We are a late-stage clinical biopharmaceutical company dedicated to developing and commercializing first-in-class, oral enzyme therapeutics to treat patients with rare and severe metabolic and kidney disorders. We are focused on metabolic disorders that result in excess accumulation of certain metabolites, such as oxalate and urate, that can cause kidney stones, damage the kidney, and potentially lead to chronic kidney disease, or CKD, and end-stage renal disease. Our lead product candidate, ALLN-177, is a first-in-class, oral enzyme therapeutic that we are developing for the treatment of hyperoxaluria, a metabolic disorder characterized by markedly elevated urinary oxalate levels and commonly associated with kidney stones, CKD and other serious kidney diseases. There are currently no approved therapies for the treatment of hyperoxaluria. We have conducted a robust clinical development program of ALLN-177, including three Phase 2 clinical trials, and we expect to initiate the first of two planned pivotal Phase 3 clinical trials for ALLN-177 in the first quarter of 2018, with topline data anticipated in the second half of 2019.