Hello Deebee78

I've had a look through the forum and I can't find any members here who have mentioned going through immunotherapy for sarcomatoid RCC. 

If you know the name of the particular drug you're looknig for information about you may find this link helpful. 

You may have more luck connecting with others via a specific kidney cancer support group such as Kidney Cancer UK or Kidney Cancer Support Network. 

Alternatively you're welcome to call our team of nurses. They are available Monday to Friday 9am to 5pm on 0808 800 4040. 

I hope you find the information you're looking for. 

Best wishes, 
Jenn
Cancer Chat moderator