The Navigator - Navigenics Blog

Genetic insights into health and wellness

All posts from July, 2010

July 27, 2010

Working with regulators—the road ahead

Posted 09:01 AM PDT

imageValidity. Accuracy and quality. Clinical relevance. Security and privacy. These were among the top themes highlighted over and over when federal officials convened a series of meetings and hearings last week in the Washington D.C. area to discuss the prospects for personal genomics services and other innovative types of health-related tests.

For long-time readers of this blog, these ideas are nothing new. When Navigenics launched its personal genome service more than two years ago, we issued a 10-point proposal for a set of industry standards to ensure the integrity of this new field of science and health and safeguard consumers. We reiterated the need for these principles again early last year, when we helped the Personalized Medicine Coalition convene a meeting on standards for personal genomics services.

So when last week’s events kicked off with a two-day meeting called by the U.S. Food and Drug Administration, we were pleased that the need for industry standards has been acknowledged at a high level. At the gathering of experts in health, genetics, science, and the law, many good points were raised and excellent ideas exchanged. Navigenics was among a group of leading personal genetics companies that presented a company overview to the gathering, and our CEO, Vance Vanier, M.D., was the only executive from a personal genomics service given the opportunity to speak on a panel. In its inclusiveness, broad discussion, and scientific rigor, the FDA meeting reflected the type of approach and expertise that will be required to develop effective standards for personal genomics.

The next day, however, saw a very different – and less productive – atmosphere come to light. On Capitol Hill, a subcommittee of the House of Representatives’ Committee on Energy and Commerce held a hearing on “Direct-To-Consumer Genetic Testing and the Consequences to the Public Health.” A key part of this hearing was a report by the Government Accountability Office, or GAO, on 15 personal genetic testing companies.

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Categories: About Navigenics, Policy

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July 14, 2010

Taking some of the guesswork out of warfarin

Posted 02:00 PM PDT

imageIt’s one of the more common prescription drugs, but until you need warfarin, you may have never heard of it. Sold under brand names including Coumadin® and Waran®, this blood thinner is prescribed millions of times a year in the United States to help treat or prevent blood clots. If you are undergoing major surgery, or experiencing conditions such as an irregular heartbeat or DVT (deep vein thrombosis), your doctor is likely to prescribe warfarin or another blood thinner.

But even though warfarin is common, it isn’t always easy to use. Finding the right dose for any one person is tricky, and the process often begins with trial and error. Too little of the drug, and a person can still experience a dangerous blood clot. Too much warfarin, and a person can suffer hazardous bouts of uncontrolled bleeding. Some of this individual response depends on personal genetics. Safe, effective warfarin use requires carefully calculated personalized dosing, and personal genetic information can be a helpful part of that equation.

At Navigenics, we recently launched a new Medications service, which provides personalized genetic information to help you understand which prescription drugs may work best for you. Warfarin is one of 12 medications analyzed in this feature of our service. The warfarin-related genetic results we provide can be used by your doctor to help calculate an individualized warfarin dose, using tools such as the calculator provided by www.WarfarinDosing.org.

This week, we enhanced our warfarin results further by providing an even more specific explanation of what they mean for personal warfarin dosing. 

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Categories: Medication responses we analyze, Warfarin sensitivity

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