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QLS 4131

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Drug Profile

QLS 4131

Alternative Names: QLS-4131

Latest Information Update: 12 Aug 2026

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At a glance

  • Originator Qilu Pharmaceutical
  • Class Antineoplastics; Immunoglobulin fragments; Immunotherapies; Recombinant fusion proteins; Trispecific antibodies
  • Mechanism of Action Antibody-dependent cell cytotoxicity; Cytotoxic T lymphocyte stimulants
  • 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 Multiple myeloma

Most Recent Events

  • 20 Jul 2026 Institute of Hematology & Blood Diseases Hospital plans a phase II trial for Amyloidosis (First line therapy) in China (SC, Injection) in July 2026 (NCT07751471)
  • 01 May 2026 Qilu Pharmaceutical plans a phase II trial for Multiple myeloma (Combination therapy) (SC) in June 2026 (NCT07560449)
  • 06 Dec 2025 Efficacy and adverse events data from a phase-I clinical trials in Multiple myeloma presented at the 67th American Society of Hematology Annual Meeting and Exposition(ASH-Hem-2025)

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