Bjorn Henning Gronberg, MD, PhD, on SCLC: Adjuvant Immunotherapy After CRT
2025 ASCO Annual Meeting
Bjorn Henning Gronberg, MD, PhD, of Norwegian University of Science and Technology (NTNU) and St. Olavs Hospital, presents phase II findings on the efficacy of atezolizumab after chemoradiotherapy (CRT) in limited-stage small cell lung cancer (SCLC) (LBA8005).
Transcript
Disclaimer: This video transcript has not been proofread or edited and may contain errors.
We enrolled 216 patients at 37 hospitals in six countries of Europe, and out of those, 170 patients were randomized to receive either one year of atezolizumab or observation. The main endpoint was overall survival, and unfortunately we did not see any signal of an effect, neither for progression-free survival, so this is clearly a negative trial. Looking at subgroups, we do see that there are some differences in the effect depending on gender. Among women, patients on the observation arm lived much longer than expected, while among men there appears to be a signal of an effect. We also see that the choice of platinum had some influence on the survival curves. We see that among patients who received carboplatin, maybe there's a signal of an effect quite similar to what we actually saw also in the ADRIATIC trial. Median treatment time was 8 courses. Overall, there were more side effects in the experimental arm, but maybe not any single adverse event—it's more the totality. On the other hand, patients on the observation arm didn't meet the investigators as often as the patients who came regularly for infusions of atezolizumab. I think overall this study shows that the concept of adding checkpoint inhibitors after chemoradiated therapy in limited-stage small cell lung cancer is tolerable, even if this intervention did not prolong PFS or overall survival.
The ASCO Post Staff
Asaf Maoz, MD, of Dana-Farber Cancer Institute/Mass General Brigham/Harvard Medical School, reviews the results of a prospective study of whole-body magnetic resonance imaging as part of cancer screening for individuals with Li-Fraumeni syndrome (Abstract 10501).
The ASCO Post Staff
William G. Wierda, MD, PhD, of The University of Texas MD Anderson Cancer Center, discusses two abstracts on lisocabtagene maraleucel (liso-cel) in relapsed/refractory (R/R) chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). In Abstract 7037, liso-cel with ibrutinib demonstrated better efficacy and safety compared with liso-cel monotherapy, with statistically significant differences for complete response rate and overall response rate. In Abstract 7039, patients with R/R CLL/SLL who had received two or more prior lines of therapy had improved response, delayed progression, and prolonged survival with liso-cel compared with a real-world cohort treated with standard-of-care therapy.
The ASCO Post Staff
Clifford A. Hudis, MD, FASCO, FACP, Chief Executive Officer of ASCO, discusses ASCO Guidelines Assistant, an AI-based collaboration between ASCO and Google Cloud which draws from ASCO’s evidence-based, published clinical practice guidelines, offering clinicians ready access to timely, trustworthy information.
The ASCO Post Staff
Giuseppe Curigliano, MD, PhD, of Istituto Europeo di Oncologia, IRCCS, University of Milano, discusses patient-reported outcomes from the phase III EMBER-3 trial, which investigated treatment with imlunestrant, investigator’s choice of standard endocrine therapy, or imlunestrant plus abemaciclib in patients with ER-positive, HER2-negative advanced breast cancer (Abstract 1001).
The ASCO Post Staff
Eric Huttenlocher Bent, MD, PhD, of Memorial Sloan Kettering Cancer Center, reviews results from the phase II Metacure trial (cohorts B2 and the B2 expansion), which looked at the efficacy of stereotactic body radiotherapy for PSMA-PET–detected oligometastatic prostate adenocarcinoma (Abstract 5014).
