Clinical trial Recruiting at 10 sites Phase 2 Interventional Ages 18 and up

Targeted therapy for arrhythmogenic cardiomyopathy using tideglusib

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

Run by Hamilton Health Sciences Corporation · NCT06174220 · Data updated 2026-11-12

This study is testing a new medication called tideglusib to see if it can help people with a specific genetic type of arrhythmogenic cardiomyopathy feel better and reduce their risk of serious heart problems.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment120 (estimated)
SponsorHamilton Health Sciences Corporation
Academic / other
Locations17 sites (Calgary, Alberta and 16 other locations)
StatusRecruiting
StartedMarch 21, 2025
Main results expectedFebruary 1, 2027
Study endsJuly 1, 2027
Registry record updatedMarch 12, 2026
Trial IDNCT06174220 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are individuals with a pathogenic or likely pathogenic desmosomal variant or the TMEM43-p.S358L variant, along with a clinical diagnosis of ACM.

Probably not a fit

Patients with NYHA class IV heart failure or those with ventricular scar secondary to coronary artery disease may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the efficacy of tideglusib, a glycogen synthase kinase-3 β inhibitor, in patients with genotype positive arrhythmogenic cardiomyopathy (ACM). It is a multi-centre, prospective, randomized, double-blind, placebo-controlled trial designed to assess how this targeted therapy can address the underlying pathophysiology of ACM, which is characterized by myocardial fibrosis and a risk of sudden cardiac death. The study aims to recruit patients with specific genetic variants associated with ACM and monitor their response to treatment over time.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce the risk of sudden cardiac death in patients with arrhythmogenic cardiomyopathy.

How similar studies have gone: While there has been progress in understanding ACM, this specific approach using glycogen synthase kinase-3 inhibition is novel and has not been extensively tested in prior studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
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
* Concurrent use of drugs metabolized by CYP3A4 with a narrow therapeutic window e.g. warfarin and digoxin

Where it's running

  • University of Calgary
    Calgary, Alberta, Canada
    Recruiting
  • University of British Columbia
    Vancouver, British Columbia, Canada
    Recruiting
  • Victoria Cardiac Arrhythmia Trials Inc.
    Victoria, British Columbia, Canada
    Recruiting
  • NL Health Services
    St. John's, Newfoundland and Labrador, Canada
    Recruiting
  • Nova Scotia Health
    Halifax, Nova Scotia, Canada
    Recruiting
  • Hamilton General Hospital
    Hamilton, Ontario, Canada
    Recruiting
Show 11 more locations
  • London Health Sciences Centre
    London, Ontario, Canada
    Recruiting
  • Heart Health Institute Research Inc
    Scarborough Village, Ontario, Canada
    Recruiting
  • Montreal Heart Institute
    Montreal, Quebec, Canada
    Recruiting
  • University Institute of Cardiology and Pneumology of Quebec
    Québec, Quebec, Canada
    Recruiting
  • Kingston General Hospital
    Kingston, Ontario, Canada
    Not yet recruiting
  • Newmarket Electrophysiologist Research Group 'NERG'
    Newmarket, Ontario, Canada
    Not yet recruiting
  • University of Ottawa Heart Institute
    Ottawa, Ontario, Canada
    Not yet recruiting
  • Sunnybrook Health Sciences Centre
    Toronto, Ontario, Canada
    Not yet recruiting
  • St. Michael's Hospital
    Toronto, Ontario, Canada
    Not yet recruiting
  • McGill University Health Centre
    Montreal, Quebec, Canada
    Not yet recruiting
  • Hopital du Sacré-Coeur de Montréal
    Montreal, Quebec, Canada
    Not yet recruiting

Study contacts

  • Principal investigator: Jason D Roberts, MD MAS — McMaster University and Population Health Research Institute
  • Study coordinator: Jason Roberts, MD MAS
  • Email: jason.roberts@phri.ca
  • Phone: 905-521-2100

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.