Gene Editing NIH-funded clinical trial begins study of systemic allergic reactions to COVID-19 vaccines Posted on April 7, 2021 by Editorial Staff A clinical trial is underway to determine whether people who are highly allergic or have a mast cell disorder are at increased risk for an immediate, systemic allergic reaction to the Moderna or Pfizer-BioNTech COVID-19 vaccines. Share on Facebook Tweet Follow us Share Share Share Share Share Editorial Staff Pandemic’s mitigation efforts may have contributed to drop in clinical trial completion rates Memory and executive function symptoms are valuable for predicting CTE pathology, suggests study