Trial Readiness and Endpoint Assessment in Pediatric Myotonic Dystrophy Extension

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age3-17
SponsorVirginia Commonwealth University

About this trial

This is a natural history study to improve the types of assessments and biological samples that will be used in clinical drug trials in both congenital myotonic dystrophy and childhood myotonic dystrophy.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Age 5-17 years, 11 months at enrollment. Lower age limit not applicable for participants who have completed ASPIRE-DM1 protocol. Upper age limit not applicable for participants who previously participated in TREAT-01-001 (TREAT-CDM) study

A diagnosis of CDM, defined as: children having symptoms of myotonic dystrophy in the newborn period (<30 days), such as hypotonia, feeding or respiratory difficulty, requiring hospitalization to a ward or to the neonatal intensive care unit for more than 72 hours; and a genetic test confirming an expanded trinucleotide (CTG) repeat in the DMPK gene in the child or mother. An expanded CTG repeat size in the child is considered greater than 200 repeats or E1-E4 classification (E1= 200-500, E2=500-1,000, E3=1,000-1,500, E4>1,500).

Written, voluntary informed consent must be obtained before any study related procedures are conducted.

Age 3-17 years, 11 months at enrollment. Upper age limit not applicable for participants who previously participated in TREAT-01-001 (TREAT-CDM) study.

Disqualifiers

Any other non-DM1 illness that would interfere with the ability to undergo safe testing or would affect the interpretation of the results, in the opinion of the site investigator

Significant trauma within the past month

Internal metal or devices (exclusion for DEXA component)

Use of anticoagulants, such as warfarin or a direct oral anticoagulant (e.g., dabigatran) due to the increased risk of bleeding with biopsy

Trial population

The study will enroll up to 200 children with CDM and ChDM.

Trial design

Design model

Cohort

Time perspective

Prospective

Treatments tested in this trial

Not listed

Trial groups

200 Participants
are grouped into 2 trial groups
Group A: Congenital myotonic dystrophy (CDM)
Group B: Childhood Myotonic Dystrophy

Trial outcomes

Primary outcomes

1

Change in ambulation over 24 months as measured by the 10-Meter Walk/Run Test (10M WRT)

The participant will be timed walking or running along a 10-meter course. It is scored by recording the total time taken to ambulate 6 meters (m) is recorded to the nearest hundredth of a second. 6 m is then divided by the total time (in seconds) taken to ambulate and recorded in m/s.

Time frame
Baseline, Month 12 and Month 24 visits
2

Change in mobility (100-meter timed test)

Mobility will be measured using the 100 Meter Timed Test (100m) in which the participant is asked to complete 2 laps around 2 cones set 25 meters apart as quickly as safely possible, running if able. The total time in seconds is recorded from when the participant starts walking until they break the plane of the 100 meter mark (i.e., when any part of the body passes the 100 meter mark).

Time frame
Baseline, Month 12 and Month 24 visits
3

Change in Time to Stand (SUPINE TO STAND test)

Participant will be timed transitioning from a supine position to standing. The participant will complete one trial of this test. The test measures the participant's ability to quickly rise from a supine position on the floor with arms at their sides, to full upright posture with arms at their sides. This should be performed without external support from another person, a device, or furniture. Results will be reported in seconds.

Time frame
Baseline, Month 12 and Month 24 visits
4

Change in Gross Motor Function (GMFM-88)

The Gross Motor Function Measure (GMFM-88) is an assessment tool originally designed and evaluated to measure changes in gross motor function over time or with intervention in children with cerebral palsy. The GMFM assesses functional abilities including; lying/rolling, sitting, crawling/kneeling, standing, and walking/running/jumping. A four-point ordinal scale of measurement is used to assess each item, higher scores denote better performance. A score of 4 on an item indicates a consistently normal response, a score \> 4 indicates persistent hypertonus, and a score \< 4 indicates various degrees of hypotonus.

Time frame
Baseline, Month 12 and Month 24 visits

Secondary outcomes

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

Virginia Commonwealth University

Lead sponsor

National Institute of Neurological Disorders and Stroke (NINDS)

Collaborator

SUNY Research Foundation

Collaborator

University of Minnesota

Collaborator

Roseman University of Health Sciences

Collaborator

University of California, San Diego

Collaborator

University of Glasgow

Collaborator

University of Kansas Medical Center

Collaborator