The Other Shoe
From the day I started chemo for my stage 4 lung cancer, I have had nothing but great results. The chemo started working immediately and my breathing improved noticeably after the very first treatment. Each scan showed shrinking (or at least stability) of my tumors and a PET scan even revealed that my targeted medicine Xalkori (crizotinib) had led to a complete metabolic response to treatment. But everyone living with metastatic cancer knows that this is incurable. We all know that one day the treatment will stop working, one day the cancer will get smarter and find a way around the medicine. I am on a fancy targeted therapy that has a great track record of controlling cancer in ROS1 -positive folks like me . However, it is well known that Xalkori has one weakness, its Achilles' heel: It does not cross the blood-brain barrier. Any cancer cell that manages to slip into the brain can grow freely, unhindered by the medicine. I bet you can guess where this is going. My regularly schedu...