Tag Archives: FDA regulation

Biden yet to nominate new FDA chief even as delta surges

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Justine Coleman and Alex Gangitano, The Hill, August 8, 2021

President Biden has yet to nominate a permanent head of the Food and Drug Administration (FDA) at a time when the government is navigating a surge in COVID-19 cases from the delta variant.

It’s unclear why the post remains vacant more than six months into Biden’s presidency, but some experts suggest politics may be getting in the way.

Some Democratic senators are pushing back on the prospects of acting Commissioner Janet Woodcock being named to the permanent role, but health care experts are warning that the administration needs to fill the position immediately.

[…]

Biden selected Woodcock, a longtime FDA regulator, to serve as the acting commissioner in January but has since received pushback, including from senators and anti-opioid advocates on that move.

Several Democratic senators have voiced opposition to Woodcock, citing her time at the FDA when opioid painkillers were approved, later contributing to an epidemic that has left many Americans dead.

“I continue to have concerns about Dr. Woodcock as a potential permanent FDA Commissioner, especially given the role she played in approving and labeling opioid-based medications,” Sen. Maggie Hassan (D-N.H.), a member of the Senate Health, Education, Labor and Pensions Committee, said in a statement. “That’s why I’ve called on President Biden to put forward an FDA commissioner who will act independently from the industry that he or she regulates.”

Sen. Joe Manchin (D-W.Va.), a centrist, has also called on the administration to prioritize nominating a different commissioner, citing concerns about the opioid epidemic and the FDA’s controversial approval of the Alzheimer’s drug Aduhelm.

“Dr. Woodcock is not the right person to lead the FDA,” he wrote in a June letter to Biden.

Two months earlier, Sen. Catherine Cortez Masto (D-Nev.) vowed to oppose a potential Woodcock nomination.

Her prospects have not improved over the summer.

In a statement, Sen. Ed Markey (D-Mass.) called for a “permanent, qualified, trusted” commissioner to address the pandemic and opioid epidemic. Without specifically mentioning Woodcock, he said, “The FDA needs a leader who will learn from the agency’s past mistakes to ensure it never makes them again.”

Other names floated for commissioner include Zeke Emanuel, former health policy adviser in the Obama administration and an architect of the 2010 Affordable Care Act; Michelle McMurry-Heath, CEO of the Biotechnology Innovation Organization; Katherine Luzuriaga, director of the University of Massachusetts Center for Clinical and Translational Science; and Florence Houn, who worked at the FDA during multiple administrations.

[….]

Some experts emphasized that it’s more important to get the right nominee than to rush one through the Senate.

“It’s taken the administration rather a long time to make a decision,” said Diana Zuckerman, president of the National Center for Health Research. “It makes it even more important that they make the right decision, not just be pushed into making a decision in the next X number of weeks or months.”

Zuckerman called for the Biden administration to prioritize choosing a nominee with a “very strong public health perspective,” noting that Woodcock has become an “untenable” candidate amid the opposition and “controversial” decisions at the agency during her tenure, which dates back to 1986.

[….]

To read the entire article, click here.

Beleaguered FDA in talks for drug-company funding

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Eleanor Laise, Marketwatch: July 13, 2021

Amid a firestorm over its approval of a new Alzheimer’s treatment, the Food and Drug Administration is holding closed-door meetings with companies it regulates — talks that critics say allow drug and device makers to exert outsize influence over the agency’s operations, threatening to erode public trust in the agency at a critical moment.

The talks focus on “user fees” that pharmaceutical and medical-device companies pay to the FDA annually and when applying for approval of new products. The FDA in recent years has become increasingly reliant on such payments, which funded nearly half of the agency’s total spending in fiscal year 2020. In exchange for the fees, the FDA agrees to certain deadlines for reviewing new-product applications, the type and frequency of meetings with companies submitting applications, and other commitments. The medical-product user-fee agreements are generally renegotiated every five years — a process that’s happening now, in advance of the current agreements’ expiration next year — and submitted to Congress for authorization.

