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HemodialysisPhase 3NCT00724633

Effect of Lowering the Dialysate Sodium on Blood Pressure in Hemodialysis Patients

A Phase 3 study testing Lowering the dialysate sodium in people with Hemodialysis, run by London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Patients currently receiving hemodialysis will be randomized to receive 1 of 3 dialysate sodium prescriptions. The effects on blood pressure, interdialytic weight gain, thirst, and intradialytic symptoms will be assessed. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Hemodialysis
What is being tested?
Lowering the dialysate sodium
Could I receive a placebo?
No, everyone receives an active treatment
How many people
35 participants
Where
1 siteCanada
Study dates
1 Nov 2011to 31 Jul 2017
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • patients on 3 times weekly hemodialysis of at least 3 months
  • elevated average ambulatory blood pressures
  • current dialysate sodium prescription 140mEq/L
  • average pre-dialysis serum sodium <140mEq/L

Who cannot join

  • frequent intradialytic hypotension
  • estimated life expectancy <1 year
  • non-adherence to dialysis prescription
  • pregnancy
  • inability or unwillingness to complete study measures

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • London Health Sciences Center

    London, Ontario, N6A 4G5

Other trials in Canada

About this study

Official title: Effect of Lowering the Dialysate Sodium on Blood Pressure in Hemodialysis Patients: a Randomized Controlled Trial.

Patients currently receiving hemodialysis will be randomized to receive 1 of 3 dialysate sodium prescriptions. The effects on blood pressure, interdialytic weight gain, thirst, and intradialytic symptoms will be assessed.

Conditions
Hemodialysis
Being tested
Lowering the dialysate sodium
Keywords
dialysate, sodium, hemodialysis, blood pressure, thirst, intradialytic symptoms, interdialytic weight gain, extracellular fluid balance, mechanisms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Lowering the dialysate sodiumOther

    Please see above

Study groups in NCT00724633
Study groupRoleWhat they receive
1Otherstandard dialysate Na 140 mEq/L
Receives: Other: Lowering the dialysate sodium
2Active comparatordialysate sodium equal to patient's predialysis serum Na
Receives: Other: Lowering the dialysate sodium
3Active comparatordialysate sodium lower than patient's predialysis plasma sodium
Receives: Other: Lowering the dialysate sodium

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Ambulatory blood pressure

    Ambulatory blood pressure to be taken over 24 hours at 4 week intervals throughout the study

    Measured: 3 months

Secondary outcomes (4)
  1. thirst

    Measured: 3 months

  2. QOL Scores (KDQOL, mins to recovery)

    Measured: 3 months

  3. intradialytic hypotension rate, intradialytic symptoms

    Measured: 3 months

  4. mechanistic outcomes: interdialytic weight gain, extracellular fluid water, sodium ionic mass balance

    Measured: 3 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jul 2008 (estimated)
  2. Study start1 Nov 2011
  3. Primary completion6 Jun 2017
  4. Study completion31 Jul 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00724633
Sponsor's protocol ID
R-08-252
Other IDs
15153
Status last verified
Nov 2017
First submitted
25 Jul 2008
Last updated
6 Nov 2017
Results posted
No
Data monitoring committee
Yes

Publications

  • Marshall MR, Wang MY, Vandal AC, Dunlop JL. Low dialysate sodium levels for chronic haemodialysis. Cochrane Database Syst Rev. 2024 Nov 5;11(11):CD011204. doi: 10.1002/14651858.CD011204.pub3.

    PubMed 39498822

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Lowering the dialysate sodium in people with Hemodialysis, run by London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 Nov 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Ambulatory blood pressure (time frame: 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00724633, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 Nov 2017.

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