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Comparison of drug-releasing stents show similar safety outcomes after 2 years

Date:
March 31, 2014
Source:
The JAMA Network Journals
Summary:
A comparison of the safety of biodegradable polymer biolimus-eluting stents vs durable polymer everolimus-eluting stents finds similar outcomes for measures including death and heart attack after two years, according to a study.

A comparison of the safety of biodegradable polymer biolimus-eluting stents vs durable polymer everolimus-eluting stents finds similar outcomes for measures including death and heart attack after two years, according to a JAMA study released online to coincide with presentation at the 2014 American College of Cardiology Scientific Sessions.

Recent studies have raised concerns about the safety of biodegradable polymer drug-eluting stents (BP-DES) compared with durable polymer everolimus-eluting stents (DP-EES). The NOBORI Biolimus-Eluting vs XIENCE/PROMUS Everolimus-Eluting Stent Trial (NEXT) is a study evaluating the efficacy and safety of biodegradable polymer biolimus-eluting stents (BP-BES) vs. DP-EES. The primary efficacy outcome of target-lesion revascularization (restoration of blood flow in coronary arteries) at 1 year demonstrated noninferiority (not worse than) of BP-BES compared with DP-EES. However, the advantages of BP-BES could emerge beyond 1 year when polymer has fully degraded, according to background information in the article. Masahiro Natsuaki, M.D., of Saiseikai Fukuoka General Hospital, Fukuoka, Japan, and colleagues examined outcomes of this trial after two years.

Of 3,235 patients, 1,617 were randomly assigned to receive BP-BES and 1,618 to DP-EES. The researchers found that treatment outcomes with BP-BES were noninferior to DP-EES for death or heart attack (7.8 percent vs 7.7 percent, respectively) and target-lesion revascularization (TLR) (6.2 percent vs 6.0 percent). The rates of death or heart attack and TLR were not significantly different between the groups at 2 years.

"In NEXT, the safety and efficacy outcomes of BP-BES were noninferior to those of DP-EES at 2 years. However, 2 years is not long enough to confirm the long-term safety of BP-BES, and the study was underpowered for the interim analysis. Follow-up at 3 years will be important," the authors write.


Story Source:

The above story is based on materials provided by The JAMA Network Journals. Note: Materials may be edited for content and length.


Journal Reference:

  1. Masahiro Natsuaki, Ken Kozuma, Takeshi Morimoto, Hiroki Shiomi, Takeshi Kimura. Two-Year Outcome of a Randomized Trial Comparing Second-Generation Drug-Eluting Stents Using Biodegradable or Durable Polymer. JAMA, 2014; DOI: 10.1001/jama.2014.3584

Cite This Page:

The JAMA Network Journals. "Comparison of drug-releasing stents show similar safety outcomes after 2 years." ScienceDaily. ScienceDaily, 31 March 2014. <www.sciencedaily.com/releases/2014/03/140331114227.htm>.
The JAMA Network Journals. (2014, March 31). Comparison of drug-releasing stents show similar safety outcomes after 2 years. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2014/03/140331114227.htm
The JAMA Network Journals. "Comparison of drug-releasing stents show similar safety outcomes after 2 years." ScienceDaily. www.sciencedaily.com/releases/2014/03/140331114227.htm (accessed July 24, 2014).

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