Clinical Trial: Non-interventional Substudy of ALX-HPP-502 to Assess Natural History of Patients With Juvenile-onset HPP Who Served as Historical Controls in ENB-006-09

Study Status: Completed
Recruit Status: Completed
Study Type: Observational

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Official Title: A Single-Center, Non-interventional Substudy of ALX-HPP-502 to Assess Functional Natural History Data of Patients With Juvenile Historical Controls in ENB-006-09

Brief Summary: The purpose of this study is to characterize the natural history of HPP in patients with Juvenile-onset HPP who served as historical controls in ENB-006-09.