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A Multinational Trial to Collect Blood Samples to Explore Potential Genetic/Biomarkers Related to Increased Risk of Liver Injury in Adult Subjects from Prior Tolvaptan Clinical Trials for Autosomal Dominant Polycystic Kidney Disease (ADPKD)

A Multinational Trial to Collect Blood Samples to Explore Potential Genetic/Biomarkers Related to Increased Risk of Liver Injury in Adult Subjects from Prior Tolvaptan Clinical Trials for Autosomal Dominant Polycystic Kidney Disease (ADPKD)

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2014-001501-41-BE
Enrollment
20
Registered
2015-12-17
Start date
2016-01-16
Completion date
Unknown
Last updated
2022-08-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autosomal Dominant Polycystic Kidney Disease (ADPKD), Patients with Increased Risk of Liver Injury

Interventions

Trade Name: Jinarc Pharmaceutical Form: Tablet INN or Proposed INN: Tolvaptan CAS Number: 150683-30-0 Current Sponsor code: Tolvaptan Concentration unit: mg milligram(s) Concentration type: equal Conc

Sponsors

Otsuka Pharmaceutical Development & Commercialization, Inc.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Participated in tolvaptan clinical Trial 156-04-251, 156-09-290, or another tolvaptan ADPKD clinical trial. 2. Blood and/or DNA sample is not available. 3. In one of the above studies experienced either: • A serious or non-serious hepatic or liver function test abnormality AE that led to discontinuation of trial drug and was reported by the investigator; or • Liver enzyme elevations as listed below, even if they did not occur simultaneously and no AE was reported: - To qualify for blood collection for DNA extraction, either: ? • ALT or AST of at least 2 × ULN or ? • BT of at least 2 × ULN - And/or to qualify for blood collection for PBMC isolation, either: • Met Hy’s Law criteria (> 3 × ULN for ALT and > 2 × ULN for total bilirubin) or ? • Maximum ALT > 7 × ULN. Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 20 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Unwilling or unable to provide a blood sample.

Design outcomes

Primary

MeasureTime frame
Main Objective: Obtain blood samples from subjects in prior tolvaptan ADPKD clinical trials who experienced qualifying elevated liver enzymes for subsequent identification of potential genetic markers and biomarkers (collectively genetic/biomarkers) for increased risk of liver injury.;Secondary Objective: not applicable;Primary end point(s): The number of subjects who provide a blood sample out of the number of subjects eligible to provide a sample.;Timepoint(s) of evaluation of this end point: 1 year of trial initiation.

Secondary

MeasureTime frame
Secondary end point(s): Not applicable.;Timepoint(s) of evaluation of this end point: Not applicable.

Countries

Argentina, Belgium, France, Germany, Japan, United States

Contacts

Public ContactLaurie Debuque

Otsuka Pharmaceutical Development & Commercialization, Inc.

Laurie.Debuque@otsuka-us.com+16095246894

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026