Affymax Prepares to Mount Challenge to Amgen Anemia Drug Monopoly

Affymax shocked the world when an FDA advisory committee recommended last month that its anemia drug was good enough to earn a spot on the U.S. market. Now the Palo Alto, CA-based company (NASDAQ: [[ticker:AFFY]]) is making all sorts of moves behind the scenes that will determine how big a bite it will take out of Thousand Oaks, CA-based Amgen’s multi-billion dollar anemia drug monopoly.

Decisions about the product’s price, who to hire to sell it, and how to negotiate with Medicare and dialysis clinics are all high on the list of tasks facing the Affymax executive team. It’s part of the process of getting ready for March 27, the deadline the FDA has to complete its review of peginesatide, the experimental anemia drug from Affymax and its partner, Takeda Pharmaceuticals. If Affymax can get the green light from the FDA, it will be allowed to sell its product to about 400,000 patients in the U.S. on dialysis treatment, and tap into a market that generated $2.5 billion in sales last year for Amgen’s epoetin alfa (Epogen.)

Medicare has spent tens of billions of dollars on Amgen anemia products over the years, and members of Congress at various points have been critical of how much taxpayer money goes to one company making one drug.

“I don’t want to say there’s pent-up demand, but there’s a lot of interest in the renal community,” in the new product, says Affymax CEO John Orwin. Without disclosing the price, he suggested that Affymax plans to offer a lower-cost alternative. “Healthcare providers are under a lot of pressure to find overall cost-lowering solutions. So we think we’re coming into a favorable environment.”

Given the FDA advisory panel’s lopsided 15-1 vote in favor of its drug, the odds are Affymax will soon be in position to start selling the first alternative to Amgen’s epoetin alfa (Epogen), which has had a monopoly since it was first cleared for sale in 1989. The FDA previously approved a rival from Roche called epoetin beta (Mircera) in 2007, but that drug has been blocked from the U.S. market, at least until mid-2014, because of an intellectual property dispute that Amgen won. Affymax is able to sidestep that minefield because its drug helps stimulate production of oxygen-carrying red blood cells, like Amgen’s, but it is a peptide that is chemically distinct, and works through a different biological mechanism.

Even though Affymax will likely be in position to sell its product soon, it is a classic underdog in this story. Amgen (NASDAQ: [[ticker:AMGN]]), the world’s biggest biotech company, has contracts in place to provide its anemia drug to Fresenius Medical Care and DaVita, which together control about 70 percent of the dialysis market, analyst Christopher Raymond of Robert W. Baird said in a December 28 note to clients.

Raymond rates Affymax a “buy” with a price target of $13, but he sees many obstacles ahead. Small biotechs often

Author: Luke Timmerman

Luke is an award-winning journalist specializing in life sciences. He has served as national biotechnology editor for Xconomy and national biotechnology reporter for Bloomberg News. Luke got started covering life sciences at The Seattle Times, where he was the lead reporter on an investigation of doctors who leaked confidential information about clinical trials to investors. The story won the Scripps Howard National Journalism Award and several other national prizes. Luke holds a bachelor’s degree in journalism from the University of Wisconsin-Madison, and during the 2005-2006 academic year, he was a Knight Science Journalism Fellow at MIT.