Following vaccines for COVID-19 are for trial use in patients:

Moderna's New COVID-19 Vaccine Ready for Human Trials

https://www.modernatx.com/modernas-work-potential-vaccine-against-covid-19

Rapid development of a synthetic DNA vaccine for COVID-19.

https://www.researchsquare.com/article/rs-16261/v1

I opine that insilico clinical trial is not a viable option for COVID 19. It has to go through all pre-clinical and clinical phases so that its efficacy and safety can be measured accurately as we can not compromised with human safety.

Principles and considerations for adding a vaccine to a national immunization programme

From decision to implementation and monitoring

Authors: World Health Organization

Thank you for the valuable inputs.