ProQR (PRQR) Begins Dosing In Phase I/II Eye Disorder Study

 | Dec 12, 2019 03:19AM ET

ProQR Therapeutics N.V. (NASDAQ:PRQR) announced that it has dosed the first patient in a phase I/II study, Aurora, evaluating its investigational RNA-based candidate QR-1123 for the treatment of patients with autosomal dominant retinitis pigmentosa (adRP). Initial data from the study is expected in 2021.

The Aurora study will enroll up to 35 adult patients with adRP due to the P23H mutation in the rhodopsin (RHO) gene. Per the company, the study will include single-dose escalation (open label) and multiple-dose escalation (double-masked) groups where intravitreal injections of QR-1123 or sham procedures will be given in one eye. The aim of the study is to evaluate the safety and tolerability of the candidate.

Notably, last October, ProQR in-licensed QR-1123 from Ionis Pharmaceuticals (NASDAQ:IONS) .

In November 2019, the FDA granted Orphan Drug designation to QR-1123 for treating adRP due to the P23H mutation. Earlier in September, the regulatory body granted a Fast Track status to QR-1123 for the same indication.

We remind investors that previously in August, the FDA cleared the investigational new drug application for QR-1123 to treat adRP due to the P23H mutation. The indication currently has no approved therapy.

Shares of ProQR have declined 44.4% so far this year against the industry’s increase of 6.8%.