Clinical Research Associates Inc

    Nashville, Tennessee, 37203, United States

  • Clinical Research Prime

    Idaho Falls, Idaho, 83404, United States

  • Clinical Research Professionals

    Chesterfield, Missouri, 63005, United States

  • Coastal Pediatric Research

    Charleston, South Carolina, 29414, United States

  • Coastal Pediatric Research

    Summerville, South Carolina, 29486, United States

  • Cyn3rgy Research

    Gresham, Oregon, 97030, United States

  • DM Clinical Research - MDC

    Houston, Texas, 77065, United States

  • Driscoll Children's Hospital

    Corpus Christi, Texas, 78411, United States

  • Duke University - Main Hospital and Clinics

    Durham, North Carolina, 27703, United States

  • EBA Centelles

    Centelles, Barcelona, 08540, Spain

  • Emerson Clinical Research Institute

    Washington D.C., District of Columbia, 20009, United States

  • Emory Children's Center Illness POD

    Atlanta, Georgia, 30322, United States

  • Emory University School of Medicine

    Atlanta, Georgia, 30322, United States

  • FVR, Espoo Clinic

    Espoo, 02230, Finland

  • FVR, Helsinki East Clinic

    Helsinki, 00930, Finland

  • FVR, Helsinki South Clinic

    Helsinki, 00100, Finland

  • FVR, Järvenpää Clinic

    Jarvenpaa, Uusimaa, 04400, Finland

  • FVR, Kokkola Clinic

    Kokkola, 67100, Finland

  • FVR, Oulu Clinic

    Oulu, North Ostrobothnia, 90220, Finland

  • FVR, Pori Clinic

    Pori, 28100, Finland

  • FVR, Seinäjoki Clinic

    Seinäjoki, 60100, Finland

  • FVR, Tampere Clinic

    Tampere, 33100, Finland

  • FVR, Turku Clinic

    Turku, 20520, Finland

  • GRAVITA Diagnostyka i Leczenie nieplodnosci

    Lodz, 91-347, Poland

  • Grupo Pediatrico Uncibay

    Málaga, Málaga, 29015, Spain

  • HG Pediatrics

    Houston, Texas, 77008, United States

  • Helios Clinical Research

    Houston, Texas, 77008, United States

  • Helios Clinical Research - HOU

    Houston, Texas, 77008, United States

  • Hospital Clinico Universitario Santiago de Compostela

    Santiago de Compostela, A Coruña, 15706, Spain

  • Hospital Sant Joan de Deu

    Esplugues de Llobregat, Barcelona, 08950, Spain

  • Hospital Santo Antônio - Obras Sociais Irmã Dulce/ Centro de Pesquisa Clínica - CPEC

    Salvador, Estado de Bahia, 40415-006, Brazil

  • Hospital Universitari General de Catalunya

    Sant Cugat del Vallès, Barcelona, 08195, Spain

  • Hospital Universitario 12 de Octubre

    Madrid, 28041, Spain

  • Hospital Universitario HM Monteprincipe

    Boadilla del Monte, Madrid, 28660, Spain

  • Hospital Universitario HM Puerta del Sur

    Madrid, Madrid, Comunidad de, 28938, Spain

  • Hospital de Antequera

    Antequera, Málaga, 29200, Spain

  • IN-VIVO Bydgoszcz

    Bydgoszcz, 85-048, Poland

  • Innovo Research - Austin Regional Clinic

    Austin, Texas, 78726, United States

  • Instituto Hispalense de Pediatria

    Seville, 41012, Spain

  • J. Lewis Research, Inc. / Foothill Family Clinic

    Salt Lake City, Utah, 84109, United States

  • J. Lewis Research, Inc. / Foothill Family Clinic South

    Salt Lake City, Utah, 84121, United States

  • Johns Hopkins Bayview Medical Center

    Baltimore, Maryland, 21224, United States

  • Kaiser Permanente Oakland

    Oakland, California, 94611, United States

  • Kaiser Permanente Sacramento

    Sacramento, California, 95815, United States

  • Kaiser Permanente Santa Clara

    Santa Clara, California, 95051, United States

  • Kentucky Pediatric/ Adult Research

    Bardstown, Kentucky, 40004, United States

  • Kohler & Milstein Research S.A. de C.V.

