Category Archives: In the News

FDA Revokes Avastin Approval

Lauran Neergaard, Associated Press: November 18, 2011

By LAURAN NEERGAARD, AP Medical Writer

The government delivered a blow to some desperate patients Friday as it ruled the blockbuster drug Avastin should no longer be used to treat advanced breast cancer.

Avastin is hailed for treating colon cancer and certain other malignancies. But the Food and Drug Administration said it appeared to be a false hope for breast cancer: Studies haven’t found that it helps those patients live longer or brings enough other benefit to outweigh its dangerous side effects.

“I did not come to this decision lightly,” said the FDA’s commissioner, Dr. Margaret Hamburg. But she said, “Sometimes despite the hopes of investigators, patients, industry and even the FDA itself, the results of rigorous testing can be disappointing.”

Avastin remains on the market to treat certain colon, lung, kidney and brain cancers. Doctors are free to prescribe any marketed drug as they see fit. So even though the FDA formally revoked Avastin’s approval as a breast cancer treatment, women could still receive it — but their insurers may not pay for it. Some insurers already have quit in anticipation of FDA’s long-expected ruling.

However, “Medicare will continue to cover Avastin,” said Brian Cook, spokesman for the Centers for Medicare & Medicaid Services. The agency “will monitor the issue and evaluate coverage options as a result of action by the FDA but has no immediate plans to change coverage policies.”

Including infusion fees, a year’s treatment with Avastin can reach $100,000.

The ruling disappointed patients who believe Avastin is helping to curb their incurable cancer.

“It’s saved my life,” said a tearful Sue Boyce, 54, of Chicago. She’s taken Avastin in addition to chemotherapy since joining a research study in 2003. Her breast cancer eventually spread to her lungs, liver and brain, but Boyce says she is stable and faring well.

“So I’m hoping the insurance company will grandfather me in to continue taking it,” she said.

The Avastin saga began in 2008, when an initial study suggested the drug could delay tumor growth for a few months in women whose breast cancer had spread to other parts of the body. Over the objection of its own advisers and to the surprise of cancer groups, FDA gave Avastin conditional approval — it could be sold for such women while manufacturer Genentech tried to prove it really worked.

The problem: Ultimately, the tumor effect was even smaller than first thought. Across repeated studies, Avastin patients didn’t live longer or have a higher quality of life. Yet the drug causes some life-threatening risks, including severe high blood pressure, massive bleeding, heart attack or heart failure and tears in the stomach and intestines, the FDA concluded. In two public hearings — one last year and one this summer — FDA advisers urged the agency to revoke that approval.

“The science is clear: Breast cancer patients are more likely to be harmed than helped by Avastin,” said Diana Zuckerman of the National Research Center for Women and Families in Washington.

Genentech had argued the drug should remain available while it conducted more research to see if certain subsets of breast cancer patients might benefit, and some patients and their doctors had argued passionately for the drug.

“There certainly are patients who benefit tremendously,” said Boyce’s oncologist, Dr. Melody Cobleigh of Rush University Medical Center. “We’ll just be battling with the insurance companies.”

“For those not fortunate enough to be on Medicare or an insurance plan that covers it, it’s a death sentence,” Christi Turnage of Madison, Miss., said of the FDA’s decision. Her breast cancer had moved into her lungs before she began Avastin three years ago and the spreading stopped, but Turnage said her insurer is ending coverage and she will seek financial help from Genentech’s access program.

Hamburg said that she considered those arguments but that scientifically there are no clues yet to identify who those rare Avastin responders would be — putting a lot of people at risk in order for a few to get some as-yet-unknowable benefit. She urged Genentech to do that research, saying the FDA “absolutely” would reconsider if the company could find the right evidence.

Genentech, part of Swiss drugmaker Roche Group, pledged to begin that research.

“We are disappointed with the outcome,” said company chief medical officer Dr. Hal Barron. “We remain committed to the many women with this incurable disease and will continue to provide help through our patient support programs to those who may be facing obstacles to receiving their treatment in the United States.”

The breast cancer organization Susan G. Komen for the Cure said that it respected the FDA’s decision and that it was time for researchers to concentrate on finding so-called biomarkers that would tell which drug is right for which patient.

