New blood test could unmask hidden bleeding disorders

NCT ID NCT01957345

Completed Diagnosis Sponsor: University Hospital, Toulouse Source: ClinicalTrials.gov ↗

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

Summary

This study tested a new lab method to diagnose platelet function disorders in 322 people with bleeding symptoms. The method uses flow cytometry to detect signaling defects in platelets, which are often missed by standard tests. The goal was to standardize the technique across multiple labs and establish reference values. If proven reliable, this approach could help identify the cause of bleeding in patients who currently have no clear diagnosis.

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 a simpler, more accurate blood test to diagnose hidden platelet disorders in people with unexplained bleeding.
What could go wrong: This is an early-stage method validation study, not a treatment trial. The test may not prove reliable enough for routine use, and results may vary between labs.

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.

blood platelet disease Glanzmann thrombasthenia inherited bleeding disorder, platelet-type qualitative platelet defect

As listed by the trial registrant

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

PLATELET DYSFUNCTION

Contacts and locations

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Locations

University Hospital Toulouse

Toulouse, 31000, France

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