As far as 2010 the Limb girdle muscular distrophy (LGMD) was considered a neglected pathology, this means that there was no scientific research on the disease. There were no specific organizations for this disease and clinical studies on patients were very few.
There is currently only one research project for LGMD2E or LGMDR4, based on gene therapy and, at the moment, the first clinical trial on patients is underway, by Sarepta Therapeutics. You can see the trial structure on clinicaltrials.gov at the following link:
https://clinicaltrials.gov/ct2/show/NCT03652259?cond=lgmd2e&draw=2&rank=2
There are no registries for LGMD2E or LGMDR4 and other forms of LGMD2D or LGMDR3 and 2C or LGMDR5. Other gene therapy studies on LGMD2D or LGMDR3 and 2C or LGMDR5 are ongoing and very soon clinical trials phase 1 will start. You can find further information on GFB site at the following link:
http://www.beta-sarcoglicanopathy.org/scientific-research.html
At present, GFB is the only existing organization dealing with LGMD2E or LGMDR4. For the last 11 years, GFB have been concerned in looking for other families affected by this disease and, nowadays, we are in contact with more than 600 patients, all over the world and belonging to different groups. We strongly believe that together we can do more!