Operating primarily in Mainland China and Hong Kong, Zai Lab Limited is a biopharmaceutical company focused on the discovery, development, and commercialization of innovative medical treatments. Their therapeutic portfolio spans oncology, autoimmune conditions, infectious diseases, and neurological disorders. Currently available products in their portfolio include Zejula, a once-daily small-molecule PARP 1/2 inhibitor; Optune, a medical device leveraging tumor treating fields; NUZYRA, an antimicrobial agent for specific acute bacterial skin and skin structure infections and community-acquired bacterial pneumonia; and Qinlock, indicated for gastrointestinal stromal tumors. Beyond its commercial offerings, Zai Lab boasts an extensive pipeline of investigational therapies. These include Odronextamab for various B-cell lymphomas; Repotrectinib, a tyrosine kinase inhibitor targeting ROS1 and TRK pathways in both TKI-naïve and pretreated cancer patients; Margetuximab for breast and gastroesophageal cancers; Adagrasib for KRAS-G12C-mutated solid tumors like NSCLC, colorectal, and pancreatic cancers; and Bemarituzumab for gastric and gastroesophageal junction cancers. Further pipeline candidates encompass CLN-081 for EGFR exon 20 insertion NSCLC; Elzovantinib, an orally available multi-targeted kinase inhibitor; Tebotelimab, a tetravalent IgG4 monoclonal antibody; Retifanlimab, designed to block PD-1 interactions with its ligands; ZL-2309, an orally active and selective CDC7 kinase inhibitor; ZL-1201, a humanized IgG4 monoclonal antibody; Efgartigimod, aimed at reducing pathogenic immunoglobulin G antibodies; ZL-1102, a human nanobody against interleukin-17A; KarXT for psychiatric and neurological conditions; ZL-2313 and ZL-2314, both investigational EGFR inhibitors targeting specific mutations; and Sulbactam/durlobactam, intended for serious infections caused by Acinetobacter. Established in 2013, Zai Lab Limited maintains its corporate headquarters in Shanghai, China.