Biogen’s BAN2401 fails to achieve results

 Biogen’s BAN2401 did not meet primary endpoint in Phase II clinical study

 Biogen says BAN2401 did not meet primary endpoint. Stockwinners.com
Biogen says BAN2401 did not meet primary endpoint

Eisai and Biogen (BIIB) announced that an Independent Data Monitoring Committee has determined that BAN2401, an anti-amyloid beta protofibril antibody, did not meet the criteria for success based on a Bayesian analysis at 12 months as the primary endpoint in an 856-patient Phase II clinical study.

Following the predefined study protocol, the blinded study will continue and a comprehensive final analysis will be conducted at 18 months seeking to demonstrate clinically significant results.

The results of the final analysis are expected to be obtained during the second half of 2018.

Study 201 is a placebo-controlled, double-blind, parallel-group, randomized study in patients with prodromal or mild Alzheimer’s disease and with positive biomarkers for brain amyloid pathology.

The study design included 16 interim analyses that assessed potential for futility or stopping for safety. Neither of these conditions was met and the study continues to a full analysis at 18 months.

The efficacy of five dose groups of BAN2401 was evaluated at 12 months based on Eisai’s in-house developed novel endpoint Alzheimer’s disease Composite Score.

According to the Bayesian analysis at 12 months, success was judged as an 80% or higher probability of achieving a Clinically Significant Difference. In the final analysis at 18 months, a comprehensive evaluation which includes assessing changes from baseline in the clinical evaluation indicators ADCOMS and Clinical Dementia Rating Sum of Boxes, as well as changes in biomarkers such as brain amyloid levels as measured by amyloid PET and total hippocampal volume using vMRI, will be assessed. BAN2401 is a humanized monoclonal antibody for Alzheimer’s disease that is the result of a strategic research alliance between Eisai and BioArctic.

Since March 2014, Eisai and Biogen have been jointly developing BAN2401.

BIIB closed at $333.47. It last traded at $319.94.


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