Salvage Options for Eradication of Helicobacter pylori During Tetracycline Backorder

Author:

Segarra-Newnham Marisel1,Coakley Christina2

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.

Publisher

SAGE Publications

Subject

Pharmaceutical Science

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