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Saving Residual Renal Function Among Haemodialysis Patients Receiving Irbesartan (SAFIR)
This study is not yet open for participant recruitment.
Verified by University of Aarhus, November 2008
Sponsored by: University of Aarhus
Information provided by: University of Aarhus
ClinicalTrials.gov Identifier: NCT00791830
  Purpose

Angiontensin II receptor blockers (ARB) are known to preserve kidney function among patients with kidney diseases and reduced renal function, but not among haemodialysis patients.

Haemodialysis patients often lose residual renal function after initiating dialysis leading to worsened quality of life, increased morbidity and mortality.

In this study an ARB is investigated in a double blind, randomised, parallel group, placebo controlled manner to see, if this ARB can save residual renal function among haemodialysis patients. Potential cardiovascular benefits of the treatment are also adressed.


Condition Intervention Phase
Kidney Failure, Chronic
Drug: Irbesartan
Drug: Placebo matching irbesartan 150 mg
Phase III

MedlinePlus related topics: Dialysis Kidney Failure
Drug Information available for: Irbesartan Angiotensin II Angiotensin II, ile(5)-
U.S. FDA Resources
Study Type: Interventional
Study Design: Prevention, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Placebo Control, Parallel Assignment, Safety/Efficacy Study
Official Title: Saving Residual Renal Function Among Haemodialysis Patients Receiving Irbesartan - a Double Blind Randomised Study

Further study details as provided by University of Aarhus:

Primary Outcome Measures:
  • Decrease in loss of residual kidney function. [ Time Frame: 3, 6, 9 and 12 months ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • Cardio-vascular outcome assessed by applanation tonometry, echocardiography, Transonic measurements of cardiac output and markers in blood. [ Time Frame: 1 year ] [ Designated as safety issue: Yes ]
  • Progression to anuria [ Time Frame: 3, 6, 9 and 12 months ] [ Designated as safety issue: Yes ]
  • Quality of life assessed by a questionnaire KDQOL-SF [ Time Frame: 1 year ] [ Designated as safety issue: No ]

Estimated Enrollment: 80
Study Start Date: January 2009
Estimated Study Completion Date: December 2011
Estimated Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Irbesartan: Active Comparator Drug: Irbesartan
Tablets, 300 mg * 1 daily, 1 year
Placebo: Placebo Comparator Drug: Placebo matching irbesartan 150 mg
Tablets, 300 mg * 1 daily, 1 year

Detailed Description:

Haemodialysis patients often lose residual renal function rather quickly after initiation of dialysis - average loss is 30 % per year. Loss of residual kidney function leads to deteriorating quality of life, more morbidity and a higher mortality. Many causes to this has been identified, but no one has - to my knowledge - adressed saving of residual renal function among haemodialysis patients so far.

Hypothesis: Irbesartan can reduce loss of residual kidney function among haemodialysis patients and left ventricular hypertrophy and arterial stiffness is less pronounced after 1 year of treatment.

Methods: 80 patients are randomised to receive either irbesartan (ARB) or placebo for 1 year. Residual renal function will be estimated before and one-two weeks after initiating project medicine, in order to estimate the acute effect of ARB on residual renal function in this study population. Thereafter, GFR and urine volume will be determined after 3, 6, 9 and 12 months giving a regression line for each patient. 6 dialysis units will be recruiting patients.

Investigations:

  • creatinine-urea-clearance by 24h urine collection
  • applanation tonometry
  • cardiac output
  • echocardiography
  • QoL questionnaire
  • endocrinological and cardiovascular markers in blood and urine

Perspectives: It is well-known that ceased urine production has a tremendous negative effect on the quality of life of haemodialysis patients. Lately it was shown that residual renal function has greater impact than dialysis dose on morbidity as well as mortality. Among peritoneal dialysis patients in Asia an ACEI or an ARB saved residual renal function, but preservation of renal function has not been addressed in haemodialysis patients, and ACEI or ARB are only prescribed to roughly 15 % of these.

If this study confirms our hypothesis the growing population of haemodialysis patients should be offered irbesartan.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Haemodialysis patient
  • Dialysis treatment for maximum 6 months
  • > 18 years old
  • informed consent
  • eGFR > 5 ml/min/1.73 m2 assessed by 24 h urine collection and creatinine/urea clearance
  • contraception if fertile woman

Exclusion Criteria:

  • Systolic blood pressure < 110 mm Hg
  • Able to comprehend the aims of the project and follow instructions
  • Allergy to irbesartan/ACE-inhibitors/ARBs
  • Myocardial infarction or unstable angina pectoris during the last 3 months
  • Ejection fraction < 30 %
  • Pregnancy
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00791830

Contacts
Contact: Krista D Kjærgaard, MD +45 22 32 43 21 krista@ki.au.dk
Contact: Jens Kristian D Jensen, MD, PhD + 45 89 49 57 77 jensdam@dadlnet.dk

Locations
Denmark
Department of Nephrology, Aarhus University Hospital, Skejby
Aarhus N, Denmark, 8200
Haemodialysis unit, Randers Hospital
Randers, Denmark, 8900
Haemodialysis unit, Horsens Hospital
Horsens, Denmark, 8700
Department of Medicine M, Viborg Hospital
Viborg, Denmark, 8800
Department of Nephrology, Aarhus University, Aalborg
Aalborg, Denmark, 9000
Department of Medicine, Fredericia Hospital
Fredericia, Denmark, 7000
Sponsors and Collaborators
University of Aarhus
Investigators
Study Director: Bente Jespersen, MD, DMSci Department of Nephrology, Aarhus University Hospital, Skejby, Denmark
Study Chair: Erik Sloth, MD, DMSci Department of Anaesthesiology and Intensive Care, Aarhus University Hospital, Skejby, Denmark
Study Director: Jens Kristian D Jensen, MD, PhD Department of Nephrology, Aarhus University Hospital, Skejby, Denmark
Principal Investigator: Krista D Kjærgaard, MD Department of Nephrology, Aarhus University Hospital, Skejby, Denmark
  More Information

Responsible Party: Aarhus University Hospital, Skejby ( Krista Dybtved Kjærgaard, MD )
Study ID Numbers: EudraCT no: 2008-001267-11
Study First Received: November 14, 2008
Last Updated: November 14, 2008
ClinicalTrials.gov Identifier: NCT00791830  
Health Authority: Denmark: Danish Medicines Agency;   Denmark: Ethics Committee;   Denmark: Danish Dataprotection Agency;   Denmark: GCP (Good Clinical Practice) units in Aarhus and Odense

Keywords provided by University of Aarhus:
Residual renal function
Haemodialysis
Applanation tonometry
Cardiac output
Quality of life
Angiotensin II Type 1 Receptor Blockers

Study placed in the following topic categories:
Renal Insufficiency
Urologic Diseases
Renal Insufficiency, Chronic
Irbesartan
Kidney Failure, Chronic
Quality of Life
Kidney Diseases
Angiotensin II
Kidney Failure

Additional relevant MeSH terms:
Angiotensin II Type 1 Receptor Blockers
Molecular Mechanisms of Pharmacological Action
Therapeutic Uses
Cardiovascular Agents
Antihypertensive Agents
Pharmacologic Actions

ClinicalTrials.gov processed this record on January 16, 2009