New obesity drug may affect birth control pills – study investigates

NCT ID NCT07525791

Recruiting now Knowledge-focused Sponsor: Novo Nordisk A/S Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage study is testing whether a new weekly injection called NNC0662-0419 changes how the body processes birth control pills and a common painkiller. Researchers will measure drug levels in the blood of 45 women who cannot become pregnant and have overweight or obesity. The goal is to check for any interactions that could make birth control less effective.

What this could mean

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

Active substance: NNC0662-0419
What this could lead to: If successful, this study could show that NNC0662-0419 is safe to use with birth control pills, helping women with overweight or obesity avoid unintended pregnancies.
What could go wrong: This is a very early Phase 1 trial with only 45 participants. It focuses on drug interactions, not weight loss or disease treatment, so results may not lead to any new therapy.

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Conditions

The condition(s) this trial relates to.

Obesity obesity disorder Overweight

As listed by the trial registrant

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

OBESITY OVERWEIGHT

Contacts and locations

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Study contacts

Contact

Email: •••••@•••••

Locations

Altasciences Clinical Kansas, Inc.
RECRUITING

Overland Park, Kansas, 66212, United States

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