Although the FDA is required by law to consult with patient and consumer advocacy groups on the discussions and make minutes of its industry meetings public, the meat of the talks often remains hidden, observers say. Since September of last year, the FDA has held more than 150 meetings with industry to discuss fee agreements for brand-name prescription drugs, generics, medical devices and biosimilars (products similar to branded biologic drugs), which together are expected to generate nearly $2 billion for the agency this fiscal year. Yet consumer advocates and other outside groups attempting to track the discussions say they remain in the dark about most of the details. FDA summaries of some recent meetings have been posted months after the fact or sum up a discussion in a single sentence. Medical-product safety experts say they’ve repeatedly asked for more access and details on the negotiations, to no avail.

“We simply can’t get a view into this process, and the lack of transparency is deliberate,” says Madris Kinard, a former public health analyst at the FDA and CEO of Device Events, which tracks medical-device adverse-event reports.

Details about the negotiations that have trickled out raise alarms among some medical-product safety experts, academic researchers and consumer advocates that the industry’s leverage in these talks ultimately puts patients at risk. User fees are speeding more products to market without a corresponding increase in resources to track the safety of those products, critics say. Yet in the current round of negotiations, FDA efforts to allocate more user fees toward monitoring the safety of medical products already on the market have met industry resistance.

[….]

The main idea behind the user-fee programs was to speed up FDA review of medical-product marketing applications — and they’ve delivered on that front. The median time to approval for standard new-drug applications was 10 months in fiscal 2018. In the years before user fees were first enacted, the median FDA application review time was nearly three years, according to a study by Kesselheim and colleagues at Harvard and Brigham and Women’s Hospital.

[….]

But user-fee deadlines can have serious side effects, some experts say. As the opioid crisis was exploding, “there was a question of ‘Why does the FDA keep approving the opioids?’ ” says a former FDA official. “One reason was that they had applications and had user-fee obligations to review the applications.” So long as an application met the standard requirements, “it would be approved,” he says. “That’s an example of the mindset” created by the deadlines.

Several studies have linked faster drug-approval timelines to safety issues. A 2014 study in Health Affairs found that drugs approved after user fees were enacted were more likely to get new black-box warnings or be withdrawn from the market than drugs approved in the pre-user-fee era. Other studies have found that, compared with drugs approved at other times, drugs given the green light shortly before their user-fee deadlines were more likely to have subsequent safety issues.

[….]

In the current round of medical-device user-fee negotiations, one of the FDA’s goals is to improve device safety, including through increased funding for surveillance of devices already on the market, the agency says. That proposal met stiff resistance from the industry, according to outside groups that have received FDA briefings on the talks. At an April 7 negotiation meeting, the industry expressed the view that fees “should be solely for the premarket review process,” according to a summary posted by FDA. Medical-device trade group AdvaMed didn’t respond to requests for comment.

At the start of the prescription-drug user-fee negotiations, the FDA also emphasized its hope of improving the Sentinel Initiative, a system for assessing the safety of approved medical products. But a related proposal advanced by the FDA during the negotiations was shot down by the industry, a December meeting summary notes.  

[….]

Revolving doors

“There’s not a lot of friction between the industry and the agency” in prescription-drug user-fee negotiations, says a former FDA official. “The industry knows it’s getting good value.”

A sign of the amicable relations: One FDA official leading the current round of prescription-drug user-fee negotiations left the agency in April of this year, according to her LinkedIn profile, to become vice president of science and regulatory affairs at BIO — one of the industry groups she’d just been negotiating with. The former FDA official, Khushboo Sharma, participated in a user-fee negotiation meeting with BIO and other industry representatives as recently as Feb. 12, according to meeting summaries posted by the agency. “That is obviously an outrageous situation and clearly undermines the integrity” of the process, says Diana Zuckerman, president of the National Center for Health Research, a nonprofit think tank.

Asked for comment, the FDA sent a link to its post-employment restrictions, which say in part that current employees who have begun seeking employment outside the federal government must immediately recuse from certain matters that affect “the discrete industry, economic sector, or other defined class of organizations in which the prospective employer operates.” BIO didn’t respond to a request for comment. Sharma says that she worked with FDA ethics officials “to ensure I was recusing myself from all appropriate activities. I started seeking post-employment opportunities after negotiations had concluded.”

When the agency’s position does conflict with an industry’s, the FDA “is not going to come out on top,” says Lisa McGiffert, a patient-safety advocate at the nonprofit Patient Safety Action Network. Given the industry’s track record of snagging many items on its wish list, some observers are concerned that the current round of negotiations could chip away at FDA standards for approving new drugs. One issue: the use of “real-world data,” which can come from insurance claims, medical records, disease registries and other sources beyond the bounds of clinical trials. In an August 2020 letter to the FDA about user-fee reauthorization, PhRMA said that real-world data and evidence “may, in some circumstances, be adequate on their own to satisfy the substantial evidence criteria for demonstrating effectiveness” of drugs.

[….]

To read the entire article, click here.

To Stay: Two More Cancer Indications With ‘Dangling Approvals’

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Kerry Dooley Young, Medscape News: April 29, 2021

Two more cancer indications that had been granted accelerated approval by the US Food and Drug Administration (FDA) are going to stay in place, at least for now. This was the verdict after the second day of a historic 3-day meeting (April 27–29) and follows a similar verdict from day one.

Federal advisers so far have supported the idea of maintaining conditional approvals of some cancer indications for a number of immunotherapy checkpoint inhibitors, despite poor results in studies that were meant to confirm the benefit of these medicines for certain patients.

On the second day (April 28) of the 3-day FDA meeting, the Oncologic Drugs Advisory Committee (ODAC) supported the views of pharmaceutical companies in two more cases of what top agency staff call “dangling accelerated approvals.”

ODAC voted 10-1 in favor of maintaining the indication for atezolizumab (Tecentriq) for the first-line treatment of cisplatin-ineligible patients with advanced/metastatic urothelial carcinoma, pending final overall survival results from the IMvigor130 trial.

ODAC also voted 5-3 that day in favor of maintaining accelerated approval for pembrolizumab (Keytruda) for first-line cisplatin- and carboplatin-ineligible patients with advanced/metastatic urothelial carcinoma.

The FDA often follows the advice of its panels, but it is not bound to do so. If the FDA were to decide to strip the indications in question from these PD-1 medicines, such decisions would not remove these drugs from the market. The three drugs have already been approved for a number of other cancer indications.

Off-label prescribing is not uncommon in oncology, but a loss of an approved indication would affect reimbursement for these medicines, Scot Ebbinghaus, MD, vice president of oncology clinical research at Merck & Co (the manufacturer of pembrolizumab), told ODAC members during a discussion.

[….]

Another participant at the meeting asked the panel and the FDA to consider the burden on patients in paying for medicines that have not yet been proven to be beneficial.

Diana Zuckerman, PhD, of the nonprofit National Center for Health Research, noted that the ODAC panel included physicians who see cancer patients.

“You’re used to trying different types of treatments in hopes that something will work,” she said. “Shouldn’t cancer patients be eligible for free treatment in clinical trials instead of paying for treatment that isn’t proven to work?”

[….]

To read the entire article, see https://www.medscape.com/viewarticle/950165

FDA Scrutinizes Pricey Cancer Drugs

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Politico Pulse: April 28, 2021

What should be done about expensive cancer drugs on the market that might not work? That could be the first thorny question to confront Woodcock, who is acting FDA commissioner while Biden weighs whether to nominate her for the full-time role.

The FDA is convening an expert panel this week to discuss whether the agency should revoke approved uses of three therapies that, despite positive signs from early research, failed to help patients with certain cancers live longer. All three medicines were approved under Woodcock’s tenure as drug chief and after increasingly speedy reviews.

Drug regulators “wanted to get these drugs to market as quickly as possible,” said Diana Zuckerman, a drug safety expert and president of the National Center for Health Research, who is presenting several times at this week’s meeting. “That was clearly their goal and they succeeded in doing it. But now there is a reckoning.”

What the companies say: Genentech, Merck and Bristol-Myers Squibb, the companies at the center of the debate, say their drugs still have value against the cancers in question, they just need to do more research. And Genentech on Tuesday applauded the advisory panel’s vote to keep its drug on the market for triple-negative breast cancer, one of the approvals in question.

To see the entire Politico Pulse, read https://www.politico.com/politicopulse/.

