The drug leucovorin was touted by the Trump administration in September as a possible remedy for 1000’s of youngsters with autism. Now, some dad and mom and guardians of youngsters with autism say they really feel deserted by the US Food and Drug Administration’s new stance on leucovorin.
“I bet some probably feel betrayed. I kind of do,” Keith Joyce, 60, stated. He is the guardian of a 5-year-old with autism who takes the drug. He added: “I kind of felt vindicated with what I was doing. But now they’re saying, ‘Oh, nope, we’re out, and we were wrong.’ ”
Instead increasing entry to leucovorin for “hundreds of thousands” of youngsters with autism, the FDA on Tuesday made a narrower approval of the drug for folks with a uncommon genetic illness. Fewer than 50 circumstances of the situation — cerebral folate deficiency in the folate receptor 1 gene — have been identified worldwide.
Senior FDA officers stated this week that there isn’t “sufficient data” that leucovorin is a possible remedy for autism.
“It’ll be up to patients to talk with their physicians to just see if [leucovorin] might be right for them,” one senior official stated.
“We don’t have the evidence now for a broader approval,” one other official added.
Clinicians stated the FDA’s determination itself isn’t controversial. Autism consultants instructed NCS that they applauded the transfer, describing it as an evidence-based strategy to remedy.
“Today’s decision by the FDA reflects what the science has indicated so far: that evidence for leucovorin as an effective treatment for autism remains limited,” Andy Shih, the chief science officer at the nonprofit advocacy group Autism Speaks wrote in an announcement to NCS. “We understand that some families may feel disappointed by this news.”
He added: “Families are always searching for ways to support their child, and early reports about the promise of leucovorin brought hope to many.”
Meagan Johnson, a mother in Pflugerville, Texas, who not too long ago struggled to search out the treatment for her 3-year-old son Jack, instructed NCS she feels damage by the determination after a lot hope was pinned on leucovorin.
“I’m frustrated with the administration,” she stated. “I’m tired of them coming out and prematurely saying things without the information to back it.”
Health officers endorsed leucovorin final fall — and phrase unfold shortly, spurring curiosity in the drug. A paper revealed final week discovered that prescriptions rose in the previous couple of months of 2025, although skilled societies like the American Academy of Pediatrics recommended against utilizing leucovorin to deal with autism.
Leucovorin endorsement for autism by FDA falls by. What’s subsequent?
In September, officers touted leucovorin as a possible remedy for 1000’s of youngsters with autism. Now the FDA is strolling back from that declare as the drug is accepted for a uncommon genetic situation, not autism. NCS’s Meg Tirrell reviews.
Bhooshan Sawant, the CEO of ReligenDX — an organization that produces the folate receptor autoantibody check, which was popularized in the wake of the White House announcement and is used by many docs who prescribe leucovorin — additionally famous a pointy uptick in curiosity.
The check isn’t coated by insurance coverage and costs almost $300. The broader analysis neighborhood does not recommend the check, calling it inaccurate and experimental, and pointing to evidence that spinal faucets are extra correct. Sawant maintains that the check is correct and dependable however says he want to see extra analysis.
ReligenDX says that in contrast with January 2025 averages, it started processing seven instances extra exams at the top of the frenzy. Now, it says it remained at about 1,600 exams per 30 days: six instances increased than month-to-month averages earlier than leucovorin gained widespread consideration.
It’s unclear whether or not all these sufferers obtain a prescription after the check, however some consultants stated the information and anecdotal proof recommend that curiosity in leucovorin is unlikely to wane anytime quickly.
“I have days in clinic where every single family is asking about it,” stated Dr. Audrey Brumback, a pediatric neurologist at the University of Texas at Austin Dell Medical School. “People know about this and are asking about it.”
But others like Dr. Helen Tager-Flusberg, an autism researcher at Boston University, are extra optimistic that the tide on leucovorin use might flip in the different route a lot sooner if extra federal officers reinforce the FDA’s message.
“My great aspiration is that other parts of Health and Human Services will follow suit,” Tager-Flusberg stated. “I hope the FDA continues on the path that they started today.”

Joyce says 5-year-old Jose Morales-Ortiz began taking leucovorin final yr. The little one was nonverbal earlier than remedy, he stated, however slowly improved. Joyce attributes that to the drug and stated Morales-Ortiz can now say eight phrases.
But Joyce now worries that after the FDA’s determination, extra docs — together with Morales-Ortiz’s — could also be much less keen to prescribe the drug. Many dad and mom are already struggling to search out suppliers keen to put in writing a prescription. Drug shortages are additionally making it troublesome to trace down the treatment, although FDA officers stated the provide stays secure.
Sawant, the proprietor of the testing firm — and a proponent of leucovorin — fears that some physicians might interpret the FDA’s announcement as a motive to cease prescribing leucovorin.
A smaller pool of docs keen to prescribe the drug can create a gap for unconventional suppliers to step in and reap the benefits of families.
Some dad and mom pay 1000’s to get a prescription — one thing Dr. Sarah Mohiuddin, a clinician who runs the Multidisciplinary Autism Program at Michigan Medicine, warns about.
“Unfortunately, there are bad-faith players out there who might take advantage of people’s situation,” Mohiuddin stated. She not too long ago launched an initiative to enhance communication between clinicians and oldsters of youngsters with autism. “I think there are opportunities to continue to partner with the medical community.”
While the drug is taken into account secure, Brumback warned that doses given to most youngsters will be 100 instances higher than the really helpful each day requirement of folate — the energetic ingredient in leucovorin. And a lot stays unknown about its long-term results. Parents who decide to pursue leucovorin remedy should work intently with a specialist.
Guidance published on Tuesday by the Child Neurology Society says that enhancements dad and mom discover with leucovorin might merely replicate regular growth slightly than the drug’s results — one thing a specialist may help decide.
Regardless of their determination about leucovorin, Brumback stated, dad and mom should additionally work with a specialist to discover a therapeutic plan that works for their little one. For some, that would imply extra genetic testing or discovering methods to enhance high quality of life. Additional helps that assist youngsters develop abilities, like utilized habits evaluation remedy, are equally vital.
“We are all frustrated that we don’t have a treatment for autism,” Brumback stated.
But she doesn’t view extra scientific trials on leucovorin as the path ahead, given the restricted proof supporting its use. “If we do a big scientific trial, it gained’t be motivated by science, it’ll be motivated by the want for the public to have a definitive reply for one thing that wasn’t actually a query in the first place.
“Coming to see me in clinic and having us talk about it, I think that that’s the thing that I really want families to walk away with,” Brumback stated. “We’re here to help. We’re not the enemy.”
NCS’s Meg Tirrell and Brenda Goodman contributed to this report.