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IBI 355

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Drug Profile

IBI 355

Alternative Names: IBI-355; SP-001

Latest Information Update: 17 Jul 2026

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At a glance

  • Originator Innovent Biologics
  • Class Immunoglobulins; Immunotherapies; Monoclonal antibodies
  • Mechanism of Action CD40 ligand inhibitors
  • Orphan Drug Status

    Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.

    No
  • New Molecular Entity Yes

Highest Development Phases

  • Phase I Autoimmune disorders; Sjogren's syndrome

Most Recent Events

  • 14 Jul 2026 IBI 355 licensed to Spear Therapeutics in the World
  • 14 Jul 2026 Innovent Biologics plans a phase II trial for Sjogren's syndrome in China in early 2027
  • 14 Jul 2026 Spero Therapeutics plans a phase II trial for Immunoglobulin G4 related diseases in Quarter 2 of 2027

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