Validating the Korean Geriatric Assessment Tool in Elderly Multiple Myeloma Patients: A Multicenter Study

Area of Science:

• Geriatric Oncology
• Hematology
• Clinical Trial Methodology

Background:

• Elderly patients with multiple myeloma (MM) often have unique treatment considerations.
• Frailty assessment is crucial for optimizing treatment and preventing adverse events in this population.
• The Korean Cancer Study Group Geriatric Score-7 (KG-7) is a novel tool for frailty screening.

Purpose of the Study:

• To evaluate the effectiveness of the KG-7 frailty screening tool in elderly multiple myeloma (MM) patients.
• To determine if KG-7 can aid in preventing under- or over-treatment in this demographic.
• To assess KG-7's ability to predict survival and treatment toxicities.

Main Methods:

• A prospective pilot cohort study involving 100 elderly patients (≥70 years) with newly diagnosed MM.
• Patients were assessed using the KG-7 index, with a cutoff of <5 indicating frailty.
• Follow-up included survival and toxicity assessments over a median of 26.8 months.

Main Results:

• 31% of patients were classified as frail using the KG-7 index.
• No significant association was found between frailty indices and overall survival.
• Frail patients by KG-7 (and simplified frailty index) showed a significantly higher risk of grade 3-4 non-hematologic toxicity (p=0.043).

Conclusions:

• The KG-7 tool effectively identified elderly MM patients at higher risk for severe non-hematologic toxicities.
• The pilot study did not demonstrate KG-7's predictive value for survival.
• Larger studies are warranted to explore KG-7's utility in tailoring treatment regimens for elderly MM patients.