NCT04603014

Brief Summary

Sodium accumulates in the tissues of patients with kidney disease and impairs survival. Three-times weekly, standard hemodialysis alone cannot remove excess sodium efficiently. A sample of 10 chronic hemodialysis patients will undergo a 5-week, pilot, interventional study to test the efficacy of additional sodium removal in-between hemodialysis sessions, twice per week, for three weeks. Tissue sodium removal will be achieved with peritoneal dialysis after the surgical insertion of a peritoneal dialysis catheter. Tissue sodium removal will be assessed at the beginning and at the end of the study with sodium magnetic resonance imaging of a peripheral limb (leg). Patients will also undergo monitoring for symptoms and blood pressure throughout the study to assess the safety of this procedure.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
10

participants targeted

Target at below P25 for phase_2

Timeline
8mo left

Started Jan 2021

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress89%
Jan 2021Dec 2026

First Submitted

Initial submission to the registry

October 13, 2020

Completed
13 days until next milestone

First Posted

Study publicly available on registry

October 26, 2020

Completed
2 months until next milestone

Study Start

First participant enrolled

January 1, 2021

Completed
6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2026

Last Updated

May 4, 2026

Status Verified

April 1, 2026

Enrollment Period

6 years

First QC Date

October 13, 2020

Last Update Submit

April 28, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Skin sodium concentration

    Skin sodium concentration at the end of week 4 as measured by sodium-23 magnetic resonance imaging of the leg.

    End of week 4

  • Adverse events

    Completion of the iPUF treatment without adverse events

    iPUF interventions on Week 2, 3 and 4

Secondary Outcomes (9)

  • Interdialytic weight gain

    week 1 vs 4, week 1 vs 5-6

  • Total weekly sodium removal with interdialytic peritoneal ultrafiltration

    week 2, 3, 4

  • Total volume of fluid removed with interdialytic peritoneal ultrafiltration

    week 2, 3, 4

  • Home blood pressure

    week 1 vs week 4, week 1 vs 5-6

  • Mean intradialytic hemodynamics

    week 1 vs 4, week 1 vs 6

  • +4 more secondary outcomes

Study Arms (1)

Interdialytic peritoneal ultrafiltration

EXPERIMENTAL

Will receive incremental interdialytic peritoneal ultrafiltration with a 10% dextrose solution, twice a week for three consecutive weeks

Combination Product: Interdialytic peritoneal ultrafiltration with 10% dextrose solution

Interventions

Interdialytic peritoneal ultrafiltration with incremental doses of a 10% dextrose solution, after hemodialysis twice weekly for three consecutive weeks

Interdialytic peritoneal ultrafiltration

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • At least one of the following:
  • Average per-session interdialytic weight gain ≥ 4.0 % of their dry weight in the last month;
  • Inability to consistently achieve dry weight with the current treatment schedule;
  • Need for additional HD treatments to achieve prescribed dry weight.
  • Weekly HD sessions - up to three times/week
  • Age ≥18 years
  • Willing and able to give informed consent

You may not qualify if:

  • Contraindications to peritoneal dialysis
  • Contraindications to MRI
  • Uncontrolled diabetes mellitus
  • Active infections
  • Non-compliance to hemodialysis prescription
  • Pre-study serum sodium \< 130 mmol/L

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

London Health Sciences Centre

London, Ontario, N6A 5W9, Canada

Location

Related Publications (22)

  • Flythe JE, Curhan GC, Brunelli SM. Disentangling the ultrafiltration rate-mortality association: the respective roles of session length and weight gain. Clin J Am Soc Nephrol. 2013 Jul;8(7):1151-61. doi: 10.2215/CJN.09460912. Epub 2013 Mar 14.

    PMID: 23493384BACKGROUND
  • Assimon MM, Wang L, Flythe JE. Failed Target Weight Achievement Associates with Short-Term Hospital Encounters among Individuals Receiving Maintenance Hemodialysis. J Am Soc Nephrol. 2018 Aug;29(8):2178-2188. doi: 10.1681/ASN.2018010004. Epub 2018 May 23.

