Rebif news blow against Merck KGaA

Merck KgaA has suffered a triple whammy in the last couple of days: First, Citibank and WestLB downgraded the company's stock. Then came news of a study showing that its MS drug Rebif performs no better than Teva Pharmaceuticals' Copaxone.

Meanwhile, some Israeli scientists have ID'd the genes that predict a positive response to Copaxone, opening the way for personalized treatment using the drug. Does that make it a quadruple whammy?

- see this Weizmann Institute of Science report on the Copaxone genes
- read about the market's response to Merck KGaA news

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Read more on: Merck KGaA | Teva