For castration-naive metastatic prostate cancer patients who you plan to treat with LHRH agonist monotherapy, how long do you treat with an anti-androgen therapy prior to and after initiating the LHRH-agonist?

I only use bicalutamide prior to starting LHRH agonist in patients with high risk of spinal cord compression or urinary obstruction. I will start bicalutamide for 7 days then start LHRH agonist therapy. In all other patients, I start LHRH agonist without combination with anti-androgen therapy.