Association Between Pretreatment Skeletal Muscle and Outcomes After CAR T-Cell Therapy

  • Kyuwan Lee
  • , Aleksi Iukuridze
  • , Tianhui He
  • , Alysia Bosworth
  • , Lanie Lindenfeld
  • , Jennifer Berano Teh
  • , Meagan Echevarria
  • , Sophia Albanese
  • , Liezl Atencio
  • , Rusha Bhandari
  • , F. Lennie Wong
  • , Andrew S. Artz
  • , Tanya Siddiqi
  • , Liana Nikolaenko
  • , Jasmine Zain
  • , Matthew Mei
  • , Geoffrey Shouse
  • , Leslie L. Popplewell
  • , Alex F. Herrera
  • , L. Elizabeth Budde
  • Stephen J. Forman, Saro H. Armenian

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Background: The purpose of this study was to examine the association between baseline skeletal muscle measurements, acute toxicity (immune effector cell–associated neurotoxicity syndrome [ICANS], cytokine release syndrome), and treatment efficacy in patients undergoing CAR T-cell therapy for B-lineage lymphoma. Patients and Methods: Skeletal muscle measurements were obtained from automated CT measurements in 226 consecutive patients who received CAR T-cell therapy between 2015 and 2021. The Kaplan-Meier method was used to examine progression-free survival (PFS) and overall survival (OS) at 1-year. Multivariable regression was used to calculate the hazard ratio (HR) with 95% confidence intervals, adjusted for covariates. Results: The median age of the cohort was 63.1 years (range, 18.5–82.4 years), and most patients were male (66%) and had primary refractory disease (58%). Patients with abnormally low skeletal muscle at baseline were at greater risk of ICANS (HR, 1.74; 95% CI, 1.05–2.87) and had longer length of hospitalization (mean 27.7 vs 22.9 days; P,.05) compared with those with normal muscle mass. Abnormal skeletal muscle was independently associated with risk of disease progression (HR, 1.70; 95% CI, 1.11–2.57) and worse survival (HR, 2.44; 95% CI, 1.49–4.00) at 1 year compared with normal skeletal muscle. Individuals who had abnormal skeletal muscle and high lactate dehydrogenase (LDH) levels at baseline had poor 1-year PFS (17%) and OS (12%) compared with those with normal skeletal muscle and LDH levels (72% and 82%, respectively; P,.001). Patients who had abnormal skeletal muscle and LDH levels had a 5-fold risk (HR, 5.34; 95% CI, 2.97–9.62) of disease progression and a 10-fold risk (HR, 9.73; 95% CI, 4.81–19.70) of death (reference: normal skeletal muscle, normal LDH), independent of prior lines of therapy, extent of residual disease at time of CAR T-cell therapy, functional status, or product. Conclusions: This information can be used for risk stratification prior to CAR T-cell therapy or to implement prehabilitation and nutritional optimization before lymphodepletion as well as thereafter. These efforts will be complementary to ongoing efforts toward sustained efficacy after CAR T-cell therapy.

Original languageEnglish
Pages (from-to)373-382
Number of pages10
JournalJNCCN Journal of the National Comprehensive Cancer Network
Volume21
Issue number4
DOIs
StatePublished - Apr 2023

Bibliographical note

Publisher Copyright:
© JNCCN—Journal of the National Comprehensive Cancer Network.

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