“Each type of cancer is very different from another in important ways, and in the end it’s no surprise that Avastin’s effectiveness may not be equivalent against all types of cancer,” said Dr. Neal Meropol of University Hospitals Case Medical Center in Cleveland, who has long used Avastin for colon cancer.

Associated Press writer Marley Seaman in New York contributed to this report.

FDA Eyes Registry for Breast Implants Problems

Anna Yukhananov, Reuters: August 31, 2011

U.S. health regulators said they would consider setting up a registry that tracks safety problems with breast implants, after too many patients dropped out of company-funded studies.

But the U.S. Food and Drug Administration emphasized on Wednesday that silicone implants were safe and would stay on the market, despite calls for their removal by consumer groups.

Expert advisers who held a two-day meeting to discuss post-approval safety studies for silicone implants urged the FDA to establish a registry.

“We believe it’s a good idea to have a conversation about a breast implant registry. … (But) we believe implants are safe and effective and should remain on the market,” Dr William Maisel, deputy director of the FDA’s devices division, told reporters after the meeting.

In 2006 the FDA approved silicone gel-filled breast implants sold by Allergan and Johnson & Johnson’s Mentor unit on condition both companies follow 40,000 women for 10 years to look at safety issues, as well as extend smaller pre-approval studies.

So far, Allergan has collected preliminary two-year data for 60 percent of participants, while Mentor has collected three-year data for only 21 percent — well below the 65 percent the FDA said would be acceptable.

“It’s very inefficient to enroll 40,000 patients, and only get data on 400 on them (for rare symptoms). So having registries is a much more high-value approach,” said Jason Connor, a biostatistician on the advisory panel.

There were almost 400,000 breast enlargement or reconstruction procedures in the United States in 2010, according to the American Society of Plastic Surgeons. That includes silicone and saline implants.

In June, the FDA said the risks of breast implants are well understood, after looking at the companies’ results as well as reports of negative events and scientific literature. It said women who get silicone implants are likely to need additional surgery within 10 years.

The agency had banned silicone implants for most U.S. women in 1992 after some said the devices leaked and made them chronically ill.

The companies and FDA advisers said patients and their doctors may not have enough incentives to stay in the company-funded studies, especially if they have to fill out a 27-page questionnaire every year, or do expensive medical procedures such as MRIs that test if their implant has ruptured.

A registry, which would track any patient who has had a breast implant, can provide broader data, making it easier to identify any complications, such as rupturing of the device.

Panel members said women should be encouraged to enroll in the registry by linking participation to the warranty on their devices, or to their surgeons’ certification.

Maisel also said it was important to involve different groups, including advocacy groups and physicians, to make sure patients understand the benefits of sharing information about their implants.

“What we’ve heard over the last two days is that it takes a whole community,” Maisel said. “You can have the most well-meaning company, but if the patients don’t want to participate in the study, that’s out of their control.”

However, some groups said the agency was letting manufacturers, especially Mentor, off the hook.

“You can’t ignore the fact that Allergan has three times more patients participating than Mentor. You can’t not hold Mentor responsible for that,” said Diana Zuckerman, president of the National Research Center for Women & Families.

FDA: Breast Implant Safety Studies Will Continue

Brenda Goodman, Web MD: August 31, 2011

Officials Say They Will Work With Companies to Improve Follow-Up Rates

After two days of testimony on what the FDA should do about troubled long-term safety studies of silicone-gel breast implants, agency officials said the studies would continue.

“The current post-approval studies will continue,” said William Maisel, MD, MPH, chief scientist in the FDA’s Center for Devices and Radiological Health, in remarks after the meeting. “The FDA is committed to seeing them completed and making sure the follow-up rates improve.”

The safety studies in question, of nearly 100,000 women with breast implants, which the FDA said were the largest ever required of manufacturers after their devices were marketed to the public, have lost track of up to 79% of the women they enrolled just three years into planned 10-year efforts.

As a result, FDA epidemiologists testified yesterday, the studies had lost the ability to find rare complications, including connective tissue diseases, that they were designed to look for.

Save or Scrap Troubled Studies?

In a second day of testimony, the General and Plastic Surgery Devices Panel of the Medical Devices Advisory Committee to the FDA heard plenty of opinions about what should happen with the studies.

