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viernes, 20 de octubre de 2017
Cascade of costs could push new gene therapy above $1 million per patient
Outrage over the high cost of cancer care has focused on skyrocketing drug prices, including the $475,000 price tag for the country's first gene therapy,Novartis' Kymriah, a leukemia treatmentapproved in August.
But the total costs of Kymriah and the21 similar drugsin development — known as CAR T-cell therapies — will be far higher than many have imagined, reaching $1 million or more per patient, according to leading cancer experts. The next CAR T-cell drug could be approved as soon as November.
Although Kymriah's price tag has "shattered oncology drug pricing norms," said Leonard Saltz, chief of gastrointestinal oncology at Memorial Sloan Kettering Cancer Center in New York, "the sticker price is just the starting point."
These therapies lead to a cascade of costs, propelled by serious side effects that require sophisticated management, Saltz said. For this class of drugs, Saltz advised consumers to "think of the $475,000 as parts, not labor."
Dr. Hagop Kantarjian, a leukemia specialist and professor at the University of Texas MD Anderson Cancer Center, estimates Kymriah's total cost could reach $1.5 million.
CAR T-cell therapy is expensive because of the unique way that it works. Doctors harvest patients' immune cells, genetically alter them to rev up their ability to fight cancer, then reinfuse them into patients.
Taking the brakes off the immune system, Kantarjian said, can lead to life-threatening complications that require lengthy hospitalizations and expensive medications, which are prescribed in addition to conventional cancer therapy, rather than in place of it.
Dr. Keith Eaton, a Seattle oncologist, said he ran up medical bills of $500,000 when he participated in a clinical trial of CAR T cells in 2013, even though all patients in the study received the medication for free. Eaton, who suffered from leukemia, spent nearly two months in the hospital.
The cytokine storm felt like "the worst flu of your life," said Eaton, now 51. His fever spiked so high that a hospital nurse assumed the thermometer was broken. Eaton replied, "It's not broken. My temperature is too high to register on the thermometer."
Although Eaton recovered, he wasn't done with treatment. His doctors recommended a bone-marrow transplant, another harrowing procedure, at a cost of hundreds of thousands of dollars.
Eaton said he feels fortunate to be healthy today, with tests showing no evidence of leukemia. His insurer paid for almost everything.
Kymriah's sticker price is especially "outrageous" given its relatively low manufacturing costs, said Dr. Walid Gellad, co-director of the Center for Pharmaceutical Policy and Prescribing at the University of Pittsburgh.
The gene therapy process used to create Kymriah costs about $15,000, according to a 2012 presentation by Dr. Carl June, who pioneered CAR T-cell research at the University of Pennsylvania. June could not be reached for comment.
To quell unrest about price, Novartis has offered patients and insurers a new twist on the money-back guarantee.
Novartis will charge for the drug only if patients go intoremissionwithin one month of treatment. In a keyclinical trial, 83 percent of the children and young adults treated with Kymriah went into remission within three months. Novartis calls the plan "outcomes-based pricing."
Novartis is "working through the specific details" of how the pricing plan will affect the Centers for Medicare & Medicaid Services, which pays for care for many cancer patients, company spokeswoman Julie Masow said. "There are many hurdles" to this type of pricing plan but, Masow said, "Novartis is committed to making this happen."
Masow said that Kymriah's manufacturing costs are much higher than $15,000, although she didn't cite a specific dollar amount. She noted that Novartis has invested heavily in the technology, designing "an innovative manufacturing facility and process specifically for cellular therapies."
As for Kymriah-related hospital and medication charges, "costs will vary from patient to patient and treatment center to treatment center, based on the level of care each patient requires," Masow said. "Kymriah is a one-time treatment that has shown remarkable early, deep and durable responses in these children who are very sick and often out of options."
Some doctors said Kymriah, which could be used by about 600 patients a year, offers an incalculable benefit for desperately ill young people. Kymriah isapprovedfor children and young adults with a type of acute lymphoblastic leukemia and already have been treated with at least two other cancer therapies.
"A kid's life is priceless," said Dr. Michelle Hermiston, director of pediatric immunotherapy at UCSF Benioff Children's Hospital San Francisco. "Any given kid has the potential to make financial impacts over a lifetime that far outweigh the cost of their cure. From this perspective, every child in my mind deserves the best curative therapy we can offer."
Other cancer doctors say the Novartis plan is no bargain.
About36 percent of patientswho go into remission with Kymriah relapse within one year, said Dr. Vinay Prasad, an assistant professor of medicine at Oregon Health & Science University. Many of these patients will need additional treatment, said Prasad, who wrote an editorial about Kymriah's price Oct. 4 inNature.
Dr. Steve Miller, chief medical officer for Express Scripts, a pharmacy benefit manager, said it would be more fair to judge Kymriah's success after six months of treatment, rather than one month. Prasad goes even further. He said Novartis should issue refunds for any patient whose leukemia relapses within three years.
A consumer advocate group calledPatients for Affordable Drugsalso has said that Kymriah costs too much, given that the federal government spent more than$200 millionover two decades to support the basic research into CAR T-cell therapy, long before Novartis bought the rights.
Rep. Lloyd Doggett, D-Texas,wrote a letterto the Medicare program's director last month asking for details on how the Novartis payment deal will work.
"As Big Pharma continues to put price gouging before patient access, companies will point more and more proudly at their pricing agreements," Doggett wrote. "But taxpayers deserve to know more about how these agreements will work — whether they will actually save the government money, defray these massive costs, and ensure that they can access life-saving medications."
This article was reprinted fromkhn.orgwith permission from the Henry J. Kaiser Family Foundation. Kaiser Health News, an editorially independent news service, is a program of the Kaiser Family Foundation, a nonpartisan health care policy research organization unaffiliated with Kaiser Permanente.
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