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Smaller cut, same hope: study seeks to predict sperm retrieval success

NCT ID NCT07286279

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looked at 248 men with very low or no sperm in their semen to see if a less-invasive, mini-incision surgery could successfully retrieve sperm. Researchers checked whether factors like hormone levels or medical history could predict who would benefit from this smaller procedure. The goal is to help men avoid more extensive surgery when a simpler approach might work.

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.

Participants

248 people

The number who actually took part.

Started

Dec 2025

Finished

Jan 2026

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.

Who is studied

Men who underwent micro-TESE procedure from March 2015 to June 2025

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: * Patients with cryptozoospermia or non obstructive azoospermia that underwent a micro-TESE Exclusion Criteria: * Patients with a potentially reversible cause of cryptozoospermia (i.e., presence of a varicocele, febrile illness, or recent toxin exposure) * Patients with suspected partial genital tract obstruction (i.e post-vaso-vasostomy, post-vasoepididymostomy, and low volume cryptozoospermia with ejaculatory duct obstruction) * Patients who have previously undergone a micro-TESE, TESA or TESE procedure

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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

  • Clinique ovo

    Montreal, Quebec, H4P 2S4, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.