New Anti-Clotting Drug May Cut Brain Bleeding Risk: Study

In continuation of my update on rivaroxaban (Xarelto)

In a new study, researchers led by Dr. Graeme Hankey, a neurologist at the Royal Perth Hospital and University of Western Australia, followed more than 14,000 people who took anti-clotting drugs for a median of two years. Of those patients, 136 had bleeding in the brain.

People who took a new anticoagulant called rivaroxaban (Xarelto) and suffered from the most common type of atrial fibrillation and didn't have heart valve damage were about one-third less likely to experience bleeding in the brain than those who took warfarin, the investigators found...

More...

Tocotrienol could help reduce stroke damage

In continuation of my update on the benefits of  Vitamin  E

Tocotrienol could help reduce stroke damage

FDA approves Pradaxa to prevent stroke in people with atrial fibrillation....

We knew that, Dabigatran (see structure, Pradaxa in Europe and USA, Pradax in Canada) is an anticoagulant from the class of the direct thrombin inhibitors. It is being studied for various clinical indications and in many cases it offers an alternative to warfarin as the preferred orally administered blood thinner since it does not require prothrombin time monitoring while offering similar results in terms of efficacy. It was developed by the pharmaceutical company Boehringer Ingelheim. Though it was approved in Europe in 2008, now FDA has approved the drug in October 2010 for the prevention of stroke and blood clots in patients with abnormal heart rhythm (atrial fibrillation).

Pradaxa is an anticoagulant that acts by inhibiting thrombin, an enzyme in the blood that is involved in blood clotting. The safety and efficacy of Pradaxa were studied in a clinical trial comparing Pradaxa with the anticoagulant warfarin. In the trial, patients taking Pradaxa had fewer strokes than those who took warfarin.

 "Unlike warfarin, which requires patients to undergo periodic monitoring with blood tests, such monitoring is not necessary for Pradaxa," Dr. Norman Stockbridge(director of the Division of Cardiovascular and Renal Products in the FDA's ) says.

Pradaxa, manufactured by Boehringer Ingelheim Pharmaceuticals Inc. of Ridgefield, Conn., will be available in 75 milligram and 150 milligram capsules....

Ref : http://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm230241.htm

Minocycline for stroke patients?

Minocycline hydrochloride, also known as minocycline (right structure), is a broad spectrum tetracycline antibiotic, and has a broader spectrum than the other members of the group. It is a bactriostatic antibiotic. As a result of its long half-life it generally has serum levels 2-4 times that of most other tetracyclines (150 mg giving 16 times the activity levels compared to 250 mg of tetracycline at 24–48 hours). It is primarily used to treat acne and other skin infections. Apart from the antibacterial activity, 'minocycline' is recognized as a DMARD (Disease-Modifying Anti-Rheumatic Drug) by the American College of Rheumatology, which recommends its use as a treatment for mild rheumatoid arthritis.

A recent study by the Dr. Cesar V. Borlongan (University of South Florida, USA) has lead to some interesting result, i.e., minocycline can be used to treat the stroke patients !. As per the claim by the researchers this drug might be a better option, when compared with the thrombolytic agent tPA (the only effective drug for acute ischemic stroke) and more over only 2 % of ischemic stroke patients benefit from this treatment due to its limited therapeutic window.

During a stroke, a clot prevents blood flow to parts of the brain, which can have wide ranging short-term and long-term implications. This study recorded the effect of intravenous minocycline in both isolated neurons and animal models after a stroke had been experimentally induced. At low doses it was found to have a neuroprotective effect on neurons by reducing apoptosis of neuronal cells and ameliorating behavioral deficits caused by stroke. The safety and therapeutic efficacy of low dose minocycline and its robust neuroprotective effects during acute ischemic stroke make it an appealing drug candidate for stroke therapy claims the researchers. Congrats for this interesting finding...

Ref : http://www.biomedcentral.com/1471-2202/10/126/abstract