Spark Therapeutics, Inc. announced earnings results for the first quarter ended March 31, 2019. For the first quarter, the company announced total revenue was USD 20.771 million compared to USD 15.676 million a year ago. Operating loss was USD 56.846 million compared to USD 48.912 million a year ago. Net loss was USD 54.358 million compared to USD 46.373 million a year ago. Basic loss per share was USD 1.43 compared to USD 1.25 a year ago.