- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06174220
Targeted Therapy With Glycogen Synthase Kinase-3 Inhibition for Arrhythmogenic Cardiomyopathy (TaRGET)
Study Overview
Status
Intervention / Treatment
Detailed Description
Arrhythmogenic cardiomyopathy (ACM) is a heritable form of structural heart disease characterized by myocardial fibrosis that confers vulnerability to malignant ventricular arrhythmias and sudden cardiac death (SCD). A subgroup of cases preferentially involves the right ventricle and is termed arrhythmogenic right ventricular cardiomyopathy (ARVC). Although an increasingly diverse set of genes have been implicated in ACM, its most prominent genetic culprits are constituents of the desmosome, a specialized cellular structure within the intercalated disc that mediates intercellular adhesion. An additional ACM genetic subtype develops secondary to the TMEM43-p.S358L variant and is associated with an aggressive clinical phenotype, particularly among males.
Despite dramatic progress in unravelling the genetic underpinnings of ACM, insight into its pathophysiology remains modest. A lack of understanding of its operative biological pathways has rendered development of tailored treatments challenging, leading to approaches to medical therapy being largely adopted from those utilized for more common forms of cardiomyopathy. An implantable cardioverter defibrillator (ICD) is recommended for prevention of SCD for all ACM patients considered high risk for malignant ventricular arrhythmias, however does not address its underlying pathophysiology. Subsequent prevention of painful ICD shocks for ventricular tachycardia often requires interventions that may carry modest efficacy and significant risks for adverse events, including anti-arrhythmic drugs and invasive combined endo- and epicardial catheter ablation procedures.
In 2014, a high-throughput screen of a library of bioactive compounds against a zebrafish model of ACM identified a small molecule classified as a glycogen synthase kinase-3 (GSK3) inhibitor that successfully prevented and rescued the phenotype, findings that have subsequently been reproduced in a series of ACM murine models. GSK3 is an enzyme that modulates the activity of a broad spectrum of intracellular signaling pathways, including the canonical Wnt/β-catenin pathway, whose suppression has been suggested to exert an important role in ACM pathogenesis.
Tideglusib is an oral GSK3β inhibitor with an established safety profile in humans. Driven by promising findings observed for tideglusib in ACM mouse models, we now seek to evaluate its potential efficacy in a randomized clinical trial involving genotype positive ACM patients.
Study Type
Enrollment (Estimated)
Phase
- Phase 2
Contacts and Locations
Study Locations
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Alberta
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Calgary, Alberta, Canada, T2N 2T9
- Foothills Medical Centre
-
Principal Investigator:
- Erkan Ilhan, MD
-
Sub-Investigator:
- Patrick Champagne, MD
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British Columbia
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Vancouver, British Columbia, Canada, V6Z 1Y6
- St. Paul's Hospital
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Principal Investigator:
- Thomas M Roston, MD PhD
-
Principal Investigator:
- Zachary Laksman, MD MSc
-
Principal Investigator:
- Andrew D Krahn, MD
-
Sub-Investigator:
- Gnalini Sathananthan, MD
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Victoria, British Columbia, Canada, V8Z 0B9
- Victoria Cardiac Arrhythmia Trials Inc.
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Contact:
- Rona Herzog
- Email: rherzog@catrials.org
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Principal Investigator:
- Martin van Zyl, MD
-
Sub-Investigator:
- Karan Shetty, MD
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Manitoba
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Winnipeg, Manitoba, Canada, R2H 2A6
- Saint Boniface Hospital
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Principal Investigator:
- Collette Seifer, MD
-
Principal Investigator:
- Clarence Khoo, MD
-
Sub-Investigator:
- Steven Promislow, MD
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Newfoundland and Labrador
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St John's, Newfoundland and Labrador, Canada, A1B 3V6
- Health Sciences Centre
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Principal Investigator:
- Stephen Duffett, MD
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Principal Investigator:
- Sean Connors, MD
-
Principal Investigator:
- Kathy Hodgkinson, PhD
-
Sub-Investigator:
- Ashar Pirzada, MD
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Nova Scotia
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Halifax, Nova Scotia, Canada, B3H 2Y9
- Queen Elizabeth II Health Sciences Centre
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Principal Investigator:
- Ciorsti MacIntyre, MD
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Principal Investigator:
- David Lee, MD
-
Sub-Investigator:
- Daniel Belliveau, MD
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Ontario
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Hamilton, Ontario, Canada, L8L 2X2
- Hamilton General Hospital
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Principal Investigator:
- Jason D Roberts, MD MAS
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Principal Investigator:
- Jeff S Healey, MD
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Sub-Investigator:
- Javier Ganame, MD
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Kingston, Ontario, Canada, K7L 2V7
- Kingston General Hospital
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Principal Investigator:
- Chris Simpson, MD
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Sub-Investigator:
- Amar Thakrar, MD
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London, Ontario, Canada, N6A 5A5
- London Health Sciences Centre
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Principal Investigator:
- Habib R Khan, MD
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Newmarket, Ontario, Canada, L3Y 2P9
- Southlake Regional Health Centre
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Principal Investigator:
- Mouhannad Sadek, MD
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Sub-Investigator:
- Molly Thangaroopan, MD
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Ottawa, Ontario, Canada, K1Y 4W7
- University of Ottawa Heart Institute
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Principal Investigator:
- Simon Hansom, MD
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Principal Investigator:
- Martin Green, MD
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Sub-Investigator:
- Lawrence Lau, MD
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Scarborough, Ontario, Canada, M1E 4B9
- Scarborough Health Network
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Principal Investigator:
- Derek Yung, MD
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Principal Investigator:
- Bhavanesh Makanjee, MD
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Sub-Investigator:
- Natalie Ho, MD
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Toronto, Ontario, Canada, M4N 3M5
- Sunnybrook Health Sciences Centre
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Principal Investigator:
- Christopher Cheung, MD
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Sub-Investigator:
- Idan Roifman, MD
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Toronto, Ontario, Canada, M5B 1W8
- St. Michael's Hospital
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Sub-Investigator:
- Geraldine Ong, MD
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Principal Investigator:
- Paul Angaran, MD
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Toronto, Ontario, Canada, M5G 2C4
- Toronto General Hospital
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Principal Investigator:
- Michael H Gollob, MD
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Principal Investigator:
- Danna Spears, MD
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Sub-Investigator:
- Anna Woo, MD
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Quebec
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Montréal, Quebec, Canada, H4J 1C5
- Hôpital du Sacré-Coeur de Montréal
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Principal Investigator:
- Leila Laroussi, MD
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Principal Investigator:
- Alexios Hadjis, MD
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Sub-Investigator:
- Nadia Boule-Laghlazi, MD
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Montréal, Quebec, Canada, H1T 1C8
- Montreal Heart Institute
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Principal Investigator:
- Julia Cadrin-Tourigny, MD PhD
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Principal Investigator:
- Rafik Tadros, MD PhD
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Sub-Investigator:
- Marie Chaix, MD
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Montréal, Quebec, Canada, H4A 3J1
- McGill University Health Centre
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Principal Investigator:
- Jacqueline Joza, MD
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Sub-Investigator:
- Michael Chetrit, MD
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Québec City, Quebec, Canada, G1V 4G5
- University Institute of Cardiology and Pneumology of Quebec
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Sub-Investigator:
- Jonathan Beaudoin, MD
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Principal Investigator:
- Christian Steinberg, MD
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
A pathogenic or likely pathogenic desmosomal (PKP2, DSG2, DSC2, DSP, or JUP*) rare variant OR the TMEM43-p.S358L variant
*JUP carriers must be homozygous or compound heterozygous
- Mean ≥ 500 PVCs per 24 hours on a baseline screening 7-day Holter monitor
- Clinical ACM diagnosis or recognition of genetic carrier status for ≥ 6 months prior to screening
Exclusion Criteria:
- NYHA class IV heart failure
- Ventricular scar secondary to coronary artery disease
- Initiation, cessation, or dose change of a Class I or III anti-arrhythmic drug in the 3 months prior to screening
- Any potentially harmful chronic liver disease
- ALT value > 2X the upper limit of the normal reference range at Screening
- Total bilirubin value greater than the upper limit of the normal reference range at Screening, unless documented Gilbert's syndrome. For individuals with Gilbert's syndrome, total bilirubin value greater than 2-fold the upper limit of the normal reference range at Screening.
- A history of alcohol or illicit substance use disorders
- Regular and long-term use of strong CYP3A4 inhibitors, including clarithromycin, telithromycin, ketoconazole, itraconazole, posaconazole, nefazodone, idinavir and ritonavir
- Serum creatinine > 150 micromole/L or creatinine clearance ≤ 60 mL/min (according to Cockcroft-Gault formula) at Screening
- Pregnant at time of enrollment and women of childbearing age who do not use a highly effective form of contraception
- Males, engaged in sexual relations with a female of child-bearing potential, not using an acceptable contraceptive method if not surgically sterile
- Patients unwilling to provide informed consent or comply with follow-up
- Hypersensitivity to tideglusib or any components of its formulation, including allergy to strawberry
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Quadruple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Tideglusib
Randomization to Tideglusib 1g po daily or matching placebo
|
Tideglusib 1g po daily
|
Placebo Comparator: Placebo
Randomization to matching placebo 1g po daily
|
Matching placebo 1g po daily
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
PVC burden
Time Frame: Baseline and 6 months
|
Change in mean PVC count per 24 hours on 7-day Holter
|
Baseline and 6 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Ventricular strain
Time Frame: Baseline and 6 months
|
Change in ventricular strain on echocardiography
|
Baseline and 6 months
|
Implantable cardioverter-defibrillator (ICD) therapies
Time Frame: Baseline and 6 months
|
Number of ICD therapies (shock or anti-tachycardia pacing)
|
Baseline and 6 months
|
Sustained ventricular tachycardia (VT) events
Time Frame: Baseline and 6 months
|
Number of sustained VT events (defined as symptomatic or duration > 30 seconds and > 100bpm)
|
Baseline and 6 months
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Jason D Roberts, MD MAS, McMaster University and Population Health Research Institute
- Study Chair: Stuart J Connolly, MD, McMaster University and Population Health Research Institute
Publications and helpful links
General Publications
- Krahn AD, Wilde AAM, Calkins H, La Gerche A, Cadrin-Tourigny J, Roberts JD, Han HC. Arrhythmogenic Right Ventricular Cardiomyopathy. JACC Clin Electrophysiol. 2022 Apr;8(4):533-553. doi: 10.1016/j.jacep.2021.12.002.
- Asimaki A, Kapoor S, Plovie E, Karin Arndt A, Adams E, Liu Z, James CA, Judge DP, Calkins H, Churko J, Wu JC, MacRae CA, Kleber AG, Saffitz JE. Identification of a new modulator of the intercalated disc in a zebrafish model of arrhythmogenic cardiomyopathy. Sci Transl Med. 2014 Jun 11;6(240):240ra74. doi: 10.1126/scitranslmed.3008008. Erratum In: Sci Transl Med. 2014 Nov 5;6(261):261er6.
- Chelko SP, Asimaki A, Andersen P, Bedja D, Amat-Alarcon N, DeMazumder D, Jasti R, MacRae CA, Leber R, Kleber AG, Saffitz JE, Judge DP. Central role for GSK3beta in the pathogenesis of arrhythmogenic cardiomyopathy. JCI Insight. 2016 Apr 21;1(5):e85923. doi: 10.1172/jci.insight.85923.
- Roberts JD, Murphy NP, Hamilton RM, Lubbers ER, James CA, Kline CF, Gollob MH, Krahn AD, Sturm AC, Musa H, El-Refaey M, Koenig S, Aneq MA, Hoorntje ET, Graw SL, Davies RW, Rafiq MA, Koopmann TT, Aafaqi S, Fatah M, Chiasson DA, Taylor MR, Simmons SL, Han M, van Opbergen CJ, Wold LE, Sinagra G, Mittal K, Tichnell C, Murray B, Codima A, Nazer B, Nguyen DT, Marcus FI, Sobriera N, Lodder EM, van den Berg MP, Spears DA, Robinson JF, Ursell PC, Green AK, Skanes AC, Tang AS, Gardner MJ, Hegele RA, van Veen TA, Wilde AA, Healey JS, Janssen PM, Mestroni L, van Tintelen JP, Calkins H, Judge DP, Hund TJ, Scheinman MM, Mohler PJ. Ankyrin-B dysfunction predisposes to arrhythmogenic cardiomyopathy and is amenable to therapy. J Clin Invest. 2019 Jul 2;129(8):3171-3184. doi: 10.1172/JCI125538. eCollection 2019 Jul 2.
- Padron-Barthe L, Villalba-Orero M, Gomez-Salinero JM, Dominguez F, Roman M, Larrasa-Alonso J, Ortiz-Sanchez P, Martinez F, Lopez-Olaneta M, Bonzon-Kulichenko E, Vazquez J, Marti-Gomez C, Santiago DJ, Prados B, Giovinazzo G, Gomez-Gaviro MV, Priori S, Garcia-Pavia P, Lara-Pezzi E. Severe Cardiac Dysfunction and Death Caused by Arrhythmogenic Right Ventricular Cardiomyopathy Type 5 Are Improved by Inhibition of Glycogen Synthase Kinase-3beta. Circulation. 2019 Oct;140(14):1188-1204. doi: 10.1161/CIRCULATIONAHA.119.040366. Epub 2019 Sep 5.
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- PHRI.TaRGET
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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