[billythemaniam]

Drug trials are already double-blind and highly regulated, particularly stage 3, so further controlling for the corruption you are suggesting doesn't seem necessary. If there is evidence (hard evidence not hearsay or conspiracy theories) of that sort of corruption, then I think what you suggest is a good improvement.

[londons_explore]

When lots of money is on the line, all kinds of people involved find ways to subvert the blinding process.

[billythemaniam]

Without hard evidence, that's a great example of a conspiracy theory.