News from the web:

Pfizer and Medivation ended their collaboration on the experimental drug Dimebon for Alzheimer’s disease after the medicine failed in another late-stage clinical trial.

Dimebon was one of two drugs Pfizer had in its late-stage pipeline to treat the neurodegenerative disease. The other is bapineuzumab, which Pfizer is developing with Johnson & Johnson. The treatments have different mechanisms of action.

Dimebon didn’t show statistically significant results in a study that evaluated the compound when added to a standard treatment in patients with mild to moderate forms of the disease, the companies said Tuesday. The companies will end development of the drug for all uses, and will stop a current study.

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