Front-page headlines worldwide announced the “stunning” results of a trial of rosuvastatin (Crestor) in “apparently healthy men and women” with an LDL-cholesterol less than 130 mg/dL (3.4 mmol/L). Serious heart problems were reportedly reduced by about 50%.
“This takes prevention to a whole new level,” said Dr. W. Douglas Weaver, President of the American College of Cardiology (Washington Post 11/10/08).
The trial, called JUPITER (Justification for the Use of Statins in Prevention: an Intervention Trial Evaluating Rosuvastatin) was financially supported by AstraZeneca, the manufacturer of Crestor. It is not stated whether the trial was named before or after data were accumulated. The primary author, Paul Ridker, also is listed as a coinventor on patents for the use of inflammatory biomarkers, including the use of high sensitivity C-reactive protein (HS-CRP) in the evaluation of risk for cardiovascular disease.
The 17,802 subjects in the trial had an elevated HS-CRP of 2.0 mg/L or higher (Ridker PM, et al., N Engl J Med 2008;359:2195-2207).
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As the accompanying editorial noted, the absolute risk reduction was low. The number (percent) of “hard” outcomes (myocardial infarction, stroke, or death from cardiovascular causes) was reduced from 157 (1.8%) in the placebo to 83 (0.9%) in the rosuvastatin group. The number needed to treat was 120. The cost of the drug is $3.45 per day (or nearly $300,000 to prevent one adverse event).
Note that the trial evaluated statins, not HS-CRP testing. It did not compare subjects with and without high HS-CRP, nor compare the usefulness of HS-CRP with other risk factors (ibid.).
On the adverse side of the balance, subjects in the rosuvastatin group had significantly higher glycosylated hemoglobin levels and incidence of diabetes mellitus (3.0% vs. 2.4%) (ibid.) The trial was discontinued three years early, after only 1.9 years, thus cutting off the discovery of potential long-term adverse effects.
While not yet statistically significant, the rosuvastatin group had more muscle weakness and pain and more elevations in laboratory values indicating possible kidney or liver damage. One case of nonfatal rhabdomyolysis was reported in a rosuvastatin recipient after the trial was suspended. During a 4-week run-in period, anyone exhibiting compliance problems or adverse reactions could be screened out; 1,521 subjects were excluded during this period, in addition to the nearly 57,000 eliminated at the outset. Compliance rates during the trial were unusually low, with nearly 15% of the participants stopping their pills during each year, noted Sandy Szwarc, B.S.N., R.N.
What the JUPITER study really shows, remarks Duane Graveline, M.D., M.P.H., is that statins work by reducing inflammation, not by reducing cholesterol. This effect requires much lower doses, which have fewer side effects.
While rates of hospitalization for coronary heart disease have shown decreases since the mid-1980s, the rate for congestive heart failure has increased continually since 1980. From 2002-2006, the relative risk of hospitalization for heart failure was 1.37 times the rate in 1980-1984, according to research presented at the American Heart Association’s 2008 scientific session (Medical News Today 11/12/08).
Additional information:
- “The Failure of Vytorin and Statins to Improve Cardiovascular Health: Bad Cholesterol or Bad Theory?” by Brian Peskin, et al. J Am Phys Surg, Fall 2008.
- “Misleading Recent Papers on Statin Drugs in Peer-Reviewed Journals,” by Joel Kauffman, Ph.D., J Am Phys Surg, Spring 2007.
- “LDL Cholesterol: ‘Bad’ Cholesterol or Bad Science?” Anthony Colpo, J Am Phys Surg, Fall 2005.
