Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Interventional
Official Title: An Open Label Extension Study of the Safety and Anti-Pruritic Efficacy of Nalbuphine HCl ER Tablets in Prurigo Nodularis Patients
Brief Summary: The primary objective of the study is to evaluate the overall safety of nalbuphine HCL ER tablets during a treatment period of up to 50 weeks.