Could ozempic help men become fathers? new trial investigates

NCT ID NCT07179120

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study tests whether two popular weight-loss drugs, semaglutide and tirzepatide, can improve sperm quality and help obese men have children naturally. About 180 men will receive either lifestyle advice, semaglutide, or tirzepatide for 32 weeks. Researchers will measure changes in sperm count, movement, and pregnancy rates in their partners.

What this could mean

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

Active substance
Semaglutide (Rybelsus) and Tirzepatide (Mounjaro) – weekly injections
What this could lead to
If successful, these drugs could offer a new way to improve sperm quality and natural pregnancy rates in obese men struggling with infertility.
What could go wrong
This is an early phase 2 trial with only 180 men, so results may not apply to everyone. Side effects like nausea and rare risks (pancreatitis) are possible.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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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.