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Hyponatremia in the Elderly: Benefit From a Change in Drug Therapy? (NATRIPHAR)

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ClinicalTrials.gov Identifier: NCT01212211
Recruitment Status : Completed
First Posted : September 30, 2010
Last Update Posted : May 23, 2012
Sponsor:
Information provided by (Responsible Party):
University Hospital, Caen

Brief Summary:

Mild hyponatremia is the commonest electrolyte imbalance in the older population. Recently, association between hyponatremia and bone fractures in the ambulatory elderly has been shown.

Mild chronic hyponatremia is causing falls and lead to hospitalisation because of attention deficit.

Symptoms related to hyponatremia can be very subtle and difficult to detect clinically. Twenty elderly patients, retirement homes residents, with serum sodium < 135mEq/L will be included. They will be randomised. The physician will review the drug treatment of ten patients in coordination with the opinion of pharmacologists. Drug treatment for ten other patients wil remained unchanged during the three months of inclusion.

Useful elements of the medical records of patients randomized to the experimental arm will be forwarded to the Pharmacovigilance Regional Center for opinion pharmacologist. The notice, subject to the attention of physician of retirement homes, give rise to a therapeutic approach towards the patient. It will be followed by weekly monitoring of serum sodium for 4 weeks to evaluate the impact of the intervention. Thus, the effectiveness of medical intervention will be evaluated by an objective biological criteria: serum sodium in the fourth week. Secondary endpoints will evaluate the duration of normalization of serum sodium and check the interest of correcting hyponatremia to improve postural capacities and eventually reduce the number of falls in the medium term (three months).


Condition or disease Intervention/treatment Phase
Hyponatremia Other: change in drug therapy Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 18 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Hyponatremia in the Elderly: Benefit From a Change in Drug Therapy?
Study Start Date : December 2010
Actual Primary Completion Date : January 2011
Actual Study Completion Date : May 2012

Arm Intervention/treatment
Experimental: change in drug therapy
Change in drug therapy with the help of the opinion of pharmacologists : the physician would review the drug treatment of ten residents in coordination with the opinion of pharmacologists
Other: change in drug therapy
Change in drug therapy with the help of the opinion of pharmacologists : the physician would review the drug treatment of ten residents in coordination with the opinion of pharmacologists

No Intervention: reference
drug treatment of ten patients will remain unchanged during the three months of inclusion



Primary Outcome Measures :
  1. Evaluate the benefit of a change of drug therapy following a review pharmacologist on the increase in serum sodium in elderly [ Time Frame: Fourth week ]
    Normalization serum sodium between S0 and S4 (4 weeks after medical intervention)


Secondary Outcome Measures :
  1. Normalization of serum sodium-Evaluate the impact on the deficit postural S4-Evaluate the impact on the occurrence of falls [ Time Frame: three months ]
    Changes in serum sodium weekly S1, S2, S3 - Evolution of the score evaluation of postural control: the Timed Up and Go test (TUG) between therapeutic intervention and S4-comparison of the number of falls between the period three months before and three months after surgery Medical Decision to three months whether to maintain the drug therapy changed



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Ages Eligible for Study:   65 Years and older   (Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patient over 65 years Resident of dependent elderly
  • Plasma sodium <135 mmol / l less than a week, confirming earlier hyponatremia within a week to three month agreement given after patient information

Exclusion Criteria:

  • Venous system does not allow sampling - Patient not taking medication-Dementia

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 ClinicalTrials.gov identifier (NCT number): NCT01212211


Locations
France
Centre Hospitalier Carentan
Carentan, France, 50500
Sponsors and Collaborators
University Hospital, Caen
Investigators
Principal Investigator: Blandine De la Gastine, MD University Hospital, Caen

Responsible Party: University Hospital, Caen
ClinicalTrials.gov Identifier: NCT01212211     History of Changes
Other Study ID Numbers: 2010-A00778-31
First Posted: September 30, 2010    Key Record Dates
Last Update Posted: May 23, 2012
Last Verified: May 2012

Keywords provided by University Hospital, Caen:
Hyponatremia; Sodium level
Falls
Gait
elderly

Additional relevant MeSH terms:
Hyponatremia
Water-Electrolyte Imbalance
Metabolic Diseases