Beyond Performance Status.

Area of Science:

• Oncology
• Geriatrics
• Clinical Assessment

Background:

• The Eastern Cooperative Oncology Group Performance Status (ECOG PS) is a widely used but limited tool for assessing patient functional status in oncology.
• Developed over 40 years ago, ECOG PS is a unidimensional score that is subjective, physician-assessed, and fails to account for multimorbidity, frailty, or cognition.

Purpose of the Study:

• To highlight the limitations of the ECOG PS in modern oncology.
• To advocate for the adoption of more comprehensive patient assessment tools to better define patient phenotype and guide treatment decisions.

Main Methods:

• Review of the existing literature and clinical utility of the ECOG PS.
• Identification of weaknesses in the ECOG PS and exploration of complementary assessment measures.
• Evaluation of the Clinical Frailty Score as a potential alternative or adjunct.

Main Results:

• The ECOG PS, despite its historical utility and ease of use, is subjective, prone to bias, and does not capture crucial patient factors like frailty or cognitive status.
• Modern personalized oncology requires a more nuanced understanding of patient phenotype beyond a single functional score.
• The Clinical Frailty Score is presented as a valuable tool for patient triage and designing tailored treatments and rehabilitation interventions.

Conclusions:

• There is a critical need for oncologists to move beyond sole reliance on the ECOG PS.
• Integrating tools like the Clinical Frailty Score can lead to more appropriate patient stratification and personalized care planning.
• Enhanced patient assessment is essential to optimize treatment outcomes and mitigate adverse effects in the evolving landscape of cancer therapy.