The phase 3 clinical trial budget example for small molecule drugs discussed in the attached linked article adds up to $12.9 million.
However, clinical trial costs are highly dependent on a long list of factors that can vary substantially, particularly when biologics are trialed in combination with other biological drugs. However as a general rule of thumb for small molecule drugs , pivotal Phase 3 studies cost a median of $41,117 per patient
https://www.linkedin.com/pulse/how-much-does-oncology-clinical-trial-cost-patricio-ledesma/