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Siltuximab - EUSA Pharma/Janssen Biotech

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Drug Profile

Siltuximab - EUSA Pharma/Janssen Biotech

Alternative Names: Anti-interleukin-6 monoclonal antibody - Centocor; cCLB8; Chimeric anti-interleukin-6 monoclonal antibody - Centocor; CNTO-328; Sylvant

Latest Information Update: 09 Jan 2026

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At a glance

  • Originator Janssen Biotech
  • Developer BeOne Medicines; Centocor; EUSA Pharma; Janssen Biotech; Memorial Sloan-Kettering Cancer Center; Papa Giovanni XXIII Hospital
  • Class Anti-inflammatories; Antineoplastics; Immunotherapies; Monoclonal antibodies
  • Mechanism of Action Interleukin 6 inhibitors
  • Orphan Drug Status

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

    Yes - Giant lymph node hyperplasia
  • New Molecular Entity Yes

Highest Development Phases

  • Marketed Giant lymph node hyperplasia
  • Phase II Multiple myeloma
  • No development reported Paraproteinaemia; SARS-CoV-2 acute respiratory disease; Smoldering multiple myeloma
  • Discontinued Myelodysplastic syndromes; Non-Hodgkin's lymphoma; Prostate cancer; Renal cell carcinoma

Most Recent Events

  • 09 Jan 2026 No development reported - Phase-III for SARS-COV-2 acute respiratory disease (Treatment-experienced, Combination therapy) in USA (IV)
  • 11 Dec 2025 Siltuximab is still in registered phase for Giant lymph node hyperplasia in China (IV)
  • 01 Jan 2024 China includes Siltuximab into the latest National Reimbursement Drug List 2024 (NRDL)

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