New device aims to block tubes without surgery

NCT ID NCT05977751

Recruiting now Disease control Sponsor: Femasys Inc. Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This trial tests FemBloc, a device placed into the fallopian tubes through the vagina to block them permanently, without surgery. About 573 women aged 21-50 who want permanent birth control will be followed for up to 5 years to see how well it prevents pregnancy. The main goal is to measure the pregnancy rate after one year.

What this could mean

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

Active substance: FemBloc device
What this could lead to: If successful, this could offer women a non-surgical, permanent birth control option that avoids incisions and recovery time.
What could go wrong: This is an early-stage, single-arm trial without a comparison group. The device may fail to block the tubes, leading to pregnancy, or cause side effects like pain or infection.

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.

CONTRACEPTION

Contacts and locations

Locations

Maimonides Medical Center
RECRUITING

Brooklyn, New York, 11219-2919, United States
Midtown OB GYN North
RECRUITING

Columbus, Georgia, 31909, United States
New Horizons Clinical Trials
RECRUITING

Chandler, Arizona, 85224, United States
Rosemark WomenCare Specialists
RECRUITING

Idaho Falls, Idaho, 83404, United States
Seven Hills Women's Health Centers
RECRUITING

Cincinnati, Ohio, 45242, United States
Stanford University
RECRUITING

Palo Alto, California, 94304, United States
University of California Davis
RECRUITING

Sacramento, California, 95817, United States
University of Utah
RECRUITING

Salt Lake City, Utah, 84108, United States

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