Janet Woodcock revolutionized the way the FDA reviews cancer drugs, inspiring her supporters and raising concerns for detractors

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Nicholas Florko, STAT News: March 1, 2021

In 2000, the Food and Drug Administration approved just three cancer drugs. Last year, even with the agency laser-focused on the coronavirus pandemic, much of its staff teleworking, the agency still approved a record-breaking 17 different cancer therapies — more than in any other category. That’s the legacy of FDA drug center chief Janet Woodcock. Woodcock, a 36-year veteran of the agency, is infamous for pushing the FDA to loosen its standards for drugs for rare conditions like Duchenne muscular dystrophy. But Woodcock’s most lasting impact at the FDA is her transformation of the way the agency approaches cancer drug approvals….. Now the nation’s top cancer doctors are emerging as Woodcock’s most vocal backers in her campaign to become President Biden’s FDA commissioner.

Critics say Woodcock’s cancer crusade has come at a cost. With the speed has come an erosion of the agency’s high standards and an increasing willingness to greenlight drugs that haven’t actually been proven to extend a patient’s life. … Their complaint mostly revolves around Woodcock’s willingness to accept studies testing drugs based on so-called surrogate endpoints, measures like the shrinkage of a tumor, rather testing a drug based on how long it keeps a patient alive. ….It’s a view that even some former FDA officials hold; one described Woodcock as pushing “flexibility even at the expense of science.”

[.…]

“For many cancers there is an improvement in survival, the question is which drugs are responsible for that and which ones aren’t, that’s the big unknown and that’s what’s so frustrating,” said Diana Zuckerman, the president of the National Center for Health Research. The end result of this confusion, critics argue, is that doctors and patients are left guessing whether a drug is truly effective, or worth the money.

 [….]

Read the full article here.

Who Will Be the Next F.D.A. Chief?

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Sheila Kaplan, New York Times: February 20, 2021

One month into his presidency, President Biden still has not named a candidate to head the Food and Drug Administration, a critical position at a time when new vaccines and coronavirus treatments are under the agency’s review.

The glaring vacancy lags behind the president’s selections of most other top government health posts, and has spurred a public lobbying campaign by supporters of the two apparent front-runners, Dr. Joshua Sharfstein, a former high-ranking F.D.A. official and Dr. Janet Woodcock, the acting commissioner.

It has also exposed rifts among Congressional lawmakers, within the public health and medical communities as well as the health and drug industries that depend on the F.D.A. for approval of their products. In particular, some public health officials have used the open position to debate the leadership qualifications needed to restore the agency’s morale and credibility after a year fighting both a pandemic and a president who often belittled the F.D.A.’s process for approving treatments and vaccines.

Administration officials say that Dr. Sharfstein and Dr. Woodcock have gone through at least partial vetting for the job. They attributed the delay to their focus on solving Covid vaccine shortages and distribution problems. They also noted that Xavier Becerra, the attorney general of California and who Mr. Biden has nominated for secretary of the Health and Human Services Department, faces Republican opposition that could jeopardize his confirmation.

[….]

Dr. Woodcock’s decades of service at the F.D.A. have made her more of a target for critics, and she has drawn particular fire over her agency roles during the opioid crisis.

Dr. Sharfstein, who held the No. 2 slot at the F.D.A. for nearly two years in the Obama administration, has extensive public health interests. At 51, he is a prolific writer, with more than 100 articles, editorials and journal papers published in the past few years on subjects ranging from training physicians to treating opioid addiction to reducing drug prices. He often criticized the Trump administration’s pandemic response, and called for the F.D.A. to “stand up for itself and for science, not politics.”

Early in the coronavirus outbreak, Dr. Sharfstein urged public health officials to focus on protecting racial and ethnic minorities, poor people and others who face social inequities. He has called for expanding housing to hold people with mild symptoms in quarantine; protecting tenants from eviction and offering incentives to food providers to deliver food to low-income neighborhoods for free or at a discount. He also proposed a federal coronavirus insurance program.

[….]

“I think Josh would be a good choice,” said David Nexon, a former executive at the Advanced Medical Technology Association, known as AdvaMed. “He’s a very smart guy, very committed to public health and he has a broad public health background, which would be an asset because of F.D.A.’s wide-ranging responsibilities.”

Dr. Woodcock, 72, also commands deep support, especially within the vast network of cancer-related patient advocacy groups, researchers and the drug companies that help finance them. But Dr. Woodcock, who has spent over 36 years working for the agency, has also generated much stiffer opposition in this round than Dr. Sharfstein.

