efficacy efficacy  /ˈɛ fɪ ˌkæ si/


  • (n) capacity or power to produce a desired effect


  1. In the efficacy group, 52% responded to Celexa vs.
  2. True, studies about the efficacy of female condoms are inconclusive.


  1. Teva and Active Biotech Report Positive Results from Phase IIa Study of Laquinimod in Active Lupus Nephritis

    Teva Pharmaceutical Industries Ltd. and Active Biotech announced today the results of a Phase IIa study of oral laquinimod designed to assess safety, tolerability and clinical efficacy in patients with active lupus nephritis, one of the most serious manifestations of systemic lupus erythematosus that can lead to chronic kidney failure1.
    on June 12, 2013     Source: Business Wire via Yahoo! Finance

  2. Bristol-Myers' ORENCIA Shows Efficacy In Rheumatoid Arthritis

    Bristol-Myers' ORENCIA Shows Efficacy In Rheumatoid Arthritis
    on June 12, 2013     Source: Nasdaq

  3. ORENCIA® (abatacept) Shows Comparable Efficacy to Humira® (adalimumab) in Year Two Data from Head-to-Head Study in ...

    PARIS, June 11, 2013 /PRNewswire/ -- AMPLE Study results highlighted during a press conference at the European League Against Rheumatism (EULAR) Annual congress Year 2 data shows similar efficacy between ...
    on June 12, 2013     Source: PR Newswire via Yahoo! Finance


  1. "I now believe that if gay men and lesbians served openly in the United States military, they would not undermine the efficacy of the armed forces," wrote Gen. John Shalikashvili, former chairman of the Joint Chiefs of Staff, in January 2007.
    on Jun 30, 2010 By: John Shalikashvili Source: Central Florida Future

  2. "It's an impossible pathway to understand at an agency tasked with a mission that is to prove safety and efficacy," said Burr, adding that could keep any new reduced-harm tobacco product from coming on the market.
    on Jul 16, 2007 By: Richard Burr Source: Forbes

  3. "The Americans flubbed it," Berenbaum said. "The bombing could have weakened the infrastructure and made it more difficult to kill with the efficacy with which they killed."
    on Jan 11, 2008 By: Michael Berenbaum Source: Guardian Unlimited

Word of the Day
tacit tacit
/ˈtæ sɪt /