Did storing testicular tissue as a child protect fertility? new study aims to find out
NCT ID NCT04202094
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study follows 50 young men who had cancer or blood disorders as children and received treatments that can harm fertility. Some stored testicular tissue before treatment; others did not. Researchers will check their fertility through exams, ultrasounds, blood tests, and semen samples to see how the treatments and the tissue storage affected their ability to have children.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could help doctors understand which childhood cancer treatments most affect future fertility and whether storing testicular tissue is worthwhile.
What could go wrong
This is an observational study, not a treatment trial. It only measures fertility outcomes and cannot prove that tissue storage preserves fertility. Results may take years and may not apply to all patients.
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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Universitair Ziekenhuis Brussel
Brussels, 1090, Belgium