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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT06508164
Registration number
NCT06508164
Ethics application status
Date submitted
8/07/2024
Date registered
18/07/2024
Date last updated
26/08/2025
Titles & IDs
Public title
International CRDS Registry
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Scientific title
International Calcium Release Deficiency Syndrome Registry
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Secondary ID [1]
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16861
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Universal Trial Number (UTN)
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Trial acronym
CRDS Registry
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Calcium Release Deficiency Syndrome
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Condition category
Condition code
Intervention/exposure
Study type
Observational [Patient Registry]
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
CRDS - Possesses a rare RYR2 variant characterized to be loss-of-function based on in vitro testing consistent with a CRDS diagnosis
Carrier of an RYR2 truncating variant or large copy number variant - Possesses a rare RYR2 truncating variant and/or large copy number variant involving the RYR2 gene.
Carrier of a non-functional RYR2 rare variant - Possesses a rare RYR2 variant that is NOT loss-of-function based on in vitro testing and has a clinical phenotype that was considered compatible with CRDS
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Malignant Ventricular Arrhythmia
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Assessment method [1]
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Composite of malignant syncope, ICD shock, cardiac arrest, and sudden cardiac death
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Timepoint [1]
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5 years
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Eligibility
Key inclusion criteria
CRDS Cohort
Inclusion Criterion:
- Presence of a rare* RYR2 variant that is characterized to be loss-of-function based on in vitro testing#
RYR2 Truncating and Large CNV Cohort
Inclusion Criterion:
- Presence of a rare* RYR2 truncating variant and/or large copy number variant involving the RYR2 gene.
Carriers of a Non-Functional RYR2 variant
Inclusion Criterion:
- Presence of a rare* RYR2 variant that is characterized to be neither loss- nor gain-of-function based on in vitro testing#
*rare defined as gnomAD prevalence < 0.1%
#RYR2 in vitro functional testing will be performed in the laboratory of Dr. Wayne Chen (University of Calgary)
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Minimum age
No limit
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
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Study design
Purpose
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Duration
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Selection
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
21/11/2024
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
31/12/2050
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Actual
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Sample size
Target
500
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
NSW
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Recruitment hospital [1]
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Garvan Institute of Medical Research - Darlinghurst
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Recruitment postcode(s) [1]
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2010 - Darlinghurst
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Recruitment outside Australia
Country [1]
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United States of America
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State/province [1]
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California
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Country [2]
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Belgium
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State/province [2]
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Antwerp
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Country [3]
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Belgium
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State/province [3]
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Brussels
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Country [4]
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Canada
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State/province [4]
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British Columbia
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Country [5]
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Canada
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Ontario
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Country [6]
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Canada
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State/province [6]
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Quebec
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Country [7]
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Denmark
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State/province [7]
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Aarhus
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Country [8]
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Israel
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State/province [8]
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Jerusalem
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Funding & Sponsors
Primary sponsor type
Other
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Name
Population Health Research Institute
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Address
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Country
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Other collaborator category [1]
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Government body
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Name [1]
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Canadian Institutes of Health Research (CIHR)
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Address [1]
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Country [1]
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Ethics approval
Ethics application status
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Summary
Brief summary
Calcium Release Deficiency Syndrome (CRDS) is a newly discovered genetic arrhythmia syndrome that confers a risk of life-threatening arrhythmias secondary to RYR2 loss-of-function. The International CRDS registry has been designed to facilitate large-scale evaluation of CRDS, including its phenotypic spectrum, approaches to risk stratification, and optimal treatment strategies.
