US panel rejects Avastin for breast cancer use

June 29, 2011

An expert panel urged the US Food and Drug Administration on Wednesday to strip the Roche-made drug Avastin of its label for use against breast cancer because it is neither safe nor effective.

After a rare two-day appeal hearing by Genentech, a US unit of the Swiss pharmaceutical giant, the panel voted 6-0 to uphold its earlier recommendation in December to stop the use of Avastin for breast cancer.

The drug, also known as bevacizumab, carries risks such as severe high blood pressure and hemorrhage and does not prolong overall survival in women suffering from breast cancer, the panel said.

A final decision by the FDA commissioner must be issued, but will not likely come before the end of July. The FDA does not have to follow the recommendations of the expert panel but it usually does.

The docket will remain open until July 28 for public comment, and a final decision will follow, though an exact date has not been announced.

"The commissioner's decision related to breast cancer will not affect Avastin's approved indications for use in colon, lung, kidney, and brain cancers," the FDA said.

"That is, regardless of the final decision on metastatic breast cancer approval, Avastin will remain on the market."

Some members of the public, including women dressed in pink who carried signs that read: "I am more than a statistic" had clustered outside the FDA building where the hearing took place, according to media reports.

Breast cancer patients who were taking Avastin were allowed to talk about their experiences.

Afterward, Terry Kalley, founder of Freedom of Access to Medicines (FAMEDS), said he was disappointed, but not surprised, with the decision.

"This panel that has passed judgment on a life or death matter with breast cancer should have been made up of breast cancer specialists and oncologists, but it had zero breast cancer specialists or oncologists on it," Kalley said in a press release Wednesday after the decision.

"We had breast cancer oncologists testifying on our behalf yesterday to keep patient access to Avastin."

Kalley's wife has late stage breast cancer and has been "immensely helped by Avastin," according to the statement.

However, the FDA panel decided that arguments in favor of the drug were not enough to sway the panel from its earlier decision.

Initial trial results that showed patients had an extra five months of "progression-free survival" could not be replicated, and some deaths were associated with the drug, the FDA said.

"The hearing has also provided an opportunity for the public to observe and participate in the type of difficult decision-making process that the FDA engages in each day as it considers the approval or the withdrawal of approval, of drug products," said Karen Midthun, director of the Center for Biologics Evaluation and Research who presided over the hearing.

"As illustrated by the public presentations at the beginning of the hearing, FDA's focus is always on the effect that our decisions will have on patients who will use those products, including those patients who may be benefited by them, and those who may also be harmed by them."

Genentech said the drug would remain approved for use in combination with the chemotherapy drug paclitaxel for first-line treatment of metastatic HER2-negative breast cancer until the FDA makes a final decision.

"We are very disappointed by the committee's recommendation and hope the commissioner does not decide to remove this important medicine for women with an incurable disease who already have too few treatment options," said Hal Barron, Genentech's chief medical officer and head of global product development.

Avastin is designed to prevent new blood vessels from reaching tumors and providing them with the nutrients they feed on to grow. During the first clinical trial, when combined with Taxotere, the drug had stifled cancer progression and increased patient survival.

"We remain ready to collaborate with the FDA to find a solution that is in the best interest of patients who need Avastin," Barron added.

Roche could lose $1 billion in annual revenue if Avastin is taken off the market for breast cancer treatment, according to figures cited in the media.

European medical experts have called for the drug to be restricted to use in combination with paclitaxel only instead of other forms of chemotherapy because benefits were uncertain.

Related Stories

Recommended for you

Sensor-equipped pill raises technological, ethical questions

November 17, 2017
The first drug with a sensor embedded in a pill that alerts doctors when patients have taken their medications was approved by the Food and Drug Administration, raiding issues involving privacy, cost, and whether patients ...

New painkillers reduce overdose risk

November 16, 2017
Scientists on the Florida campus of The Scripps Research Institute (TSRI) have developed new opioid pain relievers that reduce pain on par with morphine but do not slow or stop breathing—the cause of opiate overdose.

Separating side effects could hold key for safer opioids

November 16, 2017
Opioid pain relievers can be extremely effective in relieving pain, but can carry a high risk of addiction and ultimately overdose when breathing is suppressed and stops. Scientists have discovered a way to separate these ...

US regulators approve first digital pill to track patients

November 14, 2017
U.S. regulators have approved the first drug with a sensor that alerts doctors when the medication has been taken, offering a new way of monitoring patients but also raising privacy concerns.

Introduction is different, but top medications for opioid addiction equally effective

November 14, 2017
With opioid addiction officially declared a public health emergency in the U.S., medical intervention to treat the illness is increasingly important in responding to the epidemic. Now, a new study concludes that two of the ...

Drugstore pain pills as effective as opioids in ER patients

November 7, 2017
Emergency rooms are where many patients are first introduced to powerful opioid painkillers, but what if doctors offered over-the-counter pills instead? A new study tested that approach on patients with broken bones and sprains ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.