Urethral obstruction
MONDO:0001556Blockage of the normal flow of urine in the urethra.
Also known as: urethral obstruction, urethral obstruction (disease)
26 clinical trials for this condition and its sub-types, 3 tagged with Urethral obstruction itself.
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Sub-types of Urethral obstruction
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Urethral stricture 23 trials
1 sub-type
- Infective urethral stricture 0 trials
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Urethral obstruction sequence 0 trials
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Which laser frequency works best for prostate surgery?
Disease control CompletedThis trial compares three different laser frequency settings (40, 50, and 60 Hz) used during a procedure called HoLEP, which treats enlarged prostates causing bothersome urinary symptoms. Men aged 18-89 undergoing HoLEP will be randomly assigned to one of the laser settings on th…
Sponsor: Northwestern University • Aim: Disease control
Last updated Aug 22, 2026 00:00 UTC
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Lab-Grown collagen patch may replace mouth tissue for urethra repair
Disease control CompletedThis pilot study tested a bioengineered collagen scaffold as a substitute for the traditional mouth-tissue graft used in urethral stricture repair. Five adult men with a short urethral stricture (less than 3 cm) received the implant. The main goal was to see if the urethra stayed…
Sponsor: Regenosca SA • Aim: Disease control
Last updated Jun 27, 2026 12:24 UTC
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New balloon coated with drug may help men with narrowed urethra
Disease control CompletedThis study tested a special balloon coated with the drug paclitaxel to treat urethral stricture, a narrowing of the tube that carries urine out of the body. Sixteen men with recurrent strictures received the balloon treatment. The goal was to see if the device is safe and can hel…
Sponsor: Urotronic Inc. • Aim: Disease control
Last updated Jun 27, 2026 08:00 UTC
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Placenta patch put to the test for faster mouth healing
Symptom relief CompletedSurgeons often take a small piece of tissue from inside the mouth to rebuild the urethra in men with a narrowed urine tube. This leaves a raw patch in the mouth that can be painful and slow to heal. Researchers are testing whether covering that mouth wound with a biological dress…
Phase 4 • Sponsor: Zagazig University • Aim: Symptom relief
Last updated Sep 19, 2026 00:00 UTC
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New study aims to ease mouth pain after urethral surgery
Symptom relief CompletedThis study looks at three different numbing methods to reduce pain in the mouth after a type of urethral surgery called buccal graft urethroplasty. Sixty men will be randomly assigned to one of the methods, and their pain levels and need for painkillers will be tracked. The goal …
Phase 3 • Sponsor: University of California, San Francisco • Aim: Symptom relief
Last updated Sep 12, 2026 00:00 UTC
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Laser zaps away urinary blockages better than Old-School knife?
Symptom relief CompletedThis study compared two ways to treat a narrow urethra (the tube that carries urine out of the body) in 60 men aged 18 to 70. One method uses a laser, the other a cold knife. The goal was to see which works better at improving urine flow after 30 days. The findings could help sta…
Sponsor: Shahida Islam Medical Complex • Aim: Symptom relief
Last updated Jun 27, 2026 12:23 UTC
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Can doctors predict which stricture repairs will hold?
Knowledge-focused CompletedThis study looks back at 250 patients who had surgery to widen a narrowed urethra using a graft from the inside of the cheek. The goal is to identify factors that predict whether the narrowing will return. Researchers will review medical records from the past 10 years, focusing o…
Sponsor: Al-Azhar University • Aim: Knowledge-focused
Last updated Aug 16, 2026 00:00 UTC