| Autor: |
Wang Jing, MD, Ting Xu, PhD, Lirong Wu, MD, Pablo B. Lopez, MD, Clemens Grassberger, PhD, Susannah G. Ellsworth, MD, Radhe Mohan, PhD, Brian P. Hobbs, PhD, George R. Blumenschein, MD, Janet Tu, MD, Mehmet Altan, MD, Percy Lee, MD, Zhongxing Liao, MD, Steven H. Lin, MD, PhD |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
JTO Clinical and Research Reports, Vol 3, Iss 9, Pp 100391- (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2666-3643 |
| DOI: |
10.1016/j.jtocrr.2022.100391 |
| Popis: |
Introduction: Durvalumab after concurrent chemoradiation (CCRT) for NSCLC improves survival, but only in a subset of patients. We investigated the effect of severe radiation-induced lymphopenia (sRIL) on survival in these patients. Methods: Outcomes after CCRT (2010–2019) or CCRT followed by durvalumab (2018–2019) were reviewed. RIL was defined by absolute lymphocyte count (ALC) nadir in samples collected at end of CCRT; sRIL was defined as nadir ALC less than 0.23 × 109/L (the lowest tertile). Progression-free survival (PFS) and overall survival (OS) were calculated by the Kaplan-Meier method. Cox proportional hazard modeling evaluated associations between clinical variables and survival. Results: Of 309 patients, 192 (62%) received CCRT only and 117 (38%) CCRT plus durvalumab. Multivariable logistic regression analysis indicated that sRIL was associated with planning target volume (OR = 1.002, p = 0.001), stage IIIB disease (OR = 2.77, p = 0.04), and baseline ALC (OR = 0.36, p < 0.01). Durvalumab extended median PFS (23.3 versus 14.1 mo, p = 0.003) and OS (not reached versus 30.8 mo, p < 0.01). sRIL predicted poorer PFS and OS in both treatment groups. Among patients with sRIL, durvalumab did not improve survival (median = 24.6 mo versus 18.1 mo CCRT only, p = 0.079). On multivariable analyses, sRIL (OR = 1.81, p < 0.01) independently predicted poor survival. Conclusions: Severe RIL compromises survival benefits from durvalumab after CCRT for NSCLC. Measures to mitigate RIL after CCRT may be warranted to enhance the benefit of consolidation durvalumab. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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