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Efficacy of SR121463B in Patients With Syndrome of Inappropriate Antidiuretic Hormone Secretion

A Randomized, Double-Blind, Placebo-Controlled, Parallel-Group, Dose-Escalation, Multicenter Study Evaluating the Efficacy and Safety of SR121463B in Patients With Syndrome of Inappropriate Antidiuretic Hormone Secretion.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00032734
Enrollment
35
Registered
2002-04-01
Start date
2001-06-30
Completion date
2003-07-31
Last updated
2008-06-17

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

Conditions

Hyponatremia, Syndrome of Inappropriate ADH (SIADH) Secretion

Keywords

Low Blood Sodium (Hyponatremia), SIADH, Inappropriate ADH Syndrome

Brief summary

The study is designed to assess the efficacy of an investigational drug called SR121463B (vasopressin receptor antagonist) in the treatment of low levels of sodium in the blood associated with the Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH). This double blind period study is followed by 2 open label extension studies with flexible doses of satavaptan.

Detailed description

This is a multicenter worldwide study with 32 participating men and women aimed to figure out whether SR121463B is safe and effective in correcting low levels of sodium in blood in subjects with SIADH. The participation in the study lasts up to 34 days. After screening, during the first part of the study (maximum 5 days), the subjects receive either capsules of SR121463B or a matching placebo. During the second part of the study (23 days), subjects receive either capsules of SR121463B or no treatment. The subjects will be assessed by physical examinations, electrocardiograms, blood samplings, and urine collections. Women of childbearing potential must have an approved method of contraception.

Interventions

Sponsors

Sanofi
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

SIADH of any origin

Design outcomes

Primary

MeasureTime frame
serum sodium concentration

Secondary

MeasureTime frame
safety assessment

Countries

Belgium, France, Germany, Hungary

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026