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FDA approves generic leucovorin only for rare cerebral folate deficiency, not autism.
The FDA has approved a generic version of leucovorin for treating a rare genetic disorder, cerebral folate deficiency caused by a mutation in the folate receptor 1 gene, affecting fewer than 1 in a million people.
The approval is limited to this specific condition, which causes neurological issues like seizures and developmental delays, not autism more broadly.
Despite earlier claims by officials that the drug could help many autistic children, the FDA stated its review found no sufficient evidence to support such use.
A key study cited in support was retracted, and major medical groups do not recommend routine use.
Prescriptions surged after a White House event, causing shortages and prompting the FDA to allow imports.
The underlying theory linking autism to folate-blocking antibodies remains unproven.
La FDA aprueba la leucovorina genérica sólo para la rara deficiencia de folato cerebral, no para el autismo.