Listing and the use of commas

In the sentence, I want to separate "dementia and associated disease processes" from 'to describe the supportive medical management". Is the comma not necessary or does it help clarify the two statements?

Also is the rest of the sentence about medical management redundant or necessary to clarify the terminology?

See example:

The purpose of this course was to define dementia and associated disease processes, and to describe the supportive medical management utilizing up-to-date medication information including action, dosage, side effects, and rationale .