Two prostate pills instead of one: can doubling up on alpha blockers clear urine retention?
NCT ID NCT07815379
First seen Sep 11, 2026 · Last updated Sep 11, 2026
Summary
Researchers compare two drug strategies for men with urinary symptoms caused by an enlarged prostate, also called benign prostatic obstruction. One group receives tamsulosin alone, a standard alpha blocker. The other receives tamsulosin plus silodosin, a second alpha blocker. The trial measures changes in symptom scores at one and three months, including in men who needed a catheter because they could not urinate.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- tamsulosin alone or tamsulosin plus silodosin, two alpha blocker drugs
- What this could lead to
- If the combination works better, doctors could offer a stronger pill-based option to men whose urinary symptoms and urine retention have not improved on a single alpha blocker.
- What could go wrong
- This is a modest Phase 4 study of 140 men, so results may not apply to everyone with BPH. Taking two alpha blockers may also increase side effects such as dizziness or low blood pressure.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
-
Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
-
About 140 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Oct 2025
- Expected to finish
-
Nov 2026
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
-
40 years and older
- Sex
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Male participants only
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: Age ≥40 years. Catheterized patients due to acute urine retention secondary to BPO. Patients with moderate and severe LUTS secondary to BPH as proven by IPSS (International Prostate Symptoms score) ≥8 and Qmax \<15 ml/sec with total void urine volume \>125 cc. Exclusion Criteria: Patients with neurological problems as: uncontrolled DM, parkinsonism and cerebral stroke. Patients with history of previous prostate surgery. Patients with complicated BPH necessitating intervention as: recurrent/persistent UTI, recurrent hematuria, bladder stones and indwelling urethral catheter due to chromic urine retention (CUR). Patients with suspected malignancy by abnormal Digital Rectal Examination (DRE) and or high PSA.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Urology and Nephrology Center, Mnasoura University
Al Mansurah, Dakahlia Governorate, 35561, Egypt
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Other studies related to the condition(s) this trial covers.
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