Hidden danger: study probes blood clot risk in cancer patients with COVID-19

NCT ID NCT04616846

First seen Jul 01, 2026 · Last updated Jul 01, 2026

Summary

This study investigates how often cancer patients with COVID-19 develop dangerous blood clots (venous thromboembolism). Researchers will screen participants using ultrasound and blood tests to detect clots, whether or not they cause symptoms. The goal is to understand the true rate of clotting in this vulnerable group and help guide future prevention and treatment strategies.

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 help doctors identify which cancer patients with COVID-19 are at highest risk for dangerous blood clots, leading to better screening and prevention guidelines.

What could go wrong

This is an observational study, not a treatment trial, so it won't directly test any new therapy. The findings may not apply to all cancer patients or all COVID-19 variants.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

cancer COVID-19 neoplasm Thromboembolism venous thromboembolism

As listed by the trial registrant

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

Contacts and locations

Locations

  • CHPG

    Monaco, 98000, Monaco

  • CHU Nice

    Nice, Alpes-Maritimes, 06000, France

  • Centre Antoine Lacassagne

    Nice, Alpes-Maritimes, 06189, France

  • Centre Azuréen de Cancérologie

    Mougins, Alpes-Maritimes, 06250, France

  • Clinique Saint-Georges

    Nice, Alpes-Maritimes, 06105, France

  • Clinique Saint-Jean

    Cagnes-sur-Mer, Alpes-Maritimes, 06800, France