Safety and Efficacy of SR121463B in Patients With Syndrome of Inappropriate Antidiuretic Hormone Secretion (SIADH Safety)

January 19, 2009 updated by: Sanofi

An Open-Label, Multicenter Study Evaluating the Long-Term Safety and Efficacy of SR121463B in Patients With Syndrome of Inappropriate Antidiuretic Hormone Secretion

To determine the long-term safety and tolerability of SR121463B in patients with syndrome of inappropriate antidiuretic secretion (SIADH). To assess the long-term efficacy of SR121463B in maintaining normal levels of serum sodium in patients with SIADH.

Long term safety is evaluated further in an open label extension study with flexible doses of satavaptan.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

57

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Australia
      • Macquarie Park, Australia
        • Sanofi-Aventis Administrative Office
  • Belgium
      • Diegem, Belgium
        • Sanofi-Aventis Administrative Office
  • Brazil
      • Sao Paulo, Brazil
        • Sanofi-Aventis Administrative Office
  • Canada
      • Laval, Canada
        • sanofi-aventis Canada
  • France
      • Paris, France
        • Sanofi-Aventis Administrative Office
  • Germany
      • Berlin, Germany
        • Sanofi-Aventis Administrative Office
  • Hong Kong
      • Causeway Bay, Hong Kong
        • Sanofi-Aventis Administrative Office
  • Hungary
      • Budapest, Hungary
        • Sanofi-Aventis Administrative Office
  • Russian Federation
      • Moscow, Russian Federation
        • Sanofi-Aventis Administrative Office
  • Switzerland
      • Geneva, Switzerland
        • Sanofi-Aventis Administrative Office
  • United States
    • New Jersey
      • Bridgewater, New Jersey, United States, 08807
        • Sanofi-Aventis Administrative Office

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female patients aged 18 years and higher.
  • SIADH (the diagnosis of SIADH is based on several criteria including true serum hypoosmolality, inappropriate urinary osmolality, clinical euvolemia, elevated urinary sodium excretion while on normal salt and water intake, and normal renal, adrenal, and thyroid functions: drug induced SIADH will be limited to carbamazepine or derivatives and antidepressants in patients in whom these drugs cannot be discontinued or easily replaced by other drugs)
  • Serum sodium between 115 and 132 mmol/L (at least two consecutive serum sodium levels of at least 24 hours apart, from Day -6 to Day -1); for sodium levels between 125 and 132 mmol/L, the spontaneous serum sodium increase between the two assessments on Day -1 should be < 4 mmol/L
  • Urinary osmolality >200mOsm/kg H2O
  • Urinary sodium > 30 mmol/L

Exclusion Criteria:

  • Patients with acute postoperative SIADH
  • Presence of dilutional hyponatremia in hypervolemic states such as congestive heart failure and liver disease with ascites
  • Presence of signs of hypovolemia (e.g., orthostatic hypotension, increased serum urea nitrogen, increased serum albumin, increased hematocrit, …)
  • Administration of other V2 receptor antagonists or demeclocycline or lithium within one month, thiazides diuretics or spironolactone within 15 days, and urea or loop diuretics within two days prior to study drug administration
  • Patients with known treated or untreated adrenal deficiency
  • Presence of untreated hypothyroidism
  • Presence of uncontrolled diabetes with fasting glycemia > 200 mg/dL (> 11.09 mmol/L)
  • Presence of clinical and/or electrocardiographical signs of acute myocardial infarction or acute ischemia, or any other clinically significant abnormality according to the Investigator on a 12 lead ECG recording
  • Administration of inducers of CYP3A4 (phenytoin, rifampin, Saint John's Wort) or potent and moderate inhibitor so CYP3A4within two weeks prior to study drug administration
  • Inadequate hematological, renal and hepatic functions; hemoglobin (Hb) < 9 g/dL, neutrophils < 1,500/mm3, platelets <100,00/mm3, serum creatine >175 µmol/L (or clearance of creatine <30mL/min for where Ethics Committees require this parameter), ALT and /or AST >2x upper limit of normal
  • QTcB > 500 ms
  • Serum potassium > 5 mmol/L

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Safety : Physical examination, vital signs, adverse events, electrocardiogram, hematology, serum chemistry

Secondary Outcome Measures

Outcome Measure
Serum sodium

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sanofi

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2005

Primary Completion (ACTUAL)

August 1, 2007

Study Completion (ACTUAL)

August 1, 2007

Study Registration Dates

First Submitted

December 12, 2005

First Submitted That Met QC Criteria

December 12, 2005

First Posted (ESTIMATE)

December 13, 2005

Study Record Updates

Last Update Posted (ESTIMATE)

January 21, 2009

Last Update Submitted That Met QC Criteria

January 19, 2009

Last Verified

January 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • SFY5904
  • LTS10208
  • EudraCT : 2004-005239-35

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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