New Finger-Prick test could speed up blood clot diagnosis

NCT ID NCT04737954

Completed Diagnosis Sponsor: LumiraDx UK Limited Source: ClinicalTrials.gov ↗

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

Summary

This study tested a new rapid D-dimer blood test (LumiraDx) in 679 people with symptoms of deep vein thrombosis or pulmonary embolism. The test uses a small blood sample from a finger prick or vein to quickly measure D-dimer levels, which can help rule out dangerous blood clots. Researchers compared the new test's accuracy to standard lab methods to see if it could be a reliable tool for faster diagnosis.

What this could mean

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

Active substance: LumiraDx point-of-care D-dimer assay
What this could lead to: If accurate, this could provide a faster, easier way to rule out dangerous blood clots in the legs or lungs, potentially reducing the need for hospital visits.
What could go wrong: This is a diagnostic accuracy study, not a treatment trial. The test may not be as reliable as standard lab methods, and results depend on proper use and patient selection.

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.

pulmonary embolism venous thromboembolism Venous Thrombosis

As listed by the trial registrant

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

DEEP VEIN THROMBOSIS PULMONARY EMBOLISM VENOUS THROMBOEMBOLISM

Contacts and locations

Locations

Addenbrookes Hospital

Cambridge, United Kingdom
Epsom and St Helier Hospitals

Epsom, United Kingdom
Glsagow Royal Infirmary

Glasgow, United Kingdom
Homerton University Hospital NHS Foundation Trust

London, United Kingdom
Manchester Royal Infirmary

Manchester, United Kingdom
Queen Elizabeth University Hospital

Glasgow, United Kingdom
Royal Infirmary of Edinburgh

Edinburgh, United Kingdom
Royal London Hospital

London, United Kingdom
South Warwickshire Foundation Trust

Warwick, United Kingdom
St Georges Hospital

London, United Kingdom
St Johns Hospital

Livingston, United Kingdom
University College Hospital

London, United Kingdom
Universitäres Herz- und Gefäßzentrum Hamburg

Hamburg, 20246, Germany

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