U.S. FDA ACKNOWLEDGES ASTELLAS' RESUBMISSION OF BIOLOGICS LICENSE APPLICATION FOR ZOLBETUXIMAB AND SETS NEW ACTION DATE
If approved, the investigational therapy would offer a new treatment option for patients with advanced gastric and gastroesophageal junction cancers as the first and only CLDN18.2-targeted therapy in the
In the
"Astellas is committed to introducing new targeted therapies for hard-to-treat cancers. Those living with advanced gastric or GEJ cancer often face great unmet needs, and the FDA acknowledgment of the zolbetuximab BLA resubmission brings us one step closer to offering this important treatment option to eligible patients in the
The zolbetuximab BLA was resubmitted on
The zolbetuximab BLA was based on results from the Phase 3 SPOTLIGHT and GLOW clinical trials.3,4 The SPOTLIGHT study evaluated zolbetuximab plus mFOLFOX6 (a combination regimen that includes oxaliplatin, leucovorin, and fluorouracil) compared to placebo plus mFOLFOX6. The GLOW study evaluated zolbetuximab plus CAPOX (a combination chemotherapy regimen that includes capecitabine and oxaliplatin) compared to placebo plus CAPOX.
In both SPOTLIGHT and GLOW, approximately 38% of patients screened had tumors that were CLDN18.2 positive.3,4 CLDN18.2 positivity is defined as ≥75% of tumor cells demonstrating moderate-to-strong membranous CLDN18 staining, as determined by a validated immunohistochemistry assay.3,4
On
Astellas has already reflected the impact from the FDA acknowledgment of the BLA resubmission for zolbetuximab in its financial forecast for the current fiscal year ending
About Zolbetuximab
Zolbetuximab is a claudin 18.2-directed cytolytic antibody being investigated in combination with fluoropyrimidine- and platinum-containing chemotherapy for the first-line treatment of adults with locally advanced unresectable or metastatic human epidermal growth factor receptor 2 (HER2)-negative gastric or gastroesophageal junction (GEJ) adenocarcinoma whose tumors are claudin (CLDN) 18.2 positive. As an investigational first-in-class monoclonal antibody (mAb), zolbetuximab targets and binds to CLDN18.2, a transmembrane protein. In pre-clinical studies, zolbetuximab depleted CLDN18.2-positive cells via antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (
About Locally Advanced Unresectable Metastatic Gastric and Gastroesophageal Junction Cancer
Gastric cancer, also commonly known as stomach cancer, is the fifth most commonly diagnosed cancer worldwide.7 In the U.S., it is estimated that 130,263 people are living with gastric cancer, classifying it as a rare disease.1,8 In 2024, it is estimated that 26,890 people will be diagnosed with gastric cancer and 10,880 will die from the disease in the
INVESTIGATIONAL STUDIES
About SPOTLIGHT Phase 3 Clinical Trial
SPOTLIGHT is a Phase 3, global, multi-center, double-blind, randomized study, assessing the efficacy and safety of zolbetuximab plus mFOLFOX6 (a combination chemotherapy regimen that includes oxaliplatin, leucovorin, and fluorouracil) compared to placebo plus mFOLFOX6 as a first-line treatment in patients with locally advanced unresectable or metastatic HER2-negative gastric or GEJ adenocarcinoma whose tumors were CLDN18.2 positive. The study enrolled 565 patients at 215 study locations in the
Data from the SPOTLIGHT clinical trial were presented during the 2023
For more information, please visit clinicaltrials.gov under Identifier NCT03504397.
About GLOW Phase 3 Clinical Trial
GLOW is a Phase 3, global, multi-center, double-blind, randomized study, assessing the efficacy and safety of zolbetuximab plus CAPOX (a combination chemotherapy regimen that includes capecitabine and oxaliplatin) compared to placebo plus CAPOX as a first-line treatment in patients with locally advanced unresectable or metastatic HER2-negative gastric or GEJ adenocarcinoma whose tumors were CLDN18.2 positive. The study enrolled 507 patients at 166 study locations in the
Data from the GLOW study were initially presented at the
For more information, please visit clinicaltrials.gov under Identifier NCT03653507.
Investigational Pipeline in CLDN18.2
An expanded Phase 2 trial of zolbetuximab in metastatic pancreatic adenocarcinoma is in progress and recruiting patients. The trial is a randomized, multi-center, open-label study, evaluating the safety and efficacy of investigational zolbetuximab in combination with gemcitabine plus nab-paclitaxel as a first-line treatment in patients with metastatic pancreatic adenocarcinoma with CLDN18.2 positive tumors (defined as ≥75% of tumor cells demonstrating moderate to strong membranous CLDN18 staining based on a validated immunohistochemistry assay). For more information, please visit clinicaltrials.gov under Identifier NCT03816163.
In addition to zolbetuximab, ASP2138 is under development in our Primary Focus Immuno-Oncology area and is currently recruiting patients. ASP2138 is a bispecific monoclonal antibody that binds to CD3 and CLDN18.2, and it is currently in a Phase 1/1b study in participants with metastatic or locally advanced unresectable gastric or GEJ adenocarcinoma or metastatic pancreatic adenocarcinoma whose tumors have CLDN18.2 expression. The safety and efficacy of the agent under investigation have not been established for the uses being considered. For more information, please visit clinicaltrials.gov under Identifier NCT05365581.
There is no guarantee that the agent(s) will receive regulatory approval and become commercially available for the uses being investigated.
About Astellas
Cautionary Notes
In this press release, statements made with respect to current plans, estimates, strategies and beliefs and other statements that are not historical facts are forward-looking statements about the future performance of Astellas. These statements are based on management's current assumptions and beliefs in light of the information currently available to it and involve known and unknown risks and uncertainties. A number of factors could cause actual results to differ materially from those discussed in the forward-looking statements. Such factors include, but are not limited to: (i) changes in general economic conditions and in laws and regulations, relating to pharmaceutical markets, (ii) currency exchange rate fluctuations, (iii) delays in new product launches, (iv) the inability of Astellas to market existing and new products effectively, (v) the inability of Astellas to continue to effectively research and develop products accepted by customers in highly competitive markets, and (vi) infringements of Astellas' intellectual property rights by third parties.
Information about pharmaceutical products (including products currently in development) which is included in this press release is not intended to constitute an advertisement or medical advice.
References
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3 Shitara K, et al. Zolbetuximab plus mFOLFOX6 in patients with CLDN18.2-positive, HER2-negative, untreated, locally advanced unresectable or metastatic gastric or gastro-oesophageal junction adenocarcinoma (SPOTLIGHT): a multicentre, randomised, double-blind, phase 3 trial.
4 Shah, M.A., Shitara, K., Ajani, J.A. et al. Zolbetuximab plus CAPOX in CLDN18.2-positive gastric or gastroesophageal junction adenocarcinoma: the randomized, phase 3 GLOW trial. Nat Med (2023). https://doi.org/10.1038/s41591-023-02465-7.
5 "Astellas' VYLOY™ (Zolbetuximab) Approved in
6 Sahin U, et al. FAST: a randomised phase II study of zolbetuximab (IMAB362) plus EOX versus EOX alone for first-line treatment of advanced CLDN18.2-positive gastric and gastro-oesophageal adenocarcinoma. Ann Oncol. 2021;32(5):609-19.
7 Sung H, et al. Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin. 2021;71(3):209-49.
8 National Institutes of
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11 American Cancer Society. About esophagus cancer (03-20-2020). Available at https://www.cancer.org/content/dam/CRC/PDF/Public/8614.00.pdf. Accessed 11-13-2023.
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