Sen Grassley Expands Investigation – Why did FDA approve Vioxx for Children???
Mon, 18 Oct 2004
The Financial Times of London and The Washington Post report that the Senate Finance Committee is expanding its probe of the FDA and its cosy relationship with drug manufacturers.
The Vioxx debacle is but the latest example of a pattern-i.e., concealment of drug hazzards and FDA suppression of its medical officers’ reports. First, the public learned about the concealment of clinical trial evidence showing that antidepressants induced suicidal behavior in children and adolescents, and about FDA’s muzzling of Dr. Andrew Mosholder’s report. Wenow learn that Viox induced heart attacks in controlled clinical trials were similarly concealed from physicians and the public–and FDA officials suppressed Dr. David Graham’s report finding that Viox induced at least 27,000 heart attacks.
These cases demonstrate FDA officials’ greater concern for the interest of drug manufacturers than for public safety. As is evident in their arrogant denials, and e-mails by FDA officials, the agency has become the obedient lap dog of the drug industry. FDA officials wag their tail and pretend not to know that the drugs they approve for conditions that don’t even meet the medical standard of disease-will be widely prescribed off-label, predictably resulting in preventable human casualties.
FDA officials approved the drug for children one month before Merck withdrew it! The FDA knew that Vioxx was causing heart attacks as early as the year 2000. We believe that FDA officials who made that decision-disregarding all evidence of heart damage–should be prosecuted for reckless endangerement.
Contact: Vera Hassner Sharav
Merck under spotlight for ‘deal’ with US drug regulators
By Christopher Bowe in New York
October 16 2004
Senator Charles Grassley, chairman of the powerful Senate finance committee, has asked Merck for information on an alleged secret deal with US regulators that would have made the US drugmaker privy to government studies on its drugs.
Mr Grassley’s request expands his existing investigation into whether the Food and Drug Administration is too cosy with drugmakers, and is lenient over safety concerns. The Iowa Republican has repeatedly blasted the FDA over concerns that it has willingly suppressed negative findings about drug dangers, including paediatric antidepressants.
His interest in the FDA’s relationship with Merck follows the company’s surprise announcement two weeks ago to withdraw Vioxx, its $2.5bn-a-year controversial pain drug. A study showed Vioxx doubled the risk of heart attacks and strokes after 18 months’ use. The FDA approved Vioxx for use in children a month before it was withdrawn.
An FDA e-mail, released by Mr Grassley, suggested that regulators in May discussed a notification agreement with Merck, particularly related to Vioxx.
In a May 14 2002 e-mail, Ann Trontell, FDA deputy drug safety director, warned colleagues that a Merck official had reminded her that “there had been an agreement that Merck would be informed prior to any FDA publication about one of their drug products”.
The Grassley investigation is reviewing studies and data that dogged Vioxx since its release in 1999, raising questions about heart risks.
Mr Grassley has also interviewed David Graham, an FDA researcher. An August study that he conducted concluded that Vioxx had heart attack risks. The full report has yet to be released.
Another e-mail from Dr Trontell dated August 12 2004 said that Merck needed to be informed about the Graham study.
“The issue for doctors and their patients is, did the government agency that’s supposed to regulate pharmaceuticals have an inappropriate agreement with Merck?” Mr Grassley said yesterday. “And did a cosy relationship between the FDA and a pharmaceutical company allow a drug with known safety risks to stay on the market longer than it should have?
Merck said yesterday that it would co-operate with the Grassley investigation. “The company is confident in how we have conducted research on Vioxx safety and in how we have communicated with the FDA about Vioxx,” Merck said in a statement.
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THE WASHINGTON POST
Painful Withdrawal for Makers of Vioxx
By Brooke A. Masters and Marc Kaufman
The two Merck & Co. executives were somber as the company plane pitched and rolled through the remnants of Hurricane Jeanne on the night of Sept. 28. The turbulence outside the aircraft was an echo of the corporate tempest leading up to their trip.
For five days Merck had been struggling with what to do with frightening new data that showed that long-term use of their $2.5 billion arthritis drug Vioxx doubled the risk of heart attacks and strokes, confirming concerns raised by earlier studies. Now research lab director Peter S. Kim and general counsel Kenneth Frazier were flying to Boston to tell one of the men most responsible for Vioxx’s success that Merck would be pulling the drug in two days.
As they sat at the former lab director’s dining table that night, they watched Edward M. Scolnick, who had been a champion of the drug before he retired, take in the implications of the data and become “despondent,” they said. Scolnick was the one who had thrown Merck’s resources behind the creation of Vioxx, a painkiller with fewer gastrointestinal side effects than traditional drugs. Backed by a $195 million ad campaign, featuring testimonials from former skater Dorothy Hamill and music by the Rascals to appeal to aging baby boomers, Merck had sold Vioxx to more than 20 million Americans since its approval in 1999 and millions more worldwide.
Now their wonder drug was suddenly under a cloud and Merck officials faced a difficult decision about how to handle the catastrophe.
On Sept. 30, the company would take the dramatic step of withdrawing the drug, sending the price of its stock into a steep slide that wiped out a quarter of the company’s value, a slide from which it has not yet recovered.
An examination of how and why Merck reacted offers an unusual look at how safety issues are handled in clinical trials once a drug is on the market and the complex business of weighing risks against benefits. Even as Merck was deciding to withdraw the drug, there were medical experts arguing that it should not. It also shows that federal regulators often rely on drug companies to tell them that a product is dangerous . The whole saga, industry experts said, raises unsettling questions about aggressive consumer marketing of drugs before their long-term safety has been proven.
Sen. Charles Grassley (R-Iowa) who has launched an investigation into the Food and Drug Administration’s handling of Vioxx said one of the questions will be whether “a too cozy relationship between the FDA and drug companies is getting in the way of public safety.”
Over the past two weeks The Washington Post had interviewed independent researchers who collected and reviewed the Vioxx data, company officials who decided how Merck would respond, critics of the drug industry and regulators who, in the end, played almost no role in its recall.
With Vioxx, researchers had been warning about the drug’s possible cardiovascular risks since 2000, only a year after it was approved by the FDA. Data from a company study found then that users had four times as many heart attacks and strokes as those who used another painkiller. But the data was not definitive, and Merck, which even critics say is one of the most responsible drug companies, repeatedly reassured the medical and financial communities that Vioxx was safe.
Independent studies of Vioxx users continued to add to the questions, and the FDA began its own review. The safety officer who conducted it concluded this summer that the drug posed a serious risk. But he said that the results were ignored and that the FDA made efforts to silence him.
When the recall occurred, it came about because of a major clinical study sponsored by Merck that tracked 2,600 patients for almost three years to find out if Vioxx helped prevent colon polyps. Merck launched the effort hoping to create new markets for Vioxx, while also laying to rest questions about the drug’s connection to heart attacks and strokes.
Far from it, the trial confirmed the predictions of Merck’s harshest critics, who had long complained that the New Jersey manufacturer was closing its eyes to Vioxx’s problems and improperly pushing a dangerous drug onto consumers with aggressive ads. Vioxx and other Cox-2 inhibitors like Celebrex had been promoted as wonder drugs, since they provided pain relief to arthritis sufferers without causing stomach problems, but now Vioxx is off the market and the others are under a cloud.
Cleveland Clinic cardiologist Eric J. Topol, an early critic of the drug, estimates Vioxx may have caused 30,000 to 100,000 heart attacks and strokes, many of them “preventable” because patients could have taken other drugs. “Why didn’t they stop the DTC [direct to consumer] marketing?” that was a major factor in increasing sales, he said. “That’s the tragedy here.”
Data and a Decision to Make The last days of Vioxx began with FedEx deliveries on Sept. 14. That was when the four members of the colon polyp trial’s Data and Safety Monitoring Board, an independent panel of specialists hired to catch harmful developments in the trial, received heart attack and stroke data for the previous six months.
Most clinical trials include independent safety monitors, and their role is little understood but crucial. The four monitors, along with a Merck statistician were the only ones with full access to information about the trial, including which patients were getting Vioxx and which were getting the placebo. As a result, they alone were in a position to conclude the drug had proven too dangerous for the trial to continue.
The same team also was monitoring another Merck trial to see if Vioxx might help protect against prostate cancer. A third trial was studying the drug’s effect on colon cancer was also underway. All three trials were placebo-controlled and “blinded” to investigators, making them the most trusted kind of drug research. These studies also were designed to answer questions about cardiovascular risk raised by earlier less conclusive research.
