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FL 501

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Drug Profile

FL 501

Alternative Names: FL-501

Latest Information Update: 08 May 2026

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At a glance

  • Originator Adimab; Flame Biosciences
  • Developer Leap Therapeutics
  • Class Antineoplastics; Immunotherapies; Monoclonal antibodies
  • Mechanism of Action Antibody-dependent cell cytotoxicity; Growth differentiation factor 15 inhibitors; 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
  • Available For Licensing Yes

Highest Development Phases

  • Preclinical Cachexia

Most Recent Events

  • 31 Dec 2025 Leap Therapeutics has pending patent for FL 501
  • 23 Jun 2025 FL 501 is available for licensing as of 23 Jun 2025. www.leaptx.com
  • 13 May 2025 Pharmacodynamics and adverse events data from preclinical trials in Cachexia released by Leap Therapeutics

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