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Spinal cord injury infertility: could a common drug boost sperm movement?

NCT ID NCT05903859

Symptom relief Sponsor: University of Miami 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a medicine called probenecid to see if it can improve sperm movement in men with spinal cord injury. Many of these men have normal sperm counts, but their sperm don't swim well, causing infertility. The trial will enroll 90 men and measure changes in sperm quality over time.

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 3

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

Participants

About 90 people

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

Started

Jan 2024

Expected to finish

Dec 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

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. Subject has a traumatic spinal cord injury. 2. Subject is male and is 18 years or older. Exclusion Criteria: 1. Subject has been injured less than 1 year. 2. The subject is known to be azoospermic. 3. The subject has an indwelling urethral Foley catheter. 4. Subject is under the age of 18 years. 5. Subject has an unstable medical condition including, but not limited to, Crohn's disease, ulcerative colitis, colon cancer or has other conditions deemed to be exclusionary per the Investigator. 6. Subject is unable to consent or comprehend the procedures and their implications. 7. Subject has a permanent implanted electrical device, i.e., cardiac pacemaker, phrenic nerve stimulator, spinal cord stimulator, etc. 8. Any subject for whom the procedure or medication is otherwise contraindicated. 9. Subject has hypersensitivity to probenecid. 10. Subject has a history of uric acid kidney stones and/or peptic ulcer. 11. The subject has had a febrile Urinary Tract Infection (UTI) within the 2 months prior to enrollment. 12. The subject is taking methotrexate, aspirin, other salicylates, or anti-inflammatory medicines. 13. The subject has a history of Glucose-6-phosphate dehydrogenase (G6PD) deficiency.

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Conditions

The condition(s) this trial relates to.

male infertility spinal cord injury

As listed by the trial registrant

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

Infertility, male

How to take part

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

  1. The places running it

    1 site. 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

  • University of Miami

    RECRUITING

    Miami, Florida, 33136, United States

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