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Sympathetic Activity in Patients With End-stage Renal Disease on Peritoneal Dialysis (SAPD)

11 maart 2021 bijgewerkt door: Dr. Marcel Ruzicka, Ottawa Hospital Research Institute

Effects of Non-Glucose-Based Peritoneal Dialysis Solution "EXTRANEAL" on Changes in Leptin Levels and Sympathetic Activity Induced by Conventional Glucose-Based Dialysate "DIANEAL" in Patients on Peritoneal Dialysis

Hypothesis:

Patients starting peritoneal dialysis with a glucose-based regimen have high sympathetic activity in response to an increase in leptin and insulin. Converting patients from a regimen of only glucose containing dialysate to a regimen with non-glucose-based solution, icodextrin, will reduce the insulin and leptin levels and will reverse dialysis-induced increases in sympathetic activity.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

Cardiovascular mortality remains higher among patients treated with peritoneal dialysis as compared to patients treated with hemodialysis. Sympathetic hyperactivity is considered a significant emerging risk factor for cardiovascular mortality among patients with ESRD (End-Stage Renal Disease). Sympathetic activity, via its hemodynamic effects and trophic effects, and in interaction with RAAS (Renin Angiotensin Aldosterone System), does play a major role in cardiac and vascular remodelling, development of LVH and vascular hypertrophy, as well as progression to CHF. Glucose-based dialysate induces hyperinsulinemia and hyperleptinemia. We propose that hyperleptinemia induced by glucose-based peritoneal solution is a significant contributing factor to sympathetic hyperactivity in ESRD patients treated with PD, and could be prevented by non-glucose-based PD solution such as icodextrin-based.

Adult patients with ESRD starting PD as their first renal replacement therapy modality will be studied. Patients will be recruited 1-3 weeks prior to starting PD treatment. At baseline, specific studies for microneurography (MSNA), fasting plasma insulin, leptin, catecholamines and brain natriuretic peptide (BNP) will be performed. EKG will be recorded and digitized for further assessment of heart rate variability using power spectral analysis. Extracellular fluid volume status will be assessed by bioelectrical impedance. Central vascular volume will be assessed from inferior vena cava (IVC) by heart ultrasound. Consequently 24-h ambulatory blood pressure monitoring(ABPM)and a 24-h urine collection for urea clearance and creatinine clearance will be done.

All participants into the study will receive a PD treatment for 6 weeks with standard glucose-based PD solution Dianeal. The specific studies are repeated at 6 weeks.Then, patients will be randomized to one of the two groups (arms). One group will continue with Dianeal PD solution for another 12 weeks. The other group will receive Dianeal during the day and Extraneal, icodextrin or non-glucose based solution, during the night only, for the next 12 weeks. The specific studies are repeated at 12 weeks after randomization (18 weeks of PD treatment).

Studietype

Ingrijpend

Inschrijving (Werkelijk)

50

Fase

  • Fase 4

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Canada
    • Ontario
      • Ottawa, Ontario, Canada
        • Ottawa Hospital Research Institute

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

18 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Adult (age 18 years and older)
  • Patients with end-stage renal disease(ESRD)/chronic kidney disease(CKD)stage 5

Exclusion Criteria:

  • Diabetes Mellitus
  • Acute coronary syndrome in the past 6 months
  • Cardiac arrhythmias (2nd and 3rd degree heart block or premature ventricular complexes in Lown classes 4 or 5)
  • Symptoms suggestive of obstructive or central sleep apnea (with a score of > 10 on Epworth sleepiness scale)
  • Patients taking Clonidine
  • Body mass index (BMI) > 34
  • Patients unable to give consent
  • Pregnant women
  • Patients with leg injury involving nerve damage
  • Patients taking anticoagulant medication
  • Patients with significant bleeding disorder or liver disorder
  • Hemoglobin <1.05 g/dl at the time of initiation of therapy
  • patients with unilateral or bilateral nephrectomy
  • Planned kidney transplant in the next 4 months
  • Life expectancy under 6 months
  • Oliguria (urine output less than 400 ml per day)

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Enkel

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Actieve vergelijker: DIANEAL
One group of patients will start peritoneal dialysis with the glucose-based solution (DIANEAL) for 6 weeks, then will continue with the same type of solution for another 12 weeks.
Ander: DIANEAL

Weeks 1 to 6 (6 weeks):

  • CAPD (Continuous Ambulatory Peritoneal Dialysis)patients will receive three 4-6 hour dwells of DIANEAL during the day and one 8-10-hour dwell of DIANEAL during the night
  • CCPD (Continuous Cycler Peritoneal Dialysis)patients will receive one-two 4-6 hour dwells of DIANEAL during the day and three to seven 2-4-hour dwells of DIANEAL during the night

Weeks 7 to 18 (12 weeks):

*same regimen as weeks 1 to 6, for both CAPD and CCPD patients

Andere namen:
  • Dextrose-based PD solution
Actieve vergelijker: EXTRANEAL
The other group of patients will start peritoneal dialysis with the glucose-based solution (DIANEAL) for 6 weeks, then will continue with DIANEAL solution during the day and the non-glucose-based solution, EXTRANEAL, during the night
Ander: EXTRANEAL

