~12 spots leftby Apr 2026

8-Week Study of Tolvaptan Dose Forms in Autosomal Dominant Polycystic Kidney Disease (ADPKD)

(NOCTURNE Trial)

Recruiting in Palo Alto (17 mi)
+33 other locations
Age: 18 - 65
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 2
Waitlist Available
Sponsor: Otsuka Pharmaceutical Development & Commercialization, Inc.
Prior Safety Data

Trial Summary

What is the purpose of this trial?

The purpose of this study is to compare the short-term effects of two tolvaptan formulations in patients with ADPKD.

Research Team

FC

Frank Czerwiec, M.D., Ph.D.

Principal Investigator

Otsuka Pharmaceutical Development & Commercialization, Inc.

Eligibility Criteria

Inclusion Criteria

Age 18 to 50
BMI between 19 and 35 kg/m2
family history: 3cysts/kidney if by sonography or 5 by CT or MRI
See 5 more

Treatment Details

Interventions

  • Placebo (Drug)
  • Tolvaptan IR (Vasopressin V2 Receptor Antagonist)
  • Tolvaptan MR (Vasopressin V2 Receptor Antagonist)
Participant Groups
4Treatment groups
Experimental Treatment
Placebo Group
Group I: Tolvaptan MR 80 mgExperimental Treatment2 Interventions
Tolvaptan MR 80 mg capsule and 2 placebo IR tablets (8 AM) and 1 placebo IR tablet (4 PM) daily.
Group II: Tolvaptan MR 50 mgExperimental Treatment2 Interventions
Tolvaptan MR 50 mg capsule and 2 placebo IR tablets ( 8 AM) and 1 placebo IR tablet (4 PM) daily.
Group III: Tolvaptan IR 60/30 mgExperimental Treatment2 Interventions
Two tolvaptan IR 30-mg tablets and 1 placebo MR capsule (8 AM) and 1 tolvaptan IR 30-mg tablet (4 PM) daily.
Group IV: PlaceboPlacebo Group1 Intervention
Placebo MR capsule and 2 placebo IR tablets (8 AM) and 1 placebo IR tablet (4 PM) daily.

Find a Clinic Near You

Who Is Running the Clinical Trial?

Otsuka Pharmaceutical Development & Commercialization, Inc.

Lead Sponsor

Trials
271
Recruited
170,000+
John Kraus profile image

John Kraus

Otsuka Pharmaceutical Development & Commercialization, Inc.

Chief Medical Officer since 2023

MD, PhD

Tarek Rabah profile image

Tarek Rabah

Otsuka Pharmaceutical Development & Commercialization, Inc.

Chief Executive Officer since 2022

BS in Biology and BA in Business from the American University of Beirut, MBA from McGill University