7 studies were found.

1.		Recruiting	CORE: A Study of OPC-6535 with Asacol® in Maintaining Ulcerative Colitis (UC) Remission Condition: Ulcerative Colitis
2.		Recruiting	EVEREST: Efficacy of Vasopressin antagonism in hEart failuRE: outcome Study with Tolvaptan Condition: Congestive Heart Failure
3.		Recruiting	FACTS I: A Study to Test the Safety and Effectiveness of a New Medication on the Treatment of Active Ulcerative Colitis Condition: Ulcerative Colitis
4.		Recruiting	FACTS II: A Study to Test the Safety and Effectiveness of a New Medication on the Treatment of Active Ulcerative Colitis Condition: Ulcerative Colitis
5.		Recruiting	Multicenter, Randomized, Double-Blind, Placebo Controlled, Efficacy Study on the Effects of Tolvaptan on Left Ventricular Dilatation in Congestive Heart Failure Patients Condition: Congestive Heart Failure
6.		Not yet recruiting	Oral Tolvaptan in Patients with Hyponatremia Condition: Hyponatremia
7.		Completed	Study to Compare the Effects of Two Dosages of Tolvaptan in Congestive Heart Failure Patients Condition: Congestive Heart Failure