Biogen’s trials for the Alzheimer’s disease drug excluded a large portion of the target population



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A New analysis reveals that clinical trials conducted by Biogen (BIIB) for its controversial treatment for Alzheimer’s disease would have excluded up to 92% of Medicare beneficiaries – a key part of the targeted patient population – based on their age or their existing medical conditions.

In summary, a total of 92% of patients with Alzheimer’s disease and related disorders, 91% with Alzheimer’s disease in particular, and 85.5% of patients with mild cognitive impairment responded to at least one of the study exclusion criteria, based on review published in JAMA. . The most common criteria were heart disease, conditions associated with blood clots, chronic kidney disease, and age 85 or older. Most people actually met more than two of the criteria used to exclude participants.

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