DXB Chart, page-587

Mate the company can't be certain of the outcome. They don't know if the trial will succeed or crash. They might as well lock in the upfront payments now rather than wait, as it ensures they remain solvent if the worse was to happen. They're not missing out on a better deal as the contingent payments ensure that if all goes to plan, they will get a fantastic outcome.

I think it is unlikely to be a failure, especially considering P2 results and the recent partnership as well which helped validate what we have. But there is very little downside to getting a deal now as opposed to waiting till after results. However there's lot of upside to minimising risk by securing the cash now