@songinmyheart54: Have you gotten a response from Melissa at AIM at Melanoma? Just an FYI in my particular case as I had to suspend Keytruda for my metastatic melanoma - for which there is currently no evidence of disease - due to toxcity and in consideration of some other conditions I have - but both my oncologist and a seminar led by oncologists from Sloan Kettering I've attended have indicated that chemotherapeutic agents, such Dacarbazine or a group known as taxanes could be considered should my melanoma recur. It may be worth exploring as opposed to remaining on immunotherapy indefinitely, which is certainly your choice.