Brief Summary

Shortness of breath is very common among patients on dialysis for kidney failure; however, its causes are often not understood. This study will explore the lungs and the heart of these patients to determine the causes of shortness of breath. The amount of salt in the body tissues, which tends to accumulate in dialysis patients and can also cause shortness of breath, will also be measured. Machines that exploit magnetic resonance, ultrasound and x-rays to take images of the body interior will be employed; in addition, breathing tests, questionnaires and blood tests will also be used. 20 patients on dialysis will be recruited and have two visits: one at the beginning of the study and one year later to observe any changes in the lungs, heart and salt accumulation over time.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
7

participants targeted

Target at below P25 for all trials

Timeline
Completed

Started Mar 2019

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

November 29, 2018

Completed
13 days until next milestone

First Posted

Study publicly available on registry

December 12, 2018

Completed
4 months until next milestone

Study Start

First participant enrolled

March 29, 2019

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 25, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 25, 2020

Completed
Last Updated

August 15, 2024

Status Verified

August 1, 2024

Enrollment Period

11 months

First QC Date

November 29, 2018

Last Update Submit

August 13, 2024

Conditions

Keywords

DyspneaHemodialysisEnd Stage Renal Disease

Outcome Measures

Primary Outcomes (8)

  • Baseline Modified Medical Research Council scale score.

    Baseline dyspnea measured by Modified Medical Research Council scale. 0-4 from lowest (no dyspnea) to highest (most severe dyspnea).

    Baseline

  • Baseline University of California, San Diego Shortness of Breath Questionnaire score.

    Baseline dyspnea measured by University of California, San Diego Shortness of Breath Questionnaire. 0-120 from lowest (no dyspnea) to highest (most severe dyspnea).

    Baseline

  • Baseline pulmonary artery diameter.

    Baseline pulmonary artery diameter (in millimeters) by chest Computed Tomography.

    Baseline

  • Baseline lung total blood vessel volume.

    Baseline lung total blood vessel volume in ml by chest Computed Tomography.

    Baseline

  • Baseline lung total airway count.

    Baseline lung total airway count by chest Computed Tomography.

    Baseline

  • Baseline lung low attenuation area.

    Baseline lung low attenuation area by chest Computed Tomography.

    Baseline

  • Baseline lung water content.

    Baseline lung water content in arbitrary units measured by proton Magnetic Resonance Imaging.

    Baseline

  • Baseline soft tissue sodium content.

    Baseline soft tissue sodium content in mmol/L measured by sodium Magnetic Resonance Imaging.

    Baseline

Secondary Outcomes (34)

  • One year changes in Modified Medical Research Council scale score.

    Baseline and one year

  • Correlation between baseline modified Medical Research Council scale score and one year morbidity.

    Baseline and one year

  • Correlation between baseline modified Medical Research Council scale score and one year mortality.

    Baseline and one year

  • Correlation between modified Medical Research Council scale score and soft tissue sodium content.

    Baseline and one year

  • Correlation between modified Medical Research Council scale score and pulmonary artery diameter.

    Baseline and one year

  • +29 more secondary outcomes

Study Arms (1)

Maintenance Hemodialysis Patients

Patients on chronic hemodialysis therapy due to end-stage renal disease. * Proton Lung MRI * Sodium MRI of the leg * Chest CT * Transthoracic Echocardiography * Fractional Exhaled Nitric Oxide * Six-Minute Walk Test * Pulmonary Function Tests * Blood sampling * Self-administered dyspnea questionnaires

Diagnostic Test: Lung MRIDiagnostic Test: Sodium MRIDiagnostic Test: Chest CTDiagnostic Test: EchocardiographyDiagnostic Test: Fractional Exhaled Nitric OxideDiagnostic Test: Pulmonary Function TestsDiagnostic Test: Blood SamplingDiagnostic Test: Six-Minute Walk TestDiagnostic Test: Dyspnea Questionnaires

Interventions

Lung MRIDIAGNOSTIC_TEST

Proton Lung Magnetic Resonance Imaging

Maintenance Hemodialysis Patients
Sodium MRIDIAGNOSTIC_TEST

Sodium Soft Tissue Magnetic Resonance Imaging

Maintenance Hemodialysis Patients
Chest CTDIAGNOSTIC_TEST

High-resolution Quantitative Chest CT

Maintenance Hemodialysis Patients
EchocardiographyDIAGNOSTIC_TEST

Transthoracic 2D Speckle-Tracking Echocardiography

Maintenance Hemodialysis Patients

Fractional Exhaled Nitric Oxide testing

Maintenance Hemodialysis Patients

Spirometry and Plethysmography

Maintenance Hemodialysis Patients
Blood SamplingDIAGNOSTIC_TEST

Blood testing for: standard-of-care, inflammatory biomarkers, uremic toxins

Maintenance Hemodialysis Patients
Six-Minute Walk TestDIAGNOSTIC_TEST

Six-Minute Walk Test

Maintenance Hemodialysis Patients
Dyspnea QuestionnairesDIAGNOSTIC_TEST

Modified Medical Research Council; University of California, San Diego Shortness of Breath Questionnaire; Borg Scale

