ZL 1503
Alternative Names: ZL-1503Latest Information Update: 11 Dec 2025
At a glance
- Originator ZAI Lab
- Class Anti-inflammatories; Bispecific antibodies; Skin disorder therapies
- Mechanism of Action Interleukin 13 receptor antagonists; Interleukin 31 receptor antagonists
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Orphan Drug Status
No
Orphan designation is assigned by a regulatory body to encourage companies to develop drugs for rare diseases.
- New Molecular Entity Yes
Highest Development Phases
- Phase I Atopic dermatitis
Most Recent Events
- 08 Dec 2025 Pharmacodynamics data from preclinical trial in Atopic dermatitis released by Zai Labs
- 06 Nov 2025 Phase-I clinical trials in Atopic dermatitis in NewZealand (Parenteral) (NCT07235384)
- 13 Jun 2025 ZAI Lab announces intention to submit IND to Regulatory authorities for Atopic dermatitis by the end of year 2025