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New Drug Update 2010-2011 Faculty Disclaimer - CME Conferences

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2 nd Annual Essentials in Primary Care<br />

Fall Conference<br />

Friday, November 11, <strong>2011</strong><br />

FDA Safety <strong>Update</strong> Simvastatin<br />

• Fifty-two patients (0.9%) in the 80-mg group versus one<br />

patient (0.02%) in the 20-mg group developed myopathy<br />

(defined as unexplained muscle weakness or pain with a<br />

serum CK >10 times the upper limit of normal [ULN]). This was<br />

higher than the labeled risk (based on clinical trial data) of<br />

0.53%.<br />

• Twenty-two patients (0.4%) in the 80-mg group versus no<br />

patient in the 20-mg group developed rhabdomyolysis<br />

(defined as unexplained muscle weakness or pain with serum<br />

CK >40 times ULN).<br />

• The risks for myopathy and rhabdomyolysis with simvastatin<br />

80 mg were highest in the first 12 months of treatment, 5 per<br />

1000 person-years and 2 per 1000 person-years, respectively,<br />

and decreased to 1 per 1000 person-years and 0.4 per 1000<br />

person-years after that.<br />

FDA Safety <strong>Update</strong> Simvastatin<br />

6-8-<strong>2011</strong> FDA Safety <strong>Update</strong><br />

• Based upon data from the SEARCH Trial the FDA is<br />

recommending limiting the use of the highest<br />

approved dose of the cholesterol-lowering<br />

medication, simvastatin (80 mg) because of<br />

increased risk of muscle damage.<br />

• Simvastatin 80 mg should be used only in patients<br />

who have been taking this dose for 12 months or<br />

more without evidence of muscle injury (myopathy).<br />

• Simvastatin 80 mg should not be started in new<br />

patients, including patients already taking lower<br />

doses of the drug.<br />

Wayne Weart<br />

<strong>New</strong> <strong>Drug</strong> <strong>Update</strong> Part I

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