Sunvozertinib has shown promising results in patients with non–small cell lung cancer with an EGFR exon 20 insertion mutation.
The NDA of sunvozertinib for the treatment of patients with relapsed/refractory NSCLC with EGFR exon 20 insertion mutations whose disease has progressed on or after platinum-based chemotherapy has been submitted to the FDA, according to Dizal Pharmaceutical, the drug’s developer.1
The submission is supported by the pivotal phase 2 WU-KONG1 part B study. Data presented at the 2024 ASCO Annual Meeting showed that the best overall response rate (ORR) was 54.3% per independent review committee, meeting the primary end point of the study, and 2.9% of patients had a confirmed complete response. The disease control rate was 90.8%. With a median follow-up of 5.5 months, the duration of response was not yet met, and 74.6% of responders had ongoing response.2
Regarding safety, the observed adverse events (AEs) were similar to previous reports of sunvozertinib in other studies. The most common treatment-emergent AEs included diarrhea, skin rash, and increased creatine phosphokinase. Most AEs were grade 1 or 2 and manageable.
“In terms of safety, it is an oral single agent, and the AEs we have found from part B are consistent with WU-KONG6 [NCT05668988] data we have reported previously. The diarrhea increased a few percentages and partly reflect [that this] is a global study. And we have different regions, they have different levels of experience to manage that AE,” said Xiaolin Zhang, PhD, chief executive officer of Dizal, in an interview with Targeted OncologyTM. “Still, that is a very tolerable agent, because it is a single agent, oral, you do not need [intravenous (IV) access], you do not have any IV-related injection site adverse effects. And you do not have to combine with the chemo[therapy], because once you have to combine with chemo[therapy], there are a lot of issues.”
In April 2024, the FDA granted breakthrough therapy designation to sunvozertinib in this patient population. Further, the agent is already approved in China, supported by data from the WU-KONG6 clinical trial.3
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