Intellia Therapeutics Inc. followed up troubling news in May with a similar, and worse, update regarding the Magnitude and Magnitude-2 phase III trials with nexiguran ziclumeran, also known as nex-z, for patients with transthyretin amyloidosis with cardiomyopathy and polyneuropathy, respectively.

Investors found in an 8-K filing by Intellia Therapeutics Inc. the news of one case of liver-enzyme elevation in the ongoing phase III Magnitude study with nexiguran ziclumeran (nex-z, NTLA-2001), and in reaction pushed shares of the firm (NASDAQ:NTLA) down to close May 29 at $7.45, a loss of $2.21, or 23%, after the stock traded as low as $6.90 during the day.