The Food and Drug Administration has failed to ensure that drugs given prized rare-disease status meet the intent of a 35-year-old law, federal officials revealed in a report Friday.
Federal officials call out FDA over lapses in rare-disease drug approval
The Government Accountability Office, which spent more than a year investigating the FDA's orphan drug program, said "challenges continue" in the program that was created to spur development of drugs for diseases afflicting fewer than 200,000 patients.
This investigation examines the booming orphan drug business and how drugmakers have rushed into the marketplace with hundreds of drugs for rare diseases, helping patients while landing lucrative federal incentives and monopoly control for every drug that gets approved.
The investigation began after a request from three high-profile Republican senators last year, in the wake of a KHN investigation. KHN found that the program was being manipulated by drugmakers to maximize profits and to protect niche markets for medicines being taken by millions.
The GAO uncovered inconsistent and often incomplete reviews early in the process of designating medicines as orphan drugs and recommended "executive action" to fix the system. In some cases, FDA reviewers failed to show they had checked how many patients could be treated by a drug being considered for orphan drug status; instead, they appeared to trust what drugmakers told them.
In response to GAO's probe, the FDA issued a statement saying it agreed with the report recommendations regarding documentation and that the agency is "streamlining our processes." The agency declined requests for interviews. In a comment included with the report, Matthew Bassett, assistant secretary for legislation at the Department of Health and Human Services, said HHS agreed with GAO's recommendations.
John Dicken, director of the GAO's health care team, said the focus of the report is "ensuring that the intent of the law is being met."
The FDA's rare-disease program began after Congress overwhelmingly passed the 1983 Orphan Drug Act to motivate pharmaceutical companies to develop drugs for people who lacked treatments for their conditions. Rare diseases had been ignored by drugmakers because treatments for them weren't expected to be profitable. The law provides fee waivers, tax incentives for research and seven years of marketing exclusivity for any drug the FDA approves as an "orphan."
The incentives, though, have proven to be more powerful and highly coveted than expected, said Avik Roy, president of the Foundation for Research on Equal Opportunity, a conservative think tank.
Many people are "starting to wonder whether or not the Orphan Drug Act over-corrected for the problem," Roy said, noting that a third of all pharmaceutical spending in the U.S. will be on so-called rare-disease medicines in 2020.
GAO analysts examined FDA records for 148 applications submitted by drugmakers for orphan drug approval in late 2017. FDA's reviewers are supposed to apply two specific criteria -- how many patients would be served and whether there is scientific evidence the drug will treat their disease.
In nearly 60 percent of the cases, the FDA reviewers did not capture regulatory history information, including "adverse actions" from other regulatory agencies. The FDA uses experienced reviewers, Dicken noted, who may already know the history of certain submitted drugs and not see the need to document it.
And 15 percent of the time FDA reviewers failed to independently verify patient estimates provided by the drugmaker.
Of the 148 records the GAO reviewed, 26 applications from manufacturers were granted orphan status even though the initial FDA staff review was missing information.
"It is tempting to think that perhaps those approvals were sort of granted routinely without sufficient scrutiny," said Bernard Munos, senior fellow at FasterCures and the Milken Institute.
By contrast, early Orphan Drug Act advocate Abbey Meyers said she was not concerned about the lack of population estimates because many rare diseases lack population studies that show how common a disease is.
Rather, Meyers said, she's "disappointed that there is no government-funded agency that is willing to finance" such research.
The GAO investigation began after Scott Gottlieb, who took over as FDA commissioner in May 2017, announced a "modernization" of the rare-disease program.
Critics have long complained that drugmakers game the FDA's approval process for orphan drugs. In January 2017, the KHN investigation, which was co-published and aired by NPR, revealed that many orphan drugs aren't entirely new and don't always start as treatments for rare diseases.
The GAO report, while not analyzing the same years, found that 38.5 percent of orphan drug approvals from 2008 to 2017 were for drugs that had been previously approved either for mass-market or rare-disease use. About 71 percent of the drugs given orphan status were intended to treat diseases affecting fewer than 100,000 people.
KHN's investigation found that popular mass-market drugs such as cholesterol blockbuster Crestor, Abilify for psychiatric conditions, cancer drug Herceptin and rheumatoid arthritis drug Humira, the best-selling medicine in the world, all won orphan approval yet were already on the market to treat common conditions.
In addition, more than 80 orphan drugs won FDA approval for more than one rare disease -- or several -- each one with its own bundle of rich incentives.