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FDA Doesn’t Endorse Leucovorin for Autism, OKs It for Rare Brain Disorder

Rubenhair Latvia
2 min read
02.03.2026
FDA Doesn’t Endorse Leucovorin for Autism, OKs It for Rare Brain Disorder

rephrased article: **New Treatment Option for Rare Neurological Disorder** The Food and Drug Administration (FDA) has recently approved a medication called leucovorin to treat cerebral folate deficiency, a rare neurological disorder.

rephrased article: **New Treatment Option for Rare Neurological Disorder**

The Food and Drug Administration (FDA) has recently approved a medication called leucovorin to treat cerebral folate deficiency, a rare neurological disorder. This approval marks a significant milestone in providing relief for individuals affected by this condition.

What is Leucovorin?

Leucovorin is a prescription medication primarily used to alleviate the side effects of chemotherapy agents such as methotrexate. It works by restoring folic acid to healthy cells that have been depleted by chemotherapy, making it an effective "rescue agent" for patients undergoing certain types of treatment.

Cerebral Folate Deficiency: A Rare but Serious Condition

Cerebral folate deficiency is a condition characterized by low levels of vitamin B9 in the brain. It can cause developmental delays, seizures, and movement abnormalities in young children. Estimated to affect approximately 1 in 1 million people worldwide, cerebral folate deficiency has been linked to autism in some studies, although more research is needed to confirm this association.

Expert Insights on Leucovorin and Cerebral Folate Deficiency

Alycia Halladay, MD, Chief Science Officer for the Autism Science Foundation, welcomes the approval of leucovorin as a treatment option for cerebral folate deficiency. "This will probably help them," she says. "The mechanism is there." Antonio Hardan, MD, Professor of Psychiatry and Behavioral Sciences at Stanford University, emphasizes the importance of early intervention with leucovorin to achieve optimal results.

Important Note on Leucovorin and Autism Treatment

While some officials have suggested that leucovorin may be used as a treatment for autism, more research is needed before it can be approved for this purpose. The FDA has not yet announced any plans to approve leucovorin specifically for autism treatment.

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