Navigation Links
FDA Will Wait for Trial Results on Vytorin
Date:1/25/2008

Early findings saw no medical benefit; heart expert calls it 'second-line' medication

FRIDAY, Jan. 25 (HealthDay News) -- The controversy surrounding the highly promoted cholesterol-lowering drug Vytorin continued Friday when U.S. health officials said they would review the medication's effectiveness, but only after final trial results were completed.

The debate began earlier this month when preliminary results of the so-called Enhance trial showed that Vytorin -- a combination of two cholesterol drugs -- had little medical benefit.

"We have not yet received a final study report and can't explain why Vytorin didn't lead to lesser amounts of plaque compared to patients treated with simvastatin alone," Dr. John Jenkins, director of the FDA's Office of New Drugs, Center for Drug Evaluation and Research, said during an afternoon teleconference.

A study released Jan. 14 by the makers of Vytorin found that the drug -- a combination of the Zocor (simvastatin) and Zetia (ezetimibe) -- may be no more effective at reducing the build-up of plaque in the arteries than Zocor alone. About 60 percent of U.S. patients who are taking Zetia now receive the drug as part of Vytorin.

The FDA expects to receive the final report on Vytorin in the next several months, Jenkins said.

"Once we receive the final study report, we estimate it will take as long as six months for us to fully evaluate the results of the Enhance study," he said. "And we will be considering whether any further action is warranted in regard to Zetia or Vytorin, and also whether this study has any impact on our approach to the approval of lipid-lowering drugs."

The Enhance trial found that although cholesterol was lowered, the pace at which artery-clogging plaques formed within vessels almost doubled in patients taking Vytorin, compared to those taking Zocor alone.

The FDA noted the trial was not designed to detect any difference in risk of heart attack or stroke between the two treatments.

Jenkins said another ongoing trial will evaluate the effect of Vytorin compared with Zocor on heart disease and stroke. Results from this trial will be available in 2011, he said.

Merck/Schering-Plough Pharmaceuticals, the makers of Zetia and Vytorin, have been criticized for not releasing the Enhance test results earlier.

"While the Enhance trial was time-consuming and took longer than originally anticipated to complete, our companies acted with integrity and good faith in connection with the trial," Thomas Koestler, president of the Schering-Plough Research Institute, said in a prepared statement released Friday.

Dr. Harlan M. Krumholz, a professor of medicine at Yale University School of Medicine, said the FDA is right to wait until all the results from the Enhance trial are in. But in the meantime, he said, Vytorin and Zetia should be limited to patients who can't tolerate cholesterol-lowering drugs called statins, such as Lipitor.

"We have enough information from Enhance to say it is not providing much evidence that this drug is delaying the progression of atherosclerosis," he said. "It raises uncertainty whether this drug produces benefits for actual patients."

"This [Vytorin] is really a second-line drug," Krumholz said. "We really should be guided by evidence, not marketing, and the evidence is really strong for statins. If lifestyles aren't sufficient to lower cholesterol, the next place they should go is statins. Only after those have failed should you go to the next step," he added, referring to Vytorin.

More information

For more information on lowering cholesterol, visit the American Heart Association.



SOURCES: Harlan M. Krumholz, M.D., professor, medicine, Yale University School of Medicine, New Haven, Conn.; Jan. 25, 2008, teleconference with John Jenkins, M.D., director, Office of New Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration; Jan. 25, 2008, Merck/Schering-Plough Pharmaceuticals, news release


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Anti-Clotting Drug Trial Shortened by Bleeding Problems
2. Malaria Vaccine Shows Promise in Small Trial
3. Debate over safety of gene therapy trials focuses on issue of informed consent
4. Immunosyn Announces the Successful Completion of First Phase Proof of Concept Trial in Europe for Treatment of Diabetic Ulcers With Biopharmeceutical SF-1019
5. MAP Pharmaceuticals Reaches Agreement with FDA on Special Protocol Assessment for MAP0004 Phase 3 Clinical Trial in Patients With Migraine
6. Black Americans Still Wary of Clinical Trials
7. Vaccines for Ovarian and Breast Cancer in Early Trials
8. Industrial Solvent May Increase Risk for Parkinsonism
9. Industrial Solvent May Increase Risk for Parkinsons Disease
10. Cadence Pharmaceuticals Announces Topline Results of Two Phase III Clinical Trials of Acetavance(TM)
11. New study: US ranks last among other industrialized nations on preventable deaths
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
FDA Will Wait for Trial Results on Vytorin
(Date:6/24/2016)... Diego, CA (PRWEB) , ... June 24, 2016 , ... ... with the American Cancer Society and the Road To Recovery® program to drive cancer ... to seniors and other adults to ensure the highest quality of life and ongoing ...
(Date:6/24/2016)... ... June 24, 2016 , ... People across the U.S. are sharpening their pencils ... an essay contest in which patients and their families pay tribute to a genetic ... 2016 National Society of Genetic Counselors (NSGC) Annual Education Conference (AEC) this September. ...
(Date:6/24/2016)... , ... June 24, 2016 , ... ... is proud to recognize Dr. Barry M. Weintraub as a prominent plastic surgeon ... beautiful women in the world, and the most handsome men, look naturally attractive. ...
(Date:6/24/2016)... ... June 24, 2016 , ... ... the Frederick area economy by obtaining investment capital for emerging technology companies. ... years that have already resulted in more than a million dollars of capital ...
(Date:6/24/2016)... ... June 24, 2016 , ... Venture Construction Group (VCG) sponsors Luke’s ... June 20th at the Woodmont Country Club at 1201 Rockville Pike, Rockville, Maryland, 20852. ... helping service members that have been wounded in battle and their families. Venture Construction ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016  Guerbet announced today that ... Supplier Horizon Award . One of ... was recognized for its support of Premier members through ... clinical excellence, and commitment to lower costs. ... this recognition of our outstanding customer service from Premier," ...
(Date:6/23/2016)... Research and Markets has announced the addition ... States, China, Japan, Brazil, United Kingdom, Germany, France, Italy, ... Surgical Procedure Volumes: Global ... surgical procedure volume data in a geographic context. The ... of growth drivers and inhibitors, including world population growth, ...
(Date:6/23/2016)... NEW YORK , June 23, 2016 ... rough waters, but it continues to present great opportunities ... featured companies for today: Intrexon Corp. (NYSE: ... ), Arena Pharmaceuticals Inc. (NASDAQ: ARNA ), ... Learn more about these stocks and receive your complimentary ...
Breaking Medicine Technology: