Biotech Values

[winchem21]

Here is a comparison of mean results from middle four 207 patients (dropping the highest and lowest) vs Mexico trials in terms of changes in letters of visual acuity using data from the posted slides.

Date  Mex  40mgs  40mgot  10mg 
 Wk3	6.5	6.9	4.3	0.8 
 EOT	8.8	7.8	7.1	2.7 
 2Mon	6.9	2.8	2.9   -1.9  
 4Mon  5.7

40mg end of treatment 207 results appear to be comparable to Mexico trials. There clearly appears to be a dropoff in VA one month after treatment that was not seen during the Phase I/II after both 1 and 3 months in Mexico. The 10 mg results are poorer at all stages.

These preliminary results point to the possible need for weekly doses at 40 mg levels to maintain effective treatment.

wc21