Due to launch in the second half of this year, Rallybio Inc.’s phase I/II study testing RLYB-211 for prevention of fetal and neonatal alloimmune thrombocytopenia (FNAIT) will begin with experiments in men, said Steve Uden, one of the company’s three founders. “The good news is, we can confirm the safety and the pharmacology of this concept in male volunteers before having to start a clinical trial in pregnant mothers,” he told BioWorld.