A Phase 3, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study With an Open-Label Extension Investigating Efficacy, Safety, and Tolerability of Encaleret in Participants With Chronic Hypoparathyroidism

Key Inclusion Criteria: * Participants must have had a clinically confirmed diagnosis of chronic HP, with disease duration of at least 26 weeks prior to screening. Cause of chronic HP can be postsurgical, autoimmune or idiopathic. * For participants with nonsurgical chronic HP etiology, sufficient documentation that the participant does not harbor any variants in calcium-sensing receptor (CASR) or GNA11 that are classified as pathogenic, likely pathogenic, or of uncertain significance, with the exception of benign common polymorphisms (CASR A986S and R990G) is needed. * Participants must be o…