Do you use pass for talking about the courses that you have successfully finished? For instance,
...while at the same time passing intensive courses ...
I think you can.
A native speaker's sentence confirms that.
I kept passing courses and winning scholarships, but I was close to 40 before I even approached the median salary, and things have got much worse for researchers since the 1970s.
Worth to note that in UK English, passing out does mean completing whatsoever exam/course. However, the context is military
The new officers passed out from Britannia Royal Naval College on Thursday 1 August .
In Indian English, it's valid for almost all the courses. However, it's more used for the batch. We also use pass-out as an adjective
He's a 2004 pass out (informal)