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HSK 44459

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Drug Profile

HSK 44459

Alternative Names: HSK-44459

Latest Information Update: 03 Apr 2026

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At a glance

  • Originator Haisco Pharmaceutical Group
  • Class Anti-inflammatories; Antifibrotics; Skin disorder therapies
  • Mechanism of Action Type 4 cyclic nucleotide phosphodiesterase 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 II Atopic dermatitis
  • Phase I Idiopathic pulmonary fibrosis

Most Recent Events

  • 31 Mar 2026 Haisco Pharmaceutical Group plans a phase III trial for Pulmonary fibrosis in April 2026 (PO, Tablet) (NCT07503587)
  • 02 Sep 2025 Haisco Pharmaceutical plans a phase II trial for Plaque psoriasis in China (PO) in September 2025 (NCT07150988)
  • 17 Jul 2025 Haisco Pharmaceutical plans a phase II trial for Behcet's-syndrome (Treatment experienced) in July 2025 (PO) (NCT07070739)

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