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Inflammatory and cardiac markers linked to VTE and bleeding risks in cancer patients on apixabanNew Blood Tests May Predict Clot and Bleed Risks in Cancer

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Key Takeaway
Consider inflammatory and cardiac markers as potential risk indicators for VTE and bleeding in cancer patients, pending prospective confirmation.

This study was a post hoc analysis of a randomized controlled trial involving 574 ambulatory cancer patients with a Khorana score ≥2, focusing on venous thromboembolism (VTE) and clinically relevant bleeding outcomes. It examined associations with inflammatory-related markers (C-reactive protein, growth differentiation factor-15) and cardiac markers (N-terminal pro-B-type natriuretic peptide, high-sensitivity troponin T), with follow-up at 1.0 months for most markers and C-reactive protein also assessed at 3 months; no comparator was reported.

Main results showed that elevated baseline growth differentiation factor-15 was associated with increased VTE risk (SHR 1.36, 95% CI 1.01-1.84), and increasing high-sensitivity troponin T from baseline to 1 month was linked to higher VTE risk (SHR 1.89, 95% CI 1.14-3.16). For bleeding risk, N-terminal pro-B-type natriuretic peptide (SHR 1.44, 95% CI 1.08-1.92) and C-reactive protein (SHR 1.38, 95% CI 1.07-1.76) were associated with increased risk. Absolute numbers for these outcomes were not reported.

Safety and tolerability data were not reported. Key limitations include the post hoc design and the need for prospective research to confirm findings. Practice relevance is limited to the development of nomograms for risk estimation, but causality was not established, and these associations should be interpreted cautiously without further validation.

  • Specific blood markers link to higher clot and bleeding risks.
  • Cancer patients needing blood clot prevention could benefit most.
  • Tests need more research before routine use in clinics.

Scientists found specific blood markers that signal higher risks of clots and bleeding in cancer patients.

Imagine starting cancer treatment only to worry about a blood clot forming in your leg. Many patients face this hidden danger while fighting their disease. Doctors want to catch these problems before they become emergencies.

Why Blood Clots Are a Major Concern

Cancer treatments can change how blood flows through the body. This makes clots more likely than in healthy people. Bleeding is also a risk when taking medicines to stop clots.

Finding the right balance is hard for doctors today. They need better tools to see who is in danger.

The Old Way of Guessing Risk

Doctors used to guess risk based on cancer type alone. This method often missed patients who were actually in danger. It was like trying to predict rain without checking the sky.

But here is the twist. New data shows we can look inside the body for clues.

Looking Inside the Body’s Signals

This study looked at tiny signals in the blood. Think of them like smoke detectors for inflammation and heart stress. These signals tell us when the body is under pressure.

Two markers showed up for clots. Two others pointed to bleeding risks.

Researchers checked blood from 574 cancer patients. They tracked who developed clots or bleeding over time. This was a careful look at real-world data.

High levels of one marker called GDF-15 raised clot risk. Another marker called NT-proBNP linked to bleeding.

This doesn’t mean this treatment is available yet.

Increasing levels of a heart marker called troponin also signaled higher clot risk. The team built simple tools to estimate these risks. These tools help doctors see the danger more clearly.

How to Use This New Info

These tools help doctors see risk more clearly. But they are not ready for every hospital right now. You should not change your medicine based on this alone.

Talk to your doctor about your personal risk factors. They know your full health history best.

What Comes Next for Patients

Scientists need to test these markers in new groups. Approval takes time to ensure safety for everyone. We must wait for more proof before wide use.

Future trials will check if these tests work better than current methods. If they pass, they could become standard care. This could help more patients stay safe during treatment.

Study Details

Study typeRct
Sample sizen = 574
EvidenceLevel 2
Follow-up1.0 mo
PublishedApr 2026
View Original Abstract ↓
BACKGROUND AND AIMS: Patients with cancer have increased risk of venous thromboembolism (VTE) and bleeding. Inflammatory and cardiac biomarkers may predict these complications, but their role remains unclear. This study examined associations between two inflammatory-related markers (C-reactive protein and growth differentiation factor-15) and two cardiac markers [N-terminal pro-B-type natriuretic peptide and high-sensitivity troponin T (hs-TnT)] with VTE and clinically relevant bleeding in cancer patients. METHODS: A post hoc analysis of the AVERT trial, which evaluated apixaban for VTE prevention in ambulatory cancer patients with a Khorana score of ≥2, was performed. Biomarkers were measured at baseline and 1 month, with C-reactive protein also at 3 months. Fine and Gray regression, accounting for competing risk of death and adjusted for age and advanced cancer, estimated subdistribution hazard ratios (SHRs) for VTE and clinically relevant bleeding. RESULTS: Of 574 patients, 514 provided baseline samples. One- and 3-month samples were available from 454 and 447, and 378 and 364, patients without prior VTE and bleeding events, respectively. Elevated baseline growth differentiation factor-15 was associated with increased VTE risk [SHR 1.36, 95% confidence interval (CI) 1.01-1.84]. N-terminal pro-B-type natriuretic peptide (SHR 1.44, 95% CI 1.08-1.92) and C-reactive protein (SHR 1.38, 95% CI 1.07-1.76) were linked to bleeding risk. Increasing high-sensitivity troponin T from baseline to 1 month was associated with higher VTE risk (SHR 1.89, 95% CI 1.14-3.16). Nomograms were developed to estimate VTE and clinically relevant bleeding risks. CONCLUSIONS: Select inflammatory-related and cardiac markers were associated with VTE and bleeding risks in cancer patients, which can be determined using developed nomograms. Prospective research is needed to confirm these findings.
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