ProQR Announces Positive Results from Clinical Trial of QR-421a in Usher Syndrome and Plans to Start Pivotal Trials QR-421a demonstrated a concordant benefit in multiple measures of vision, including best corrected visual activity (BCVA), static perimetry, and retinal imaging (OCT)QR-421a observed to be well...

ProQR to Present Results from Phase 1/2 Trial of QR-421a for Usher Syndrome LEIDEN, Netherlands & CAMBRIDGE, Mass., March 17, 2021 (GLOBE NEWSWIRE) -- ProQR Therapeutics N.V. (Nasdaq: PRQR) (the “Company”), a company dedicated to changing lives through the creation of...