Do you have any evidence that the CDR was slow with it? It comes to the CDR after Health Canada approval; that's usually for a drug that is pretty new and where the manufacturer has applied. In other words, I don't know whether the length of time that Tarceva took to go through the process was normal for a new drug, or whether there was some undue delay and it was just your mother's bad luck to need it exactly when she did, before it was really approved.
On May 14th, 2007. See this statement in context.