ProQR Announces Successful Defense of a Key Axiomer® Patent Protecting ADAR-mediated RNA Editing
LEIDEN, Netherlands & CAMBRIDGE, Mass., March 14, 2023 (GLOBE NEWSWIRE) -- ProQR Therapeutics N.V. (Nasdaq: PRQR) (ProQR), a company dedicated to changing lives through transformative RNA therapies, today announced it has successfully defended against two oppositions that were filed against a key patent for its ADAR-mediated RNA editing platform Axiomer®.
The oppositions were filed in February 2021 with the European Patent Office (EPO) by two separate strawmen against ProQR’s granted patent EP 3234134 B1, which is related to targeted RNA editing using endogenous ADARs and is part of ProQR’s intellectual property estate surrounding its Axiomer RNA editing platform. The Opposition Division of the EPO held a public hearing on March 7 and 8, 2023 and ruled in favor of ProQR’s position, after a minor amendment of the main claim and one dependent claim.
ProQR invented the use of endogenous ADAR in RNA editing in 2014 and filed a first patent application in that same year. Since then, ProQR has filed multiple additional patent applications on further improvements to form a leading patent estate that supports ProQR’s ADAR-mediated RNA editing platform Axiomer. Today ProQR has extensive patent protection related to Axiomer, including 10 published patent families, that currently comprise a total of 22 patents. Beyond this, ProQR has several unpublished patent applications and continuously invests in expanding its IP estate around ADAR-mediated RNA editing.
“ProQR owns a robust intellectual property portfolio protecting its Axiomer ADAR-mediated RNA editing platform technology platform. This successful defense of opposition against a key Axiomer patent is an important validation of the strength of our patent estate and confirms our leading IP position in the field,” said René Beukema, Chief Corporate Development Officer and General Counsel. “We are confident about our leading IP estate and look forward to continuing to advance our Axiomer RNA editing technology platform to ultimately benefit patient communities with unmet need”.
ProQR is pioneering a next-generation RNA base editing technology called Axiomer®, which could potentially yield a new class of medicines for diverse types of diseases. Axiomer® “Editing Oligonucleotides”, or EONs, mediate single nucleotide changes to RNA in a highly specific and targeted way using molecular machinery that is present in human cells called ADAR (Adenosine Deaminase Acting on RNA). Axiomer® EONs are designed to recruit and direct endogenously expressed ADARs to change an Adenosine (A) to an Inosine (I) in the RNA – an Inosine is translated as a Guanosine (G) – correcting an RNA with a disease-causing mutation back to a normal (wild type) RNA, modulating protein expression, or altering a protein so that it will have a new function that helps prevent or treat disease.
ProQR Therapeutics is dedicated to changing lives through the creation of transformative RNA therapies. ProQR is pioneering a next-generation RNA technology called Axiomer®, which uses a cell’s own editing machinery called ADAR to make specific single nucleotide edits in RNA to reverse a mutation or modulate protein expression and could potentially yield a new class of medicines for both rare and prevalent diseases with unmet need. Based on our unique proprietary RNA repair platform technologies we are growing our pipeline with patients and loved ones in mind.
Learn more about ProQR at www.proqr.com.
Forward Looking Statements
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