EASIX and mortality after allogeneic stem cell transplantation.

Area of Science:

• Hematology
• Oncology
• Immunology

Background:

• Allogeneic stem cell transplantation (alloSCT) is a key immunotherapy for hematological malignancies.
• Endothelial dysfunction is associated with severe complications post-alloSCT.

Purpose of the Study:

• To investigate the predictive value of the Endothelial Activation and Stress Index (EASIX) score for mortality after alloSCT.
• To validate EASIX as an independent prognostic marker.

Main Methods:

• Retrospective cohort analysis across five centers in the USA and Germany.
• EASIX score calculated pre-conditioning (EASIX-pre) and correlated with overall survival (OS).
• Multivariable models used for analysis, with validation in a separate cohort.

Main Results:

• Increasing EASIX-pre scores significantly predicted lower OS post-alloSCT.
• The predictive model was successfully validated in an independent cohort.
• EASIX-pre also predicted transplant-associated microangiopathy and correlated with endothelial homeostasis biomarkers.

Conclusions:

• EASIX-pre is a robust predictor of mortality risk after alloSCT, independent of existing clinical scores.
• This biomarker panel offers a valuable tool for individual risk stratification in alloSCT recipients.
• EASIX-pre may help identify patients at higher risk for complications and guide clinical management.