Kanjinti (biosimilar Herceptin drug)

Hi All,


My mother has just been informed that all patients currently on Herceptin will be switched to this new biosimilar drug, Kanjinti.  It was recently FDA approved for HER2 positive patients on Herecptin.  Kaiser has adopted it and will switch all patients (including breast cancer) to this new drug.  I'm unfamiliar with "biosimilar" drugs but my superficial research says it is nearly identical in efficacy and side effects, and does in fact contain the same ingredient - trastuzumab.  Does anyone have knowledge or experience with this drug?


Keeping you all in my thoughts as we forge on.  New drugs and advances all the time. 


Thanks everyone,