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Trial website
https://clinicaltrials.gov/study/NCT06508164
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Trial related presentations / publications
Sun B, Yao J, Ni M, Wei J, Zhong X, Guo W, Zhang L, Wang R, Belke D, Chen YX, Lieve KVV, Broendberg AK, Roston TM, Blankoff I, Kammeraad JA, von Alvensleben JC, Lazarte J, Vallmitjana A, Bohne LJ, Rose RA, Benitez R, Hove-Madsen L, Napolitano C, Hegele RA, Fill M, Sanatani S, Wilde AAM, Roberts JD, Priori SG, Jensen HK, Chen SRW. Cardiac ryanodine receptor calcium release deficiency syndrome. Sci Transl Med. 2021 Feb 3;13(579):eaba7287. doi: 10.1126/scitranslmed.aba7287. Roston TM, Wei J, Guo W, Li Y, Zhong X, Wang R, Estillore JP, Peltenburg PJ, Noguer FRI, Till J, Eckhardt LL, Orland KM, Hamilton R, LaPage MJ, Krahn AD, Tadros R, Vinocur JM, Kallas D, Franciosi S, Roberts JD, Wilde AAM, Jensen HK, Sanatani S, Chen SRW. Clinical and Functional Characterization of Ryanodine Receptor 2 Variants Implicated in Calcium-Release Deficiency Syndrome. JAMA Cardiol. 2022 Jan 1;7(1):84-92. doi: 10.1001/jamacardio.2021.4458. Li Y, Wei J, Guo W, Sun B, Estillore JP, Wang R, Yoruk A, Roston TM, Sanatani S, Wilde AAM, Gollob MH, Roberts JD, Tseng ZH, Jensen HK, Chen SRW. Human RyR2 (Ryanodine Receptor 2) Loss-of-Function Mutations: Clinical Phenotypes and In Vitro Characterization. Circ Arrhythm Electrophysiol. 2021 Sep;14(9):e010013. doi: 10.1161/CIRCEP.121.010013. Epub 2021 Sep 1. Ormerod JOM, Ormondroyd E, Li Y, Taylor J, Wei J, Guo W, Wang R, Sarton CNS, McGuire K, Dreau HMP, Taylor JC, Ginks MR, Rajappan K, Chen SRW, Watkins H. Provocation Testing and Therapeutic Response in a Newly Described Channelopathy: RyR2 Calcium Release Deficiency Syndrome. Circ Genom Precis Med. 2022 Feb;15(1):e003589. doi: 10.1161/CIRCGEN.121.003589. Epub 2021 Dec 24. Ni M, Li Y, Wei J, Song Z, Wang H, Yao J, Chen YX, Belke D, Estillore JP, Wang R, Vallmitjana A, Benitez R, Hove-Madsen L, Feng W, Chen J, Roston TM, Sanatani S, Lehman A, Chen SRW. Increased Ca2+ Transient Underlies RyR2-Related Left Ventricular Noncompaction. Circ Res. 2023 Jul 7;133(2):177-192. doi: 10.1161/CIRCRESAHA.123.322504. Epub 2023 Jun 16. Ni M, Dadon Z, Ormerod JOM, Saenen J, Hoeksema WF, Antiperovitch P, Tadros R, Christiansen MK, Steinberg C, Arnaud M, Tian S, Sun B, Estillore JP, Wang R, Khan HR, Roston TM, Mazzanti A, Giudicessi JR, Siontis KC, Alak A, Acosta JG, Divakara Menon SM, Tan NS, van der Werf C, Nazer B, Vivekanantham H, Pandya T, Cunningham J, Gula LJ, Wong JA, Amit G, Scheinman MM, Krahn AD, Ackerman MJ, Priori SG, Gollob MH, Healey JS, Sacher F, Nof E, Glikson M, Wilde AAM, Watkins H, Jensen HK, Postema PG, Belhassen B, Chen SRW, Roberts JD. A Clinical Diagnostic Test for Calcium Release Deficiency Syndrome. JAMA. 2024 Jul 16;332(3):204-213. doi: 10.1001/jama.2024.8599.
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Public notes
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Contacts
Principal investigator
Name
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Thomas M Roston, MD, PhD
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Address
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University of British Columbia
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Jason D Roberts, MD MAS
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Address
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Country
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Phone
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905-297-3479
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT06508164
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