08/08/2025
The FDA recently approved the first drug designated specifically to treat DIPG and Diffuse Midline Glioma (DMG). This is the first time a DIPG treatment has made it out of clinical trials to market. For decades the only standard of care for DIPG has been radiation, both on initial diagnosis and regrowth/reoccurrence. This is the first real progress in the fight to finding a cure.
The clinical trials started for this drug (ONC201, now called Modeyso) started about the same time Éowyn's fight ended. I remember reading the very early, very promising results, and how quickly more trials and approvals for compassionate use spread, both in the US and internationally. I wish for our little girl's sake she could have had the opportunity to try this. Maybe it would have given her the time she needed to start kindergarten, let her ride the bus with her sister to school. But I am thrilled for all the kids and families that have benefitted from this already, and will benefit in the future. If even one child with DIPG gets to live a normal, healthy life because of this drug, it will be so worth it.
Still miss you everyday, Sunshine. Love you bunches.
In a historic milestone, the FDA has granted approval to ONC201 (now named Modeyso™) for the treatment of recurrent H3 K27M-mutant diffuse midline glioma (DMG) — a category that includes diffuse intrinsic pontine glioma (DIPG). This marks the first-ever approved therapy for this devastating disease, offering real hope to families who have been told for generations, "There's nothing we can do."
For decades, a diagnosis of DIPG meant only one thing: heartbreak. Found in the brainstem and most often affecting children between ages 4 and 11, DIPG robs children of their ability to walk, talk, eat, and breathe while leaving their minds fully intact. It has been an inoperable, mostly fatal brain tumor with no FDA-approved treatments. Even today, the median survival remains less than one year, and the five-year survival rate is less than 1%.
Now, thanks in large part to the early and ongoing support of the ChadTough Defeat DIPG Foundation and its partners, patients will now have access to an FDA-approved drug for recurrent H3 K27M-mutant DMG/DIPG. To date, the foundation has invested nearly $6 million in ONC201-related efforts.
Learn more about our involvement here: https://chadtough.org/research/onc201-receives-fda-approval-a-historic-milestone-for-dipg/