"The other thing about the toxicity profile overall is that it’s an extremely important thing to consider in patients with thyroid cancer, because many patients do have quite indolent disease. But the patients who were enrolled in the placebo arm had a progression-free survival of less than 4 months, and these are the people who go on to die from their disease when it’s that rapidly progressive. So we do need effective treatments that, unfortunately, do come with some toxicities," she said in an interview.
Although the toxicities of therapy were "considerable," most could be managed through either dose adjustment or additional medications, Dr. Schlumberger said.
The study was sponsored by Eisai. Dr. Schlumberger disclosed receiving honoraria and research funding and acting in an advisory role to the company. Dr. Masters and Dr. Wirth reported having no relevant relationships to disclose.