Rallybio Announces Positive Preliminary Results for RLYB212, an anti-HPA-1a Monoclonal Antibody for the Prevention of Fetal and Neonatal Alloimmune Thrombocytopenia
NEW HAVEN, Conn.--(BUSINESS WIRE)--Rallybio Corporation (Nasdaq: RLYB) today announced positive preliminary results from its ongoing Phase 1b proof-of-concept study of RLYB212, an anti-HPA-1a monoclonal antibody for the prevention of fetal and neonatal alloimmune thrombocytopenia (FNAIT). These data demonstrate that one week after a single subcutaneous dose, RLYB212 was able to eliminate transfused HPA-1a positive platelets rapidly compared to placebo in a challenge model of a catastrophic fetal maternal hemorrhage. Additional pharmacokinetic data suggests the opportunity for less frequent dosing.