From the beginning of the colon polyp study, the safety monitors had noted an increased rate of hypertension among the Vioxx group. In addition, in 2003 and earlier this year, they found that more people in the Vioxx group were having cardiovascular events than in the placebo group. The numbers were small, in part because people with heart disease had been screened out of the trial, but the trend had been worrisome and the latest data were striking: After 18 months on the drug, the Vioxx group was clearly having more heart problems than the placebo group and the rate of difference was accelerating.
“When I saw the last set of data, I knew we had a tough decision to make,” said James Neaton, a University of Minnesota biostatistician, who had monitored a dozen other studies but seldom had seen such troubling data. “There was so much at stake for everyone involved. . . . You have to have data that the scientific community will accept.”
Neaton and the three safety committee members spent several days studying the data, then held their regularly scheduled phone conference Sept. 17. They talked first with Merck representatives and the principal investigator for the colon polyp trial, John Baron of Dartmouth Medical School.
Then Baron and the Merck people left the call, freeing the four safety panel members to talk openly about the latest unsettling data. Disturbing on its own, it also echoed less conclusive data from other trials.
The experts agreed unanimously that the trial had to stop. “Coming to that conclusion, it took our breath way,” Neaton said. Vioxx was Merck’s fourth top seller, and they knew their decision would be extremely harmful to the company.
Neaton immediately called Baron, who was conducting the trial with a grant from Merck, and explained the problem.
When Neaton faxed him the “unblinded” data, the signal was clear: Within the small population of people suffering from cardiovascular disease, the number from the Vioxx group after 18 months of study was twice as high as the placebo group — 15 heart attacks or strokes per 1,000 patients per year, versus 7.5 for the sugar pill. “I looked at it and concurred immediately that the trial should stop,” Baron said. But first, Baron needed to get the approval of his steering committee of others involved in the trial. This took nearly a week, during which Baron took precautions to guard against leaks of negative information and insider trading of Merck shares.
On Sept. 23 the full committee agreed to halt the trial. That afternoon, Baron called his contact at Merck to say that the drug presented an unacceptable risk of cardiovascular damage.
Baron said in the next few days, as he presented the data to company officials and some outside Merck advisers, he experienced “no pushback at all.” But then again, he said, “if an independent committee makes a recommendation like ours, only a fool would tell us to buzz off.”
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Warning From the FDA
Since the Merck decision, public health advocates and some congressional leaders have asked pointedly why the FDA, the nation’s arbiter of drug safety, did not act sooner itself. The FDA’s Galson said that his agency met often with Merck to discuss earlier troubling Vioxx studies, and said that “we insisted that we needed more information about the cardiovascular risks.” In 2001, the agency formally warned the company against misleading doctors about those risks, and in 2002, the FDA required stiffer wording on the drug label.
Nonetheless, the agency had agreed with Merck that the 2000 study had too many confounding aspects to be definitive. The national adverse event reporting system that helps the FDA flag dangerous side effects was of little use in this case because the ailments possibly caused by Vioxx — heart attacks and strokes — are so common.
Galson also said that Vioxx safety follow-up was complicated by the fact that it is unethical to give placebos to arthritic patients, because their pain needs treatment. Instead the FDA strongly supported the Merck decision to use three placebo-controlled trials in healthy people to test whether the drug was protective against prostate and colon cancer and colon polyps and also to study cardiovascular risk.
The FDA’s own study of the Vioxx safety issue has become mired in controversy. The FDA safety officer in charge of the report, David Graham, concluded that Vioxx posed much greater cardiovascular risk than the other major drug in its class, Celebrex. He presented that information at a French conference this summer. Galson has said, however, that he only saw a short abstract of the study and so could not act on its conclusions, a contention that Graham disputes.
The controversy grew on Friday when Grassley asked Merck, among other things, about an e-mail provided by Graham in which a Merck official complained that the FDA had not lived up to a prior agreement to alert the company before releasing any negative information about its products.
The FDA’s opportunity to act independently on Vioxx ended on Sept. 27, when the fax came from Merck asking for an urgent meeting with senior officials. The next day surprised FDA officials learned the drug would be pulled.
Despite the criticism directed at his agency, Galson remains unapologetic. “We did the right things based on what we knew at the time,” he said. But taking the drug off the market, he said, was the right thing, too.
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