Some panelists felt the companies should be compelled by the FDA to finish the studies they had agreed to complete as a condition of the approval of their devices. They asked FDA officials what regulatory powers the agency could wield to do that.

“If you do not meet the conditions of approval the FDA does have regulatory authority to either impose civil penalties or other regulatory actions,” said Mark N. Melkerson, director of the Division of Surgical, Orthopedic and Restorative Devices at the FDA’s Center for Devices and Radiological Health.

The agency said it was not considering taking silicone breast implants off the market.

Some consumer advocates thought that option ought to be on the table, however.

“It has now been 25 years since FDA declared silicone breast implants a class III device, and in that period, only weak attempts have been made to assess the safety of these implants,” said Kate Ryan, of the nonprofit Breast Cancer Action, which is based in San Francisco.

“Follow-up rates on the two large studies are dismal,” Ryan said in testimony. “Given that these studies were a condition of approval, Mentor should have done much more to ensure it had the technical skills to locate women and provide women with incentives to participate in this important research.”

Manufacturers Respond

Manufacturers fired back against the notion that they weren’t doing enough to complete the studies.

“To imply that patient safety is not first on our radar is simply inaccurate,” said Caroline Van Hove, a spokeswoman for Allergan. She said the company hoped that the meeting would give the FDA an opportunity to more fully appreciate the complexity of the required studies.

“In general, we are highly committed to collecting quality data in a way that is possible for them and possible for us,” she said.

In other testimony, panelists heard from plastic surgeons like Dennis Hammond, MD, of Cedar Rapids, Mich., who participated in the clinical trials of Mentor’s Memory Gel implants.

In contrast to the 21% of patients retained overall by one of the Mentor studies, Hammond said he’d kept track of about 76% of the women he was following.

Panelists asked him how he did it.

“You’ve got to have dedicated surgeons that are really interested in making this study work,” Hammond said. He said he had one staff member devoted to follow-up with women in the clinical trial and that he allocated about half a day of clinical time each week to seeing women in the study for follow-up visits.

Additionally, “A really compelling part would be if the patient had some sort of compensation. It doesn’t have to be wild, really, just something they get back to compensate for the drive in.”

Allergan, the maker of Natrelle implants, which had a 60% follow-up rate with patients after two years, said they paid women a small amount of money for filling out annual questionnaires and coming back to scheduled office visits. Mentor did not.

“While it was certainly admirable to try to get 40,000 patients [in each study] to come back, that just wasn’t going to happen,” Hammond said.

Perspective of Surgeons

The American Society of Plastic Surgeons (ASPS) agreed, and it urged the FDA to consider other data sources, besides the troubled studies, if the agency still felt the need for continued safety monitoring.

“There has been shown to be no relationship between silicone breast implants and connective tissue disorders, which was the main reason these studies were agreed to on the release of these products,” said Phil Haeck, MD, president of the ASPS, in testimony to the panel. “This issue has been settled with the post-approval study data as it already stands now.”

Haeck said sources like the FDA’s own surveillance system, the Manufacture and User Facility Device Experience (MAUDE), which relies on clinicians to report instances of adverse events associated with devices, case reports, patient registries in the U.S. and Europe, and reviews of medical studies, could be relied on to spot any rare events that might arise.

Consumer advocates, like Dana Casciotti, PhD, the public health research director at the Cancer Prevention and Treatment Fund, said annual, 27-page questionnaires women were asked to complete should be shortened and simplified.

“I’ve seen copies of these questionnaires, and they are much too long” and technical, she said.

Panel members seemed to agree, and some suggested that future questionnaires might yield better data if they focused on symptoms rather than diagnosed diseases, since many connective tissue diseases, like lupus, are difficult to diagnose.

Perspective of Surgeons continued…

Patients who took time off work and paid their way to testify at the meeting urged the FDA to keep trying to answer questions about the long-term and rare complications of breast implants.

“Not everyone gets sick, but those who do, we pay dearly,” said Sharon Schwengler of Phoenix.

 

FDA Affirms Safety of Breast Implants

Gardiner Harris, New York Times: August 31, 2011

WASHINGTON — After two days of discussion and testimony about silicone breast implants, a top government health official said he had heard nothing to shake his faith in the safety of the widely used implants.

The official, Dr. William Maisel, chief scientist for the Food and Drug Administration’s Center for Devices, said silicone breast implants were safe.

“We felt that way before the meeting, and we continue to feel that way after the presentations and discussions over the past two days,” Dr. Maisel said.

There are risks to the implants, however, Dr. Maisel said, including ruptures, a hardening of the area around the implants, the need to remove the implants, scarring, pain, infection and asymmetry. “Women should feel assured that the F.D.A. continues to believe that currently marketed silicone breast implants are safe,” he said.

Some patients and women’s groups who testified at the meeting disagreed.

Diana Zuckerman, president of the National Research Center for Women and Families, a research and education group, told an expert panel that the two companies that manufacture silicone breast implants — Johnson & Johnson and Allergan — had done a poor job of studying patients who got the implants, as the F.D.A. required them to do.

“And without proper data, we still don’t know how safe or effective they are and whether there are certain patients at risk for extremely negative outcomes,” Ms. Zuckerman said.

Dr. Maisel agreed that the studies conducted by the two companies had failed to follow as many patients as the agency had hoped.

One purpose of this week’s meeting was to ask the expert panel what the agency and the two companies should do about that poor follow-up. Some suggested that patients should be paid for participating; others mentioned that doctors should get some money, too.

There was some criticism of the 27-page research form that patients who participate in the study are required to complete and whether it could be shortened. Nearly all expressed hope that a registry could be created that would follow all breast implant patients, but such registries are expensive to maintain and complicated to create.

The committee also agreed that patients should no longer be told that they should get a magnetic resonance imaging test three years after getting implants and every two years following.

The reason for telling patients to get M.R.I.’s is that silicone breast implants sometimes rupture without women being aware, and an M.R.I. can reveal this unseen problem.

But many patients ignore the requirements because M.R.I.’s are expensive and it is not clear what they should do when an unseen rupture is discovered; the risks associated with ruptured implants may not be greater than the risks of the operation needed to take them out.

“F.D.A. continues to believe, as does the panel, that M.R.I. is the gold standard for evaluating breast implants for silent rupture,” Dr. Maisel said. “But there was consensus among the panel that the requirements for ongoing M.R.I.’s should be removed.”

Dr. Maisel promised that the F.D.A. would study whether to follow this advice.

 

Experts Say Medical Device Review System Flawed

The Miami Herald: July 29, 2011

The government should abandon a 35-year-old system for approving most medical devices in the U.S. because it offers little to no assurance of safety for patients, a panel of medical experts concludes in a report Friday.

The surprise recommendation from the Institute of Medicine panel calls for a massive reworking of how the government regulates medical devices, a $350 billion industry that encompasses everything from pacemakers to X-ray scanners to contact lenses.

The 12-member group’s advice, commissioned by the Food and Drug Administration, is not binding. But it could signal a new era of tighter standards for medical device manufacturers, who have long benefited from less safety scrutiny than their peers in the drug industry.

FDA requires that most new prescription drugs go through clinical trials to prove that patients fare better after receiving medication. Most devices only have to show that they are similar to devices already on the market. Truly new devices have to undergo more scrutiny.

In a highly unusual move, the FDA said Thursday evening that it disagreed with the group’s recommendations, but would hold a public meeting to discuss them.

The report arrives as the FDA fends off pointed criticism from manufacturers who say the agency has become too slow and bureaucratic in clearing new devices, driving up costs for companies and forcing some out of business. They point out that some devices reach the market two years earlier in Europe, where safety standards are lower. In the past year, companies have taken their arguments to Capitol Hill, where lawmakers have grilled FDA officials over device reviews.

But the Institute of Medicine panelists, mostly doctors and researchers, appear to overwhelmingly side with public safety advocates who have argued for years that devices used to treat and detect illnesses must undergo real medical testing.

The FDA sought the group’s advice as it updates the system used to clear more than 90 percent of devices in the U.S. The so-called 510(k) system was created by Congress in 1976 to grant speedy approval to devices that are similar to products already on the market. The pathway was originally intended as a temporary method to grandfather in devices that had been used for decades. Instead it has become the standard tool to launch new medical implants.

The IOM generally recommends ways to improve or modify government programs, but in an unexpected move the panel said 510(k) approvals are “flawed” and should be eliminated completely.

