~284 spots leftby Sep 2026

Cancer Screening for Blood Clots

(MVTEP2/SOME2 Trial)

Recruiting in Palo Alto (17 mi)
+19 other locations
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Academic
Recruiting
Sponsor: University Hospital, Brest
Must not be taking: Anticoagulants
Disqualifiers: Active malignancy, Recent paralysis, others
No Placebo Group

Trial Summary

What is the purpose of this trial?

This trial is testing if using a special imaging test called FDG-PET/CT can better detect hidden cancers in patients who have had their first unprovoked blood clot. The test works by using a sugary dye that cancer cells absorb, making them visible on the scan. The goal is to see if this method finds more hidden cancers compared to standard screening.

Will I have to stop taking my current medications?

The trial does not specify if you need to stop taking your current medications, but if you are on anticoagulation (blood thinners), you may not be eligible to participate.

What data supports the effectiveness of this treatment for cancer screening for blood clots?

Research shows that FDG PET/CT, a type of imaging test, is effective in detecting hidden cancers in patients with unexplained blood clots. It has high sensitivity, meaning it can accurately identify cancer, and often leads to a correct cancer diagnosis when further tests are done after a positive result.12345

Is FDG-PET/CT screening safe for humans?

FDG-PET/CT screening involves exposure to radiation, which is a consideration in its use, but it has been widely used in cancer screening programs, suggesting it is generally considered safe for humans when the benefits outweigh the risks.678910

How is the treatment 'Limited cancer screening + FDG PET/CT' unique for detecting blood clots related to cancer?

This treatment is unique because it uses FDG PET/CT, a type of imaging that helps identify cancer-related blood clots by distinguishing them from non-cancerous clots, which can guide appropriate treatment decisions.126710

Research Team

Eligibility Criteria

This trial is for people aged 50 or older who have had a blood clot (VTE) without any clear cause. They shouldn't have known clotting disorders, active cancer in the last 5 years, recent major surgery, paralysis, or been bedridden recently. Participants must be able to give consent and commit to follow-up appointments.

Inclusion Criteria

My blood clot was not caused by cancer or any known risk factors.
I am 50 or older and have a new diagnosis of DVT or PE.
My blood clot was not caused by recent surgery or being bedridden.
See 3 more

Exclusion Criteria

Unavailable to follow-up
Refusal or inability to provide informed consent
You are allergic to 18F-FDG or any of the ingredients in the product.
See 1 more

Trial Timeline

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Initial Cancer Screening

Participants undergo limited cancer screening or limited screening plus FDG PET/CT

1 month

Follow-up

Participants are monitored for missed occult cancers and other outcomes

1 year

Extended Follow-up

Participants are monitored for cancer-related mortality and other long-term outcomes

5 years

Treatment Details

Interventions

  • Limited cancer screening (Diagnostic Test)
  • Limited cancer screening + FDG PET/CT (Diagnostic Test)
Trial OverviewThe study is testing two ways of screening for hidden cancers in patients with unexplained blood clots: standard limited cancer screening versus adding a special imaging test called FDG PET/CT that can find cancer.
Participant Groups
2Treatment groups
Experimental Treatment
Active Control
Group I: Limited cancer screening + FDG PET/CTExperimental Treatment1 Intervention
Limited screening + FDG PET/CT
Group II: Limited cancer screeningActive Control1 Intervention
Limited screening alone.

Find a Clinic Near You

Who Is Running the Clinical Trial?

University Hospital, Brest

Lead Sponsor

Trials
597
Recruited
257,000+
Dr. Robert J. Corona profile image

Dr. Robert J. Corona

University Hospital, Brest

Chief Executive Officer since 2020

DO, MBA from Cornell University

Dr. Amy Tucker profile image

Dr. Amy Tucker

University Hospital, Brest

Chief Medical Officer since 2020

MD, MHCM

Ministry of Health, France

Collaborator

Trials
383
Recruited
722,000+

Anne-Sophie Lapointe

Ministry of Health, France

Chief Medical Officer since 2023

MD, Public Health at the French School of Public Health (EHESP)

