New birth control shot could last months

NCT ID NCT07222228

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a new contraceptive injection called levonorgestrel butanoate, given under the skin. It aims to prevent pregnancy with just two shots, spaced about 4 months apart. The trial involves 165 healthy women aged 18-35 and will track effectiveness and safety over 8 menstrual cycles.

What this could mean

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

Active substance
Levonorgestrel butanoate injection
What this could lead to
If successful, this could provide a new, longer-lasting birth control option for women, requiring only two injections over 8 months.
What could go wrong
This is an early phase 2b trial with only 165 participants, so results may not apply to everyone. Side effects or lower-than-expected effectiveness could limit its use.

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

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As listed by the trial registrant

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

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