“In the past, even when the F.D.A. review of the drug was scathing, quite often Janet Woodcock or another high level F.D.A. official would be at the meeting, clearly pushing the advisory committee to recommend approval,” said Diana Zuckerman, president of the National Center for Health Research, a think tank and advocacy group. “But by law, these advisory committees are supposed to make recommendations independent of any F.D.A. pressure.”

But the loudest objections to Dr. Woodcock focus on the F.D.A.’s role in the opioid epidemic during her two stints as chief of its drug division, from 1994 to 2004 and then again from 2007 until she moved to Operation Warp Speed last May. (Between those two postings, she held other roles at the agency.)

In January, a group of nonprofit advocacy groups wrote to Mr. Becerra, the health secretary nominee, and Norris Cochran, the acting health secretary, saying that Dr. Woodcock’s 25-year tenure as F.D.A.’s drug division chief should disqualify her from consideration for commissioner.

“Much of the responsibility for the opioid crisis clearly rests with industry,” the group wrote. “But the fact that opioid manufacturers for decades disseminated false claims about the risks and benefits of opioids points to a dereliction of duty” by Dr. Woodcock’s division.

The letter cited a 2017 presidential commission report on the opioid crisis, which found that it was caused in part by “inadequate oversight by the F.D.A.”

Dr. Woodcock’s role in the approval of new opioid products has also drawn strong opposition from some members of Congress, including Democratic Senators Maggie Hassan of New Hampshire and Edward J. Markey of Massachusetts. Senator Joe Manchin of West Virginia, has also been very critical of the F.D.A.’s handling of opioids under Dr. Woodcock.

“Multiple past F.D.A. commissioners have acknowledged that the F.D.A. made mistakes regarding the opioid crisis, yet the agency still has not fully reckoned with its past missteps,” Senator Hassan said in an email. “The F.D.A.’s decision-making processes for the approval and labeling of opioid drugs going back decades remain of serious concern, and it’s important that the next F.D.A. commissioner is someone who has demonstrated that they have learned from the F.D.A.’s past mistakes — not someone who has been involved in repeating them.”

The nonprofit advocacy groups’ letter prompted a defense of Dr. Woodcock orchestrated in large part by Ellen Sigal, co-founder of Friends of Cancer Research. Ms. Sigal is also chairwoman of the Reagan-Udall Foundation for the F.D.A., an influential organization created by Congress to help advance the agency’s mission and to speed development of new medical treatments.

Friends of Cancer Research receives much of its funding from drug companies. The 2019 top donor list for Friends of Cancer Research includes Amgen, AstraZeneca, Bristol-Myers Squibb, Eli Lilly Co., Genentech, Gilead, Merck, Pfizer and PhRMA, the pharmaceutical industry trade group. The Reagan-Udall Foundation receives funding directly from the F.D.A., but also lists drug industry donors, among them: Biogen, Johnson & Johnson, Teva and the Biotechnology Innovation Organization, known as BIO, which gave Dr. Woodcock an award in 2019 in conjunction with the Science History Institute.

[….]

Dr. Sharfstein’s supporters countered with a letter on Feb. 5, signed by 18 top academic physicians and researchers. “Dr. Sharfstein knows the F.D.A. and will ensure that its decision-making is scientifically beyond reproach, transparent and based on the principles of public health,” they wrote.

[….]

To read the entire article, click here: https://www.nytimes.com/2021/02/20/health/Covid-FDA-Biden.html

HEALTH CARE BRIEFING: FDA Vaccine Rules Challenged as Weak

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Brandon Lee and Alex Ruoff, Bloomberg Government: October 23, 2020

U.S. vaccine advisers questioned whether safety and efficacy standards set by Food and Drug Administration officials were high enough to warrant emergency authorization of a shot.

About two dozen outside advisers to the FDA with expertise in infectious diseases met yesterday to weigh in on agency standards that require a vaccine to work in at least 50% of people and for drugmakers to collect two months of safety data on at least half of clinical trial volunteers.

“They haven’t gone far enough” in terms of safety, said Hayley Altman-Gans, a panel member and pediatrics professor at Stanford University Medical Center.

Many panel members and outside researchers who commented during the hearing worried that if a vaccine is rushed out that later turns out to have safety problems or to be less effective than promised, it could backfire in a big way, undermining public confidence in Covid-19 vaccines for years to come.

Several panel members expressed concern that the two-month safety follow-up the FDA is calling for before a vaccine gets an emergency authorization is simply not enough. In addition to safety, it means that doctors won’t know whether a vaccine’s efficacy could fade after just a few months.

Diana Zuckerman of the National Center for Health Research told the committee the vaccine trials “have serious design flaws.”

The trials are too geared to preventing mild infections, and may not show whether they prevent severe infections and hospitalizations, she said. Longer follow up may be especially important because some of the first vaccines, including messenger RNA vaccines from Pfizer and Moderna, are based on new technologies that have never been used in an approved product. 

Read the full article here. 

FDA Panel To Lay Regulatory Groundwork For COVID-19 Vaccine

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Noel King and Sydney Lupkin, NPR: October 22, 2020

NOEL KING, HOST:

There are several COVID-19 vaccines in development. But before they are approved, they have to be safe. It’s the FDA’s job to ensure that. Today an FDA advisory panel is meeting for the first time about the coronavirus vaccine. It’ll be making recommendations based not on politically motivated timetables, but on data.

Sydney Lupkin covers the pharmaceutical industry for NPR. Good morning, Sydney.

SYDNEY LUPKIN, BYLINE: Good morning.

KING: So what is the deal with this FDA panel? Who’s on it? What are they going to be doing?

LUPKIN: Well, the FDA regularly turns to committees of outside advisers for guidance. Most often, these panels are asked to evaluate specific drugs or health products, and that helps the agency to decide whether to approve these products. Today’s meeting of the committee that looks at vaccines is going to be a little different.

KING: How?

LUPKIN: Like everything else in this pandemic, it’s a bit unusual. The big difference is that the committee isn’t going to be sifting through data for a specific coronavirus vaccine like it normally would. The meeting will be a broader discussion of how the agency should think about safety and effectiveness of these new kinds of vaccines, particularly safety. Dr. Paul Offit is a committee member who works at the Children’s Hospital of Philadelphia.

PAUL OFFIT: How robust should safety data be? How long, for example, after the first or second dose should patients be followed or participants be followed for any possible safety issue?

LUPKIN: They’ll be discussing FDA’s existing guidance to companies, which includes some of that information. They’ll also discuss how studies should continue after the first vaccine is given the green light. What do you do for patients who got a placebo once a vaccine is widely available? Of course, the FDA usually heeds the advice of these committees, but it doesn’t have to.

KING: So since there’s no vaccine to review, I would think that in ordinary times, we would not know about this meeting. It would not be news at all. It’s very clear that the FDA wants to make public that this is happening. Why do they want to do that?

LUPKIN: Well, I mean, it gives the American public a window into the process. There’s been so much discussion around whether the FDA will put politics ahead of science. So it’s important to see what’s going on. And the FDA has questions that it wants answers to. Here’s Dr. Miles Braun, a former FDA epidemiologist.

MILES BRAUN: There is a level of humility that the FDA is coming to its advisers with. And I think that’s a good thing. And if they find out they’ve missed some important things, they’ll address those.

LUPKIN: Committee members will hear presentations from scientists at the FDA, the Centers for Disease Control and Prevention and the Biomedical Advanced Research and Development Authority. The public will also have an opportunity to weigh in. Diana Zuckerman is the president of the National Center for Health Research, an advocacy group slated to speak.

DIANA ZUCKERMAN: We’ve seen the guidance of what they’re telling companies they’re supposed to be studying. Frankly, they’re not very stringent, so we are concerned about them.

LUPKIN: She hopes the meeting will delve into making sure the clinical trials are diverse, for example. She also questions whether the study approach the FDA suggested to manufacturers is long enough to assess vaccine safety.

[…]

Read or listen to the full article here. 

FDA Promises Strong Safety Standards for Covid-19 Vaccines as It Convenes Advisory Panel

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Thomas M. Burton, Wall Street Journal: October 23, 2020

SILVER SPRING, Md.—Food and Drug Administration officials gave fresh assurances Thursday that Covid-19 vaccines will undergo rigorous testing before being made widely available—a message they underscored in a meeting with outside medical experts aimed at bolstering the agency’s credibility.

