Improving CAR T-Cell Therapy Monitoring Strategies and Access in Lymphoma

In a conversation with CancerNetwork®, Nausheen Ahmed, MD, spoke about optimizing monitoring strategies for patients with B-cell non-Hodgkin lymphoma who undergo treatment with CAR T-cell therapy.

Ahmed, an associate professor in the Division of Hematologic Malignancies and Cellular Therapeutics at the University of Kansas Medical Center, discussed the possibility of offering more flexible monitoring periods for patients in the context of findings from a real-world study published in Blood Advances.1 Data from her study showed that the occurrence of new onset cytokine release syndrome (CRS) and immune effector cell-associated neurotoxicity syndrome (ICANS) was rare at more than 2 weeks following CAR T-cell therapy infusion. Additionally, late non-relapse mortality generally resulted from infectious complications.

The FDA implemented a Risk Evaluation and Mitigation Strategy (REMS) to help manage the risk of severe CRS and ICANS by requiring patients to reside within 2 hours of an authorized treatment center for 4 weeks following CAR T-cell therapy infusion.2 According to the study authors, this mitigation strategy may create significant barriers to CAR T-cell therapy access among certain patients and caregivers who need to relocate as part of a treatment plan. 

Findings from Ahmed’s study supported the development of individualized monitoring strategies depending on the stability of the patient. She and her coauthors proposed a 2-week monitoring period for patients while allowing for an optional increase to 4 weeks based on factors such as physician comfort and availability of local community oncology support. As Ahmed emphasized during the discussion, having flexibility in these monitoring periods could help mitigate financial and geographic obstacles preventing adequate access to CAR T-cell therapy among patients.

“There has to be more of a hybrid model of care. There has to be more involvement of our referring doctors or community doctors in detecting and managing these infections or working with the specialized center in order to bypass the [emergency room] and other strategies to help these patients,” Ahmed said. “If there is enough data to say that the patients do not need extra restrictions beyond 2 weeks, which is what our studies show, then reconsidering the requirements will be one step towards decreasing disparities in access.”

References

1.        Ahmed N, Wesson W, Lutfi F, et al. Optimizing the post-CAR T monitoring period in recipients of axicabtagene ciloleucel, tisagenlecleucel, and lisocabtagene maraleucel. Blood Advances. Published online July 24, 2024. doi:10.1182/bloodadvances.2023012549

2.        Risk Evaluation and Mitigation Strategies (REMS) for autologous chimeric antigen receptor (CAR) T cell immunotherapies modified to minimize burden on healthcare delivery system. FDA. June 26, 2024. Accessed July 23, 2024. https://tinyurl.com/2m284rjy