The committee consists of medical professionals with similar backgrounds. Their vote, imo, is significant because in order to get the designation, they get an up close view of all the data and immediate answers to any question that they may have.
"The sponsor has provided preliminary clinical data that demonstrate that treatment improved survival in recurrent platinum-resistant patients. An indirect comparison was conducted to show that the survival benefit compared favourably with the survival observed with authorised products. The Committee considered that this constitutes a clinically relevant advantage.
A positive opinion for ofranergene obadenovec, for treatment of ovarian cancer, was adopted by consensus."