“Only those vaccines that are demonstrated to be safe and effective” will be licensed by the FDA, said Marion F. Gruber, director of the FDA’s Office of Vaccines Research and Review. But some speakers and panel members raised concerns about whether the FDA’s vaccine guidelines for Covid-19 clinical trials are sufficiently rigorous.

These comments came at the first meeting of a 25-member panel of medical experts, including specialists in fields like virology, infectious diseases and biostatistics. The group, which met remotely via video-conferencing, was  established to make recommendations to the FDA on how best to assess the safety and effectiveness of vaccines.

“The FDA frequently convenes outside panels of medical experts for their advice on products,” said Peter Marks, director of the FDA’s center for biological products. “But normally panels about vaccines are watched by dozens of people. In this case, it’s watched by many thousands.”

[….]

President Trump has pushed to get a vaccine approved quickly, which has drawn concern from some public health experts and political opponents that the FDA would be under pressure to bypass usual precautions to rush a vaccine to market quickly.

FDA officials have vowed not to do so. In addition to convening the advisory panel, they have issued a set of guidelines to govern how vaccine clinical trials will be conducted and evaluated.

They also formulated a set of rigorous standards for the FDA to employ before granting what is known as an emergency-use authorization (EUA) for a vaccine. The EUA is the faster equivalent during the Covid-19 pandemic of a conventional approval by the agency.

[….]

Various speakers questioned whether the shorter EUA test period was sufficient.

“The vaccine trials have serious design flaws,” said Diana Zuckerman, president of the National Center for Health Research in Washington. In addition to the two-month period, she said FDA guidelines focus on measuring milder cases of the disease, and not the most serious cases.  

Read the full article here.

FDA Vaccine Rules Challenged as Weak at Advisory Panel Meeting

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Anna Edney and Robert Langreth, Bloomberg Business: October 22, 2020

About two dozen outside advisers to the FDA with expertise in infectious diseases met Thursday to weigh in on agency standards that require a vaccine to work in at least 50% of people and for drugmakers to collect two months of safety data on at least half of clinical trial volunteers.

“They haven’t gone far enough” in terms of safety, said Hayley Altman-Gans, a panel member and pediatrics professor at Stanford University Medical Center.

Many panel members and outside researchers who commented during the hearing worried that if a vaccine is rushed out that later turns out to have safety problems or to be less effective than promised, it could backfire in a big way, undermining public confidence in Covid-19 vaccines for years to come.

Archana Chatterjee, advisory panel member and dean of Chicago Medical School, said the public has a lot of concern about safety. Meanwhile, she added, “What we’re being asked to do is to build this plane as we fly it.”

Several panel members expressed concern that the two-month safety follow-up the FDA is calling for before a vaccine gets an emergency authorization is simply not enough. In addition to safety, it means that doctors won’t know whether a vaccine’s efficacy could fade after just a few months.

Panel member Amanda Cohn, who is chief medical officer at the National Center for Immunization and Respiratory Diseases, worried that the efficacy of vaccines that just meet the 50% threshold after two months may see reduced effectiveness a few months later if the shot doesn’t offer a long period of protection.

“Very rarely do we look at [vaccine efficacy] so shortly after completing a series,” according to Cohn, whose organization is part of the Centers for Disease Control and Prevention.

Design Flaws

The advisers weren’t alone in questioning the standards. Diana Zuckerman of the National Center for Health Research told the committee the vaccine trials “have serious design flaws.”

The two-month follow up the FDA has asked for is too short to establish how long a vaccine will work, and the trials are too geared to preventing mild infections, and may not show whether they prevent severe infections and hospitalizations, she said.

Longer follow-up may be especially important because some of the first vaccines, including messenger RNA vaccines from Pfizer Inc. and Moderna Inc., are based on new technologies that have never been used in an approved product.

The debate over the rigor of the FDA guidelines was one of two main issues debated before the committee, which heard comments from regulators, drugmakers and the public. The second questioned whether trial participants on a placebo should be advised when a vaccine is deemed to be safe and effective.

[…]

Read the full article here.