Clinical characteristics and outcomes of BCMA-targeted CAR-T cell recipients with COVID-19 during the Omicron wave: a retrospective study - Scorecard - MDSpire

Clinical characteristics and outcomes of BCMA-targeted CAR-T cell recipients with COVID-19 during the Omicron wave: a retrospective study

  • By

  • Haiqiong Zheng

  • Shi Han

  • Yijin Chen

  • Houli Zhao

  • Rongrong Chen

  • Qiqi Zhang

  • Delin Kong

  • Mingming Zhang

  • Yongxian Hu

  • He Huang

  • February 21, 2025

  • 0 min

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Clinical Scorecard: Outcomes and Clinical Features of CAR-T Cell Patients Targeting BCMA with COVID-19 During the Omicron Surge: A Retrospective Analysis

At a Glance

CategoryDetail
ConditionRelapsed or refractory multiple myeloma (R/R-MM) patients treated with BCMA-targeted CAR-T cell therapy infected with COVID-19 during the Omicron wave
Key MechanismsBCMA-targeted CAR-T cell therapy induces immune deficiency increasing infection risk; Omicron variant has higher transmissibility and vaccine resistance but lower severity than Delta
Target PopulationPatients ≤75 years with R/R-MM who received BCMA-targeted CAR-T cell therapy between July 2018 and December 2022
Care SettingTertiary hospital setting with retrospective clinical data collection and follow-up

Key Highlights

  • High incidence of COVID-19 infection observed in R/R-MM patients post BCMA-targeted CAR-T therapy during Omicron surge
  • Severe cytokine release syndrome (CRS) occurred in 30.6% of patients during CAR-T therapy; overall response rate was 98%, with 67.3% achieving complete remission
  • COVID-19 severity classified as mild, moderate, or severe based on oxygen saturation and chest imaging; resolution defined by symptom clearance or negative testing

Guideline-Based Recommendations

Diagnosis

  • Use antigen or nucleic acid testing for SARS-CoV-2 to confirm COVID-19 infection
  • Classify COVID-19 severity by SpO2 levels and chest imaging findings

Management

  • Monitor patients closely for COVID-19 symptoms post CAR-T therapy due to immune deficiency
  • Manage CRS during CAR-T therapy per established grading criteria

Monitoring & Follow-up

  • Follow-up for COVID-19 resolution defined by symptom resolution or negative SARS-CoV-2 tests
  • Assess overall survival and COVID-19 duration using Kaplan–Meier estimator

Risks

  • Increased risk of severe COVID-19 due to immune dysfunction from MM and CAR-T therapy
  • Potential impaired vaccine response in BCMA-targeted CAR-T recipients

Patient & Prescribing Data

49 patients with R/R-MM treated with BCMA-targeted CAR-T cells, median age 60 years, majority DS stage III

High overall response rate (98%) to BCMA-targeted CAR-T therapy; significant incidence of CRS; COVID-19 infection risk remains elevated during Omicron variant surge

Clinical Best Practices

  • Obtain informed consent and adhere to ethical standards in data collection
  • Use standardized criteria (Lee criteria) to grade CRS during CAR-T therapy
  • Employ rigorous COVID-19 testing and classification protocols to guide clinical decisions
  • Perform statistical analyses to identify risk factors and outcomes in this patient population

References

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