Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional
Official Title: A Multicenter, Uncontrolled, Open-label, Dose-titration Trial to Investigate the Efficacy and Safety of Tolvaptan Tablets in Patients With Hyponatremia in Syndrome of Inappropria
Brief Summary: The objective of this study is to investigate the efficacy and safety of tolvaptan based on the change in serum sodium concentration following administration of tolvaptan oral tablets at 7.5 to 60 mg/day for up to 30 days in patients with hyponatremia in the SIADH.