PBB-8-CH is a Chaperone, to protect the patient’s own endogenous Factor VIII for mild to moderate haemophiliacs (together about 60% of the haemophilia A population). This may provide affordable prophylaxis for these sections of the haemophiliac community who currently have to rely of treatment on demand (i.e. Accident & Emergency).

A development programme is planned to run in parallel with the PBB-8-SQ programme.