Some 120 investigators and other experts in chronic myeloid leukemia (CML) from 15 countries revisited a sore topic within the biopharma industry recently when they decried the high price of drugs for CML, and by extension, treatments for all cancers.
Writing in the American Society of Hematology journal Blood, the experts said they were compelled to advocate for lower cancer drug prices as “a necessity to save the lives of patients who cannot afford them.”
“The current prices of CML drugs are too high, unsustainable, may compromise access of needy patients to highly effective therapy, and are harmful to the sustainability of our national healthcare systems,” the CML experts concluded.
“As physicians, we follow the Hippocratic Oath of ‘Primum non nocere’ first (or above all) do no harm. We believe the unsustainable drug prices in CML and cancer may be causing harm to patients,” they added in the April 25 article.
Experts focused on CML drugs since annual patient mortality has plunged from 10%–20% in the early 2000s, to just 2%. The estimated 10-year survival of CML patients has quadrupled from a decade ago, to more than 80% today. Credit rests with several oral tyrosine kinase inhibitors (TKIs), which allow patients to manage their disease with few symptoms.
Yet the price of newer approved CML treatments in the U.S. is substantially higher than older drugs.
“The free market competition is not working well,” the article’s corresponding author, Hagop Kantarjian, M.D., of MD Anderson Cancer Center, told GEN. “In the case of patented drugs, despite the availability of five to seven drugs for the same tumor indications, prices remain high.”
Asked why, Dr. Kantarjian said: “This may be explained by the gaming theory, which suggests possible collective collusive behavior that keeps prices high for long periods despite a competitive market.”
In contrast, the article cited one competitive market for cancer drugs—South Korea, where domestic drug developer Il-Yang Pharmaceutical sells Supect (radotinib) for $21,500 annually.
Free-market economics has also failed to deliver savings from generics, Dr. Kantarjian added. Prices have dropped so steeply, many companies fled the U.S.
Last year in the Journal of Clinical Oncology, Dr. Kantarjian cited that exodus among several reasons for generic-drug shortages. “Some form of pricing intervention needs to be implemented,” Dr. Kantarjian added.
That and other ideas will likely surface at a "Summit on Cancer Economics" set for October 10–11 in Washington, DC, as a follow-up to the article.
In advocating lower prices, the CML group hopes to repeat the success of Memorial Sloan-Kettering Cancer Center, where physicians refused to prescribe Zaltrap (ziv-aflibercept) for metastatic colorectal cancer due to its initial $11,000-per-month cost. When physicians raised the issue in The New York Times, Zaltrap developer Sanofi began offering 50% discounts while maintaining the official price.
Joshua P. Cohen, senior research fellow with the Tufts Center for the Study of Drug Development (CSSD), told GEN that several factors explain rising cancer drug prices.
“Many recent approvals are biologics, for which the regulatory pathway to biogenerics or biosimilars is still in its infancy. Once biosimilars become commonplace for biologics going off patent, we will see more market competition and lower prices,” Cohen said. That cannot happen, however, until FDA finalizes guidance on biosimilars it first proposed in February 2012.
Cohen noted federal and state legislative mandates prevent most U.S. payers from implementing the same formulary management they employ for nononcology drugs.
“This implies that payers in the US cover virtually all cancer drugs, and are required to do so in many instances,” he said. “Obviously, this limits their leverage in terms of pricing, and also restricts market competition.”
He added that many recent approvals form unique therapeutic classes, either by a new mechanism of action or novel therapeutic effect. “First-in-class medicines without follow-ons tend to be priced monopolistically,” Cohen said.
The report cited pricing for three CML treatments approved last year: A year’s supply of Pfizer’s Bosulif (bosutinib) costs about $118,000; Ariad Pharmaceuticals’ ponatinib, $138,000; and Teva Pharmaceutical’s Synribo (omacetaxine mepesuccinate), a monthly $28,000 for induction and $14,000 for maintenance. Several factors affect prices, including treatment length and lab monitoring or side effect-management costs.
Of two other CML treatments approved in the last decade, Bristol-Myers Squibb’s Sprycel® (dasatinib) costs $123,500 per year; Novartis’ Tasigna (nilotinib), $115,500 per year.
The first targeted CML treatment—Novartis’ Gleevec (imatinib mesylate), marketed as Glivec overseas—was priced at $30,000 for a year’s treatment when approved in 2001. That cost has more than doubled since. It now costs $76,000 a year.
Novartis has long defended the cost of its drug: "We agree with those who say the price we have set for Gleevec is high. But given all the factors, we believe it is a fair price," then-CEO Daniel Vasella wrote in his 2003 book about the drug, Magic Cancer Bullet.