High Metabolic Tumor Volume is Associated with Decreased Efficacy of Axicabtagene Ciloleucel in Large B-cell Lymphoma
Digital Object Identifier (DOI)
High metabolic tumor volume (MTV) predicts worse outcomes in lymphoma treated with chemotherapy. However, it is unknown if this holds for patients treated with axicabtagene ciloleucel (axi-cel), an anti-CD19 targeted chimeric antigen receptor T-cell therapy. The primary objective of this retrospective study was to investigate the relationship between MTV and survival (overall survival [OS] and progression-free survival [PFS]) in patients with relapsed/refractory large B-cell lymphoma (LBCL) treated with axi-cel. Secondary objectives included finding the association of MTV with response rates and toxicity. The MTV values on baseline positron emission tomography of 96 patients were calculated via manual methodology using commercial software. Based on a median MTV cutoff value of 147.5 mL in the first cohort (n = 48), patients were divided into high and low MTV groups. Median follow-up for survivors was 24.98 months (range, 10.59-51.02 months). Patients with low MTV had significantly superior OS (hazard ratio [HR], 0.25; 95% confidence interval [CI], 0.10-0.66) and PFS (HR, 0.40; 95% CI, 0.18-0.89). Results were successfully validated in a second cohort of 48 patients with a median follow-up for survivors of 12.03 months (range, 0.89-25.74 months). Patients with low MTV were found to have superior OS (HR, 0.14; 95% CI, 0.05-0.42) and PFS (HR, 0.29; 95% CI, 0.12-0.69). In conclusion, baseline MTV is associated with OS and PFS in axi-cel recipients with LBCL.
Was this content written or created while at USF?
Citation / Publisher Attribution
Blood Advances, v. 4, issue 14, p. 3268-3278
Scholar Commons Citation
Dean, Erin A.; Mhaskar, Rahul S.; Lu, Hong; Mousa, Mina S.; Krivenko, Gabriel S.; Lazaryan, Aleksandr; Bachmeier, Christina A.; Nishihori, Taiga; Davila, Marco L.; Khimani, Farhad; Liu, Hien D.; Pinilla-Ibarz, Javier; Shah, Bijal D.; Jain, Michael D.; Balagurunathan, Yoganand; and Locke, Frederick L., "High Metabolic Tumor Volume is Associated with Decreased Efficacy of Axicabtagene Ciloleucel in Large B-cell Lymphoma" (2020). Internal Medicine Faculty Publications. 142.