well that link says "Lead clinical candidate is entering FDA...

well that link says "Lead clinical candidate is entering FDA Phase 3 development (HPV, est. 2017)"

of course any trial would need to be registered with the FDA and would be shown here:

https://clinicaltrials.gov/ct2/results?cond=&term=santalis OR viroxis&cntry1=&state1=&recrs=

There is no phase 3 trial shown there so it hasn't started.

Indeed that presentation specifically states that they were awaiting the End Of Phase 2 meeting:



Where did you get the idea the trial had started?