PET scans may predict sperm retrieval success in infertile men
NCT ID NCT02043444
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 160 men with azoospermia (no sperm in semen) to see if a special PET scan (FDG PET-CT) could tell which men would have sperm found during testicular extraction. The scan measures how active the testicles are. The goal was to compare scan results between men who had sperm retrieved and those who did not. This could help avoid unnecessary surgery in the future.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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160 people
The number who actually took part.
- Started
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Jan 2014
- Finished
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Dec 2019
- Lead sponsor
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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
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18 to 50 years
- Sex
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Male participants only
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: absence of sperm cells on 2 spermograms in 3 months interval testicular size has to be determined in order to categorized in a group to accept surgery- Exclusion Criteria: allergy to fluoro deoxyglucose clinical varicocele
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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
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Centre européen Georges Pompidou
Paris, 75015, France
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UHBordeaux
Bordeaux, 33076, France
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UHToulouse
Toulouse, 31059, France
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University Hospital
Lille, 59037, France
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University Hospital
Rouen, 76031, France
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