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CJ Bioscience

Early Termination and Voluntary Withdrawal of Microbiome Immuno-Oncology Drug CJRB-101 Phase 1/2 Trial


  • Decision to early terminate and voluntarily withdraw the Phase 1/2 clinical trial of CJRB-101 (microbiome immuno-oncology drug) from US FDA and Korea MFDS
  • Reason: based on data, development progress, and business strategy review, not proceeding to Phase 2 and terminating early at current stage
  • Company plans to shift to new drug development and premium wellness business, strengthening profitability and cash flow-oriented structure
  • Humanitarian support and safety observation will be maintained for current trial participants
  • Decision date: 2026-05-12

KOSDAQ Filing Information


  • Filing: Major Management Matters Related to Investment Decision (Voluntary Withdrawal of Clinical Trial Plan, etc.)
  • Company: CJ Bioscience (311690)
  • Submission: CJ Bioscience
  • Receipt: 05-12-2026
  • Under KRX KOSDAQ Market Division