Dizal (SSE:688192), a biopharmaceutical company committed to developing novel medicines for the treatment of cancer and immunological diseases, announced the U.S. Food and Drug Administration (FDA) approval of Zegfrovy (sunvozertinib) for the treatment of adult patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) exon 20 insertion mutations (exon20ins), as detected by an FDA-approved test, whose disease has progressed on or after platinum-based chemotherapy.
Zegfrovy, which has received Priority Review and Breakthrough Therapy Designation from the FDA, is the only approved targeted oral treatment for NSCLC with EGFR exon20ins. This indication is approved under Accelerated Approval based on overall response rate and duration of response. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial.
“We are proud to have developed Zegfrovy, a first-in-class oral therapy that offers a more effective treatment option with enhanced safety and ease of administration for NSCLC patients with EGFR exon20ins,” said Dr. Xiaolin Zhang, CEO of Dizal. “The accelerated approval of Zegfrovy marks a significant milestone that underscores our commitment to developing groundbreaking new medicines for patients with high unmet medical needs around the world.”
Zegfrovy is an oral, irreversible EGFR inhibitor with uniquely designed molecular structure targeting a wide spectrum of EGFR mutations with wild-type EGFR selectivity. In August 2023, Zegfrovy received accelerated approval in China. Today’s FDA approval follows Breakthrough Therapy Designation and Priority Review granted by both the U.S. FDA and the Center for Drug Evaluation (CDE)of China’s National Medical Products Administration (NMPA).
The FDA approval is supported by data from the multinational pivotal study WU-KONG1 Part B (WU-KONG1B), aiming to investigate the efficacy and safety of Zegfrovy in relapsed or refractory NSCLC with EGFR exon20ins. The study results were featured as an oral presentation at the 2024 American Society of Clinical Oncology (ASCO) Annual Meeting and were recently published in the Journal of Clinical Oncology.
“As the world's only approved targeted oral therapy for EGFR exon20ins NSCLC, Zegfrovy has expanded the treatment paradigm in this therapeutic area that has long lacked convenient and effective treatment options,” said Pasi A. Jänne, MD, PhD, Dana-Farber Cancer Institute of Harvard Medical School and lead principal investigator of WU-KONG1B. “Research findings from WU-KONG1B have demonstrated Zegfrovy’s significant therapeutic effects with consistent efficacy across both Asian and non-Asian patient populations. Its convenient once-daily oral dosing substantially improves administration convenience and patient adherence, which is an increasingly critical factor as lung cancer care shifts toward chronic disease management. The U.S. approval of Zegfrovy® marks a landmark in scientific advancement and represents a meaningful milestone in addressing the long-standing unmet medical needs of this underserved patient population."
“Zegfrovy has demonstrated breakthrough therapeutic value in the treatment of EGFR exon20ins NSCLC, as shown in a rigorous multinational clinical trial. Its potent antitumor activity, manageable safety profile, and convenient oral administration position it as an optimal treatment option in clinical practice,” said Prof. James Chih-Hsin Yang, MD, PhD, National Taiwan University Cancer Center Hospital and the Co-lead principal investigator of WU-KONG1B. “The approval of Zegfrovy in major global markets not only offers new hope for patients, but also reinforces our commitment to patient-centered research and the continued advancement of precision medicine in lung cancer."
“In NSCLC, EGFR exon20ins represent the third most common type of EGFR mutation. EGFR exon20ins are particularly challenging to treat due to their unique spatial conformation, diverse mutation subtypes, and high heterogeneity. As a result, patients face a poor prognosis and limited treatment options,” said Prof. Mengzhao Wang, MD, PhD, lead principal investigator of the China-based pivotal study WU-KONG6 of Zegfrovy and principal investigator of WU-KONG1B at Peking Union Medical College Hospital, “The results of the WU-KONG6 study demonstrated Zegfrovy’s clinical benefit superior to current options and lead to the drug’s approval in China. The U.S. approval of Zegfrovy will enable more patients around the world to benefit from this drug.”
The FDA simultaneously approved Thermo Fisher Scientific’s Oncomine™ Dx Express Test as a next-generation sequencing (NGS) companion diagnostic (CDx) for Zegfrovy to identify NSCLC patients with EGFR Exon20 insertions. NGS testing is recognized as a critical technology in cancer genomic profiling, facilitating the rapid and precise detection of DNA mutations in tumor cells. Combined with the Ion Torrent™ Genexus™ Dx System, the test delivers NGS results in as little as 24 hours to help inform more timely treatment decisions in patients with EGFR exon20ins NSCLC.
Additionally, Dizal has completed enrollment for its multinational phase III pivotal WU-KONG28 study, evaluating Zegfrovy versus platinum-based doublet chemotherapies in treatment naïve NSCLC patients with EGFR exon20ins across 16 countries and regions. At the 2023 European Society for Medical Oncology (ESMO) Annual Meeting, Dizal reported that Zegfrovy, as a single oral agent, achieved a confirmed objective response rate (ORR) of 78.6% and a median progression-free survival (mPFS) of 12.4 months in the first-line setting. With its potent antitumor activity and favorable safety profile, Zegfrovy demonstrated strong potential as an optimalfirst-line treatment for patients with EGFR exon20ins NSCLC.
Ref : https://www.guidetopharmacology.org/GRAC/LigandDisplayForward?ligandId=11672
