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NCT05662150

Low-frequency Repetitive Nerve Stimulation in Myotonic Dystrophy Type 1

Completed NA Last updated 22 December 2022
What this trial tests

NA trial testing Low frequency repetitive stimulation in Myotonic Dystrophy 1 in 9 participants. Completed in 20 June 2022.

Timeline
1 September 2021
Primary endpoint
11 June 2022
20 June 2022

Quick facts

Lead sponsorVrije Universiteit Brussel
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designsingle group
Maskingnone
Primary purposebasic science
Enrollment9
Start date1 September 2021
Primary completion11 June 2022
Estimated completion20 June 2022
Sites1 location across Belgium

Drugs / interventions tested

Conditions studied

Sponsor

Vrije Universiteit Brussel — full company profile →

Who can join

Eligibility, any sex, with Myotonic Dystrophy 1. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

The study design is a prospective cohort study. It aims to evaluate the neuromuscular junction in dystrophic myotonia 1 (DM 1) using low-frequency repetitive nerve stimulation (RNS) on several nerve-muscle pairs of the one side including proximal and distal muscles of upper and lower extremities. First, it will be investigated whether a decrement with 3 Hz stimulation, as described in literature, is reproducible in our patient population. If this is the case, it will be examined whether it is the consequence of a dysfunction of the neuromuscular junction or rather linked to a hypo-excitability of some muscle fibers due to myotonia. For this purpose, additional tests including short exercise test (to observe any decrement resulting from an inexcitability in myotonic muscle fibers) and needle EMG (for mapping myotonic discharges in the muscles tested with repetitive nerve stimulation) will be performed. Single fiber-EMG will not be provided in this study as an abnormal result does not necessarily indicate a dysfunction of the neuromuscular junction but could just as well be due to the muscular dystrophy in the context of DM1. Finally, it will be investigated if there is a correlation between the decrement with 3 Hz stimulation and clinical signs as fixed muscle weakness (via Medical Research Counsil (MRC) scale, DM-activ scale \[30\]) and fatigue (via MG-ADL scale).

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other recruiting trials for Myotonic Dystrophy 1

Currently open trials in the same condition.

Other Vrije Universiteit Brussel trials

Trials by the same sponsor.

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Data sources for this page

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