Drug updated on 10/30/2024
Dosage Form | Injection (intravenous; 100 mg lyophilized powder in a single-dose vial) |
Drug Class | claudin 18.2-directed cytolytic antibodies |
Ongoing and Completed Studies | ClinicalTrials.gov |
Indication
- Indicated 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 adenocarcinoma whose tumors are claudin (CLDN) 18.2 positive as determined by an FDA-approved test.
Latest News
Summary
- This summary is based on the review of three systematic review(s)/meta-analysis(es). [1-3]
- Progression-Free Survival (PFS): Zolbetuximab plus chemotherapy significantly improved PFS compared to chemotherapy alone across studies (HR (hazard ratio) 0.64; 95% CI (confidence interval) 0.49–0.84, p<0.01; HR 0.64; 95% CI 0.50–0.82). In the "specific positivity" group, the benefit was more pronounced (HR 0.45; 95% CI 0.25–0.81).
- Overall Survival (OS): Zolbetuximab plus chemotherapy consistently improved OS (HR 0.72; 95% CI 0.62–0.83, p<0.01; HR 0.73; 95% CI 0.68–0.84). Patients with high CLDN (Claudin) 18.2 expression showed greater benefit (HR 0.69; 95% CI 0.55–0.87, p=0.002), and in the "specific positivity" group, OS was significantly extended (HR 0.53; 95% CI 0.36–0.79).
- Objective Response Rate (ORR): No significant improvement in ORR was observed with Zolbetuximab plus chemotherapy (OR 1.15; 95% CI 0.87–1.53, p=0.34; RR 0.92; 95% CI 0.82–1.03).
- Zolbetuximab plus chemotherapy was associated with a higher risk of grade 3 or higher adverse events, particularly nausea and vomiting, in the general population.
- No significant safety risks were reported for Zolbetuximab-chemotherapy, trastuzumab plus pertuzumab-chemotherapy, and nivolumab-chemotherapy in the "specific positivity" group.
- The reviewed evidence focuses on patients with advanced CLDN18.2-positive gastric or gastroesophageal junction adenocarcinoma, with findings indicating more significant benefits in overall survival (OS) and progression-free survival (PFS) for those with high CLDN 18.2 expression when treated with Zolbetuximab plus chemotherapy.
Product Monograph / Prescribing Information
Document Title | Year | Source |
---|---|---|
Vyloy (zolbetuximab-clzb) Prescribing Information. | 2024 | Astellas Pharma US, Inc. Northbrook, Illinois |
Systematic Reviews / Meta-Analyses
Clinical Practice Guidelines
Document Title | Year | Source |
---|---|---|
Clinical practice guidelines for esophagogastric junction cancer: Upper GI Oncology Summit 2023. | 2024 | Gastric Cancer |
Pan-Asian adapted ESMO Clinical Practice Guidelines for the diagnosis, treatment and follow-up of patients with gastric cancer. | 2024 | ESMO Open |