    Mérida, Yucatán, 97070, Mexico

  • Louisiana State University Health Sciences Shreveport

    Shreveport, Louisiana, 71101, United States

  • Lucile Packard Children's Hospital Stanford

    Palo Alto, California, 94304, United States

  • MICS Centrum Medyczne Torun

    Torun, Kuyavian-Pomeranian Voivodeship, 87-100, Poland

  • Madera Family Medical Group

    Madera, California, 93637, United States

  • Matrix Clinical Research

    Los Angeles, California, 90057, United States

  • MeVac - Meilahti Vaccine Research Center

    Helsinki, 00290, Finland

  • Meridian Clinical Research LLC

    Binghamton, New York, 13905, United States

  • Meridian Clinical Research, LLC

    Macon, Georgia, 31210, United States

  • Meridian Clinical Research, LLC

    Hastings, Nebraska, 68901, United States

  • Michigan Center of Medical Research

    Bingham Farms, Michigan, 48025, United States

  • Niepubliczny Zaklad Lecznictwa Ambulatoryjnego Michalkowice Jarosz i Partnerzy Spolka Lekarska

    Siemianowice Śląskie, 41-103, Poland

  • Novak Center for Children's Health

    Louisville, Kentucky, 40202, United States

  • Ochsner Clinic Foundation

    New Orleans, Louisiana, 70121, United States

  • Osrodek Badan Klinicznych Appletreeclinics

    Lodz, 90-349, Poland

  • Pediatric Associates

    Houston, Texas, 77087, United States

  • Pediatric Associates of Charlottesville, PLC (Private Pediatric Practice)

    Charlottesville, Virginia, 22902, United States

  • Peninsula Research Associates

    Rolling Hills Estates, California, 90274, United States

  • Phoenix Children's Hospital

    Phoenix, Arizona, 85016, United States

  • PriMed Clinical Research

    Dayton, Ohio, 45429, United States

  • Proactive Clinical Research, LLC

    Edinburg, Texas, 78539, United States

  • Provita 001

    Warsaw, 02-647, Poland

  • Rochester Clinical Research, Inc.

    Rochester, New York, 14609, United States

  • Rodzinne Centrum Medyczne LUBMED

    Luboń, 62-030, Poland

  • Rophe Adult and Pediatric Medicine/SKYCRNG

    Union City, Georgia, 30291, United States

  • Rutgers University

    New Brunswick, New Jersey, 08901, United States

  • SCPMG/Kaiser Permanente Los Angeles Medical Center

    Los Angeles, California, 90027, United States

  • SKY Integrative Medical Center/SKYCRNG

    Ridgeland, Mississippi, 39157, United States

  • SUNY Upstate Medical University

    Syracuse, New York, 13210, United States

  • Santa Casa De Misericórdia de Belo Horizonte

    Belo Horizonte, Minas Gerais, 30150-221, Brazil

  • Seattle Children's Hospital

    Seattle, Washington, 98105, United States

  • Senders Pediatrics

    South Euclid, Ohio, 44121, United States

  • Serviço de Infectologia e Controle de Infecção Hospitalar de Curitiba/ Centro Médico São Francisco

    Curitiba, Paraná, 80810-050, Brazil

  • Sociedad de Metabolismo y Corazón S.C.

    Veracruz, C.P. 91900, Mexico

  • Solaris Clinical Research

    Meridian, Idaho, 83646, United States

  • St. Jude Children's Research Hospital

    Memphis, Tennessee, 38105, United States

  • Stanford Health Care

    Stanford, California, 94305, United States

  • Stanford Health Care Investigational Drug Service

    Stanford, California, 94305, United States

  • Stony Brook University

    Stony Brook, New York, 11794, United States

  • Teen Health Connection (study visits)

    Charlotte, North Carolina, 28211, United States

  • Texas Children's Hospital - Clinical Research Center

    Houston, Texas, 77030, United States

  • Tribe Clinical Research, LLC

    Greenville, South Carolina, 29607, United States

  • University of Alabama at Birmingham - School of Medicine

    Birmingham, Alabama, 35233, United States

  • University of Rochester Medical Center

    Rochester, New York, 14642, United States

  • Van Tran Family Practice

    Houston, Texas, 77008, United States

  • Velocity Clinical Research, Lincoln

    Lincoln, Nebraska, 68510, United States

  • Velocity Clinical Research, Washington DC

    Washington D.C., District of Columbia, 20016, United States

  • Velocity Clinical Research-Providence

    East Greenwich, Rhode Island, 02818, United States

  • Village Health Partners (Patient Seen Address)

    Frisco, Texas, 75033, United States

  • Virginia Research Center

    Midlothian, Virginia, 23114, United States

  • West Houston Clinical Research Services

    Houston, Texas, 77055, United States

  • Yale Center for Clinical Investigation

    New Haven, Connecticut, 06519, United States

Conditions

Explore the condition pages connected to this study.