Spending on diabetes drugs in the United States reached $53.7 billion last year, more than double what it was in 2013. The number of prescriptions in that time rose 18 %, to 227 million, according to data from industry researcher IQVIA.
In San Francisco, Inkinen got his startling diagnosis: He was pre-diabetic even as he set records in endurance sports (in 2014 he and his wife rowed across the Pacific Ocean, from California to Hawaii, he said on his blog: 2,750 miles in 45 days and 3 hours, setting a speed world record for two people.)
His solution? The ketogenic diet, a high-fat, low-carbohydrate way of eating that's enraptured many in Silicon Valley. "There is a way to reduce insulin resistance without exercise, without dieting or without bariatric surgery, using the traditional ketosis," Inkinen told CNBC. "But to deliver this type of treatment, you would need technology and the ability to continuously monitor and deliver care."
Inkinen's online real estate information company, Trulia, was sold in 2014 to Zillow for $3.5 billion. So naturally, the next step for Inkinen was to start a new company. He teamed with a doctor and a scientist, Stephen Phinney and Jeff Volek, and founded Virta Health. Virta connects patients virtually with doctors and coaches who help tailor the ketogenic diet to their lifestyles and monitor certain biomarkers daily.
In a trial of about 260 patients, published last year in JMIR Diabetes, Virta's treatment led to reductions in blood glucose, weight and use of diabetes medication after 10 weeks. After a year A1C levels were down an average of 1.3 %, diabetes medication usage was down 48 percent, and body weight was down12 %.
To cardiologist Ethan Weiss, who sits on Virta's scientific advisory board, the outcomes are strong enough to recommend the program to his patients. "For people with type 2 diabetes headed toward bariatric surgery, to have this result, that they're coming off almost all insulin, coming down on almost all other diabetes medicines, losing weight, feeling like they control their diet, I think it's an awesome thing to recommend," said Weiss, an associate professor of medicine at the University of California San Francisco. While most of the metrics move dramatically in the right direction — Inkinen says 60 percent of patients see their diabetes reversed in a span of between 2 and 9 months — Weiss notes one data point that may not. Levels of LDL, or so-called bad cholesterol, appear to rise on the ketogenic diet. But he notes a distinction in the type of LDL that goes up, saying it may not be the type that leads to clogged arteries. And he says LDL levels can be controlled with drugs called statins, like Lipitor, if that's a concern (though he said to him it's not).
Virta's program, which costs $370 a month after a $500 initiation fee if patients pay out of pocket, also saves money, according to Inkinen, who estimates an average savings of $9,600 per patient in the first 24 months in drug and medical costs. After the first year the cost drops to $199 a month.
The company is working to expand to more coverage from insurers and employers, with the goal of reversing diabetes in 100 million people by 2025. That's about the number of Americans with diabetes or prediabetes, according to the Centers for Disease Control and Prevention.
As usage — and costs — of diabetes medicines rise, both Geisinger and Virta are showing that food, along with a healthy dose of education and support, can go a long way in changing the course of this disease.
In Shamokin, Pennsylvania, about 75 miles northwest of Allentown, Geisinger Health System is trying something new for some of its diabetes patients. Instead of relying solely on drugs to manage the disease, doctors are writing prescriptions for certain patients to enter its Fresh Food Farmacy program: 15 hours of education about diabetes and healthier living, followed by 10 free nutritious meals a week for participants and their families.
"In health care we spend an awful lot on drugs and devices because it's business," said Dr. Andrea Feinberg, Geisinger's medical director of health and wellness. "But we spend a very small amount on preventive medicine. … It's sort of like we're upside down and backward."
The program targets people with diabetes and food insecurity, those for whom it's not always clear where the next meal will come from. "We understand the relationship of food insecurity & the impact that poverty has on developing certain lifestyle conditions, like type 2 diabetes," Feinberg said. She added that the goal is "to diminish complications of diabetes and also close the meal gap to end hunger."
The program, started 18 months ago, is a partnership with the Pennsylvania Food Bank. So far, it's enrolled 150 patients, feeding a total of about 450 people a week.
Food as a specialty drug for diabetes and the heart
Rita Perkins, her husband and 3 grandchildren who live with them are among those families. For Perkins the program has been transformative. Each week, she visits the Farmacy and picks out food with guidance from a nutritionist. Perkins said the food, along with what she learned in the course about managing diabetes, has changed not just her approach to eating but also her family's. "Before, I'd never buy this stuff; I would never buy fresh fruit," Perkins recalled. "Money was tight. And now since I get this stuff for free, I can put it on the table for the kids." Since she started the program, Perkins said her weight has dropped to 134 from 179. She walks all over town and said her doctors are evaluating the doses of her diabetes medications. Her blood sugar, measured by an A1C test, has been a steady 5.8 % for the last 6 months (normal A1C, according to the National Institutes of Health, is below 5.7 %).
On average, patients in the program have seen their A1C levels drop from a pre-enrollment level of 9.6 % to 7.5 %, Feinberg & colleagues wrote in an April article in NEJM Catalyst that they called "Prescribing Food as a Specialty Drug."
"Clinically, we see great outcomes," Feinberg told CNBC. "The impact is that we really know long-term that we'll see a decrease in incidence of heart disease, the No. 1 killer here in the United States, because if you improve the diabetes, improve your cardiac risk factors, you have less heart disease as well."
The program also should save money. With operational costs of $2,400 per patient each year, early findings show costs for patients in Geisinger Health Plan dropped by 80 %: from an average of $240,000 per member per year, to $48,000 per member per year.
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