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NephropathyCASENCT01623661

Effect of Hypertonic Sodium Chloride on Urinary Biomarkers in Healthy Subjects and Patients With Chronic Kidney Disease

A study testing hypertonic saline in people with Nephropathy, run by Regional Hospital Holstebro at 1 site in Denmark.

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 with chronic kidney disease (CKD) have a defect in the tubular reabsorption of sodium, and therefore the ability to excrete a sodium load is diminished compared to healthy subjects. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Nephropathy
What is being tested?
hypertonic saline
Could I receive a placebo?
No, everyone receives an active treatment
How many people
47 participants
Where
1 siteDenmark
Study dates
Dec 2011to Jun 2013
Phase
Interventional
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 to 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • healthy subjects
  • healthy males and females
  • age 18-70
  • BMI range 18,5-30,0 kg/m2
  • Patients with CKD
  • age 18-70
  • eGFR 15-60 ml/min
  • BMI range 18.5 - 30.0 kg/m2

Who cannot join

  • healthy subjects
  • hypertension (ie ambulatory BP >130 mmHg systolic or/and >80 mmHg diastolic)
  • history or clinical significant signs of heart, lung, liver, kidney, endocrine, brain or neoplastic disease.
  • alcohol abuse
  • drug abuse
  • smoking
Show all 17Show fewer
  • pregnancy or nursing
  • blood donation within a month prior to examination
  • Medical treatment apart from oral contraception
  • Patients with chronic kidney disease
  • clinical significant signs of heart, lung, liver, endocrine, brain or neoplastic disease.
  • diabetes
  • immunosuppressive medications
  • smoking
  • alcohol abuse
  • drug abuse
  • pregnancy or nursing

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Medical Research

    Holstebro, 7500

Other trials in Denmark

About this study

Official title: Effect of Intravenous Sodium Chloride on Urinary Biomarkers for Measurement of Sodium- and Water Channel Activity in the Nephron in Healthy Subject an Patients With Chronic Kidney Disease. A Case Control Study

Patients with chronic kidney disease (CKD) have a defect in the tubular reabsorption of sodium, and therefore the ability to excrete a sodium load is diminished compared to healthy subjects.

Urinary biomarkers reflects the water- and sodium-channel activity in the kidney and may be measured after an infusion with hypertonic saline in CKD patients and healthy subjects.

Read the detailed description

The fractional sodium excretion is elevated as high as 10-20% In patients with chronic kidney disease (CKD) Changes in the sodium intake results in a slower expansion and/or reduction in extracellular fluid in CKD patients.

Urinary biomarkers reflects the kidneys transport of sodium and water in the nephron.

Changes in the sodium-and water channel activity is induced by intervention with hypertonic Saline (3.0%) The change in sodium-and water channel activity is followed by change in extracellular and intracellular fluid compartments and the plasma concentration of vasoactive hormones.

The purpose of this study is to investigate the changes in urinary biomarkers (u-NKCC2, u-ENaC-gamma and u-AQP2), the activity of the sodium-and water channels, the extra- and intracellular fluid compartments and the plasma concentration of Vasoactive hormones in patients with CKD and in healthy subjects.

Subjects and patients are examined during one examination day. Four days prior to the examination day the subjects consume a standardized diet based on the amount of sodium and calories. On the examination day the subjects receive an infusion with hypertonic saline.

Renal function is measured by renal clearance of 51Cr-EDTA. Urinary biomarkers (u-NKCC2, u-ENaC-gamma and u-AQP2) are measured to evaluate the activity of sodium channels in the nephron and changes in fluid compartments are measured by body composition monitor.

Conditions
Nephropathy
Being tested
hypertonic saline
Keywords
Nephrology, chronic kidney disease, sodium-channels, water-channels, BCM
Medical subject headings
Kidney Diseases, Renal Insufficiency, Chronic

What participants receive

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

  • hypertonic salineOther

    Also called hypertonic NaCl

    hypertonic saline 3.0 % (7 ml/kg)

Study groups in NCT01623661
Study groupRoleWhat they receive
hypertonic salineOtherhypertonic saline 3.0% (7 ml/kg)
Receives: Other: hypertonic saline

What is being measured

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

  1. urinary biomarkers

    Urinary epithelial sodium channels (ENaC), Sodium-potassium-2chloride transporters (NKCC) and aquaporin2 channels (AQP2) before, during and after fluid infusion

    Measured: one day

Secondary outcomes (2)
  1. vaso active hormones

    plasma concentrations of: renin, Angiotensin II, aldosterone, Vasopressin, atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP)

    Measured: one day

  2. extra-and intracellular volume

    measured by body composition monitor at baseline and after intervention

    Measured: 6 hours

Timeline

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

  1. First posted20 Jun 2012 (estimated)
  2. Study startDec 2011
  3. Primary completionApr 2013
  4. Study completionJun 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 N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
47 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01623661
Sponsor's protocol ID
EBP-JMJ-2012-2
Acronym
CASE
Status last verified
Mar 2014
First submitted
18 Jun 2012
Last updated
4 Mar 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Jensen JM, Mose FH, Kulik AE, Bech JN, Fenton RA, Pedersen EB. Abnormal urinary excretion of NKCC2 and AQP2 in response to hypertonic saline in chronic kidney disease: an intervention study in patients with chronic kidney disease and healthy controls. BMC Nephrol. 2014 Jun 26;15:101. doi: 10.1186/1471-2369-15-101.

    PubMed 24970686

Questions about this trial

What is this clinical trial studying?

A study testing hypertonic saline in people with Nephropathy, run by Regional Hospital Holstebro at 1 site in Denmark.

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 8 inclusion and 17 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 4 Mar 2014. 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 Denmark. 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.

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?

urinary biomarkers (time frame: one day). 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 NCT01623661, 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 4 Mar 2014.

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