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International, Multi-Centre, Study of One year, Open Label, Titrated Oral Tolvaptan Tablet Administration in Patients with Chronic Hyponatraemia: Extension to Studies 156-02-235 and 156-03-238 to assess One-year safety. - Salt Water Trial

International, Multi-Centre, Study of One year, Open Label, Titrated Oral Tolvaptan Tablet Administration in Patients with Chronic Hyponatraemia: Extension to Studies 156-02-235 and 156-03-238 to assess One-year safety. - Salt Water Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2004-000452-16-HU
Enrollment
400
Registered
2004-07-12
Start date
2004-08-02
Completion date
Unknown
Last updated
2012-04-18

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

Conditions

Ongoing hyponatraemia in euvolemic and hypervolemic states MedDRA version: 7 Level: 1.1 Classification code 10021036

Interventions

Product Name: Tolvaptan Product Code: OPC-41061 Pharmaceutical Form: Tablet Product Name: Tolvaptan Product Code: OPC-41061 Pharmaceutical Form: Tablet

Sponsors

Otsuka Maryland Research Institute
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Age greater than or equal to 18 years. 2. Ability to provide informed consent or assesnt. 3. Prior successful participation in a tolvaptan hyponatraemia trial with evidence of continued need or desire for therapy. 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 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. A current medical condition where long-term treatment with an qauaretic agent may present adn undue risk to the patient. 2. Hyponatraemia which is acute, reversible, artifactual or due to conditions not associated with vasopressin excess or likely to repond to aquaretic therapy. 3. Hyponatraemia due to reversible medical condition or therapy. 4. Conditions associated with an independent imminent risk of morbidity and mortality. 5. Conditions which confound the assessment of end points.

Design outcomes

Primary

MeasureTime frame
Secondary Objective: The efficay of tolvaptan will be measured. Study drug compliance, dosage adminsitered, serum levels and clinical laboratory ,easurements will be monitored and summarised.;Primary end point(s): Safety and long-term therapy will be assessed qualitatively and quantitavely using descriptive statistics of adverse events, vital signs (weight, HR and BP), and local electrocardiograms (baseline, post dose 8 hours, 1 day, 2 and 26 weeks and at end of study) and local clinical lab testing of critical electrolytes (sodium, chloride, potassium), glucose, renal function (serum creatinine, BUN/Blood nitrogen), liver functions (AST, ALT, total bilirubin). cell counts (RBC or haemoglobin/haematocrit, WBC, platelet) and coagulation parameters (PTT, PT and/or INR);Main Objective: To assess the safety of long-term tolvaptan use in patients previously enrolled in shorter-term Phase 3 studies and gather information on the natural history of hyponatraemia in the context of tolvaptan therapy and underlying disease states.

Countries

Czech Republic, Hungary, Italy, Spain

Outcome results

None listed

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