Hidden cancer hunt: Full-Body scan could spot tumors in blood clot patients

NCT ID NCT04304651

Ongoing Diagnosis Sponsor: University Hospital, Brest Source: ClinicalTrials.gov ↗

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

Summary

This study looks at whether a detailed full-body scan called FDG PET/CT can find hidden cancers in people aged 50 and older who have had an unexplained blood clot. About 1,276 participants will get either the scan or standard cancer checks. The goal is to see if the scan catches more cancers early, which could lead to better treatment.

What this could mean

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

Active substance: FDG PET/CT scan
What this could lead to: If successful, this could show that advanced imaging like FDG PET/CT is better at catching hidden cancers early in people with unexplained blood clots, potentially improving survival.
What could go wrong: This is a diagnostic study, not a treatment trial. The scan may miss some cancers or lead to unnecessary follow-ups. Results may not apply to younger patients or those with provoked clots.

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Conditions

The condition(s) this trial relates to.

Embolism and Thrombosis pulmonary embolism venous thromboembolism Venous Thrombosis

As listed by the trial registrant

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

EMBOLISM AND THROMBOSIS

Contacts and locations

Locations

Brest University Hospital

Brest, France
CH Agen

Agen, France
CH des Pays de Morlaix

Morlaix, France, 29600, France
CHU Angers

Angers, France
CHU Saint-Etienne

Saint-Etienne, France
CHU de Clermont-Ferrand

Clermont-Ferrand, France
CHU de Dijon

Dijon, France
CHU de Limoges

Limoges, France
Hopital Montfort

Ottawa, Ontario, Canada
Hôpital Européen Georges Pompidou

Paris, France
Hôpital Saint Musse - CH Toulon

Toulon, France
Jewish General Hospital

Montreal, Quebec, Canada
Ottawa Hospital Research Institute

Ottawa, Ontario, Canada
Sherbrooke Hospital

Sherbrooke, Canada
Sunnybrook Research Institute

Toronto, Ontario, Canada
University Health Network

Toronto, Ontario, Canada

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