Sounds like Lupron (a shot every three months) and one of the -lutamides (I take 4 Apalutamide pills every day). If my guess is correct, then the goal is to put the cancer to sleep for a while by blocking androgens like testosterone (its main trigger) at both ends:

Lupron is an ADT, which blocks your body from producing testosterone.

The -lutamides are ARSIs, which block cancer cells from receiving testosterone and other androgens (even, to a certain extent, once tumours become castrate-resistant and evolve to produce their own androgens).

It sounds like a good first strategy to my layperson's ears. If they reduce your PSA to undetectable in a few months (especially on the uPSA test), then you'll know that the cancer has gone dormant.