“A system was put in place 35 years ago that does not really assess safety and effectiveness,” said panel chair David Challoner, former vice president of health affairs at University of Florida. “We need something different for the next 35 years. We’re dealing with a whole new world: new technology, new materials and new data.”

Challoner and the other panelists recommend the FDA develop a new system based on safety metrics and tracking device failure rates in the real world. He said better tracking of device complications could take the place of premarket testing, which would be financially unfeasible if applied to all new devices.

The group stresses that medical devices cleared through the pathway are not inherently unsafe – most probably are safe – but the system used to clear them provides little assurance to doctors and patients.

The 510(k) system is popular among manufacturers because it is a faster, cheaper path to market than the review process for first-of-a-kind devices, which must undergo rigorous medical testing. Hip replacements, CT scanners and drug pumps are among the devices cleared by 510(k).

As generations of devices have been cleared year after year, FDA critics say dangerous devices that pose real risks to patients have slipped through because they vaguely resemble products approved decades ago.

“Originally there was this idea that the 510k would wither away and over time more and more new devices would go through the more onerous path. But instead there are more devices cleared this way than ever,” Dr. Diana Zuckerman, director of the nonprofit National Research Center for Women & Families, said in an interview Thursday.

Earlier this month Zuckerman and other safety advocates critics seized on new reports of painful complications with pelvic surgical mesh as the latest example of the shortcomings of the abbreviated review system. Reports of pain, bleeding and infection with the implants are up 500 percent since 2008 among women who’ve had surgery to support the pelvic wall. The FDA cleared the device for that use in 2002 via 510(k). Similar safety issues have plagued metal-on-metal hip implants in recent years. […]

 

Most Women with Silicone Breast Implants Need More Surgery

Rita Rubin, MSNBC: June 22, 2011

More than one in five women who had silicone breast implants for cosmetic purposes and half of those who got the implants after a mastectomy needed surgery to remove the implants within a decade, according to a Food and Drug Administration report out Wednesday.

“Recognize that breast implants are not lifetime devices,” says the FDA report on the longest studies on the implant to date. “The longer you have your implants, the more likely it will be for you to have them removed.”

In 2010, U.S. surgeons performed nearly 400,000 breast implant procedures. About three-quarters were for breast augmentation, while the rest were for breast reconstruction. About half the surgeries used silicone gel implants; the other half used implants filled with saline.

Silicone implants were pulled off the market in 1992, after concerns were raised about lack of safety data and worries that leaking silicone was linked to immune-system disease.

But the FDA returned the implants to the market in November 2006 after clinical trials didn’t find a link to feared diseases. Plastic surgeons and some women were clamoring for the return of the silicone versions because they say they look and feel more real than saline, which can ripple because it’s essentially a sack of salt water.

The approval required implant makers Allergan and Mentor to conduct large 10-year studies following up on patient experiences, and Wednesday’s report is the first glimpse at how the breast implants held up.

The FDA says 20 to 40 percent of patients who get silicone implants for cosmetic reasons will need another operation to modify or remove them within 10 years. For women with implants for breast reconstruction, the number is even higher, at 40 to 70 percent. The biggest issue was scar tissue hardening around the implant.

Other complications include implant rupture, wrinkling, asymmetry, pain and infection, the report said. Women with breast implants are also slightly more likely to be diagnosed with anaplastic large cell lymphoma, a rare form of cancer.

Despite the risk of complications, the FDA believes that silicone implants are reasonably safe, the report said.

But women in the studies had a high dropout rate and so other complications or long-term safety issues might be missed, the agency’s report says.

Mentor has three-year data for only one out of every five women in its study, while Allergan has two-year data for three out of every five, according to the FDA’s safety update.

“Low follow-up rates and other study limitations may limit interpretation of the data and preclude the detection of very rare complications,” the agency concluded.

Without knowing why patients have dropped out of the studies, it’s impossible to reach any conclusions about implant safety, says Diana Zuckerman, president of the nonprofit National Research Center for Women & Families in Washington, D.C.

“Did they stop going to the doctor because their implants were removed?” Zuckerman says. “Did they stop going because they died or got very sick? Or are they so happy with their implants that they skipped follow-up visits?”

