I'm hoping that it is purely by chance, however, the participant...

I'm hoping that it is purely by chance, however, the participant dropout rate for the PARA _OA_008 is a little concerning, especially as we are not privy to the reasons for it occurring.
* 2 placebo doses per week - 22 enrolled and 0 dropped out
* 1 iPPS and 1 placebo per week - 20 enrolled and 3 dropped out
* 2 iPPS doses per week - 19 enrolled and 4 dropped out.

I'd love to know why the dropout rate was highest for the recipients that received the greatest amount of iPPS in the trial and lowest for the placebo recipients. It was a double-blind study however due to being a fairly small recipient number (n) one should not draw too many negative conclusions, but something irks me about it.