Prophylactic use of tamsulosin in the prevention of post-operative urinary retention in men after rectum resection: a double-blind placebo-controlled clinical trial

NCT ID NCT05941806

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By invitation only
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Cancelled before anyone took part.

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First seen Sep 10, 2026 · Last updated Sep 10, 2026

Summary

The study will be a phase III double-blind randomized clinical trial. Participants will be recruited from the Department of General Surgery of the CHU de Québec - Saint-François-d'Assise and Hôtel-Dieu de Québec. The primary outcomes are the incidence of postoperative urinary retention in men undergoing rectal resection and the efficacy of prophylactic tamsulosin to prevent this type of complication.The secondary outcomes are the length of stay between experimental and placebo groups, the number of urinary catheterizations, the number of urine catheter reinsertions and total duration of urinary catheter being in-situ.

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Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 220 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2023

Expected to finish

Jul 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Male participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Male patients * 18 years and older * Scheduled for rectal resection during the study period. Exclusion Criteria: * Patients undergoing revisional surgery * Patients taking alpha-blocker medication, * Patients who have an indwelling urinary catheter, * Patients who have undergone urinary tract surgery, * Patients who will have an intraoperative trauma of the urinary tract, * Patients who will keep their urinary catheter for more than 24 hours after surgery, * Patients who have an intolerance to alpha-blocking drugs or who take one of the following drugs (potential interaction): anti-retroviral, antifungal, clarithromycin, erythromycin, paroxetine, terbinafine, cimetidine, coumadin or phosphodiesterase inhibitors. * Patients who will have an epidural anesthesia

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Conditions

The condition(s) this trial relates to.

Urinary Retention

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

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  3. A doctor treating you

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Contacts and locations

Locations

  • Hôpital Saint-François d'Assise

    RECRUITING

    Québec, Quebec, G1L 3L5, Canada

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