Maintenance Hemodialysis Patients

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The patients for this trial will be recruited from incident and prevalent hemodialysis patients receiving care for their kidney disease from the Dialysis Service at London Health Sciences Centre, London Ontario. Up to 20 eligible patients will be recruited.

You may qualify if:

  • Age equal to or greater than 18 years.
  • Dialysis vintage equal to or greater than 3 months.

You may not qualify if:

  • Smoking history of more than 10 packs/year.
  • Active tobacco and/or cannabis smoking.
  • Diagnosed chronic pulmonary disease.
  • Severe heart failure (NYHA class IV)
  • Active infection (including tuberculosis) or malignancy.
  • Pregnancy.
  • Inability to give consent or understand written information.
  • Peripheral oxygen saturation (by pulse oxymetry) dropping below 80% when performing a 12-seconds breathhold.
  • Inability to perform spirometry or plethysmography maneuvers.
  • Inability to tolerate MRI due to patient size and/or known history of claustrophobia.
  • Subject has an implanted mechanically, electrically or magnetically activated device or any metal in their body which cannot be removed, including but not limited to pacemakers, neurostimulators, biostimulators, implanted insulin pumps, aneurysm clips, bioprosthesis, artificial limb, metallic fragment or foreign body, shunt, surgical staples (including clips or metallic sutures and/or ear implants.).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

London Health Sciences Centre

London, Ontario, Canada

Location

Related Publications (15)

  • Murtagh FE, Addington-Hall JM, Edmonds PM, Donohoe P, Carey I, Jenkins K, Higginson IJ. Symptoms in advanced renal disease: a cross-sectional survey of symptom prevalence in stage 5 chronic kidney disease managed without dialysis. J Palliat Med. 2007 Dec;10(6):1266-76. doi: 10.1089/jpm.2007.0017.

    PMID: 18095805BACKGROUND
  • Fairshter RD, Vaziri ND, Mirahmadi MK. Lung pathology in chronic hemodialysis patients. Int J Artif Organs. 1982 Mar;5(2):97-100.

    PMID: 7095887BACKGROUND
  • Zoccali C, Torino C, Tripepi R, Tripepi G, D'Arrigo G, Postorino M, Gargani L, Sicari R, Picano E, Mallamaci F; Lung US in CKD Working Group. Pulmonary congestion predicts cardiac events and mortality in ESRD. J Am Soc Nephrol. 2013 Mar;24(4):639-46. doi: 10.1681/ASN.2012100990. Epub 2013 Feb 28.

    PMID: 23449536BACKGROUND
  • Nascimento MM, Qureshi AR, Stenvinkel P, Pecoits-Filho R, Heimburger O, Cederholm T, Lindholm B, Barany P. Malnutrition and inflammation are associated with impaired pulmonary function in patients with chronic kidney disease. Nephrol Dial Transplant. 2004 Jul;19(7):1823-8. doi: 10.1093/ndt/gfh190. Epub 2004 May 18.

    PMID: 15150347BACKGROUND
  • Wallin CJ, Jacobson SH, Leksell LG. Subclinical pulmonary oedema and intermittent haemodialysis. Nephrol Dial Transplant. 1996 Nov;11(11):2269-75. doi: 10.1093/oxfordjournals.ndt.a027147.

    PMID: 8941589BACKGROUND
  • Bolignano D, Rastelli S, Agarwal R, Fliser D, Massy Z, Ortiz A, Wiecek A, Martinez-Castelao A, Covic A, Goldsmith D, Suleymanlar G, Lindholm B, Parati G, Sicari R, Gargani L, Mallamaci F, London G, Zoccali C. Pulmonary hypertension in CKD. Am J Kidney Dis. 2013 Apr;61(4):612-22. doi: 10.1053/j.ajkd.2012.07.029. Epub 2012 Nov 17.

    PMID: 23164943BACKGROUND
  • Barak M, Nakhoul F, Katz Y. Pathophysiology and clinical implications of microbubbles during hemodialysis. Semin Dial. 2008 May-Jun;21(3):232-8. doi: 10.1111/j.1525-139X.2008.00424.x. Epub 2008 Mar 18.

