Erratum to: Adv Ther (2011) 28(5):351–366 DOI 10.1007/s12325-011-0019-z

Two errors were reported in the above article. A superscript was missing in Table 1 in the first column entry on page 357 which incompletely suggested that a NNT of 11.1 was based on the ITT population, when it should have indicated the ITT subpopulation with an early and/or on time day 180 visit. Subsequently, the main text page 358 should have qualified the NNT of 11.1 by stating this result pertained to the ITT subpopulation with an early and/or on time day 180 visit. Also, the response rate attributed to the Dex DDS sham arm which is 12% in the last column of Table 1, page 356, should be 17%, with a superscript specifying the early and/or on time 180 day visit cohort.