Lower Urinary Tract Symptoms (LUTS) attributable to BPH for ≥6 months

Written informed consent prior to enrollment in the study

IPSS ≥12

Prostate volume of 30 - 100 mL as determined by TRUS

Maximum urine flow (Qmax) of 4 - 15 mL/sec

Refractory, intolerant or refused the use of alpha-blockers and/or 5 alpha-reductase inhibitors

Unwilling or unable to undergo conventional surgical or available minimally invasive treatments

Blood PSA values \<10 ng/mL

Study of PRX302 for Lower Urinary Tract Symptoms Due to Benign Prostatic Hyperplasia (BPH)