Dong-A ST Files for Marketing Approval of Stiren Q Tablet for Acute/Chronic Gastritis, Phase 3 Trial Shows Non-Inferiority


  • Dong-A ST has filed for domestic marketing approval of Stiren Q tablet, an improved formulation of its flagship gastritis treatment Stiren with enhanced dosing convenience.
  • The Phase 3 trial demonstrated non-inferiority compared to existing Stiren tablet, and the once-daily dosing is expected to improve patient compliance.
  • If approved and reimbursed, the new drug could strengthen the gastritis treatment portfolio and contribute to sales growth.
  • [AI Summary]Dong-A Socio Holdings' subsidiary Dong-A ST applied for marketing approval of Stiren Q tablet. Phase 3 results showed non-inferiority and safety, but final approval is uncertain. Approval could enhance market competitiveness via once-daily dosing, positively impacting shareholder value.

KOSPI Filing Information


  • Major Management Matters Related to Investment Decision (Major Management Matters of Subsidiary)
  • Company: Dong-A Socio Holdings (000640)
  • Submission: Dong-A Socio Holdings Co.,Ltd
  • Under KRX KOSPI Market Division

  • Shares: 6,732,527
  • Price: 95,500 KRW
  • Market Cap: 643 B KRW