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Completed Phase 2 Interventional Results available

Tolvaptan Open-label Pilot Efficacy, Tolerability, and Safety Study in Autosomal Dominant Polycystic Kidney Disease (ADPKD)

ClinicalTrials.gov ID: NCT00413777

Public ClinicalTrials.gov record NCT00413777. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 2, 2026, 10:02 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 2, Multi-center, Open-label Study to Determine Long-term Safety, Tolerability and Efficacy of Split-dose Oral Regimens of Tolvaptan Tablets in a Range of 30 to 120 mg/d in Patients With Autosomal Dominant Polycystic Kidney Disease

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study's purpose is to evaluate the long-term safety of open-label tolvaptan regimens to determine the maximally-tolerated dose and acquire pilot efficacy data in patients with autosomal dominant polycystic kidney disease (ADPKD).

Study identification

NCT ID
NCT00413777
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Enrollment
46 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Nov 30, 2005
Primary completion
May 31, 2010
Completion
May 31, 2010
Last update posted
Jul 1, 2017

2005 – 2010

United States locations

U.S. sites
11
U.S. states
10
U.S. cities
11
Facility City State ZIP Site status
University of Colorado Denver Colorado
Jacksonville Center for Clinical Research Jacksonville Florida
Emory University School of Medicine Atlanta Georgia
Univerisity of Kansas Medical Center Kansas City Kansas
Johns Hopkins School of Medicine Baltimore Maryland
Davita Clinical Research Minneapolis Minnesota
Mayo Medical Center Rochester Minnesota
Rogosin Institute New York New York
Northwest Renal Clinic Portland Oregon
Vanderbilt University Medical Center Nashville Tennessee
Nephrology Clinical Research Center at the University of Virginia Charlottesville Virginia

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00413777, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 1, 2017 · Synced Sep 2, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00413777 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →