Actively Recruiting

Phase 2
Age: 18Years +
All Genders
ID06174220

Targeted Therapy With Glycogen Synthase Kinase-3 Inhibition for Arrhythmogenic Cardiomyopathy

Led by Hamilton Health Sciences Corporation · Updated on 2026-03-12

120

Participants Needed

17

Research Sites

21 weeks

Total Duration

On this page

Sponsors

H

Hamilton Health Sciences Corporation

Lead Sponsor

C

Canadian Institutes of Health Research (CIHR)

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are investigating the potential benefits of tideglusib, a drug that inhibits glycogen synthase kinase-3 beta, in patients with arrhythmogenic cardiomyopathy (ACM), a genetic heart disease that increases the risk of dangerous heart rhythms and sudden cardiac death. This phase 2 study focuses on patients with specific genetic variants linked to ACM and aims to better understand how tideglusib might affect the disease. The trial is randomized, double-blind, and placebo-controlled to ensure reliable results. Participants are randomly assigned to receive either tideglusib 1 gram by mouth daily or a matching placebo for six months. The study compares the effects of this treatment on heart rhythm irregularities and heart function. The treatment phase is followed by assessments to monitor changes in premature ventricular contractions and other heart-related outcomes. Throughout the study, participants will undergo evaluations including heart rhythm monitoring using Holter devices, assessments of ventricular strain, and tracking of implantable cardioverter-defibrillator (ICD) therapies. Researchers will measure the number of premature ventricular contractions and episodes of sustained ventricular tachycardia before and after six months of treatment. Safety and adherence will be monitored during this period, and the total participation lasts approximately six months.

CONDITIONS

Brief Title

Targeted Therapy With Glycogen Synthase Kinase-3 Inhibition for Arrhythmogenic Cardiomyopathy

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Have a pathogenic or likely pathogenic desmosomal gene variant (PKP2, DSG2, DSC2, DSP, or JUP) or the TMEM43-p.S358L variant
  • JUP gene carriers must be homozygous or compound heterozygous
  • Have an average of at least 500 premature ventricular contractions in 24 hours on a baseline 7-day Holter monitor
  • Have a clinical diagnosis of arrhythmogenic cardiomyopathy or known genetic carrier status for at least 6 months before screening
  • Be 18 years of age or older
Not Eligible

You will not qualify if you...

  • Have NYHA class IV heart failure
  • Have ventricular scar caused by coronary artery disease
  • Changed dose or started/stopped Class I or III anti-arrhythmic drugs within 3 months before screening
  • Have any harmful chronic liver disease
  • Have ALT blood levels more than twice the normal upper limit at screening
  • Have total bilirubin levels above normal limits at screening (except if Gilbert's syndrome, then more than twice the normal limit)
  • Have a history of alcohol or illicit substance use disorders
  • Regularly use strong CYP3A4 inhibitors such as clarithromycin, ketoconazole, or ritonavir
  • Have serum creatinine above 150 micromoles/L or creatinine clearance 60 mL/min or less at screening
  • Are pregnant or, if female of childbearing potential, do not use highly effective contraception
  • Are male and have sexual relations with females of childbearing potential without acceptable contraception if not surgically sterile
  • Are unwilling to give informed consent or follow study procedures
  • Are allergic to tideglusib or any of its ingredients, including strawberry allergy
  • Use drugs metabolized by CYP3A4 with a narrow therapeutic range, like warfarin or digoxin concurrently

AI-Screening

AI-Powered Screening

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - 6 months

Participants receive either Tideglusib or a matching placebo daily to evaluate the effects on arrhythmogenic cardiomyopathy.

Regular visits to monitor treatment effects and safety

Trial Site Locations

Total: 17 locations

1

University of Calgary

Calgary, Alberta, Canada, T2N 2T9

Actively Recruiting

2

University of British Columbia

Vancouver, British Columbia, Canada, V6Z 1Y6

Actively Recruiting

3

Victoria Cardiac Arrhythmia Trials Inc.

Victoria, British Columbia, Canada, V8Z 0B9

Actively Recruiting

4

NL Health Services

St. John's, Newfoundland and Labrador, Canada, A1B 3V6

Actively Recruiting

5

Nova Scotia Health

Halifax, Nova Scotia, Canada, B3H 2Y9

Actively Recruiting

6

Hamilton General Hospital

Hamilton, Ontario, Canada, L8L 2X2

Actively Recruiting

7

Kingston General Hospital

Kingston, Ontario, Canada, K7L 2V7

Not Yet Recruiting

8

London Health Sciences Centre

London, Ontario, Canada, N6A 5A5

Actively Recruiting

9

Newmarket Electrophysiologist Research Group 'NERG'

Newmarket, Ontario, Canada, L3Y 2P9

Not Yet Recruiting

10

University of Ottawa Heart Institute

Ottawa, Ontario, Canada, K1Y 4W7

Not Yet Recruiting

11

Heart Health Institute Research Inc

Scarborough Village, Ontario, Canada, M1E 4B9

Actively Recruiting

12

Sunnybrook Health Sciences Centre

Toronto, Ontario, Canada, M4N 3M5

Not Yet Recruiting

13

St. Michael's Hospital

Toronto, Ontario, Canada, M5B 1W8

Not Yet Recruiting

14

Montreal Heart Institute

Montreal, Quebec, Canada, H1T 1C8

Actively Recruiting

15

McGill University Health Centre

Montreal, Quebec, Canada, H4A 3J1

Not Yet Recruiting

16

Hopital du Sacré-Coeur de Montréal

Montreal, Quebec, Canada, H4J 1C5

Not Yet Recruiting

17

University Institute of Cardiology and Pneumology of Quebec

Québec, Quebec, Canada, G1V 4G5

Actively Recruiting

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Research Team

J

Jason Roberts, MD MAS

M

Maha Mushtaha

How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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Published Research Related To This Trial

Severe Cardiac Dysfunction and Death Caused by Arrhythmogenic Right Ventricular Cardiomyopathy Type 5 Are Improved by Inhibition of Glycogen Synthase Kinase-3β.

Laura Padrón-Barthe, María Villalba-Orero, Jesús M Gómez-Salinero...

https://pubmed.ncbi.nlm.nih.gov/31567019