Residual Renal Function Preservation in Peritoneal Dialysis Patients

July 31, 2014 updated by: Hong Liu, Second Xiangya Hospital of Central South University

The Effects of Losartan and Spironolactone on Residual Renal Function Preservation in Peritoneal Dialysis Patients

Aldosterone blockade is useful in preserving residual renal function in patients on PD.The long term efficacy of dual blockade of the RAAS is better than monotherapy.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Residual renal function has been proven to contribute to improved survival and quality of life of dialysis patients. It is now recognized as an important factor in the prognosis of PD.The RAAS system is involved in the development of renal diseases. Angiotensin II and aldosterone are vital in this process. The beneficial effect of angiotensin-converting enzyme inhibitor or angiotensin receptor blocker on residual renal function has been demonstrated in peritoneal dialysis patients. Unfortunately, neither ACE inhibition nor angiotensin receptor blocker fully supprsses aldosterone production. Now much focus has been placed on aldosterone antagonist.

Study Type

Interventional

Enrollment (Anticipated)

96

Phase

  • Not Applicable

Contacts and Locations

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

Study Contact

Study Locations

  • China
    • Hunan
      • Changsha, Hunan, China, 410000
        • Recruiting
        • Contact:
        • Principal Investigator:
          • Hong Liu, MD,phD

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:

  • Patients who having been on PD continuously for one month, urine volume>600 ml/d, residual renal function>2ml/min/1.73m2, blood pressure>120/70mmHg, serum potassium levels<5.5mmol/l, stable clinical condition.

Exclusion Criteria:

  • Patients with infectious systemic disease, peritonitis during the preceding 1 month, who had taken ACEI/ARBs in the 3 preceding months, spirolactone in the 2 preceding weeks, intolerance to ACEI/ARBs, CHF, MI, malignant hypertension and stroke within the preceding 6 months.

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Losartan
Losartan is taken orally 100mg/d
Drug: Losartan
Experimental: spirolactone
spirolactone is taken orally 20mg/d
Drug: spirolactone
Experimental: losartan in combination with spirolactone
Losartan is taken orally 100mg/d and spirolactone is taken orally 20mg/d
Drug: Losartan
Drug: spirolactone
Sham Comparator: blank control
patients with antihypertensives besides ACEI/ARBs and spirolactone.
Other: blank control

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
residual renal function of peritoneal dialysis patients
Time Frame: From date of randomization until the date of dropping out of the study or death from any cause, whichever came first, assessed up to 12 months.
From date of randomization until the date of dropping out of the study or death from any cause, whichever came first, assessed up to 12 months.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
peritoneal membrane function
Time Frame: From date of randomization until the date of dropping out of the study or death from any cause, whichever came first, assessed up to 12 months.
peritoneal membrane function is measured by peritoneal equilibration test to test the type of peritoneal transport. Briefly, a standard 4-hour dwell period was used (first exchange of the day), using a 2.5% glucose concentration 2-L volume exchange. The patient used their usual overnight dialysis regimen, and both the overnight and test drainage volumes were measured.The dialysate:plasma ratio of creatinine at the completion of the 4-hour dwell period (D/Pcreat) was used as the estimate of low-molecular-weight solute transport.
From date of randomization until the date of dropping out of the study or death from any cause, whichever came first, assessed up to 12 months.

Collaborators and Investigators

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

Sponsor

Second Xiangya Hospital of Central South University

Collaborators

Baxter Healthcare Corporation

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.

General Publications

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

November 1, 2013

Primary Completion (Anticipated)

December 1, 2015

Study Completion (Anticipated)

December 1, 2015

Study Registration Dates

First Submitted

July 12, 2014

First Submitted That Met QC Criteria

July 14, 2014

First Posted (Estimate)

July 15, 2014

Study Record Updates

Last Update Posted (Estimate)

August 1, 2014

Last Update Submitted That Met QC Criteria

July 31, 2014

Last Verified

July 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CHN-RENAL-IIS-2013-029

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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