Their 2002-2012 prediction.
"Despite the launch of several novel drugs, interferon beta therapies will remain the top-selling drug class in the MS market throughout the forecast period. Sales of interferon beta therapies in 2002 represented 77% of total sales. We forecast that this share will have decreased to 60% in 2012 as monoclonal antibodies and other emerging agents garner 17% of the total value of the MS market."
that 17% of other emerging agents would include the 50% oral now.
"Monoclonal antibodies will not affect the patient share of current agents because these therapies will most likely be used concomitantly with current drugs."
Tysabri as combination therapy. Uh...
"Another emerging agent, a CC chemokine receptor antagonist, will also be used concomitantly with current drugs, but we expect that the emerging altered peptide ligands will be used as monotherapies. However, use of these altered peptide ligands will only be appropriate in a very small subgroup of patients with chronic progressive MS and will therefore not significantly increase market size."
http://www.decisionresources.com/stelle ... 05530.hcsp