Is any research being conducted on the neurotransmitter effects of Finasteride?

I posted recently about how nocturnal erections for me are still farily common and that their qualify is of a pre-PFS level. I know that androgens play a role in this, so I believe the problem lies elsewhere. Due to the fact my libido is zapped and that I have chronic anhedonia, I have considered dopaminergic paths.

Is any research in the process of exploring these pathways?

To my knowledge, no.