Part two of two parts; the first ran Thursday, June 10.
There’s still a great deal we don’t yet understand about aducanumab (brand name Aduhelm) or its longer-term effects. If early-stage Alzheimer’s disease is diagnosed in time for someone to begin taking the drug, are the potential adverse effects cumulative? Could long-term toxicity build up over time? How long might the drug stave off development of the plaque, and how long might it slow down the process of cognitive decline, if at all, and how will clinicians assess its benefit in patients? Continue reading
National Institute on Aging/National Institutes of HealthBeta-amyloid plaques and tau in the brain.
Part one of two parts; the second runs tomorrow, Friday, June 11.
You might think that the first new drug to treat Alzheimer’s in 18 years — and the first to treat underlying disease and not just symptoms — would be heralded by patients, families, and medical professionals alike. After all, the FDA’s approval on Monday of aducanumab (brand name Aduhelm) sounds like a tremendous breakthrough for the estimated 6 million Americans, and 50 million people globally, who suffer from the disease.
However, because of the supporting clinical data on its effectiveness, the drug has been controversial from the start. Drug maker Biogen actually halted its parallel Phase 3 studies, ENGAGE and EMERGE, because they failed to meet their primary endpoints. Those original endpoints were a change in the Clinical Dementia Rating-Sum of Boxes (CDR-SB), which is similar to a composite endpoint because it assesses improvement in multiple different domains. Continue reading