Affiliation:
1. MARISEL SEGARRA-NEWNHAM PharmD MPH FCCP BCPS, Clinical Pharmacy Specialist in Infectious Diseases, Veterans Affairs Medical Center, West Palm Beach, FL
2. CHRISTINA COAKLEY PharmD, at time of writing, PGY1 Pharmacy Resident; now, PGY2 Cardiology Pharmacy Resident, Veterans Affairs Medical Center, West Palm Beach
Abstract
Objective: To review salvage options for Helicobacter pylori eradication regimens during a tetracycline backorder for patients with triple-therapy failure. Data Sources: A search of PubMed (1980-June 2012) was conducted using a combination of the terms H. pylori or Helicobacter pylori, salvage therapy, and eradication or treatment as text word searches. Study Selection and Data Extraction: Clinical trials and meta-analyses published in English were included. A manual review of the bibliographies of available literature was conducted and relevant articles were reviewed for inclusion. Data Synthesis: Treatment of H. pylori consists of a triple-drug regimen that includes a proton pump inhibitor (PPI), amoxicillin or metronidazole, and clarithromycin. Failure with this therapy is becoming increasingly common due to macrolide resistance. Upon failure with this regimen, it is recommended that a quadruple regimen with bismuth subsalicylate, metronidazole, tetracycline, and a histamine2 receptor antagonist or a PPI be used. Recent backorders by the 2 manufacturers for tetracycline restrict the use of this regimen. Options that can be considered include minocycline or doxycycline in place of tetracycline, levofloxacin- or moxifloxacin-based regimens, a tinidazole-based regimen, or a rifabutin-based regimen. This article includes a review of 1 study each of minocycline and doxycycline, 5 levofloxacin studies (including meta-analyses), 2 moxifloxacin studies, 1 rifabutin study, and 1 tinidazole study. There are limited data with other tetracyclines; however, given the resistance to quinolones in some areas and possible drug interactions and adverse effects from rifabutin, minocycline or doxycycline regimens may be a better second-line regimen option. Conclusions: Given the current tetracycline shortage, minocycline and doxycycline are options to be considered in patients with a macrolide-based treatment failure. Fluoroquinolones may be an option for patients who have not received these drugs for other indications in the recent past or in areas where resistance is low.
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