An Open Label Case Series of Glutathione Use for Symptomatic Management in Children with Autism Spectrum Disorder Autism Therapy Success Stories Grateful Care ABA Leucovorin and autism: A potential avenue for treatment, but more research is needed. Leucovorin is FDA approved for children with cerebral folate deficiency. However, the science is still evolving, and we need Hope is powerful but treatment decisions must be guided by science, not claims. Recent legal and medical decisions have reinforced an important fact: Stem cell therapy is not an approved clinical treatment