Clinical Research Directory

Inclusion Criteria: 1. Adults ≥19 years of age 2. Patients with a diagnosis of prostate adenocarcinoma for which stereotactic body radiotherapy (SBRT) to the prostate ± proximal seminal vesicles is being offered 3. Prostate gland volume \<100 cc prior to initiation of androgen deprivation therapy (ADT), as reported at time of biopsy or by imaging (e.g., ultrasound, MRI, or CT) 4. PI-RADS 4 or 5 lesion seen on pre-treatment MRI 5. IPSS/AUA symptom score less than 16 Exclusion Criteria: 1. Prior treatment for prostate cancer 2. Prior solid cancer diagnosis within the last 5 years 3. Any history of anal or rectal cancer 4. Any history of invasive carcinoma of the bladder 5. History of prior circumferential resection of the rectum (such as LAR or APR)