I read several posts on this forum regarding pseudo progression of Keytruda when treating the brain mets.
In case of my husband - we had 3 infusions since middle of February . MRI has been performed in March and another one yesterday. Both of them showed decease progression with multiple new lesions and size increase of some existing lesions
i have read that Keytruda effect can sometimes be delayed and enlargement of existing lesions due to swelling is also common.
But what about new lesions? Is it the decease progression and we just have to be patient and continue with Keytruda?
Or it's better to stop and switch to ipi/novo?
I know that it's case by case basis, but wanted to hear from other members of this forum.