NCT05004129 · AMO Pharma Limited
Safety and Efficacy of Tideglusib in Congenital or Childhood Onset Myotonic Dystrophy
(REACH CDM X)
What this study is about
This is an where both patients and doctors know the treatment given phase 2/3 study for individuals with Congenital Myotonic Dystrophy (Congenital DM1) who participated in the preceding AMO-02-MD-2-003 study or individuals with either Congenital or Childhood Onset DM1 who are treatment naïve.
View original scientific description
This is an open-label phase 2/3 study for individuals with Congenital Myotonic Dystrophy (Congenital DM1) who participated in the preceding AMO-02-MD-2-003 study or individuals with either Congenital or Childhood Onset DM1 who are treatment naïve.
Interventions
DRUG
Tideglusib
Tideglusib dosing will be weight-adjusted at 400 mg, 600 mg, or 1000 mg dose levels, or weight banded fixed doses of 400 mg, 600 mg, 800 mg or 1000 mg, with each subject starting at a weight-adjusted 400 mg dose level for 2 weeks, then up titrating to a weight-adjusted 600 mg dose level for the next 2 weeks.
Primary outcome measures
Safety (Adverse Events)
Time frame: 52 Weeks
The incidence of AEs, including SAEs, and abnormal findings in objective assessments (e.g. laboratory values, ECGs and vital signs) from Screening to Enrolment (where applicable), from Enrolment to End of Treatment (52 Weeks), and End of Treatment to the End of Follow-up period.
Safety (Adverse Events) - With Optional Expanded Access
Time frame: Week 60 and every 8 weeks thereafter up until discontinuation or study closure, assessed up to Week 132
The incidence of AEs, including SAEs, and abnormal findings in objective assessments (e.g. laboratory values, ECGs and vital signs) from End of Treatment to End of Optional Extended Access, and End of Optional Extended Access to the End of Follow-up period.
Clinician-Completed Congenital DM1 Rating Scale (CDM1-RS)
Time frame: 52 Weeks
The Clinician-completed Congenital DM1 Rating Scale is an 11-item rating scale completed by the clinician to score the symptom severity of domains that are clinically relevant in Congenital DM1.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Subjects who do not enter this study directly from completing the AMO-02-MD-2-003 study (i.e. subjects who did not complete AMO-02-MD-2-003, subjects who completed AMO-02-MD-2-003 but did not directly rollover or subjects who are re-entering AMO-02-MD-2-004), will not be considered eligible for the study without meeting all of the criteria below: 1. Subjects under study must be individuals with a diagnosis of Congenital or Childhood Onset DM1. 2. Diagnosis must be genetically confirmed 3. Subjects must be male or female aged ≥6 years to ≤45 years at Screening 4. Subjects must have a Clinical Global Impression - Severity (CGI-S) score of 3 or greater at Screening (V-1) 5. Written, voluntary informed consent must be obtained before any study related procedures are conducted. Where a parent or legally authorized representative (LAR) provides consent, there must also be assent from the subject (as required by local regulations) 6. Subject's caregiver must be willing a
Where
- Little Rock, Arkansas
- Los Angeles, California
- Palo Alto, California
- Chicago, Illinois
- Iowa City, Iowa
- Rochester, New York
- Pittsburgh, Pennsylvania
- Salt Lake City, Utah
- Norfolk, Virginia
- Richmond, Virginia
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced May 28, 2025 · Source of record for eligibility and locations