Showing posts with label FDA. Show all posts
Showing posts with label FDA. Show all posts

Thursday, April 29, 2010

First approval for vaccine from cancer - Dungreon's Provenge

The FDA approved Dendreon's immunotherapy Provenge for the treatment of certain men with advanced prostate cancer, marking the first approval of a vaccine to treat cancer. Karen Midthun, acting director of the FDA’s Center for Biologics Evaluation and Research said the autologous cellular immunotherapy "provides a new treatment option for men with advanced prostate cancer, who currently have limited effective therapies available.”

Source 

Monday, March 15, 2010

Pushing to think your own thoughts

Yesterday I spent wonderful 1h and thirty-something minutes watching a documentary "Food, Inc" and this great piece of art finally released all my remaining fears about food. It's not that I never gave a thought about what I eat - contrary, I think of it quite a lot and read the small font on the packages. Now I will have to read even more attentively.

Being brought up by two scientists (organic chemists) I was being informed about the structure of everything I see from my early childhood and my parents tried to educate me in every aspect of life. I used to like to play with and read an "Encyclopedia of young chemist" and many other books on chemistry in my house, just to become a theoretical economist years later (oops). Imagine the disappointment of my parents!

I'm distracting a little bit from my initial purpose of posting - I was trying to say, I was taught to think and analyze everything all the time and this made me consider myself a quite smart person. And this documentary again proved me how little I know and how little an ordinary citizen can know.

What each and every citizen can do is: THINK, read small letters on the pack and be logical. I am not even speaking about thinking of a healthy diet and ignoring fast foods and etc.

I am so disappointed and frustrated that it's really hard to express.

Sunday, February 21, 2010

Heard the news?

Take a deep breath... everything is not so bad

So upsetting to read the news about such vital meds - when life is going to get better and taking meds from asthma won't cause death?

Saturday, February 20, 2010

Remove Diabetes Drug Avandia From Market: FDA Reports

The blockbuster type 2 diabetes drug Avandia raises users' odds for heart attack and heart failure and should be removed from the market, according to confidential government reports.
The New York Times on Saturday reported on documents from the U.S. Food and Drug Administration that find that if people now taking (rosiglitazone) Avandia switched to a similar medication, Actos, about 500 heart attacks and 300 cases of heart failure would be eliminated each month. And in a report from the Institute for Safe Medication Practice, Avandia was linked to 304 deaths in the third quarter of 2009 alone, the highest for any prescribed drug in that time period, the Times reported.
In one of the FDA documents, dated October 2008, Drs. David Graham and Kate Gelperin -- drug safety officials at the agency -- agreed that "rosiglitazone should be removed from the market."
The reports, obtained early by the Times, are yet another chapter in Avandia's checkered history. The drug was once taken by millions worldwide, but that changed after a study released in early May of 2007 by the Cleveland Clinic suggested that Avandia carried cardiovascular risks. That study, which included more than 28,000 people, found that Avandia increased a user's odds of heart attack by 43 percent compared to those not taking the medicine.
At the time, Dr. Bruce M. Psaty of the University of Washington -- who also co-wrote an accompanying editorial in the New England Journal of Medicine -- urged the FDA to restrict access to Avandia and cited both the agency and the drug's maker, GlaxoSmithKline, for poor oversight.
"The primary problem here is that studies that were needed early on about the health benefits of this drug were never done," Psaty told HealthDay. "As a result of the failure of the sponsor to do long-term clinical trials to show health benefits, as a result of the failure of the FDA to insist on it, we have data that are weak."
Following on the Cleveland Clinic study, the FDA demanded "black box" warnings on labeling for both Avandia and Actos, warning of a potentially heightened risks for heart failure. However, other studies found no raised level of heart risk, and at the time the agency said it had not reached a definitive conclusion on the data.
In November of the same year, the FDA updated Avandia's labeling to include a caution regarding heart attack risk. At the time, Dr. Janet Woodcock, acting director of the FDA's Center for Drug Evaluation and Research, said that, "we are keeping Avandia on the market because we have concluded there isn't enough evidence to indicate that the risk of heart attack is higher for Avandia than other type 2 diabetes treatments."
The story got more complicated in 2008, as a number of studies emerged tying the use of Avandia to increased bone fracture risk.
Throughout 2009, more studies reiterating the drug's heart risks also came to light, including one published in the BMJ suggesting that Avandia's risk for heart failure seemed to outstrip those of its related rival, Actos.
By that point, "most clinicians [had] stopped using Avandia -- some will use Actos instead or go to another class completely," Dr. Carl J. Lavie, medical director of cardiac rehabilitation at the Ochsner Heart and Vascular Institute in New Orleans, told HealthDay at the time.
The emergence of the leaked documents on Saturday comes at a time when officials within the FDA seem to be at loggerheads over whether to ban Avandia or not, the Times reported. The newspaper said that some officials believe that safer alternatives exist, while others say the evidence on Avandia's safety is conflicted and the drug should remain available as a treatment option.
Trying to sort things out, in December of 2009 Woodcock asked officials at the FDA to convene another advisory committee to determine whether Avandia should remain on the market, with a decision expected this summer.
In the meantime, a bipartisan Senate investigation -- overseen by Sen. Max Baucus (D-Mont.) and Sen. Charles E. Grassley(R-Iowa) -- has pored over 250,00 internal documents from GlaxoSmithKline. The investigation has placed much of the blame for the Avandia debacle on the company, contending that it neglected to warn patients for years of the drug's dangers.
"G.S.K. executives attempted to intimidate independent physicians, focused on strategies to minimize or misrepresent findings that Avandia may increase cardiovascular risk, and sought ways to downplay findings that a competing drug might reduce cardiovascular risk," according to the Senate investigation report, which is slated for release Monday but was obtained early by the Times.
Speaking to the newspaper Friday night, agency commissioner Dr. Margaret Hamburg said that, "I await the recommendations of the advisory committee. Meanwhile, I am reviewing the inquiry made by Senators Baucus and Grassley and I am reaching out to ensure that I have a complete understanding and awareness of all of the data and issues involved."
For its part, GlaxoSmithKline continued to assert that "scientific evidence simply does not establish" that Avandia heightens heart attack risk, and it disagrees with the Senate investigation findings.
In the wake of the controversy, the drug company had been directed by the FDA to conduct a trial comparing rates of heart attacks, strokes and heart-linked deaths among users of Avandia, Actos or a placebo. But according to internal documents accessed by the Times, Graham and Gelperin characterized the study, called TIDE, as "unethical and exploitive," with patients being given Avandia despite the fact that it appears to come with greater risks and no added benefit over Actos.
One of the Graham/Gelperin reports -- dated October 2008 -- concludes that, "Although the proposed TIDE trial is motivated by a desire for definitive answers regarding the cardiovascular safety of the drug rosiglitazone, the safety of the study itself cannot be assured and is not acceptable."
However, other FDA officials overruled those concerns and TIDE is still enrolling patients, with preliminary results expected by 2014.
The ongoing controversy has dampened patients' and physicians' enthusiasm for Avandia. According to the Times, while sales of the drug topped $3.2 billion in 2006, those numbers plummeted soon after the first studies suggesting risk emerged a year later.
Still, "hundreds of thousands" of people still take Avandia, the Times noted. GlaxoSmithKline's patent on the drug expires in 2012.

Source: Drugs.com