Proteostasis Therapeutics, Inc. announced board changes. M. James Barrett, Ph.D. Dr. Barrett has served on the Board of Directors since May 2015 and as Chairman since June 2016. Dr. Barrett notified of his decision to retire from service on the Board of Directors following completion of his current term and will not stand for re-election at the Annual Meeting. Dr. Barrett was a general partner of New Enterprise Associates, Inc., or NEA, a venture capital fund, from 2001 to 2018.