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Finger length may offer clues to breast cancer risk

NCT ID NCT07436169

Knowledge-focused Sponsor: Malatya Turgut Ozal University Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether the ratio of index to ring finger length (2D:4D) is different in women with breast cancer compared to healthy women. Researchers measured the fingers of 132 women (79 with breast cancer, 53 without) and checked if the ratio related to tumor markers in the blood. The goal was to see if this simple finger measurement could hint at hormonal exposure linked to cancer risk, but no treatment or diagnosis was tested.

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 a link is found, finger ratios might become a simple, non-invasive clue to hormonal exposure and breast cancer risk, but this is very early and not a diagnostic tool.
What could go wrong
This is a small, completed observational study, not a treatment trial. Any association found may not be strong enough to be useful, and finger ratios are not a reliable way to diagnose or predict cancer.

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

Study facts

What this study's own registry entry says, in plain language.

Participants

132 people

The number who actually took part.

Started

Apr 2024

Finished

Aug 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Women aged 18 years and older who attended the breast clinic during the study period, including patients with histopathologically confirmed breast cancer and age-matched healthy controls.

Ages

19 to 70 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Women aged 18 years and older with histopathologically confirmed primary breast cancer who were evaluated and/or treated at the breast clinic during the study period and who provided written informed consent were included in the study. Exclusion Criteria: * Individuals with hand deformities, a history of finger fractures, or finger deformities were excluded from the study during finger measurements

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Conditions

The condition(s) this trial relates to.

autosomal dominant medullary cystic kidney disease with or without hyperuricemia breast cancer breast neoplasm

As listed by the trial registrant

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

Anthropometric measurements Breast cancer Females

Contacts and locations

Locations

  • Malatya Turgut Ozal University

    Malatya, Central, 44100, Turkey (Türkiye)

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