Advocacy groups for patients with neurologic disorders have become a common feature in the landscape of drug and device development and federal research funding allocation.
On Capitol Hill, advocates have racked up some impressive legislative wins that aim to set a federal agenda for developing new medications.
At the Food and Drug Administration (FDA), advocacy groups played a significant role in several recent high-profile and controversial approvals for drugs for Alzheimer’s disease, Duchenne muscular dystrophy (DMD), and amyotrophic lateral sclerosis (ALS).
Such gains suggest these groups are growing in power. But with these wins come questions about whether large advocacy organizations — some of which receive significant industry funding — wield too much influence.
“You need to think very carefully about how you open these processes up to greater patient involvement,” Matthew S. McCoy, PhD, assistant professor of medical ethics and health policy at the University of Pennsylvania, Philadelphia, told this news organization. It’s important not to “end up with a situation where it’s the best-connected, the most well-resourced, the most-savvy patient organizations that are able to exercise outsize influence.”
Just because a group has deep pockets does not mean that its priorities align with the disease burden. And not every patient population is represented by a professionalized patient advocacy organization, Dr. McCoy noted. “There is the potential for the rich to get richer.”
A Seat at the Table
Long ago, the FDA and the National Institutes of Health (NIH) began giving patients a seat at the table, in part because of the path blazed by AIDS activists in the late 1980s and early 1990s, said Dr. McCoy.
Patient advocacy is often visible during FDA advisory committee meetings. The agency usually allows an hour, sometimes more, for members of the public to express support or concerns about the product being reviewed. Patients and caregivers — often aided by advocacy organizations — also submit hundreds, sometimes thousands, of letters before a product review.
The Alzheimer’s Association spent years advocating for approval of the anti-amyloid agent aducanumab (Aduhelm, Biogen/Eisai). In 2020, the organization urged patients and caregivers to submit written and oral testimony to the FDA advisory panel that was reviewing the drug. Despite patients’ pleas, the panel ultimately declined to support the drug’s approval, citing safety concerns and limited evidence of efficacy.
As controversy swirled around the medication — which had the potential for life-threatening brain swelling — advocates continued to apply pressure. Going against the expert panel’s recommendation, in June 2021, the FDA granted accelerated approval prompting three of the panelists to resign in protest.
Aducanumab’s initial price — $56,000 a year — was seen as a major threat to the viability of Medicare. Still, the Alzheimer’s Association stood behind the decision to approve the drug. But by early 2024, Biogen/Eisai said they would stop selling aducanumab, citing other priorities.
Once again patient advocates showed up in March 2022 when the FDA advisers were reviewing Amylyx Pharmaceuticals’ ALS drug Relyvrio (sodium phenylbutyrate and taurursodiol). Trials had showed limited efficacy, but patients testified they would accept greater risk for a chance to be treated with the drug. The committee ultimately voted against approval; 6 months later, the FDA approved Relyvrio anyway.
In April 2024, Amylyx removed Relyvrio from the market following phase 3 trial results that showed no difference between the treatment and placebo.
The drug manufacturer Sarepta Therapeutics, which develops treatments for genetic conditions such as DMD, has a history of working with — and funding — patient advocacy groups. The company encourages nonprofits to apply for grants or sponsorship on its website. At a 2016 advisory committee, when Sarepta was seeking approval of its first DMD therapy eteplirsen (Exondys 51), 52 speakers, most from patient advocacy groups, pleaded for the drug’s approval. When the panel voted no, Sarepta mobilized families to pressure the agency. Exondys was eventually approved.
In June, Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research, unilaterally gave final expanded approval to Sarepta Therapeutics’ gene therapy Elevidys for DMD. Dr. Marks overrode his own FDA reviewers, who said the product lacked substantial evidence of efficacy. He acknowledged the drug had not met its primary endpoint but said he found secondary and exploratory endpoints “compelling” and cited an unmet medical need.
In an opinion piece in The Washington Post, Aaron Kesselheim, MD, JD, MPH, the director of the Program on Regulation, Therapeutics, and Law at Brigham and Women’s Hospital, Boston, Massachusetts, and a former member of the FDA’s Peripheral and Central Nervous System Drugs Advisory Committee, questioned the approval stating that it undermined both public trust and manufacturers’ incentives to do the hard work of proving effectiveness.