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New balloon treatment for urethral stricture under scrutiny for sperm safety

NCT ID NCT05383274

Disease control Sponsor: Urotronic Inc. Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a special balloon coated with the drug paclitaxel, called Optilume, used to open narrowed areas in the urethra. Researchers want to see if it affects semen quality in men aged 22 to 65. The trial will measure changes in sperm concentration over 3 to 6 months in 34 participants.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
paclitaxel-coated balloon
What this could lead to
If successful, this could show that Optilume is safe for semen quality, offering a treatment option for urethral stricture without harming fertility.
What could go wrong
This is a small, single-arm study with only 34 men, so results may not apply widely. The drug paclitaxel could affect sperm, and long-term effects are unknown.

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 34 people

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

Started

Feb 2022

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Ages

22 to 65 years

Sex

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.

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: 1. Male subjects between 22 and 65 years of age 2. Subject diagnosed with a stricture in the anterior urethra that is able to be treated with the Optilume Urethral DCB in accordance with the approved Instructions for Use 3. Subject is willing to provide written informed consent and comply with study required follow-up assessments 4. Subject able to provide viable semen samples and baseline semen quality characteristics are above reference values based on below criteria (average of 2 samples): 1. total sperm ≥39 million 2. sperm concentration ≥15 million/mL 3. total motility ≥40% 4. progressive motility ≥32% 5. morphology ≥4% Exclusion Criteria: 1. Subjects with a known hypersensitivity to paclitaxel or structurally related compounds 2. Subjects with a history of vasectomy or other condition that may inhibit semen/sperm production or ejaculatory function 3. Subjects currently taking 5-alpha reductase inhibitors, alpha-blockers, selective serotonin reuptake inhibitors, or hormone replacement therapy without appropriate washout 4. Subject is unwilling to abstain or utilize a condom for 30 days after the procedure 5. Subject is unwilling to utilize highly effective contraception for 6 months after the procedure if partner is of childbearing potential 6. History of cancer in any body system that is not considered in complete remission

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Conditions

The condition(s) this trial relates to.

urethral stricture

As listed by the trial registrant

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

Urethral stricture

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    6 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Arkansas Urology

    RECRUITING

    Little Rock, Arkansas, 72211, United States

  • Chesapeake

    COMPLETED

    Hanover, Maryland, 21076, United States

  • Florida Urology

    RECRUITING

    Tampa, Florida, 33615, United States

  • Freedman Urology

    RECRUITING

    Las Vegas, Nevada, 89144, United States

  • New Jersey Urolgy

    COMPLETED

    Millburn, New Jersey, 07041, United States

  • Orlando Health

    RECRUITING

    Orlando, Florida, 32806, United States

  • Regional Urology

    COMPLETED

    Shreveport, Louisiana, 71106, United States

  • Urology Clinics of North Texas

    RECRUITING

    Dallas, Texas, 75231, United States

  • Western New York

    RECRUITING

    Cheektowaga, New York, 14225, United States

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