New 3rd gen TKI in EGFR+ patients to consider with strong efficacy, only available in China currently. Shows again that ORR is not better with the newer drug, rather its more the duration of response which is far superior.
Aumolertinib (formerly almonertinib; HS-10296) is a novel third-generation epidermal growth factor receptor tyrosine kinase inhibitor approved in China. This double-blind phase III trial evaluated the efficacy and safety of aumolertinib compared with gefitinib as a first-line treatment for locally advanced or metastatic EGFR-mutated non–small-cell lung cancer (NSCLC; ClinicalTrials.gov identifier: NCT03849768).
Patients at 53 sites in China were randomly assigned 1:1 to receive either aumolertinib (110 mg) or gefitinib (250 mg) once daily. The primary end point was progression-free survival (PFS) per investigator assessment.
A total of 429 patients who were naïve to treatment for locally advanced or metastatic NSCLC were enrolled. PFS was significantly longer with aumolertinib compared with gefitinib (hazard ratio, 0.46; 95% CI, 0.36 to 0.60; P < .0001). The median PFS with aumolertinib was 19.3 months (95% CI, 17.8 to 20.8) versus 9.9 months with gefitinib (95% CI, 8.3 to 12.6). Objective response rate and disease control rate were similar in the aumolertinib and gefitinib groups (objective response rate, 73.8% and 72.1%, respectively; disease control rate, 93.0% and 96.7%, respectively). The median duration of response was 18.1 months (95% CI, 15.2 to not applicable) with aumolertinib versus 8.3 months (95% CI, 6.9 to 11.1) with gefitinib. Adverse events of grade ≥ 3 severity (any cause) were observed in 36.4% and 35.8% of patients in the aumolertinib and gefitinib groups, respectively. Rash and diarrhea (any grade) were observed in 23.4% and 16.4% of patients who received aumolertinib compared with 41.4% and 35.8% of those who received gefitinib, respectively.
Aumolertinib is a well-tolerated third-generation epidermal growth factor receptor tyrosine kinase inhibitor that could serve as a treatment option for EGFR-mutant NSCLC in the first-line setting.
Another possible option for first line NSCLC EGFR mutated (non-exon 20) is Osimertinib (osi). Osi and chemotherapy had less brain metastases. And with Amivantamab and Lazertinib (EGFR inhibitor), the combination had better PFS and OS (HR0.8). Higher toxicity though with 10% discontinuation vs 3% for Osimertinib. This is interim analysis, toxicity was EGFR related mostly.
Osimertinib resulted in a significant progression-free survival benefit as compared with placebo: the median progression-free survival was 39.1 months with osimertinib versus 5.6 months with placebo in the EGFR mutated patients. Osmiertinib shows efficacy in patients with EGFR mutation who underwent curative surgery or chemoradiotherapy.
Perioperative nivolumab (Nivo) showed a 20% 18-month EFPS improvement. This is another option to consider for your patients with stage IIA-IIIB NSCLC. Of note, the study arm received chemo + Nivo x 4 cycles preoperatively, then 12 months of Nivo therapy, and toxicities were as expected.
FCS medical oncologist and hematologist Ernesto Bustinza-Linares, MD has co-authored an abstract published in the American Society of Clinical Oncology Journal, JCO Precision Oncology, that uncovers a new testing method to determine personalized care options for patients with metastatic non-small cell lung cancer (NSCLC). The abstract’s authors address the limitations of existing guidelines that recommend checkpoint immunotherapy, sometimes in combination with chemotherapy, for treating NSCLC, which often discounts patient variability and immune factors. The findings from the study show that by incorporating additional plasma proteome-based testing, combined with the standard protein inhibitor testing, clear differences in patient outcomes were observed after applying targeted treatments based on the testing results.
This is another target for adjuvant therapy. The results are impressive. Notice that there was no chemotherapy in the study arm. Patients started on alectinib after surgery. Chemotherapy is losing ground to more tolerable treatments, more to follow, most likely, in the future.
FCS Hematology Oncology Review creates a platform for our physician network to observe the most recent articles and studies available in the oncology and hematology world. By sharing these articles we are building our wealth of knowledge of new observations and treatments as they come available.
