A 13-year-old boy has become the first person to be cured of this deadly brain cancer
A 13-year-old boy has become the first person to be cured of this deadly brain cancer
It’s a parent’s worst nightmare: Taking your child to the doctor and receiving a life-changing diagnosis. It only adds to the heartbreak when they find out there may be no effective treatment at all, and that all they can do is hope for the best.
Few diagnoses strike fear in the heart of parents and doctors more than a cancer called diffuse intrinsic pontine glioma, or DIPG. Primarily found in children, DIPG is a highly aggressive brain tumor that is uniformly fatal, with less than 10 percent of children surviving longer than two years after diagnosis. The tumors grow fast and on extremely vital areas like the spine and brain stem, making them exceptionally hard to remove. Though young patients have been treated with radiation, chemotherapy, and surgeries, no one had ever been cured of the fatal cancer.
But for the first time ever, a 13-year-old boy from Belgium named Lucas Jemeljanova has beaten the odds.
Diagnosed with DIPG at age six, Lucas’ doctor Jacques Grill told Lucas’ parents, Cedric and Olesja, that he was unlikely to live very long. Instead of giving up hope, Cedric and Olesja flew Lucas to France to participate in a clinical trial called BIOMEDE, which tested new potential drugs against DIPG.
Lucas was randomly assigned a medication called everolimus in the clinical trial, a chemotherapy drug that works by blocking a protein called mTOR. mTOR helps cancer cells divide and grow new blood vessels, while everolimus decreases blood supply to the tumor cells and stops cancer cells from reproducing. Everolimus, a tablet that’s taken once per day, has been approved in the UK and the US to treat cancers in the breast, kidneys, stomach, pancreas, and others—but until the BIOMEDE clinical trial, it had never before been used to treat DIPG.
Though doctors weren’t sure how Lucas would react to the medication, it quickly became clear that the results were good.
“Over a series of MRI scans, I watched as the tumor completely disappeared,” Grill said in an interview. Even more remarkably, the tumor has not returned since. Lucas, who is now thirteen, is considered officially cured of DIPG.
Even after the tumor was gone, Grill, who is the head of the Brain Tumor Program in the Department of Child and Teenage Oncology at Gustave Roussy cancer research hospital in Paris, was reluctant to stop Lucas’ treatments. Until about a year and a half ago, Lucas was still taking everolimus once every day.
“I didn’t know when to stop, or how, because there was no other reference in the world,” Grill said.
While Lucas is the only one in the clinical trial whose tumor has completely disappeared, seven other children have been considered “long responders” to everolimus, meaning their tumors have not progressed for more than three years after starting treatment.
So why did everolimus work so well for Lucas? Doctors think that an extremely rare genetic mutation in Lucas’ tumor “made its cells far more sensitive to the drug,” Grill said, while the drug worked well in other children because of the “biological peculiarities” of their tumors.
While everolimus is by no means a cure, the trial has provided real hope for parents and families of children diagnosed with DIPG. Doctors must now work to better understand why Lucas’ tumor responded so well to the drug and how they can replicate those results in tumor “organoids”—artificially-grown cells that resemble an organ. After that, said Marie-Anne Debily, a researcher in the BIOMEDE trial, “the next step will be to find a drug that works as well on tumor cells.”
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A more recent clinical trial tested a new immunotherapy treatment on young DIPG patients and showed promising results. Many of the patients’ tumors shrank and several participants saw functional improvements in their symptoms and day-to-day lives. But only one of the 11 patients has seen success that rivals Lucas’ — a young man identified only as Drew, who has been thriving tumor-free for over four years after receiving treatment.
Once considered a definitive death sentence, there is real hope for the first time. But there’s much more research and work to be done. Until then, however, Lucas’ doctors are thrilled.
“Lucas’ case offers real hope,” said Debily.
This article originally appeared two years ago. It has been updated.
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