Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Effects of Theophylline on cAMP Signaling in Children With Pseudohypoparathyroidism Type 1a
Brief Summary: This study will test an investigational drug, theophylline, in children with pseudohypoparathyroidism type 1a (PHP1a). This study involves a 3 day visit to the Vanderbilt Clinical Research Center.