Louisa Stüwe profile image

Louisa Stüwe

Ministry of Health, France

Chief Executive Officer since 2022

Public Administration and International Politics at Sciences Po Paris and Georgetown University

Canadian Institutes of Health Research (CIHR)

Collaborator

Trials
1,417
Recruited
26,550,000+

Dr. Paul C. Hébert

Canadian Institutes of Health Research (CIHR)

Chief Executive Officer

MD, University of Ottawa

Dr. Paul C. Hébert

Canadian Institutes of Health Research (CIHR)

Chief Medical Officer

MD, University of Ottawa

Ottawa Hospital Research Institute

Collaborator

Trials
585
Recruited
3,283,000+
Dr. Kathleen Gartke profile image

Dr. Kathleen Gartke

Ottawa Hospital Research Institute

Chief Medical Officer

MD, University of Ottawa

Dr. Rebecca Auer profile image

Dr. Rebecca Auer

Ottawa Hospital Research Institute

Chief Executive Officer

MD, Memorial Sloan-Kettering Cancer Centre

Findings from Research

Fludeoxyglucose PET/CT is effective in distinguishing between tumor thrombus and bland thrombus, which is crucial for deciding on anticoagulation treatment.
The case presented involves a rare occurrence of tumor thrombosis in the ovarian vein associated with recurrent uterine carcinosarcoma, highlighting the importance of advanced imaging in identifying such complications.
Rare case of an ovarian vein tumor thrombosis identified on fluorodeoxyglucose positron emission tomography/computed tomography.Chandra, P., Agrawal, A., Purandare, N., et al.[2020]
In a study of 172 patients with unprovoked venous thromboembolism (VTE), FDG-PET/CT demonstrated good diagnostic accuracy for detecting occult cancer, with a sensitivity of 90% and specificity of 85% when considering positive and equivocal results together.
The method identified malignancy in 70% of patients with positive results and only 0.7% in those with negative results, indicating its potential effectiveness in cancer screening for this specific patient group.
Performance of 18F-fluorodesoxyglucose positron-emission tomography combined with low-dose computed tomography for cancer screening in patients with unprovoked venous thromboembolism.Robin, P., Le Roux, PY., Lacut, K., et al.[2018]
FDG PET/CT is a promising non-invasive imaging technique that could potentially replace multiple cancer screening tests, showing excellent sensitivity and negative predictive value for detecting hidden cancers in patients with unprovoked venous thromboembolism (VTE).
The procedure is reproducible with a high reliability (kappa value of 0.75), and while false positives can lead to unnecessary follow-ups, they often result in actual cancer diagnoses, indicating its utility in high-risk patients.
18F-Fluorodeoxyglucose positron emission/computed tomography for occult cancer among patients with unprovoked venous thromboembolism: What do we know?Delluc, A., Robin, P.[2022]

References

Rare case of an ovarian vein tumor thrombosis identified on fluorodeoxyglucose positron emission tomography/computed tomography. [2020]
Performance of 18F-fluorodesoxyglucose positron-emission tomography combined with low-dose computed tomography for cancer screening in patients with unprovoked venous thromboembolism. [2018]
18F-Fluorodeoxyglucose positron emission/computed tomography for occult cancer among patients with unprovoked venous thromboembolism: What do we know? [2022]
Utility of FDG PET/CT for assessment of lung nodules identified during low dose computed tomography screening. [2021]
Application of PET and PEt/CT imaging for cancer screening. [2016]
Detection of thyroid cancer by an FDG-PET cancer screening program: a Japanese nation-wide survey. [2016]
Performance of 18F-fluorodesoxyglucose positron-emission tomography/computed tomography for cancer screening in patients with unprovoked venous thromboembolism: Results from an individual patient data meta-analysis. [2021]
Radiation exposure and risk-benefit analysis in cancer screening using FDG-PET: results of a Japanese nationwide survey. [2016]
Sensitivity of 2-[18F]fluoro-2-deoxyglucose positron emission tomography for advanced colorectal neoplasms: a large-scale analysis of 7505 asymptomatic screening individuals. [2019]
10.United Statespubmed.ncbi.nlm.nih.gov
Detection of breast cancer in an FDG-PET cancer screening program: results of a nationwide Japanese survey. [2016]