Exercise Creatine and Coenzyme Q10 for Childhood Myositis

  • End date
    Mar 31, 2023
  • participants needed
  • sponsor
    The Hospital for Sick Children
Updated on 6 May 2021


Children with JDM are weak and get tired because their muscles aren't able to work like healthy muscles. This can make it hard for them to do normal everyday things and can make them less happy about their lives compared to children without the disease. There are two nutritional supplements that help muscles use energy and recover after exercise: creatine and coenzyme Q10. If the muscle has more energy, it may not be as weak and may not feel as tired or sore after exercise. Because of this we want to see if having children with JDM take creatine and coenzyme Q10 can make them stronger and less tired. If this works, we hope it will let them be able to do the things that healthy children can do, and make them feel better about their lives.

Condition Myositis, Juvenile, Myositis, Juvenile, Myositis, Juvenile, Myositis, Juvenile
Treatment Exercise, Ubiquinol, Creatine Monohydrate, glucose tablet, gel capsule
Clinical Study IdentifierNCT04286178
SponsorThe Hospital for Sick Children
Last Modified on6 May 2021


Yes No Not Sure

Inclusion Criteria

Ages 7 to 18 years
Diagnosis of juvenile dermatomyositis (JDM) according to the 2017 European League Against Rheumatism (EULAR)/American College of Rheumatology (ACR) criteria: 90% probability, age of onset <18 years
Subjects on a stable course of medication (unlikely to change over study treatment period as determined by treating physician)
Minimum height of 132.5cm (required to fit on the cycle ergometer)

Exclusion Criteria

Subjects with newly diagnosed JDM within the previous 6 months
Subjects unable to cooperate with study procedures, or too weak to participate in the exercise testing
Subjects with impaired kidney function as determined from pre-baseline visit screening lab values (eGFR <90 ml/min/1.73m^2)
Subjects currently taking anti-hypertensive drugs or blood thinners
Subjects who are currently pregnant or planning to become pregnant within the study period
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