A Natural History Study of Adult Onset Pompe Disease Using Muscle MRI (POMPE 2013)

Study aim:

The principal objective of the study is to find biomarkers that quantify the natural progression of the disease and to know if they are useful to determine the improvement or lack of impairment of the disease in response to Enzyme Replacement Therapy (ERT).

Study design:

A single center observational prospective study.

Patients:

Patients with adult onset POMPE disease (onset of symptoms after two years old) and molecular diagnosis confirming the disease are eligible

Methods:

Clinical information will be obtained according to a pre-defined protocol including six visits: screening visit, baseline, 6 month, 12 month, 24 month and 36 month.

In each visit we will perform the following tests: clinical assessment (including interview with patients, quality of live questionnaires, timed tests and assessment of muscle balance using a myometer), analytical tests (blood and urine tests), cardiac test (Electrocardiogram (ECG) and cardiac echography), respiratory assessment (using spirometer) and skeletal muscle imaging (Muscle MRI).

All data collect will be introduced in a database and afterwards statistically analyzed.

Expected results:

We expect to find a biomarker useful to follow-up the progression of Pompe disease. This biomarker has to be sensitive to the changes that muscle function may have after treatment with ERT.

Funding:

This project is funded by Genzyme, a Sanofi company