Cobimetinib‐induced “dropped head syndrome” and subsequent disease management in an Erdheim‐Chester patient

Our rechallenge of cobimetinib in an Erdheim-Chester Disease (ECD) patient for the rare adverse effect, "dropped head syndrome," with a previously unexplored cobimetinib regimen was successful. Similar to other experiences with targeted agents in ECD, dosing of cobimetinib may vary to mitigate toxicity without impairing...