    PMID: 18363602BACKGROUND
  • Plesner LL, Warming PE, Nielsen TL, Dalsgaard M, Schou M, Host U, Rydahl C, Brandi L, Kober L, Vestbo J, Iversen K. Chronic obstructive pulmonary disease in patients with end-stage kidney disease on hemodialysis. Hemodial Int. 2016 Jan;20(1):68-77. doi: 10.1111/hdi.12342. Epub 2015 Aug 5.

    PMID: 26245152BACKGROUND
  • Pabst S, Hammerstingl C, Hundt F, Gerhardt T, Grohe C, Nickenig G, Woitas R, Skowasch D. Pulmonary hypertension in patients with chronic kidney disease on dialysis and without dialysis: results of the PEPPER-study. PLoS One. 2012;7(4):e35310. doi: 10.1371/journal.pone.0035310. Epub 2012 Apr 18.

    PMID: 22530005BACKGROUND
  • Herrero JA, Alvarez-Sala JL, Coronel F, Moratilla C, Gamez C, Sanchez-Alarcos JM, Barrientos A. Pulmonary diffusing capacity in chronic dialysis patients. Respir Med. 2002 Jul;96(7):487-92. doi: 10.1053/rmed.2002.1346.

    PMID: 12194631BACKGROUND
  • Kovacevic P, Stanetic M, Rajkovaca Z, Meyer FJ, Vukoja M. Changes in spirometry over time in uremic patients receiving long-term hemodialysis therapy. Pneumologia. 2011 Jan-Mar;60(1):36-9.

    PMID: 21545062BACKGROUND
  • McIntyre CW, Odudu A. Hemodialysis-associated cardiomyopathy: a newly defined disease entity. Semin Dial. 2014 Mar;27(2):87-97. doi: 10.1111/sdi.12197.

    PMID: 24738144BACKGROUND
  • Belem LC, Zanetti G, Souza AS Jr, Hochhegger B, Guimaraes MD, Nobre LF, Rodrigues RS, Marchiori E. Metastatic pulmonary calcification: state-of-the-art review focused on imaging findings. Respir Med. 2014 May;108(5):668-76. doi: 10.1016/j.rmed.2014.01.012. Epub 2014 Feb 6.

    PMID: 24529738BACKGROUND
  • Incalzi RA, Corsonello A, Pedone C, Battaglia S, Paglino G, Bellia V; Extrapulmonary Consequences of COPD in the Elderly Study Investigators. Chronic renal failure: a neglected comorbidity of COPD. Chest. 2010 Apr;137(4):831-7. doi: 10.1378/chest.09-1710. Epub 2009 Nov 10.

    PMID: 19903974BACKGROUND
  • Romoff MS, Keusch G, Campese VM, Wang MS, Friedler RM, Weidmann P, Massry SG. Effect of sodium intake on plasma catecholamines in normal subjects. J Clin Endocrinol Metab. 1979 Jan;48(1):26-31. doi: 10.1210/jcem-48-1-26. No abstract available.

    PMID: 422701BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

Plasma and serum.

MeSH Terms

Conditions

DyspneaKidney Failure, ChronicHypernatremia

Interventions

EchocardiographyFractional Exhaled Nitric Oxide TestingRespiratory Function TestsBlood Specimen CollectionWalk Test

Condition Hierarchy (Ancestors)

Respiration DisordersRespiratory Tract DiseasesSigns and Symptoms, RespiratorySigns and SymptomsPathological Conditions, Signs and SymptomsRenal Insufficiency, ChronicRenal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesWater-Electrolyte ImbalanceMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Cardiac Imaging TechniquesDiagnostic ImagingDiagnostic Techniques and ProceduresDiagnosisUltrasonographyHeart Function TestsDiagnostic Techniques, CardiovascularBreath TestsDiagnostic Techniques, Respiratory SystemSpecimen HandlingClinical Laboratory TechniquesPuncturesSurgical Procedures, OperativeInvestigative TechniquesExercise Test

Study Officials

  • Christopher W McIntyre, MD PhD

    London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Medicine, Medical Biophysics and Paediatrics, University of Western Ontario. Director of The Lilibeth Caberto Kidney Clinical Research Unit, London Health Sciences Centre.

Study Record Dates

First Submitted

November 29, 2018

First Posted

December 12, 2018

Study Start

March 29, 2019

Primary Completion

February 25, 2020

Study Completion

February 25, 2020

Last Updated

August 15, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

Locations