ISRCTN ISRCTN10855079
DOI https://doi.org/10.1186/ISRCTN10855079
Secondary identifying numbers 130789
Submission date
15/01/2020
Registration date
26/03/2020
Last edited
26/03/2020
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Urological and Genital Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Chronic kidney disease (CKD) is a long-term condition where the kidneys don't work as well as they should. Cardiovascular disease is one of the main causes of death in people with kidney disease. Sudden cardiac death (SCD) is the single most common form of death in dialysis patients, accounting for 20% to 30% of all deaths in this cohort. Surprisingly little is known about actual mechanism of SCD in these patients. One reason for clearly insufficient knowledge of arrhythmias has been the lack of adequate means of detecting irregular heartbeats over extended periods of months or years.
Implantable cardiac monitors (ICM) are small devices that used for long-term monitoring of a patient's heart electrical activity.
The aim of this study is to investigate the characteristics of the heartbeat in patients with severe chronic kidney disease.

Who can participate?
Patients with stage 4 or 5 kidney disease aged 18 – 75 years.

What does the study involve?
In this study, we use insertable cardiac monitors (ICM), which is clearly the most advanced method of gathering long-term arrhythmic data. The device is implanted subcutaneously to each patient, which gives us the possibility to monitor the electrical activity of the heart constantly over the follow up of 3 years. The data is collected with remote monitoring.


What are the possible benefits and risks of participating?
The study subjects will not be given any financial remuneration, as they will not have to make extra visits to the hospital because of the study. The participants will receive thorough information about their arrhythmias in the course of the study. They will be monitored closely during the follow up period, and potential life dangering arrhythmias can be detected and a pacemaker implanted when needed.
The subcutaneous implantation of insertable cardiac monitor with local anesthesia is a minor procedure with a minimal risk of complications. Infections and minor bleeding related to implantation of the cardiac monitors are possible, though unlikely, risks for the participants. Other tests performed in the study are noninvasive. The study group has extensive experience with all the tests and devices used in the study, including insertable cardiac monitors.

Where is the study run from?
Päijät-Häme Central Hospital, Finland

When is the study starting and how long is it expected to run for?
November 2011 to December 2020

Who is funding the study?
1. Medtronic Ltd, USA
2. Onni ja Hilja Tuovinen Fund, Finland

Who is the main contact?
Dr Joonas Rautavaara
joonas.rautavaara@gmail.com

Contact information

Dr Joonas Rautavaara
Public

Keskussairaalantie 7
Lahti
15850
Finland

Phone +35 8381911
Email joonas.rautavaara@phhyky.fi

Study information

Study designObservational study
Primary study designObservational
Secondary study designCross sectional study
Study setting(s)Hospital
Study typeScreening
Participant information sheet Not available in web format, please use contact details to request a participant information sheet.
Scientific titleSudden cardiac death and arrhythmias in end-stage renal disease
Study acronymKSCD
Study objectivesWhat are the most common arrhythmias in patients with end-stage renal disease in different dialysis modalities, which are the factors affecting the prevalence and incidence of these arrhythmias?
Ethics approval(s)Approved 14/10/2011, Ethics Committee of the Pirkanmaa Hospital District (The Ethics Committee of Pirkanmaa Hospital District, Post box 2000, 33521, Tampere, Finland; +358 50 329 5667; minna.maa.lahtinen@pshp.fi), ref: R11138 / 2011
Health condition(s) or problem(s) studiedEnd-stage kidney disease stage IV and V
InterventionThe continuous rhythm monitoring of among the participants of the study was carried out using the Medtronic ICMs (Reveal® DX, Reveal XT™ and Reveal Linq™) (Medtronic Inc, Minneapolis, MN, USA). ICMs will be implanted subcutaneously on the left side of the chest using local anaesthesia. Data retrieval from Reveal XT is performed noninvasively via an induction link when the patients visited the hospital for dialysis or for a routine check-up. The participants have an ambulatory 24-hour ECG recording at the beginning of the study and once a year thereafter. At the beginning of the study, an echocardiogram is performed for each participant.
Intervention typeDevice
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Medtronic ICMs (Reveal® DX, Reveal XT™ and Reveal Linq™)
Primary outcome measurePresence and burden of atrial fibrillation, atrial flutter, bradycardia, sustained and non-sustained ventricular tachycardia, ventricular premature contractions, asystole and ventricular fibrillation are quantified using the data from insertable cardiac monitors over the course of the follow-up time of 3 years
Secondary outcome measures1. Temporal association between dialysis and the arrhythmias using the data from insertable cardiac monitors over the course of the follow-up time of 3 years
2. Prevalence of arrhythmias using the data from insertable cardiac monitors over the course of the follow-up time of 3 years.
3. Survival at 3 years measured using patient records.
Overall study start date13/09/2011
Completion date31/12/2020

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants80
Key inclusion criteria1. Stage 4 (pre-dialysis, glomerular filtration rate 15-29 mL/min/1.73m²) or stage 5 (end-stage renal disease, <15 mL/min/1.73m² or dialysis)
2. Planned active treatment is either hemodialysis or peritoneal dialysis, or kidney transplantation. The hemodialysis also includes short daily home hemodialysis
Key exclusion criteria1. Age >75 years
2. Age <18 years
3. Presence of a non-cardiovascular and non-renal disease which limits the expected life-span to less than 1 year
4. Probable noncompliance
Date of first enrolment09/11/2011
Date of final enrolment31/12/2019

Locations

Countries of recruitment

  • Finland

Study participating centres

Päijät-Häme Central Hospital
Keskussairaalankatu 7
Lahti
15850
Finland
Helsinki University Hospital
Haartmaninkatu 4 Rakennus 3
Helsinki
00290
Finland
Central Hospital of Central Finland
Keskussairaalantie 19
Jyväskylä
40620
Finland
Satakunta Central Hospital
Sairaalantie 3
Pori
28500
Finland
Vaasa Central Hospital
Hietalahdenkatu 2-4
Vaasa
65100
Finland

Sponsor information

Päijät-Hämeen Keskussairaala
Hospital/treatment centre

Keskussairaalankatu 7
Lahti
15850
Finland

Phone +35 00381911
Email tuomo.nieminen@phhyky.fi
Website https://www.phhyky.fi/fi/etusivu/
ROR logo "ROR" https://ror.org/02v92t976

Funders

Funder type

Industry

Medtronic
Private sector organisation / For-profit companies (industry)
Alternative name(s)
Medtronic Inc.
Location
United States of America
Onni ja Hilja Tuovinen Fund

No information available

Results and Publications

Intention to publish date30/06/2020
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planDuring year 2020 we intend to publish the prevalence of atrial fibrillation and bradyarrhythmias and the factors associated with if. Later this year, we also intend to compare the effect of different dialysis modalities and kidney transplantation on the incidence of new arrhythmias.
IPD sharing planThe datasets generated during and/or analysed during the current study are not expected to be made available. Due to the limited number of patients in some participating hospitals, the patients could be identifiable even from the anonymized data sets. According to the concent form signed by the patients, data will be treated confidentially and handled only by the investigators and study nurses.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file version v1.7 14/06/2019 26/03/2020 No No

Additional files

ISRCTN10855079_PROTOCOL_v1.7_14Jun19.pdf
uploaded 26/03/2020

Editorial Notes

26/03/2020: Uploaded protocol (not peer reviewed) as an additional file.
21/02/2020: Trial’s existence confirmed by Ethics Committee of the Pirkanmaa Hospital District.