Pain Comparison: Transrectal vs. Transperineal Prostate Biopsy
TRAP-PAIN
Comparison of Anticipated and Experienced Pain Levels in Transrectal Versus Transperineal Prostate Biopsy
1 other identifier
observational
200
1 country
1
Brief Summary
Prostate biopsy remains the gold standard for the diagnosis of prostate cancer and is most commonly performed using either the transrectal or transperineal approach. Although both techniques offer acceptable diagnostic accuracy, the pain experienced during and after the procedure is an important factor influencing the choice of biopsy approach and overall patient comfort. Pain perception in prostate biopsy is multifactorial, depending on the biopsy route, the number of needle insertions, the local anesthesia protocol, and the innervation of the relevant anatomical structures. The aim of this prospective study is to compare anticipated (pre-procedural expected) and experienced (post-procedural actual) pain levels in patients undergoing transrectal versus transperineal prostate biopsy, using the Visual Analog Scale (VAS). Findings are expected to contribute to clinical decision-making regarding biopsy approach selection with a focus on patient comfort.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started May 2026
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 5, 2026
CompletedStudy Start
First participant enrolled
May 10, 2026
CompletedFirst Posted
Study publicly available on registry
May 11, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 10, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 10, 2026
May 11, 2026
May 1, 2026
2 months
May 5, 2026
May 5, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Comparison of Experienced Pain Scores Between Transrectal and Transperineal Prostate Biopsy Groups
Experienced pain (perceived immediately after the procedure) will be assessed using the Visual Analog Scale (VAS), scored from 0 (no pain) to 10 (worst pain imaginable). Post-procedural VAS scores will be compared between the transrectal and transperineal prostate biopsy groups.
Within 15 minutes after completion of the biopsy procedure
Secondary Outcomes (3)
Pre-Procedural Anticipated Pain Level
Within 30 minutes before the biopsy procedure
Post-Procedural Experienced Pain Level
From immediately before to immediately after prostate biopsy
Effect of Age on Pain Perception
Immediately after prostate biopsy
Study Arms (2)
Transrectal Prostate Biopsy Group
Patients in this group will undergo prostate biopsy via the transrectal approach. Prior to the procedure, periprostatic nerve block will be performed as the standard local anesthesia protocol. The biopsy needle will be introduced through the rectal wall under transrectal ultrasound (TRUS) guidance to obtain prostate tissue samples. Anticipated pain will be assessed using the Visual Analog Scale (VAS) before the procedure, after the patient has been informed about both biopsy techniques. Experienced pain will be assessed with the VAS as a single measurement immediately after completion of the biopsy.
Transperineal Prostate Biopsy Group
Patients in this group will undergo prostate biopsy via the transperineal approach. Prior to the procedure, periprostatic nerve block will be performed as the standard local anesthesia protocol. The biopsy needle will be introduced through the perineal skin under transrectal ultrasound (TRUS) guidance to obtain prostate tissue samples. Anticipated pain will be assessed using the Visual Analog Scale (VAS) before the procedure, after the patient has been informed about both biopsy techniques. Experienced pain will be assessed with the VAS as a single measurement immediately after completion of the biopsy.
Eligibility Criteria
The study population consists of male patients with a clinical indication for prostate biopsy, including elevated serum prostate-specific antigen (PSA) levels, abnormal findings on digital rectal examination (DRE), and/or suspicious lesions detected on multiparametric prostate magnetic resonance imaging (mpMRI). Patients will be recruited consecutively from the urology outpatient clinic and will undergo prostate biopsy via either the transrectal or transperineal approach. Only patients undergoing prostate biopsy for the first time, who are able to understand and complete the Visual Analog Scale (VAS) for pain assessment, and who provide written informed consent will be included.
You may qualify if:
- Male patients aged 18 years and older Patients with clinical indication for prostate biopsy (elevated serum prostate-specific antigen \[PSA\] level, abnormal digital rectal examination \[DRE\], and/or suspicious lesion on multiparametric prostate magnetic resonance imaging \[mpMRI\])
- Patients undergoing prostate biopsy for the first time
- Patients able to understand and complete the Visual Analog Scale (VAS) for pain assessment
- Patients who have provided written informed consent to participate in the study
You may not qualify if:
- Patients with a history of previous prostate biopsy
- Patients with a previously confirmed diagnosis of prostate cancer
- Patients with active urinary tract infection or prostatitis at the time of biopsy
- Patients with anorectal pathology that may interfere with the transrectal approach (e.g., anal stenosis, active hemorrhoidal disease, anal fissure, prior rectal surgery)
- Patients with perineal pathology that may interfere with the transperineal approach (e.g., perineal infection, scarring, or prior surgery)
- Patients with bleeding diathesis or those receiving anticoagulant therapy that cannot be safely discontinued before the procedure
- Patients with known allergy or hypersensitivity to local anesthetic agents
- Patients with chronic pain syndromes or those receiving regular analgesic or opioid treatment that may affect pain perception
- Patients with cognitive impairment, psychiatric disorders, or language barriers preventing reliable use of the Visual Analog Scale (VAS)
- Patients who refuse to participate or do not provide informed consent
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Kayseri Education and Research Hospital
Kayseri, Kocasinan, 38080, Turkey (Türkiye)
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Mert Ali Karadağ, Professor
Kayseri Education and Research Hospital
- PRINCIPAL INVESTIGATOR
Abdullah Gölbaşı, Assistant Professor
Kayseri Education and Research Hospital
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 1 Day
- Sponsor Type
- OTHER GOV
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assitant Professor
Study Record Dates
First Submitted
May 5, 2026
First Posted
May 11, 2026
Study Start
May 10, 2026
Primary Completion (Estimated)
July 10, 2026
Study Completion (Estimated)
August 10, 2026
Last Updated
May 11, 2026
Record last verified: 2026-05
Data Sharing
- IPD Sharing
- Will not share