New formulations derived from Alza's technology could increase its efficacy and help control side effects.

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The FDA may be learning not to sit on data too long, for fear of losing control of the public debate about the safety and efficacy of particular drugs.

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Menasche's initial trial of the method on ten patients showed tantalizing hints of efficacy, but because there was no control group, it is impossible to tell whether the improvements seen were due to the cell transplant or to the bypass surgery the patients also received.

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