FDA Approves Avastin For Breast Cancer
This decision could represent a major shift in standards for assessing the effectiveness of cancer meds. In granting approval, the FDA rejected the recommendation of its advisory panel, which last December voted 5-4 against the drug, because the benefit in slowing tumor growth wasn’t believed to be worth the added risk of serious side effects, including high blood pressure and death.
At issue was whether slowing tumor growth - known as progfession-free survival - for an additional 5-1/2 months in metastatic breast cancer merits approval, even though Avastin wasn’t shown to extend life. The question, of course, resonates far beyond any one drug as the agency grapples with increasingly vocal cancer patients and their advocates, who insist any benefit is important.
For drugmakers, the approval is an important signal, because it can be expensive to conduct the lengthy trials needed to prove a drug can extend life. The approval also bolsters an industry tactic called label expansion, which is used to squeeze additional revenue out of a medication. In the case of Avastin, which is already approved to treat colon and lung cancer, Genentech may reap an additional $1.3 billion a year in revenue.
“We felt this is an effective drug for breast cancer,” Richard Pazdur, director of the agency’s Office of Oncology Drugs, tells Bloomberg News, adding that the FDA still believes survival is the “gold standard” for cancer drugs, and if further Avastin studies don’t demonstrate a benefit, the agency may require another advisory panel.
The FDA’s decision may now open the door for other cancer meds to be approved if studies find the meds can shrink tumors, although some docs worry patients may not really benefit. “If FDA sets a precedent of approving a drug based on progression free survival, people are afraid they may stop looking at survival as the most important endpoint,” Kay Dickersin, director of the Center for Clinical Trials at Johns Hopkins University, tells the Associated Press.
“The FDA has lowered the bar on the approval of breast cancer therapies. At a time when many questions are being raised about how the FDA approves drugs for market, today’s decision is a victory for drug companies, but not for patients,” Breast Cancer Action executive director Barbara Brenner says in a statement headlined ‘Patients Lose, Genentech Wins.’
Another patient advocate disagrees. “The benefits we’re looking at with Avastin matter because they give patients hope,” Margaret Kirk, president of Y-Me Breast Cancer Organization. “Without disease progression they may survive to see a discovery that can help them in the future.” But what do you think?
Was the FDA correct to approve Avastin to treat breast cancer?
- No (58%, 96 Votes)
- Yes (42%, 70 Votes)
Total Voters: 166









