Proteostasis Therapeutics, Inc. announced earnings results for the first quarter ended March 31, 2020. For the first quarter, the company announced sales was USD 0 compared to USD 5.000 million a year ago. Operating loss was USD 10.105 million compared to USD 15.091 million a year ago. Net loss was USD 9.878 million compared to USD 14.418 million a year ago. Basic loss per share from continuing operations was USD 0.19 compared to USD 0.28 a year ago.