DILIPO (DILutIonal HyPOnatremia)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00274326
Recruitment Status : Completed
First Posted : January 10, 2006
Last Update Posted : September 15, 2008
Information provided by:

Brief Summary:


  • To assess the efficacy of SR121463B in correcting hyponatremia in patients with dilutional hyponatremia other than SIADH or cirrhosis


  • To assess the long-term efficacy of SR121463B in maintaining normonatremia in these patients
  • To assess the safety and tolerability of SR121463B

Condition or disease Intervention/treatment Phase
Congestive Heart Failure Drug: SR121463B Phase 3

Detailed Description:
SR121463B is an orally effective non-peptide, potent, and highly selective V2 receptor antagonist causing free water elimination in animals and humans

Study Type : Interventional  (Clinical Trial)
Enrollment : 150 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: A Multicenter, Randomized, Placebo-Controlled, Double-Blind Trial Evaluating the Effect of a Vasopressin V2 Receptor Antagonist (SR121463B) on Serum Sodium in Patients With Dilutional Hyponatremia
Study Start Date : May 2005
Actual Primary Completion Date : July 2007
Actual Study Completion Date : July 2007

Primary Outcome Measures :
  1. EFFICACY:Serum Sodium
  2. SAFETY:Physical examination, vital signs, adverse events, electrocardiogram, hematology, serum chemistry
  3. PHARMACOKINETICS:Plasma SR121463B concentrations

Secondary Outcome Measures :
  1. Weight; EQ-5D and pharmaco-economic assessments

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Male or Female patients aged 18 higher
  • Dilutional Hyponatremia with serum sodium between 115 and 132 mmol/L
  • Ability to give written informed consent (the informed consent may be signed by a legally authorized representative if the patient is unable to sign)

Exclusion Criteria:

  • Presence of known or untreated adrenal insufficiency, SIADH or cirrhosis, or hyperthyroidism
  • Presence of signs of hypovolemia
  • Administration of other V2 receptor antagonists or demeclocycline or lithium within one month and urea within two days prior to study drug administration
  • Presence of uncontrolled diabetes with fasting glycemia ³ 200 mg/dL (³ 11.09 mmol/L)
  • Patients considered by the Investigator unsuitable candidates to receive an investigational drug (e.g., presence of any neurological symptoms that may worsen in five days, based on the judgment of the Investigator, or presence of any neurological symptoms for which the persistence of hyponatremia over several days may be deleterious)
  • Administration of inducers of CYP3A4 (phenobarbital, phenytoin, rifampin, Saint John's Wort) or potent and moderate inhibitors of CYP3A4 within two weeks prior to study drug administration
  • Presence or history of allergic reaction to SR121463B8
  • Previous study with SR121463B
  • Inadequate hematological, renal, and hepatic functions: hemoglobin (Hb) < 9 g/dL, neutrophils < 1,500/mm3, platelets < 100,000/mm3, serum creatinine > 175 mol/L (or clearance of creatinine < 30 mL/min for sites where Ethics Committees require this parameter), serum alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) > 2 x upper limit of normal (ULN)
  • QTCB 500 ³ ms
  • Positive pregnancy test and absence of medically approved contraceptive methods (e.g., surgical sterilization of more than one month duration, oral contraception or intrauterine device in combination with either diaphragm, condom, or spermicide) for females of childbearing potential
  • Pregnancy or breast-feeding

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00274326

United States, New Jersey
Sanofi-Aventis Administrative Office
Bridgewater, New Jersey, United States, 08807
Sanofi-Aventis Administrative Office
Buenos Aires, Argentina
Australia, New South Wales
sanofi-aventis Australia & New Zealand administrative office
Macquarie Park, New South Wales, Australia
Sanofi-Aventis Administrative Office
Diegem, Belgium
Sanofi-Aventis Administrative Office
Laval, Canada
Sanofi-Aventis Administrative Office
Santiago, Chile
Sanofi-Aventis Administrative Office
Horsholm, Denmark
Sanofi-Aventis Administrative Office
Athens, Greece
Sanofi-Aventis Administrative Office
Budapest, Hungary
Sanofi-Aventis Administrative Office
Natanya, Israel
Sanofi-Aventis Administrative Office
Warszawa, Poland
Sanofi-Aventis Administrative Office
Porto Salvo, Portugal
Sanofi-Aventis Administrative Office
Bucuresti, Romania
South Africa
Sanofi-Aventis Administrative Office
Midrand, South Africa
Sanofi-Aventis Administrative Office
Bromma, Sweden
Sponsors and Collaborators
Study Chair: Daniel Ter-Minassian, MD Sanofi

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number): Identifier: NCT00274326     History of Changes
Other Study ID Numbers: EFC5816
First Posted: January 10, 2006    Key Record Dates
Last Update Posted: September 15, 2008
Last Verified: September 2008

Keywords provided by Sanofi:

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases
Water-Electrolyte Imbalance
Metabolic Diseases
Antidiuretic Hormone Receptor Antagonists
Molecular Mechanisms of Pharmacological Action
Natriuretic Agents
Physiological Effects of Drugs