Smurph, the only way china (or anyone) could appropriate Leronlimab is not through philippines. Don't want to give anyone any ideas, and I'm sure they are (or will become) aware of this, but they're incapable of 'reverse engineering's it, also. China can generally only steal concepts. This is a molecule, that's dependent on a means of production that effectively prevents reverse engineering.
Totally understand the origin of your concern; totally unnecessary, as far as the Philippines goes. Or anywhere that approves LLmab.