Zai Lab Announces Dosing of First Participant in Global Phase 1/1b study of ZL-1503, an IL-13/IL-31R Bispecific Antibody for the Treatment of Atopic Dermatitis
Monday, December 8, 2025 BiopharmaWatch Research 1 min read
Key Takeaway: Zai Lab Announces Dosing of First Participant in Global Phase 1/1b study of ZL-1503, an IL-13/IL-31R Bispecific Antibody for the Treatment of Atopic Dermatitis
Price reaction · baseline $19.5 (2025-12-05 close) · clean, no other ZLAB news in the window
day 0 close · peak
-2.3%
BiopharmaWatch Analysis
From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+60%
120-day peak, hindsight
Typical move
2.2%
average across 15 past catalysts
Cash runway
~28 mo
Low dilution risk
Lead asset
ZL-1310
Phase 3 · Small-cell Lung Cancer
Full Press Release Details
Zai Lab Announces Dosing of First Participant in Global Phase 1/1b study of ZL-1503, an IL-13/IL-31R Bispecific Antibody for the Treatment of Atopic Dermatitis.