NorthWest Biotherapeutics Inc (NWBO)

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Or you could simply look at a company who worked with the FDA on their external trial design for their GBM P3 in 2020.

After consultation with the FDA, the company can conduct a hybrid registration trial that allows for the use of matched external controls for two-thirds of control arm

And from your own references (did you read them?):

9 that include (among other factors) a valid comparison to a control.

Numerous doctors have already come out showing why this is not the case with the P3 and the ECA. A non-starter unless the FDA is stacked with NWBO shills.