The FDA has been working with the companies to improve patients’ participation in the studies and will convene a meeting of outside experts to discuss the issue later this summer, says William Maisel, deputy director for science and chief scientist at the agency’s Center for Devices and Radiological Health.

Most women who get breast implants are in their 20s and 30s, and may mistakenly consider breast implants a one-time investment.

“They need to understand they’re going to need many removals and replacements for the rest of their lives,” Zuckerman says.

Most Recalled Medical Devices Received Speedy FDA Review

Andrew Zajac, Los Angeles Times: February 15, 2011

A disproportionate number of medical devices recalled because of possible links to serious health problems or deaths — including external defibrillators and insulin infusion pumps — were approved under an abbreviated process that did not require advance testing on patients, according to a five-year study of such recalls.

More than 70% of the 113 recalled devices were cleared for market under a shorter Food and Drug Administration review because they were deemed similar to products already on the market, the study found.

Cardiovascular devices, chiefly external defibrillators, made up nearly a third of the recalled medical products from 2005 through 2009, the time covered by the review. A 2006 study linked defibrillator failure to more than 300 deaths over a 10-year period.

Only 21 of the recalls in the new study involved products approved after clinical trials. Eighty had been approved under the shorter process. Eight were exempt from FDA regulations, and four were counterfeit or categorized as “other.”

The findings, published Monday in the Archives of Internal Medicine, showed that a recent update of the FDA’s abbreviated review process, known as 510(k), was inadequate, said Diana Zuckerman, one of the study’s coauthors.

Medical device companies have stretched the notion of “similar” far beyond regulators’ intention when the law went on the books in 1976, said Zuckerman, president of the National Research Center for Women & Families. “The law has gotten looser and looser over time.”

The FDA should increase the number of devices subject to the stricter review, known as pre-market approval, or devise an intermediate category with more rigor than the 510(k) process, said Steven Nissen, a Cleveland Clinic cardiologist and a study coauthor.

The findings buttress a 2009 Government Accountability Office report that dozens of high-risk devices did not meet the legal standard for abbreviated review, Nissen said.

The FDA is evaluating high-risk products approved through its abbreviated process to see whether they should be subject to more rigorous oversight, agency spokeswoman Karen Riley said in a statement.

The study is the latest chapter in a bitter debate between device makers and public health advocates. In August, the FDA released a draft of new rules that added stricter requirements to the shorter process. […]

 

Zuckerman said she was hopeful the study would influence regulators to tighten standards.

“The process should be more stringent,” she said. “It doesn’t have to be slower.”

Read the original article here.

Device Review Process Faulted

Alicia Mundy and Jon Kamp, Wall Street Journal: February 15, 2011

Most of the medical devices recalled in recent years because of serious or life-threatening hazards were initially cleared for market through an abbreviated approval system that doesn’t require testing on patients, according to a study in the Archives of Internal Medicine.

The study by a Washington health-research group and the Cleveland Clinic’s Steven Nissen comes after the Food and Drug Administration proposed changes to tighten the faster approval system, known as 510(k), but put off some of its toughest proposals for further study under pressure from device makers.

Of 113 medical devices that were subject to recalls between 2005 and 2009, 80 were allowed on the market through the 510(k) program, the study found. About a third of the recalled devices were cardiovascular products, including several brands of external defibrillators.

“These findings suggest that reform of the regulatory process is needed to ensure the safety of medical devices,” said the authors. The lead author, Diana Zuckerman, heads the National Research Center for Women & Families, a group that has advocated stiffer approval standards for medical devices.

The 510(k) process is popular with the industry because it can save time and money in regulatory reviews, and industry lobbyists have been campaigning on Capitol Hill against radical revisions to the program.

The process requires that the proposed device be similar to a product already marketed, and is intended for low and moderate-risk devices.

The industry’s lobbying group, the Advanced Medical Technology Association, or AdvaMed, said the study is flawed because it looks at the number of recalls without comparing that to the number of devices that didn’t have problems. AdvaMed-supported studies say that more than 99% of the devices cleared through 510(k) don’t face recalls.

Overall, the 510(k) program has a “remarkable safety record with extremely low recall rates,” AdvaMed said. […]

 

A 510(k) costs the FDA an average of about $20,000 per application compared to more than $800,000 for a full device review by the agency, according to the report. A full review includes evaluation of safety-and-efficacy clinical trials. […]

Read the original article here.

