"This book is incredibly complete and easy-to-understand for anybody. I certainly recommend it for patients who want to know more about atrial fibrillation than what they will learn from doctors...."

Pierre Jaïs, M.D. Professor of Cardiology, Haut-Lévêque Hospital, Bordeaux, France

"Dear Steve, I saw a patient this morning with your book [in hand] and highlights throughout. She loves it and finds it very useful to help her in dealing with atrial fibrillation."

Dr. Wilber Su Cavanaugh Heart Center, Phoenix, AZ

"Your book [Beat Your A-Fib] is the quintessential most important guide not only for the individual experiencing atrial fibrillation and his family, but also for primary physicians, and cardiologists."

Jane-Alexandra Krehbiel, nurse, blogger and author "Rational Preparedness: A Primer to Preparedness"


"Steve Ryan's summaries of the Boston A-Fib Symposium are terrific. Steve has the ability to synthesize and communicate accurately in clear and simple terms the essence of complex subjects. This is an exceptional skill and a great service to patients with atrial fibrillation."

Dr. Jeremy Ruskin of Mass. General Hospital and Harvard Medical School

"I love your [A-fib.com] website, Patti and Steve! An excellent resource for anybody seeking credible science on atrial fibrillation plus compelling real-life stories from others living with A-Fib. Congratulations…"

Carolyn Thomas, blogger and heart attack survivor; MyHeartSisters.org

"Steve, your website was so helpful. Thank you! After two ablations I am now A-fib free. You are a great help to a lot of people, keep up the good work."

Terry Traver, former A-Fib patient

"If you want to do some research on AF go to A-Fib.com by Steve Ryan, this site was a big help to me, and helped me be free of AF."

Roy Salmon Patient, A-Fib Free; pacemakerclub.com, Sept. 2013

New Novel Anticoagulant Edoxaban: How Does it Compare to Other Blood Thinners?

Edoxaban label - Edoxaban marketed as Savaysa in North America

Edoxaban marketed as Savaysa in North America

FDA approved in January 2015, the anti-clotting drug edoxaban (brand names Savaysa and Lixiana) is the fourth novel anticoagulant (NOAC) developed as an alternative to the blood thinner warfarin (Coumadin). The others are apixaban (Eliquis), dabigatran (Pradaxa) and rivaroxaban (Xarelto).

Because edoxaban is so new, we don’t have much ‘real world’ data and can only look at the data from the clinical trial. Edoxaban is available by prescription in two dosages: 60 mg once daily and 30 mg once daily.

Prevention of stroke: The higher dose of edoxaban (60 mg once daily) was as good as and tended to be better than warfarin in preventing stroke. But the lower dose (30 mg once daily) wasn’t as effective as warfarin.

Stomach bleeding: All anticoagulants cause bleeding. That’s how they work. With the higher dose of edoxaban, bleeding from the stomach was greater than with warfarin. But with the lower dose of edoxaban, bleeding was lower than with warfarin.

Kidney clearance: Edoxaban is 35% cleared by the kidneys (as compared to 25% for apixaban [Eliquis] and 80% for dabigatran [Pradaxa]). This means if your kidneys are working well (creatine clearance greater than 95ml/min), you probably shouldn’t be taking edoxaban, because your kidneys are taking it out of your body too quickly. This puts you at greater a risk of stroke than those patients taking warfarin.

No Head-To-Head Clinical Tests

Unfortunately, there haven’t been any head-to-head clinical tests comparing edoxaban with the other novel anticoagulants (NOACs). In fact, drug manufacturers have only tested their products against the standard treatment of warfarin (Coumadin).

Safety Data for Edoxaban

Edoxaban is so new we don’t have a real-world safety score yet. But in the clinical trial, stomach bleeding was greater with the higher dose than warfarin. (The lower dose edoxaban is irrelevant because it didn’t work as well as warfarin.)

The Bottom Line for Edoxaban

The limited data about edoxaban in unimpressive. As you know, I’m not a medical doctor. So if you are seeking an alternative to warfarin, talk to your doctor. If I were you, I’d skip edoxaban for now and consider apixaban (Eliquis) instead.

To date, Eliquis is the only novel anticoagulant (NOAC) that can claim that survival improved with its use compared to warfarin. Eliquis was unique in that bleeding from other sites including the stomach, bowels, and bladder was less. Eliquis earned the best safety score from the FDA Adverse Event Reporting System compared to Pradaxa, Xarelto and warfarin. For more, see Warfarin vs. Pradaxa and the Other New Anticoagulants.

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