The application dimension of the Gastric Cancer Drugs market is segmented into adjuvant therapy, neoadjuvant therapy, metastatic treatment, and palliative care. Adjuvant therapy—post‑surgical drug regimens aimed at eradicating residual microscopic disease—accounts for roughly 30% of market revenue, reflecting its central role in curative protocols. Neoadjuvant therapy, administered before surgery to down‑stage tumors, contributes about 25%, driven by increasing adoption of combination regimens that improve resection rates. Metastatic treatment, targeting advanced‑stage disease with systemic agents such as HER2‑targeted antibodies and checkpoint inhibitors, dominates the landscape with an estimated 35% share, underscoring the high unmet need and premium pricing of novel agents. Finally, palliative care, focused on symptom management and quality‑of‑life extension in end‑stage patients, represents the remaining 10% of sales, reflecting lower drug intensity but essential therapeutic coverage. Together, these application segments define the overall market size and inform strategic investment across the Gastric Cancer Drugs segmentation.