    PMID: 29793962BACKGROUND
  • Ramdeen G, Tzamaloukas AH, Malhotra D, Leger A, Murata GH. Estimates of interdialytic sodium and water intake based on the balance principle: differences between nondiabetic and diabetic subjects on hemodialysis. ASAIO J. 1998 Nov-Dec;44(6):812-7. doi: 10.1097/00002480-199811000-00009.

    PMID: 9831090BACKGROUND
  • Titze J, Lang R, Ilies C, Schwind KH, Kirsch KA, Dietsch P, Luft FC, Hilgers KF. Osmotically inactive skin Na+ storage in rats. Am J Physiol Renal Physiol. 2003 Dec;285(6):F1108-17. doi: 10.1152/ajprenal.00200.2003. Epub 2003 Jul 29.

    PMID: 12888617BACKGROUND
  • Kopp C, Linz P, Wachsmuth L, Dahlmann A, Horbach T, Schofl C, Renz W, Santoro D, Niendorf T, Muller DN, Neininger M, Cavallaro A, Eckardt KU, Schmieder RE, Luft FC, Uder M, Titze J. (23)Na magnetic resonance imaging of tissue sodium. Hypertension. 2012 Jan;59(1):167-72. doi: 10.1161/HYPERTENSIONAHA.111.183517. Epub 2011 Dec 5.

    PMID: 22146510BACKGROUND
  • Machnik A, Neuhofer W, Jantsch J, Dahlmann A, Tammela T, Machura K, Park JK, Beck FX, Muller DN, Derer W, Goss J, Ziomber A, Dietsch P, Wagner H, van Rooijen N, Kurtz A, Hilgers KF, Alitalo K, Eckardt KU, Luft FC, Kerjaschki D, Titze J. Macrophages regulate salt-dependent volume and blood pressure by a vascular endothelial growth factor-C-dependent buffering mechanism. Nat Med. 2009 May;15(5):545-52. doi: 10.1038/nm.1960. Epub 2009 May 3.

    PMID: 19412173BACKGROUND
  • Wenstedt EFE, Olde Engberink RHG, Vogt L. Sodium Handling by the Blood Vessel Wall: Critical for Hypertension Development. Hypertension. 2018 Jun;71(6):990-996. doi: 10.1161/HYPERTENSIONAHA.118.10211. Epub 2018 Apr 16. No abstract available.

    PMID: 29661837BACKGROUND
  • Qirjazi E, Salerno FR, Akbari A, Hur L, Penny J, Scholl T, McIntyre CW. Tissue sodium concentrations in chronic kidney disease and dialysis patients by lower leg sodium-23 magnetic resonance imaging. Nephrol Dial Transplant. 2020 Apr 6:gfaa036. doi: 10.1093/ndt/gfaa036. Online ahead of print.

    PMID: 32252091BACKGROUND
  • Canaud B, Kooman J, Selby NM, Taal M, Francis S, Kopperschmidt P, Maierhofer A, Kotanko P, Titze J. Sodium and water handling during hemodialysis: new pathophysiologic insights and management approaches for improving outcomes in end-stage kidney disease. Kidney Int. 2019 Feb;95(2):296-309. doi: 10.1016/j.kint.2018.09.024.

    PMID: 30665570BACKGROUND
  • Dahlmann A, Dorfelt K, Eicher F, Linz P, Kopp C, Mossinger I, Horn S, Buschges-Seraphin B, Wabel P, Hammon M, Cavallaro A, Eckardt KU, Kotanko P, Levin NW, Johannes B, Uder M, Luft FC, Muller DN, Titze JM. Magnetic resonance-determined sodium removal from tissue stores in hemodialysis patients. Kidney Int. 2015 Feb;87(2):434-41. doi: 10.1038/ki.2014.269. Epub 2014 Aug 6.

    PMID: 25100048BACKGROUND
  • Santos SF, Peixoto AJ. Sodium balance in maintenance hemodialysis. Semin Dial. 2010 Nov-Dec;23(6):549-55. doi: 10.1111/j.1525-139X.2010.00794.x.

    PMID: 21175831BACKGROUND
  • Obi Y, Rhee CM, Mathew AT, Shah G, Streja E, Brunelli SM, Kovesdy CP, Mehrotra R, Kalantar-Zadeh K. Residual Kidney Function Decline and Mortality in Incident Hemodialysis Patients. J Am Soc Nephrol. 2016 Dec;27(12):3758-3768. doi: 10.1681/ASN.2015101142. Epub 2016 May 11.

