Lupron yeah or Lupron nay that is the question.

I've rationalized my need for Lupron Therapy. But there are holes in my analysis. The holes are there because of lack of data. So I'm in search of data. I want to hear the real data on the pros and cons of Lupron. All I have heard are generalities. Nothing specific, nothing quantatative, so let's get real.
I invite all to participate including moderators as this is relevant to all and also beneficial to all. My initial query. Who, what facility, has my Lupron answers? They have to be there else we would not be using that form of therapy. It had to have been researched into oblivion as are all procedures in the US of A thus justifying their cost structuring. When does Lupron cease to be effective? That is, what quantifiable condition of our tumors renders Lupron useful? If your doctor says you are cured of your cancer then why continue it's use? If it ain't broke why "fix" it??