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Chronic Kidney DiseasePhase 3WITNCT01753466

The Water Intake Trial: Pilot Phase

A Phase 3 study testing Hydration in people with Chronic Kidney Disease, 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

The investigators are conducting a six-week randomized controlled pilot trial to assess the feasibility and safety of increased water intake in patients with chronic kidney disease.The investigators will study 30 patients (age 30 to 80 with an estimated glomerular filtration rate between 30 and 60 ml/min/1.73m2 and… Read more about this study

Who is it for?
Ages 30 to 80 years
Conditions the study is for
Chronic Kidney Disease
What is being tested?
Hydration
Could I receive a placebo?
No, everyone receives an active treatment
How many people
33 participants
Where
1 siteCanada
Study dates
Oct 2012to Apr 2013
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 30 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age 30-80 years
  • Able to provide informed consent and willing to complete follow-up visits.
  • Estimated glomerular filtration rate between 30 and 60 ml/min/1.73m2
  • Microalbuminuria [albumin to creatinine ratio >2.8 mg/mmol (if female) or >2.0 mg/mmol if male)]

Who cannot join

  • Self-reported fluid intake >10 cups/day or 24-hr urine volume >3L.
  • Enrolled in another randomized controlled trial that could influence the intervention, outcomes or data collection of this trial (or previously enrolled in this trial)
  • Received one or more dialysis treatments in the past month
  • Kidney transplant recipient (or on waiting list)
  • Pregnant or breastfeeding
  • History of kidney stones in past 5 years
Show all 12Show fewer
  • Less than two years life expectancy
  • Serum sodium <130 mEq/L without suitable explanation
  • Serum calcium >2.6 mmol/L without suitable explanation
  • Currently taking hydrochlorothiazide >25 mg/d, indapamide >1.25 mg/d, furosemide >40 mg, or metolazone >2.5 mg/d
  • Currently taking lithium
  • Patient is under fluid restriction (< 1.5 L a day or more) for kidney disease, heart failure, or liver disease, AND meets any of the following criteria: i) end stage of the disease (heart left ventricular ejection fraction <40%, NYHA class 3 or 4, or end stage cirrhosis) or ii) hospitalization secondary to heart failure, ascites and/or anasarca

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • London Health Sciences Centre

    London, Ontario, N6A 4G5

Other trials in Canada

About this study

The investigators are conducting a six-week randomized controlled pilot trial to assess the feasibility and safety of increased water intake in patients with chronic kidney disease.The investigators will study 30 patients (age 30 to 80 with an estimated glomerular filtration rate between 30 and 60 ml/min/1.73m2 and microalbuminuria [albumin to creatinine ratio >2.8 mg/mmol (if female) or >2.0 mg/mmol if male)].The investigators will randomize patients (in a 2:1 ratio) to a fluid-intervention group or control group. Participants who are randomized to the hydration-intervention group will be asked to consume 1.0 to 1.5 L water per day (depending on sex and weight) in addition to usual consumed beverages, for 6 weeks. Participants in the control group will be advised to consume their usual amount of fluid.

The investigators hypothesize that patients will be able to increase and maintain a higher fluid intake with stable blood chemistry, particularly serum sodium.

Being tested
Hydration
Medical subject headings
Renal Insufficiency, Chronic

What participants receive

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

  • HydrationDietary supplement

Study groups in NCT01753466
Study groupRoleWhat they receive
HydrationExperimentalParticipants who are randomized to the hydration-intervention group will be asked to consume 1.0 to 1.5 L water per day, depending on sex and weight, in addition to usual consumed beverages, for 6 weeks
Receives: Dietary Supplement: Hydration
ControlNo interventionNot described

What is being measured

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

  1. 24-hour urine volume

    Change in 24-hour urine volume between baseline and six weeks

    Measured: 6 weeks (baseline and six weeks)

Timeline

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

  1. First posted20 Dec 2012 (estimated)
  2. Study startOct 2012
  3. Primary completionApr 2013
  4. Study completionApr 2013

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
None (open label)
Enrolment
33 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01753466
Sponsor's protocol ID
EAU-6607-GD
Acronym
WIT
Status last verified
Apr 2013
First submitted
9 Nov 2012
Last updated
22 Apr 2013
Results posted
No
Data monitoring committee
No

Publications

  • Sontrop JM, Huang SH, Garg AX, Moist L, House AA, Gallo K, Clark WF. Effect of increased water intake on plasma copeptin in patients with chronic kidney disease: results from a pilot randomised controlled trial. BMJ Open. 2015 Nov 24;5(11):e008634. doi: 10.1136/bmjopen-2015-008634.

    PubMed 26603245
  • Clark WF, Sontrop JM, Huang SH, Gallo K, Moist L, House AA, Weir MA, Garg AX. The chronic kidney disease Water Intake Trial (WIT): results from the pilot randomised controlled trial. BMJ Open. 2013 Dec 20;3(12):e003666. doi: 10.1136/bmjopen-2013-003666.

    PubMed 24362012

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Hydration in people with Chronic Kidney Disease, 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 12 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 22 Apr 2013. 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?

24-hour urine volume (time frame: 6 weeks (baseline and six weeks)). 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 NCT01753466, which also lists 2 linked publications.

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 22 Apr 2013.

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The Water Intake Trial: Pilot Phase (NCT01753466) | AzTrials