 

Recalled Devices Mostly Untested, New Study Says

Barry Meier, New York Times: February 14, 2011

Most medical devices recalled in recent years by the Food and Drug Administration because they posed a high risk to patients were not rigorously studied before being cleared for sale, according to a study in a medical journal released Monday.

The study, which was posted on the Web site of The Archives of Internal Medicine, found that most medical devices that were the subject of high-risk recalls from 2005 to 2009 had been cleared through a regulatory pathway that requires little, if any, testing. The devices included external heart defibrillators, hospital infusion pumps and mechanical ventilators.

The F.D.A. described the study’s findings as unoriginal, and a trade group representing medical device makers called the research flawed. Still, the report is coming out at a time when the Obama administration appears to be stepping back from what initially appeared to be a more aggressive approach to the regulation of medical devices.

The study was written by Diana M. Zuckerman and Paul Brown, two officials from the consumer group the National Research Center for Women and Families, and Dr. Steven E. Nissen, a cardiologist at the Cleveland Clinic, who was among the first physicians to raise questions about the drug Vioxx.

In a telephone interview, Dr. Nissen said that he was concerned that the administration had failed to take a more aggressive posture toward tightening the regulation of medical devices. In recent years, thousands of patients have been injured and some have died because of failed medical devices that were cleared for sale with little testing.

“This is an area where the F.D.A. has failed the public,” Dr. Nissen said.

In a statement, the F.D.A. said that the data was not new and reflected a similar analysis that had been presented last year at a public meeting held at the Institute of Medicine. Ms. Zuckerman said she was the one who presented data at that meeting.

Recently, the agency announced a series of steps that it said would “strengthen” device regulation, though it deferred decisions on some other major proposals pending recommendations later this year from the Institute of Medicine.

The F.D.A. uses two pathways to review medical devices. In one pathway, typically used for critical, life-sustaining products like implanted heart defibrillators, manufacturers must often run clinical trials to show that a product is safe and effective.

But there is a less rigorous route, known as the 510K process, through which a manufacturer need only show that a new product is equivalent to one already on the market. Some devices implanted in the body like artificial hips and knees fall into this category, as do dozens of other products, including external defibrillators and infusion pumps.

The study focused on these 510K devices. It reported that of the 113 high-priority recalls initiated by the F.D.A. from 2005 to 2009, 80 of the recalls, or 71 percent, involved devices cleared through the 510K process.

In a statement, an industry trade group, the Advanced Medical Technology Association, described the findings as misleading. Among other things, the group said that it was not surprising that 510K devices accounted for the most recalls since most devices that F.D.A. allowed for sale went through that process.

Recalled Medical Devices Undergo Little Testing, Study Finds

John Fauber, Milwaukee Journal Sentinel: February 14, 2011

More than 80% of medical device recalls between 2005 and 2009  involved products that did not undergo a rigorous, clinical trial testing program prior to approval by the FDA, a new study found.

Among the 113 recalls of devices involving serious health problems or death, only 19% went through a pre-market approval process requiring proof of safety and effectiveness. The vast majority of the devices were approved by the FDA using a less stringent process known as 510 (k).

“The excessive use of the abbreviated approval process has allowed too many devices intended for life-preserving indications to reach the market without adequate clinical testing,” said co-author Steve Nissen.  “Unless this system is reformed promptly, we fear that public health will be jeopardized by medical device recalls for life-threatening defects.”

Nissen, chairman of cardiovascular medicine at the Cleveland Clinic, noted that many of the recalls (31%) were cardiac devices, including automatic external defibrillators involved in hundreds of deaths.

Co-author Diana Zuckerman said the FDA is using the less-stringent 510 (k) process to approve 98% of medical devices, including heart valves, glucose meters and artificial hips and knees.

“We think patients will be shocked to learn how often new medical products, using different materials, made by a different manufacturer, are not scientifically tested in humans to see how well they work,” said Zuckerman, of the National Research Center for Women & Families. “Our study shows that as a result, many devices fail and more than 112 million products were recalled in just five years.”

The study was published in the Archives of Internal Medicine.