After the anti-PD-1/L1 antibody and cell therapy rush, antibody-drug conjugates are quickly gaining attention in China as new technologies and deal-making activity heats up, but one first mover warns of potential over-crowding.

Seattle biotech raised $36m series A in March, now obtains glaucoma and AMD drug candidates along with delivery technology. Alligator, Orion partner on bispecific antibodies for cancer.

Plus deals involving Y-Biologics/Pierre Fabre, Contera/Abzu, Chugai/Alebund, Catalyst/DyDo, Spergogenix/Abbiska, Nippon Gene/ERS Genomics, Simcere/Vivoryon, Dr. Reddy’s/Journey Medical and Innovent/Synaffix.

Celltrion and iProgen will co-develop ADC candidates, Miracogen and Synaffix sign a technology license after a successful research collaboration, and WuXi will provide clinical trial material to NBE Therapeutics.