In the US market (which is what I’m concerned about as a MNTA long), Tysabri’s growth rate has been anemic at best. The most recent four quarters of US sales of Tysabri and Copaxone are as follows:
Thus, the cumulative growth in US Tysabri sales over the past three quarters has been 2.5%, which works out to an annualized growth rate of only 3-4%.
*Teva reports 2Q09 results on Jul 29. Much to srsmgja’s chagrin, it’s a pretty good bet that Copaxone will continue cleaning Tysabri’s clock in the US market.