The Effect of Detrusor Underactivity in Determining Outcomes After Transurethral Resection of the Prostate for Treatment of Benign Prostatic Hyperplasia

May 18, 2026 updated by: samir sherif, Ain Shams University

The aim of this clinical trial is to evaluate the effect of detrusor underactivity on the functional and symptomatic outcomes following transurethral resection of the prostate (TURP) in benign prostatic hyperplasia patients presenting with chronic urinary retention.

The main questions it aims to answer are:

Will they restore spontaneous voiding?

They will be divided into 2 comparative groups (each group 45 patients) based on detrusor contractility.

  • Group (A) consists of patients with normal detrusor (bladder contractility index more than 100).
  • Group (B) consists of patients with underactive detrusor (bladder contractility index less than 100).

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

90

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age: more than 50-year-old
  • Chronic urinary retention secondary to BPH
  • Prostate size Above 30 and less than 100gm

Exclusion Criteria:

  • Prostate size over 100 gm and less than 30 gm
  • Prostatic carcinoma
  • Urinary bladder carcinoma
  • Acute urinary retention
  • Urethral stricture.
  • Previous bladder, urethral or prostate surgery.
  • Acute urinary tract infection.
  • Neurogenic bladder

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: consists of patients with underactive detrusor (bladder contractility index less than 100).
• Group (B) - Underactive Detrusor
Procedure: transurethral resection of Prostate
Standard TURP
Active Comparator: consists of patients with normal detrusor (bladder contractility index more than 100).
• Group (A) - Normal detrusor
Procedure: transurethral resection of Prostate
Standard TURP

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Restore spontaneous voiding
Time Frame: 3 months
All the included patients in this study are urethral catheter-dependant pre-operatively and have very bad voiding parameters. we will assess how they will benefit after TURP by regaining spontaneous voiding without the need for urethral catheters any more.
3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Flow rate improvement
Time Frame: 3 months
uroflowmetry will be done to all patients 3 months post operative and results will be compared
3 months
Post voiding residual urine volume decrease
Time Frame: 3 months
Post voiding residual urine volume will be calculated using ultrasound and results will be compared
3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Ain Shams University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

May 1, 2026

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Study Registration Dates

First Submitted

May 5, 2026

First Submitted That Met QC Criteria

May 17, 2026

First Posted (Actual)

May 19, 2026

Study Record Updates

Last Update Posted (Actual)

May 20, 2026

Last Update Submitted That Met QC Criteria

May 18, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Detrusor Underactivity & TURP

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Study Data/Documents

  1. Clinical Study Report
    Information identifier: 33645847
  2. Clinical Study Report
    Information identifier: 24184024

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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