Heart safety check: mRNA vaccine study finds no major enzyme spike
NCT ID NCT06634797
First seen Feb 04, 2026 · Last updated May 01, 2026 · Updated 12 times
Summary
This study looked at whether a specific mRNA COVID-19 vaccine (mRNA-1273.712) causes a rise in a heart enzyme called troponin, which can signal heart stress. About 1000 healthy volunteers aged 12 to 30 received either the vaccine or a placebo. Researchers measured troponin levels before and after vaccination and found no significant increase linked to the vaccine.
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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.
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
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Locations
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Velocity Clinical Research, Abilene
Abilene, Texas, 79606, United States
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Velocity Clinical Research, Albuquerque
Albuquerque, New Mexico, 87107, United States
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Velocity Clinical Research, Anderson
Anderson, South Carolina, 29621, United States
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Velocity Clinical Research, Banning
San Bernardino, California, 82408, United States
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Velocity Clinical Research, Boise
Meridian, Idaho, 83642, United States
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Velocity Clinical Research, Cincinnati
Cincinnati, Ohio, 45246, United States
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Velocity Clinical Research, Cincinnati, Blue Ash
Blue Ash, Ohio, 45242, United States
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Velocity Clinical Research, Cleveland
Beachwood, Ohio, 44122, United States
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Velocity Clinical Research, Covington
Covington, Louisiana, 70433, United States
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Velocity Clinical Research, Durham
Durham, North Carolina, 27701, United States
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Velocity Clinical Research, Grand Island
Grand Island, Nebraska, 68803, United States
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Velocity Clinical Research, Gulfport
Gulfport, Mississippi, 39503, United States
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Velocity Clinical Research, Huntington Park
Huntington Park, California, 90255, United States
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Velocity Clinical Research, Lafayette
Lafayette, Louisiana, 70508, United States
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Velocity Clinical Research, Lincoln
Lincoln, Nebraska, 68510, United States
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Velocity Clinical Research, New Orleans
New Orleans, Louisiana, 70119, United States
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Velocity Clinical Research, Omaha
Omaha, Nebraska, 68134, United States
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Velocity Clinical Research, Phoenix
Phoenix, Arizona, 85006, United States
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Velocity Clinical Research, Salt Lake City
West Jordan, Utah, 84088, United States
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Velocity Clinical Research, San Diego
La Mesa, California, 91942, United States
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Velocity Clinical Research, Savannah
Savannah, Georgia, 31406, United States
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Velocity Clinical Research, Syracuse
East Syracuse, New York, 13057, United States
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Velocity Clinical Research, Valparaiso
Valparaiso, Indiana, 46383, United States
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Velocity Clinical Research, Washington DC
Washington D.C., District of Columbia, 20016, United States
Conditions
Explore the condition pages connected to this study.