Could a smartwatch and saliva sample replace blood tests for ovulation tracking?

NCT ID NCT07687823

Not yet recruiting Knowledge-focused Sponsor: University Hospital, Strasbourg, France Source: ClinicalTrials.gov ↗

First seen Jul 07, 2026 · Last updated Jul 08, 2026 · Updated 1 time

Summary

This study explores whether ovulation can be detected using non-invasive methods like saliva, hair samples, and smartwatch data instead of standard blood tests. Researchers will monitor 30 women with regular menstrual cycles over three cycles, collecting saliva and hair for progesterone measurement and using smartwatches to track activity, sleep, and other parameters. The goal is to develop simpler tools for studying female fertility in larger populations.

What this could mean

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

What this could lead to: If successful, this could lead to simpler, at-home ovulation tracking without blood tests, helping women better understand their fertility.
What could go wrong: This is a small, early feasibility study with only 30 women. The non-invasive markers may not prove reliable enough to replace blood tests.

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.

female infertility

As listed by the trial registrant

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

FEMALE FERTILITY MENSTRUAL CYCLE OVULATION

Contacts and locations

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Study contacts

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Phone: •••-•••-•••• Email: •••••@•••••

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