NCT06482645

Evaluation of Perilesional Biopsy in Diagnosis of Prostate Cancer

Efficacy and Safety Evaluation of Perilesional/Regional Systematic Biopsy in Diagnosis of Prostate Cancer: a Multicenter Randomized Controlled Trial

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 300 (estimated)
• Sponsor: Peking University First Hospital · Academic / Other
• Sex: Male
• Age: 45 Years – 85 Years
• Healthy volunteers: Not accepted

Summary

The goal of this multicenter randomized controlled trial (RCT) is to evaluate the efficacy and safety of different prostate biopsy schemes, including perilesional/regional systematic biopsy (PB/RSB) and combination of systematic biopsy and targeted biopsy (TB+SB). The main questions it aims to answer are: Does PB/RSB promote the accurate diagnosis of clinically significant prostate cancer? What's the value of PB/RSB in improving the safety of prostate biopsy? Researchers will compare the cancer detection rates of PB/RSB and combination of TB+SB to explore the efficacy of different prostate biopsy schemes. They will evaluate the safety profile of different prostate biopsy schemes through the complication rates and postoperative quality of life. Participants will: Receive PB/RSB or TB+SB.

Detailed description

Currently, combination of systematic biopsy and targeted biopsy (TB+SB) has been recommended for the diagnosis of patients with suspicious lesion found on multiparametric magnetic resonance imaging (mpMRI). Although the combined biopsy approach could effectively detect clinically significant prostate cancer (csPCa), the increased number of biopsy cores would increase the risk of complications and decrease the postoperative quality of life. In recent years, urological and radiologic thinking has changed after realizing that systemic biopsies may be omitted when the chance of missing a clinically significant lesion is low, or when a systemic biopsy has already been done beforehand. More and more radiologists and urologists focused on the issue of optimization of prostate biopsy schemes. Previous studies found that the majority of csPCa were found within a band of 10-mm radius outside MRI lesions (the penumbra). Based on the penumbra theory, the perilesional/regional systematic biopsy (PB/RSB) has gradually received urologists' attention. Some studies demonstrated that the prostate cancer (PCa) detection rate was not inferior to the combined biopsy with the benefits of using fewer biopsy cores. However, the safety profile warrants further evaluation, and there is still a lack of high-quality, prospective evidence for the PB/RSB schemes. Thus, this multicenter randomized controlled trial (RCT) aims to evaluate the efficacy and safety of PB/RSB schemes and the routine TB+SB schemes, provide high-quality evidence for the optimization of prostate biopsy schemes. The main questions it aims to answer are: Does PB/RSB promote the accurate diagnosis of clinically significant prostate cancer? What is the value of PB/RSB in improving the safety of prostate biopsy? This prospective, multi-institution RCT compared the csPCa detection rates of PB/RSB and combination of TB+SB. Participants were prospectively enrolled at Peking University First Hospital (Beijing, China), Beijing Hospital (Beijing, China), and Shanghai East Hospital (Shanghai, China) from July 2024 to June 2025. Participants were randomly allocated to PB/RSB group and TB+SB group. Researchers will compare the cancer detection rates of PB/RSB and combination of TB+SB to explore the efficacy of different prostate biopsy schemes. They will evaluate the safety profile of different prostate biopsy schemes through the complication rates and postoperative quality of life. Participants will: Receive PB/RSB or TB+SB.

Conditions

• Prostate Cancer

Interventions

Type	Name	Description
PROCEDURE	Perilesional/regional systematic biopsy	The biopsy procedure was conducted by a highly skilled and experienced urologist who specializes in performing prostate biopsies. Prophylactic antibiotics were routinely used both before and one day prior to scheduled surgery. Each patient was placed in the left lateral position or lithotomy position. For each predefined mpMRI suspicious lesion, urologists obtained nine cores at 5-mm intervals within and around the region of interest (penumbra). The location of these nine cores depended on the shape and location of the suspicious lesion.
PROCEDURE	Combination of systematic biopsy and targeted biopsy	The biopsy procedure was conducted by a highly skilled and experienced urologist who specializes in performing prostate biopsies. Prophylactic antibiotics were routinely used both before and one day prior to scheduled surgery. Each patient was placed in the left lateral position or lithotomy position. The ultrasound equipment used included a color Doppler ultrasound diagnostic instrument (Hitachi HiVision, Philips Epiq 7), transrectal probes, and corresponding puncture needle guns. Color Doppler examination was performed from the base to the apex. Three to five targeted biopsies from the lesion were performed within and around the predefined mpMRI suspicious lesion, followed by fore-zone 12-core biopsy.

Timeline

• Start date: 2024-07-01
• Primary completion: 2025-06-30
• Completion: 2026-06-30
• First posted: 2024-07-01
• Last updated: 2024-07-23

Locations

1 site across 1 country: China