Weeks 1 to 6 (6 weeks):

  • CAPD (Continuous Ambulatory Peritoneal Dialysis)patients will receive three 4-6 hour dwells of DIANEAL during the day and one 8-10-hour dwell of DIANEAL during the night
  • CCPD (Continuous Cycler Peritoneal Dialysis)patients will receive one-two 8-12-hour dwells of DIANEAL during the day and three to seven 2-4-hour dwells of DIANEAL during the night

Weeks 7 to 18 (12 weeks):

  • CAPD (Continuous Ambulatory Peritoneal Dialysis)patients will receive three 4-6 hour dwells of DIANEAL during the day and one 8-10-hour dwell of EXTRANEAL during the night
  • CCPD (Continuous Cycler Peritoneal Dialysis)patients will receive one-two 8-12-hour dwells of DIANEAL during the day and one 8-12-hour dwell of EXTRANEAL during the night
Andere namen:
  • Icodextrin-based PD solution

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Changes in muscle sympathetic nerve activity(MSNA)
Tijdsspanne: 6 weeks on PD and 18 weeks on PD

Muscle sympathetic nerve activity(MSNA) is measured by microneurography at

  • baseline (before starting peritoneal dialysis)
  • 6 weeks of PD
  • 18 weeks of PD(12 weeks after randomization)

MSNA increases on a glucose-based dialysis regimen and may decrease by adding non-glucose-based solution
6 weeks on PD and 18 weeks on PD
Changes in leptin levels
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
Plasma leptin increases on a glucose-based peritoneal dialysis regimen and may decrease by adding non-glucose-based solution to the dialysis regimen
6 weeks on PD and 18 weeks on PD

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Changes in blood pressure as assessed from 24-hour ambulatory blood pressure monitor (ABPM)
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
Blood pressure will be assessed with 24-hour ABPM at baseline, 6 weeks on PD and 18 weeks after starting peritoneal dilaysis. Summary measures of each day and night period include average systolic and diastolic BP as well as % nocturnal dipping. These summary measures can predict cardiovascular events more accurately than casual BP measures
6 weeks on PD and 18 weeks on PD
Changes in extracellular volume assessed by bioelectrical impedance (BIA)
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
Bioelectrical impedance directly measures extracellular fluid volume and total body water. The test is based on the ability to detect differences in the conductive properties of a cell by measuring its resistance (impedance) to electrical current. The technique is reliable for tracking sequential changes in extracellular fluid volume.
6 weeks on PD and 18 weeks on PD
Changes in heart rate variability
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
During the microneurography testing, EKG is recorded. Heart rate and heart rate variability(HRV) will be analyzed from EKG data at baseline, 6 weeks and 18 weeks after starting dialysis.
6 weeks on PD and 18 weeks on PD
Changes in central intravascular volume assessed by cardiac ultrasound
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
Central intravascular volume will be assessed by measuring inferior vena cava (IVC) diameter during cardiac ultrasound at baseline, 6 weeks and 18 weeks on dialysis treatment
6 weeks on PD and 18 weeks on PD
Changes in plasma catecholamines levels
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
*Plasma catecholamines (epinephrine and norepinephrine) increase on a glucose-based peritoneal dialysis regimen and may decrease by adding non-glucose-based solution to the dialysis regimen
6 weeks on PD and 18 weeks on PD
Changes in BNP (Brain Natriuretic Peptide)levels
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
*Brain Natriuretic Peptide (BNP)increases on a glucose-based peritoneal dialysis regimen and may decrease by adding non-glucose-based solution to the dialysis regimen
6 weeks on PD and 18 weeks on PD
Changes in plasma insulin levels
Tijdsspanne: 6 weeks on PD and 18 weeks on PD
*Plasma insulin increases on a glucose-based peritoneal dialysis regimen and may decrease by adding non-glucose-based solution to the dialysis regimen
6 weeks on PD and 18 weeks on PD

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Ottawa Hospital Research Institute

Medewerkers

Heart and Stroke Foundation of Ontario

Onderzoekers

  • Hoofdonderzoeker: Marcel Ruzicka, MD, PHD, Ottawa Hospital Research Institute

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 juli 2007

Primaire voltooiing (Werkelijk)

1 december 2018

Studie voltooiing (Werkelijk)

1 december 2018

Studieregistratiedata

Eerst ingediend

13 oktober 2010

Eerst ingediend dat voldeed aan de QC-criteria

22 oktober 2010

Eerst geplaatst (Schatting)

26 oktober 2010

Updates van studierecords

Laatste update geplaatst (Werkelijk)

15 maart 2021

Laatste update ingediend die voldeed aan QC-criteria

11 maart 2021

Laatst geverifieerd

1 maart 2021

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • NA6951

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

product vervaardigd in en geëxporteerd uit de V.S.

Nee

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

Klinische onderzoeken op Eindstadium nierziekte (ESRD)

Klinische onderzoeken op DIANEAL

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