CAMBRIDGE, Mass.--(BUSINESS WIRE)--Altus Pharmaceuticals Inc. (NASDAQ: ALTU) today reported top-line results from a Phase 1 clinical trial of ALTU-237 in healthy adult volunteers. ALTU-237 achieved a favorable safety profile - - the primary objective of the study. ALTU-237 is an orally-delivered crystalline formulation of an oxalate-degrading enzyme that is being developed for the treatment of hyperoxalurias and the possible prevention of recurrent kidney stones in individuals with a high risk or history of kidney stones. Currently, there are limited pharmacological treatments available for these diseases.