The hope of course is that the 200mg dosing was not the peak of Prurisol efficacy, but just the beginning of a trend that improves with higher dosing. We'll find out within the next 5 or so weeks.
These graphs should include a disclaimer: warning- these percentages are based on very small sample size, and may not be reliably reproduced in a larger study.
But everyone is already well aware of this, one supposes
Not reading this warning might lead to disappointment when the results for P2b come out.
Of course it is possible the results for P2b will be even better than this- so it goes with too small sample sizes