Anidulafungin versus Fluconazole for Invasive Candidiasis
Annette C. Reboli, M.D., Coleman Rotstein, M.D., Peter G. Pappas, M.D., Stanley W. Chapman, M.D., Daniel H. Kett, M.D., Deepali Kumar, M.D., Robert Betts, M.D., Michele Wible, M.S., Beth P. Goldstein, Ph.D., Jennifer Schranz, M.D., David S. Krause, M.D., Thomas J. Walsh, M.D., for the Anidulafungin Study Group
Background Anidulafungin, a new echinocandin, has potent activityagainst candida species. We compared anidulafungin with fluconazolein a randomized, double-blind, noninferiority trial of treatmentfor invasive candidiasis.
Methods Adults with invasive candidiasis were randomly assignedto receive either intravenous anidulafungin or intravenous fluconazole.All patients could receive oral fluconazole after 10 days ofintravenous therapy. The primary efficacy analysis assessedthe global response (clinical and microbiologic) at the endof intravenous therapy in patients who had a positive baselineculture. Efficacy was also assessed at other time points.
Results Eighty-nine percent of the 245 patients in the primaryanalysis had candidemia only. Candida albicans was isolatedin 62% of the 245 patients. In vitro fluconazole resistancewas infrequent. Most of the patients (97%) did not have neutropenia.At the end of intravenous therapy, treatment was successfulin 75.6% of patients treated with anidulafungin, as comparedwith 60.2% of those treated with fluconazole (difference, 15.4percentage points; 95% confidence interval [CI], 3.9 to 27.0).The results were similar for other efficacy end points. Thestatistical analyses failed to show a "center effect"; whendata from the site enrolling the largest number of patientswere removed, success rates at the end of intravenous therapywere 73.2% in the anidulafungin group and 61.1% in the fluconazolegroup (difference, 12.1 percentage points; 95% CI, –1.1to 25.3). The frequency and types of adverse events were similarin the two groups. The rate of death from all causes was 31%in the fluconazole group and 23% in the anidulafungin group(P=0.13).
Conclusions Anidulafungin was shown to be noninferior to fluconazolein the treatment of invasive candidiasis. (ClinicalTrials.govnumber, NCT00056368
[ClinicalTrials.gov]
).
Source Information
From the University of Medicine and Dentistry of New Jersey–Robert Wood Johnson Medical School and Cooper University Hospital, Camden, NJ (A.C.R.); McMaster University, Hamilton Health Sciences, Hamilton, ON, Canada (C.R.); University of Alabama at Birmingham, Birmingham (P.G.P.); University of Mississippi, Jackson (S.W.C.); Miller School of Medicine at the University of Miami, Miami (D.H.K.); University of Toronto, University Health Network, Toronto (D.K.); University of Rochester, Rochester, NY (R.B.); Vicuron Pharmaceuticals, King of Prussia, PA (M.W., B.P.G., J.S., D.S.K.); the National Cancer Institute, Bethesda, MD (T.J.W.).
Address reprint requests to Dr. Reboli at the Division of Infectious Diseases, University of Medicine and Dentistry of New Jersey–Robert Wood Johnson Medical School, Cooper University Hospital, Education and Research Bldg., 401 Haddon Ave., Rm. 270, Camden, NJ 08103, or at reboli-annette{at}cooperhealth.edu.
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