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Samsung Bioepis wins FDA Fast Track for anticancer drug candidate

The Korea Times 21 October 2026 2 min read

โฎ BeforeExisting Nectin-4 targeted cancer drugs have a narrow safe-dose range.
โœ… NowSBE303 has FDA Fast Track designation as a candidate still in development.

In short

  • The FDA granted Fast Track designation to SBE303, an anticancer drug candidate, the company said.
  • SBE303 targets Nectin-4, a protein found in urothelial, lung and breast cancers.
  • It pairs a Nectin-4 antibody with a topoisomerase I inhibitor, aiming to widen the safe dose range.

Why the Good News Desk likes this one

Existing Nectin-4 targeted drugs have a narrow gap between an effective dose and a harmful one. SBE303 is designed to widen that gap by using its own linker and a potent anticancer agent. Fast Track status speeds regulatory review, but SBE303 is still a candidate, not an approved treatment.

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From The Korea Times

Samsung Bioepis has received Fast Track designation from the U.S. Food and Drug Administration (FDA) for SBE303, an anticancer drug candidate based on antibody-drug conjugate (ADC) technology, the company said Wednesday. SBE303 is the first novel drug candidate in Samsung Bioepis' pipeline. It is an ADC, a type of biopharmaceutical drug designed to deliver powerful cancer-killing agents directly to cancer cells while minimizing damage to healthy tissues. ADCs are oftentimes referred to as "biological missiles" because of their targeted approach. SBE303 targets Nectin-4, a cell adhesion...

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