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HDP 101

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Drug Profile

HDP 101

Alternative Names: HDP-101; HDP101-ATAC

Latest Information Update: 06 Jan 2026

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At a glance

  • Originator Heidelberg Pharma AG
  • Class Antineoplastics; Cyclic peptides; Drug conjugates; Immunoconjugates; Immunotoxins; Monoclonal antibodies
  • Mechanism of Action DNA-directed RNA polymerase inhibitors
  • Orphan Drug Status

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

    Yes - Multiple myeloma
  • New Molecular Entity Yes
  • Available For Licensing Yes

Highest Development Phases

  • Phase I/II Multiple myeloma

Most Recent Events

  • 12 Jun 2025 Updated adverse events and efficacy data from a phase-I/II trial in Multiple myeloma presented at the 30th Congress of the European Haematology Association (EHA-2025)
  • 07 Dec 2024 Efficacy and adverse events data from a phase I/II trial on multiple myeloma presented at the 66th American Society of Hematology Annual Meeting and Exposition (ASH-2024)
  • 01 Oct 2024 Efficacy data from a phase I/IIa trial in Multiple myeloma released by Heidelberg Pharma

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