caserini study was bullshit, phase 3 trials proved that p3074 was the same as taking oral finasteride in the long term
How was it bullshit? It all depends on the conclusion you draw from it. I think it's pretty significant that it's possible to achieve a 50% reduction in scalp dht paired with a 25% reduction in serum dht. It's just that arriving at that point after only a week is not desirable, as it'll obviously continue to drop further after that. But the fact that such a ratio is possible is interesting in itself.
The marketing pitch that topical finasteride only reduces 25% serum dht is obviously nonsense, but the results of the study open some interesting possibilities. They should have done follow-up studies at lower dosages for longer periods of time.