How close are doctors to finding a cure to lou gehrig's disease?

Not close: We have learned that some cases are associated with fronto-temporal dementias rarely, and some cases cluster in certain areas of the world. We do know that it is a disorder of "misfolded proteins" (superoxide dismutase), but we only have palliative meds and approaches. Lastly, ALS was thot to cause lou gehrig's demise, but this is being reassessed.