I cannot make sense of your statement. It is 100% disinformation. Anyone can verify that this is untrue.
Peer review does not work the way you suggest and nothing was hidden or withheld—it’s all there of course—go to the JAMA website or ask the editorial staff. PFS, pseudo, endpoints, OS, crossover, original protocol, were all included in the peer review. Furthermore, Liau and Ashkan are on video discussing all these aspects of the study over the years. Look at the documents attached to the manuscript at the JAMA site. It is all documented on the JAMA network website.
If you want to learn about the original trial protocol all those years ago, consult JAMA and the peer review documents that JAMA has published and made available worldwide. The links are included on the DCVax-L P3 peer review page at the JAMA Oncology website linked below.
Not only has this all been publicized and documented for years, it is included in the PDF attached to the JAMA manuscript and Liau spoke about in the JAMA interview which is also pubic. Then, on December 5th, Liau participated in a public webinar and she talked about it again which was about 500th time that she did so publicly while being recorded.
I cannot make any sense of your claims—verifiably false.