Zai Lab Reports $457M Full‑Year Revenue – 16% Growth Driven by Xacduro and Nuzyra Expansion

Zai Lab (NASDAQ: ZLAB, HKG: 9688) announced Q4 and full‑year 2025 financial results, with net product revenue reaching USD 457.2 million (up 16% YoY). The growth was primarily driven by increased sales volumes of Xacduro (durlobactam/sulbactam) and Nuzyra (omadacycline), alongside steady performance from the PARP inhibitor franchise.

Financial Performance Summary

MetricQ4 2025Full‑Year 2025YoY Growth
Net Product RevenueUSD 127.1 MUSD 457.2 M+16% (CER)

Core Product Performance

ProductQ4 2025 ($M)FY 2025 ($M)Key Highlights
Zejula (niraparib)56.0 (+16%)189.0Hospital sales leader among PARP inhibitors for ovarian cancer in China despite competition
Vyvgart (efgartigimod)21.994.2Q4 includes USD 5.6M NRDL renewal rebate
Xacduro (durlobactam/sulbactam)10.7 (+225%)22.9 (+593%)Rapid growth post Q4 2024 launch
Nuzyra (omadacycline)16.0 (+45%)60.8 (+41%)Expanded market coverage and penetration

2026 Strategic Pipeline Milestones

AssetClass2026 Milestone
Zocilurtatug pelitecan (zoci)DLL3 ADC3 registrational/pivotal studies: 2L+ SCLC, 1L SCLC, extrapulmonary NECs
ZL‑1503IL‑13/IL‑31Rα bispecificFirst‑in‑Human (FIH) Phase 1/1b data release
ZL‑6201LRRC15 ADCGlobal Phase 1 ongoing
ZL‑1222PD‑1/IL‑12 immunocytokineIND‑enabling studies completion
ZL‑1311MUC17 T‑cell engagerIND submission targeted

Strategic Priorities

  • Oncology Leadership: DLL3 ADC (zoci) advances to pivotal studies across small cell lung cancer (SCLC) and neuroendocrine carcinomas, positioning Zai Lab in high‑unmet‑need tumor types.
  • Immunology Expansion: IL‑13/IL‑31 bispecific targets atopic dermatitis and pruritus; FIH data will inform differentiation vs. existing IL‑13/IL‑31 programs.
  • Novel Modalities: Investment in T‑cell engagers and immunocytokines beyond IL‑12 diversifies pipeline beyond traditional antibodies and ADCs.
  • China Commercial Execution: Zejula maintains PARP inhibitor leadership despite competitive pressure; Xacduro and Nuzyra demonstrate launch execution capabilities.

Market Context

FactorImpact
China Biotech Revenue Growth16% growth in challenging pricing environment demonstrates commercial resilience
Xacduro Trajectory593% annual growth validates antibiotic demand amid antimicrobial resistance concerns
DLL3 ADC CompetitionZai Lab joins Amgen, Roche, and others in SCLC TCE/ADC race; registrational studies critical for first‑mover positioning
Immunocytokine InnovationPD‑1/IL‑12 fusion represents next‑generation immuno‑oncology approach; IND‑enabling studies progress supports 2027 clinical entry

Forward‑Looking Statements
This brief contains forward‑looking statements regarding 2026 revenue guidance, pipeline milestone achievement, and clinical data readouts. Actual results may differ due to risks including competitive dynamics, clinical trial enrollment challenges, and reimbursement negotiations.-Fineline Info & Tech