
Intellia Therapeutics Inc. (NASDAQ:NTLA) shares tumbled after the company said it had temporarily paused patient dosing and screening in its Phase 3 MAGNITUDE and MAGNITUDE-2 trials of its experimental CRISPR therapy, nexiguran ziclumeran (nex-z), following a serious liver-related adverse event in one participant.
The company described the pause as a precautionary step while it works with regulators and medical experts to assess the incident.