NorthWest Biotherapeutics Inc (NWBO)

[BioInfo]

"'slow period' that it includes seeing if tumors other than the tumor injected are affected, i.e., a systemic response"

I interpret it as follows:
"it includes seeing if tumors other than the tumor injected are affected", it means direct injected tomor already responded well, they want to see if other tumors also respond to it.

It could also mean that they selected patients that have multiple types of tumor? Possible!