Thursday, February 1, 2024

Personal Blog #35 … Biogen is Ending Sale of Aduhelm … 2/1/24

Yesterday, 1/31/24, Biogen announced that it will stop selling Aduhelm, its Alzheimer’s disease (AD) medication, by the end of this year.  When initial approval was given by the Food and Drug Administration (FDA) to market this medication in 2021, FDA required Biogen to conduct additional studies to prove the efficacy of this new drug.  Biogen announced yesterday that it is ending its study needed to obtain full approval from the FDA. 

Readers may remember reading my Personal Blog #23, posted on this site on 6/11/21 … “Letter to Acting FDA Commissioner re Aduhelm.”  In the first paragraph of that PB #23 column, I wrote: “On 6/7/21, the FDA approved the drug Aduhelm, Biogen’s aducanumab medication, an intravenous infusion to be administered monthly for people with Alzheimer’s disease.  Despite not one member of the FDA’s Advisory panel voting to approve this med, FDA approved its use anyway.  FDA determined that since Aduhelm helped clear some amyloid protein from the brain, it may be “expected to help slow dementia.”  However, Biogen’s own data do not support such a claim, and readers can read my Personal Blogs #11 and #12 to learn more about results of clinical trials with this drug.” 

I also wrote the following: “For many patients and caregivers, the high costs of AD medications present an economic hardship. Money spent on (ineffective) AD medications is money that might otherwise be spent on day care programs, companions, home health aides, or other services that would actually improve the quality of their lives.”

“I witnessed AD spouse caregivers having to spend life savings on AD meds.  Some had to sell their homes when placing spouses in assisted living or to cover costs of home health care aides.  Now even more will have to do so because of money needlessly spent on this latest bottle of hope you have approved.  Based upon data I have seen ... a difference of 0.39 on an 18 point scale of cognitive and functional ability ... I can understand why not one member of your 11 member Advisory panel of experts that evaluated the data for FDA voted for approval.”

“I am SO sorry that FDA has approved yet another costly "bottle of hope" that will now financially ruin the lives of more AD spouse survivors with virtually zero benefit to their loved ones.  This is just not fair to people with AD, and not fair to their eventually surviving spouses.”

I also shared an email correspondence I had with Dr. Janet Woodcock, then acting FDA Commissioner.  In one email I had written, “My gripe is that there is no clear evidence that this med will actually slow cognitive decline in a meaningful way.  Unless and until Biogen can produce clear evidence that their medication does slow cognitive decline to a significant extent, it remains only an expensive bottle of hope.”

I also quoted one of several members of the FDA Advisory panel who resigned from the panel in protest, Dr. Aaron Kesselheim, a professor of medicine at Harvard Medical School.  Kesselheim said that FDA’s decision on Biogen “was probably the worst drug approval decision in recent U.S. history … based on the debatable premise that the drug’s effect on brain amyloid was likely to help patients with Alzheimer’s disease.”

In the last paragraph of PB#23, I noted my final comment to acting FDA Commissioner Woodcock re Aduhelm: “I want so much to see a new medication that will truly slow down the progression of the disease to allow a longer period of quality of life.  I want so much to see development of a new medication that will successfully treat if not cure AD.  (But) When an Advisory FDA panel has 11 experts and not even one of those experts votes to approve this medication, one has to wonder how something like this could happen.”

According to yesterday’s report by The Associated Press (AP), about 2,500 people worldwide are currently taking Aduhelm.  The AP report further stated, “Initially priced at $56,000 a year, analysts predicted it would quickly become a blockbuster that would generate billions for Biogen.  Medicare raised the premiums it charges for its coverage partially because of an expected influx of Aduhelm claims.  But doctors were hesitant to prescribe the IV drug, given weak evidence that it meaningfully improved Alzheimer’s patients lives.”

Although it comes as no surprise to me, I am deeply saddened to see yet another much hyped potential AD medication be declared a failure.  I have expressed my concerns about 2 other new AD meds targeting amyloid proteins (plaques) in the brain in Personal Blogs #28, #31 and #32.  These columns expressed my strong views on Lecanemab (now marketed as Leqembi), and Donanemab, a med that the FDA is expected to consider for approval within the next month or two. 

Given Biogen’s failure with Aduhelm, I can only reiterate what I wrote in last month’s PB #34.  Until science discovers exactly what causes AD … and as of today there is no definitive proof that AD is caused by the build-up of amyloid proteins in the brain … it will be extremely difficult if not impossible to develop a medication that can prevent AD or treat AD effectively.