Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Observational
Official Title: Respiratory Muscle Function in Untreated X-Linked Myotubular Myopathy (XLMTM)
Brief Summary: This study is a longitudinal study evaluating the severity and progression of respiratory muscle function in patients with X-Linked Myotubular Myopathy (XLMTM) aged 0-14.