A monthly ring could put birth control on autopilot — a trial puts it to the test

NCT ID NCT07734155

First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time

Summary

This phase 3 trial is testing whether a levonorgestrel vaginal ring, worn continuously for 28 days, can effectively prevent pregnancy in females aged 13 to 45 who are sexually active and able to conceive. Researchers will track pregnancies and side effects over about 13 months of use. The goal is to see if this monthly ring offers a safe and reliable contraceptive option.

What this could mean

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

Active substance
a levonorgestrel vaginal ring worn continuously for 28 days per cycle
What this could lead to
If successful, this could offer a new, convenient long-acting contraceptive option that women use for a month at a time.
What could go wrong
This is a single-arm, open-label trial without a comparison group, so results may be less definitive. Side effects like irregular bleeding or hormonal changes are possible.

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Conditions

The condition(s) this trial relates to.

Contraception Behavior

As listed by the trial registrant

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

More trials for these conditions

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