    PMID: 27169576BACKGROUND
  • Kawanishi H, Hashimoto Y, Nakamoto H, Nakayama M, Tranaeus A. Combination therapy with peritoneal dialysis and hemodialysis. Perit Dial Int. 2006 Mar-Apr;26(2):150-4. No abstract available.

    PMID: 16623416BACKGROUND
  • McIntyre CW. Bimodal dialysis: an integrated approach to renal replacement therapy. Perit Dial Int. 2004 Nov-Dec;24(6):547-53.

    PMID: 15559484BACKGROUND
  • Sriperumbuduri S, Biyani M, Brown PA, McCormick BB. Retrospective study of patients on hybrid dialysis: Single-center data from North America. Perit Dial Int. 2020 Mar;40(2):224-226. doi: 10.1177/0896860819887284. Epub 2020 Jan 17.

    PMID: 32063198BACKGROUND
  • Banshodani M, Kawanishi H, Moriishi M, Shintaku S, Tsuchiya S. Association between Dialysis Modality and Cardiovascular Diseases: A Comparison between Peritoneal Dialysis and Hemodialysis. Blood Purif. 2020;49(3):302-309. doi: 10.1159/000504040. Epub 2019 Dec 18.

    PMID: 31851981BACKGROUND
  • Kanda R, Io H, Nakata J, Makita Y, Sasaki Y, Matsumoto M, Wakabayashi K, Tomino Y, Suzuki Y. Evaluation of Long-Term Combination Therapy With Peritoneal Dialysis and Hemodialysis. Ther Apher Dial. 2017 Apr;21(2):180-184. doi: 10.1111/1744-9987.12517. Epub 2017 Feb 10.

    PMID: 28185405BACKGROUND
  • Rao VS, Turner JM, Griffin M, Mahoney D, Asher J, Jeon S, Yoo PS, Boutagy N, Feher A, Sinusas A, Wilson FP, Finkelstein F, Testani JM. First-in-Human Experience With Peritoneal Direct Sodium Removal Using a Zero-Sodium Solution: A New Candidate Therapy for Volume Overload. Circulation. 2020 Mar 31;141(13):1043-1053. doi: 10.1161/CIRCULATIONAHA.119.043062. Epub 2020 Jan 8.

    PMID: 31910658BACKGROUND
  • Quiroga IM, Baboo R, Lord RH, Darby CR. Tenckhoff catheters post-renal transplantation: the 'pull' technique? Nephrol Dial Transplant. 2001 Oct;16(10):2079-81. doi: 10.1093/ndt/16.10.2079.

    PMID: 11572901BACKGROUND
  • Grieff M, Mamo E, Scroggins G, Kurchin A. The 'Pull' Technique for Removal of Peritoneal Dialysis Catheters: A Call for Re-Evaluation of Practice Standards. Perit Dial Int. 2017 Mar-Apr;37(2):225-229. doi: 10.3747/pdi.2016.00152.

    PMID: 28360368BACKGROUND
  • Quiroga I, Reddy SP, Bhattacharjya S, Darby CR. Tenckhoff catheters: the pull technique. Nephrol Dial Transplant. 2003 Aug;18(8):1682. doi: 10.1093/ndt/gfg173. No abstract available.

    PMID: 12897121BACKGROUND
  • McIntyre CW. Update on Hemodialysis-Induced Multiorgan Ischemia: Brains and Beyond. J Am Soc Nephrol. 2024 May 1;35(5):653-664. doi: 10.1681/ASN.0000000000000299. Epub 2024 Jan 26.

Study Officials

  • Christopher W. McIntyre, MD, PhD

    Lawson Research Institute

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Medicine, Medical Biophysics and Pediatrics, School of Medicine and Dentistry, Western University; Director of The Kidney Clinical Research Unit, London Health Sciences Centre, London, ON, Canada

Study Record Dates

First Submitted

October 13, 2020

First Posted

October 26, 2020

Study Start

January 1, 2021

Primary Completion (Estimated)

December 30, 2026

Study Completion (Estimated)

December 30, 2026

Last Updated

May 4, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations