1
|
Wang SW, Yu FJ, Kuo FC, Wang JW, Wang YK, Chen YH, Hsu WH, Liu CJ, Wu DC, Kuo CH. Rescue therapy for refractory Helicobacter pylori infection: current status and future concepts. Therap Adv Gastroenterol 2023; 16:17562848231170941. [PMID: 37168402 PMCID: PMC10164852 DOI: 10.1177/17562848231170941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 04/04/2023] [Indexed: 05/13/2023] Open
Abstract
Helicobacter pylori infection is an important issue worldwide, and several guidelines have been published for clinicians to achieve successful eradication. However, there are still some patients who remain infected with H. pylori after treatment. Clinicians should identify the reasons that caused treatment failure and find strategies to manage them. We have searched and organized the literature and developed methods to overcome factors that contribute to prior treatment failure, such as poor compliance, inadequate intragastric acid suppression, and antibiotic resistance. To improve compliance, telemedicine or smartphone applications might play a role in the modern world by increasing doctor-patient relationships, while concomitant probiotics could be administered to reduce adverse effects and enhance adherence. For better acid suppression, high-potency and high-dose proton-pump inhibitors or potassium-competitive acid blockers have preferable efficacy. To overcome antibiotic resistance, susceptibility tests either by culture or by genotyping are the most commonly used methods and have been suggested for antibiotic selection before rescue therapy, but empirical therapy according to detailed medical history could be an alternative. Eradication with a longer treatment period (14 days) has a better outcome than shorter period (7 or 10 days). Ultimately, clinicians should select antibiotics based on the patient's history of drug allergy, previous antibiotic exposure, local antibiotic resistance, available medications, and cost. In addition, identifying patients with a high risk of cancer and shared decision-making are also essential for those who have experienced eradication failure.
Collapse
Affiliation(s)
- Song-Wei Wang
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
| | - Fang-Jung Yu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
| | - Fu-Chen Kuo
- School of Medicine, College of Medicine, E-Da Hospital, I-Shou University, Kaohsiung
| | - Jiunn-Wei Wang
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
| | - Yao-Kuang Wang
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
| | - Yi-Hsun Chen
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
| | - Wen-Hung Hsu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung
| | - Chung-Jung Liu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
| | - Deng-Chyang Wu
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
- Regenerative Medicine and Cell therapy Research Center, Kaohsiung Medical University, Kaohsiung
| | - Chao-Hung Kuo
- Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Medical University Hospital, No.100, Tzyou 1st Road, Kaohsiung 80756
- Department of Medicine, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
- Department of Internal Medicine, Kaohsiung Municipal Siaogang Hospital, Kaohsiung
- Regenerative Medicine and Cell therapy Research Center, Kaohsiung Medical University, Kaohsiung
| |
Collapse
|
2
|
de Moraes Andrade PV, Monteiro YM, Chehter EZ. Third-line and rescue therapy for refractory Helicobacter pylori infection: A systematic review. World J Gastroenterol 2023; 29:390-409. [PMID: 36687120 PMCID: PMC9846933 DOI: 10.3748/wjg.v29.i2.390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/12/2022] [Accepted: 12/01/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Due to increasing resistance rates of Helicobacter pylori (H. pylori) to different antibiotics, failures in eradication therapies are becoming more frequent. Even though eradication criteria and treatment algorithms for first-line and second-line therapy against H. pylori infection are well-established, there is no clear recommendation for third-line and rescue therapy in refractory H. pylori infection.
AIM To perform a systematic review evaluating the efficacy and safety of rescue therapies against refractory H. pylori infection.
METHODS A systematic search of available rescue treatments for refractory H. pylori infection was conducted on the National Library of Medicine’s PubMed search platform based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Randomized or non-randomized clinical trials and observational studies evaluating the effectiveness of H. pylori infection rescue therapies were included.
RESULTS Twenty-eight studies were included in the analysis of mean eradication rates as rescue therapy, and 21 of these were selected for analysis of mean eradication rate as third-line treatment. For rifabutin-, sitafloxacin-, levofloxacin-, or metronidazole-based triple-therapy as third-line treatment, mean eradication rates of 81.6% and 84.4%, 79.4% and 81.5%, 55.7% and 60.6%, and 62.0% and 63.0% were found in intention-to-treat (ITT) and per-protocol (PP) analysis, respectively. For third-line quadruple therapy, mean eradication rates of 69.2% and 72.1% were found for bismuth quadruple therapy (BQT), 88.9% and 90.9% for bismuth quadruple therapy, three-in-one, Pylera® (BQT-Pylera), and 61.3% and 64.2% for non-BQT) in ITT and PP analysis, respectively. For rifabutin-, sitafloxacin-, levofloxacin-, or metronidazole-based triple therapy as rescue therapy, mean eradication rates of 75.4% and 78.8%, 79.4 and 81.5%, 55.7% and 60.6%, and 62.0% and 63.0% were found in ITT and PP analysis, respectively. For quadruple therapy as rescue treatment, mean eradication rates of 76.7% and 79.2% for BQT, 84.9% and 87.8% for BQT-Pylera, and 61.3% and 64.2% for non-BQT were found in ITT and PP analysis, respectively. For susceptibility-guided therapy, mean eradication rates as third-line and rescue treatment were 75.0% in ITT and 79.2% in PP analysis.
CONCLUSION We recommend sitafloxacin-based triple therapy containing vonoprazan in regions with low macrolide resistance profile. In regions with known resistance to macrolides or unavailability of bismuth, rifabutin-based triple therapy is recommended.
Collapse
Affiliation(s)
| | - Yan Mosca Monteiro
- Department of Gastroenterology, Faculdade de Medicina do ABC, Santo André 09060-650, SP, Brazil
| | - Ethel Zimberg Chehter
- Department of Gastroenterology, Faculdade de Medicina do ABC, Santo André 09060-650, SP, Brazil
| |
Collapse
|
3
|
Bacterial Membrane Vesicles as a Novel Strategy for Extrusion of Antimicrobial Bismuth Drug in Helicobacter pylori. mBio 2022; 13:e0163322. [PMID: 36154274 PMCID: PMC9601102 DOI: 10.1128/mbio.01633-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Bacterial antibiotic resistance is a major threat to human health. A combination of antibiotics with metals is among the proposed alternative treatments. Only one such combination is successfully used in clinics; it associates antibiotics with the metal bismuth to treat infections by Helicobacter pylori. This bacterial pathogen colonizes the human stomach and is associated with gastric cancer, killing 800,000 individuals yearly. The effect of bismuth in H. pylori treatment is not well understood in particular for sublethal doses such as those measured in the plasma of treated patients. We addressed this question and observed that bismuth induces the formation of homogeneously sized membrane vesicles (MVs) with unique protein cargo content enriched in bismuth-binding proteins, as shown by quantitative proteomics. Purified MVs of bismuth-exposed bacteria were strongly enriched in bismuth as measured by inductively coupled plasma optical emission spectrometry (ICP-OES), unlike bacterial cells from which they originate. Thus, our results revealed a novel function of MVs in bismuth detoxification, where secreted MVs act as tool to discard bismuth from the bacteria. Bismuth also induces the formation of intracellular polyphosphate granules that are associated with changes in nucleoid structure. Nucleoid compaction in response to bismuth was established by immunogold electron microscopy and refined by the first chromosome conformation capture (Hi-C) analysis of H. pylori. Our results reveal that even low doses of bismuth induce profound changes in H. pylori physiology and highlight a novel defense mechanism that involves MV-mediated bismuth extrusion from the bacteria and a probable local DNA protective response where polyphosphate granules are associated with nucleoid compaction.
Collapse
|
4
|
Malfertheiner P, Megraud F, Rokkas T, Gisbert JP, Liou JM, Schulz C, Gasbarrini A, Hunt RH, Leja M, O'Morain C, Rugge M, Suerbaum S, Tilg H, Sugano K, El-Omar EM. Management of Helicobacter pylori infection: the Maastricht VI/Florence consensus report. Gut 2022; 71:gutjnl-2022-327745. [PMID: 35944925 DOI: 10.1136/gutjnl-2022-327745] [Citation(s) in RCA: 328] [Impact Index Per Article: 164.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/21/2022] [Indexed: 01/06/2023]
Abstract
Helicobacter pyloriInfection is formally recognised as an infectious disease, an entity that is now included in the International Classification of Diseases 11th Revision. This in principle leads to the recommendation that all infected patients should receive treatment. In the context of the wide clinical spectrum associated with Helicobacter pylori gastritis, specific issues persist and require regular updates for optimised management.The identification of distinct clinical scenarios, proper testing and adoption of effective strategies for prevention of gastric cancer and other complications are addressed. H. pylori treatment is challenged by the continuously rising antibiotic resistance and demands for susceptibility testing with consideration of novel molecular technologies and careful selection of first line and rescue therapies. The role of H. pylori and antibiotic therapies and their impact on the gut microbiota are also considered.Progress made in the management of H. pylori infection is covered in the present sixth edition of the Maastricht/Florence 2021 Consensus Report, key aspects related to the clinical role of H. pylori infection were re-evaluated and updated. Forty-one experts from 29 countries representing a global community, examined the new data related to H. pylori infection in five working groups: (1) indications/associations, (2) diagnosis, (3) treatment, (4) prevention/gastric cancer and (5) H. pylori and the gut microbiota. The results of the individual working groups were presented for a final consensus voting that included all participants. Recommendations are provided on the basis of the best available evidence and relevance to the management of H. pylori infection in various clinical fields.
Collapse
Affiliation(s)
- Peter Malfertheiner
- Medical Department 2, LMU, Munchen, Germany
- Department of Radiology, LMU, Munchen, Germany
| | - Francis Megraud
- INSERM U853 UMR BaRITOn, University of Bordeaux, Bordeaux, France
| | - Theodore Rokkas
- Gastroenterology, Henry Dunant Hospital Center, Athens, Greece
- Medical School, European University, Nicosia, Cyprus
| | - Javier P Gisbert
- Gastroenterology, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IP), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Jyh-Ming Liou
- Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Christian Schulz
- Medical Department 2, LMU, Munchen, Germany
- Partner Site Munich, DZIF, Braunschweig, Germany
| | - Antonio Gasbarrini
- Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario Gemelli IRCCS, Università Cattolica del Sacro Cuore Facoltà di Medicina e Chirurgia, Roma, Italy
| | - Richard H Hunt
- Medicine, McMaster University, Hamilton, Ontario, Canada
- Farncombe Family Digestive Health Research Institute, Hamilton, Ontario, Canada
| | - Marcis Leja
- Faculty of Medicine, University of Latvia, Riga, Latvia
- Institute of Clinical and Preventive Medicine, University of Latvia, Riga, Latvia
| | - Colm O'Morain
- Faculty of Health Sciences, Trinity College Dublin, Dublin, Ireland
| | - Massimo Rugge
- Department of Medicine (DIMED), Surgical Pathology & Cytopathology Unit, University of Padova, Padova, Italy
- Veneto Tumor Registry (RTV), Padova, Italy
| | - Sebastian Suerbaum
- Partner Site Munich, DZIF, Braunschweig, Germany
- Max von Pettenkofer Institute, LMU, Munchen, Germany
| | - Herbert Tilg
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology & Metabolism, Medizinische Universitat Innsbruck, Innsbruck, Austria
| | - Kentaro Sugano
- Department of Medicine, Jichi Medical School, Tochigi, Japan
| | - Emad M El-Omar
- Department of Medicine, University of New South Wales, Sydney, New South Wales, Australia
- School of Medicine and Dentistry, University of Aberdeen, Aberdeen, UK
| |
Collapse
|
5
|
Chang YW, Shin GY, Kim JW, Moon JC, Chang EJ, Oh CH, Jang JY. Cost-Effectiveness of Empirical Bismuth-Based Quadruple Therapy and Tailored Therapy After Clarithromycin Resistance Tests for Helicobacter pylori Eradication. Dig Dis Sci 2022; 67:1222-1230. [PMID: 33755825 DOI: 10.1007/s10620-021-06938-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 03/05/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND The eradication rate of clarithromycin-based standard triple therapy (STT) for Helicobacter pylori infection has decreased due to clarithromycin resistance (CR). We evaluated the cost-effectiveness of tailored therapy according to CR test results, and compared the results of STT with those of empirical bismuth quadruple therapy (BQT). METHODS The prospectively collected data of 490 H. pylori-positive patients with chronic gastritis or peptic ulcer disease were retrospectively analyzed. Among them, 292 patients underwent CR testing using dual-priming oligonucleotide-based polymerase chain reaction. The tailored group (n = 292) consisted of patients treated with STT for 7 days and BQT for 10 days as per their CR test results. The remaining patients were assigned to the empirical group (n = 198) and received BQT for 10 days without a CR test. The eradication rate, adverse events and medical costs associated with H. pylori eradication therapy were investigated. RESULTS In the tested patients (tailored group), the CR-positive rate was 32.2% (n = 94/292). The eradication rate according to an intention-to-treat analysis was 87.7% in the tailored group and 91.8% in the empirical group (P = 0.124); the respective rates were 94.4% and 97.9% by per-protocol analysis (P = 0.010). The frequency of adverse events was lower in the empirical group than the tailored group (35.1% vs. 52.7%, P < 0.001). Total per capita medical costs were $406.50 and $503.50, respectively. CONCLUSIONS Ten-day empirical BQT was more effective, safer, and less expensive than tailored therapy based on a CR test for H. pylori eradication.
Collapse
Affiliation(s)
- Young Woon Chang
- Department of Internal Medicine, Cheonan-Woori Hospital, Cheonan, Korea
| | - Ga Young Shin
- Department of Gastroenterology, Kyung Hee University College of Medicine, 23 Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, 02447, Korea
| | - Jung-Wook Kim
- Department of Gastroenterology, Kyung Hee University College of Medicine, 23 Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, 02447, Korea.
| | - Jin-Chang Moon
- Department of Internal Medicine, Cheonan-Woori Hospital, Cheonan, Korea
| | - Eun Jee Chang
- Department of Preventive Medicine, Graduate School of Public Health, Seoul National University, Seoul, Korea
| | - Chi Hyuk Oh
- Department of Gastroenterology, Kyung Hee University College of Medicine, 23 Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, 02447, Korea
| | - Jae-Young Jang
- Department of Gastroenterology, Kyung Hee University College of Medicine, 23 Kyung Hee Dae-ro, Dongdaemun-gu, Seoul, 02447, Korea
| |
Collapse
|
6
|
Kumar S, Vinella D, De Reuse H. Nickel, an essential virulence determinant of Helicobacter pylori: Transport and trafficking pathways and their targeting by bismuth. Adv Microb Physiol 2022; 80:1-33. [PMID: 35489790 DOI: 10.1016/bs.ampbs.2022.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Metal acquisition and intracellular trafficking are crucial for all cells and metal ions have been recognized as virulence determinants in bacterial pathogens. Nickel is required for the pathogenicity of H. pylori. This bacterial pathogen colonizes the stomach of about half of the human population worldwide and is associated with gastric cancer that is responsible for 800,000 deaths per year. H. pylori possesses two nickel-enzymes that are essential for in vivo colonization, a [NiFe] hydrogenase and an abundant urease responsible for resistance to gastric acidity. Because of these two enzymes, survival of H. pylori relies on an important supply of nickel, implying tight control strategies to avoid its toxic accumulation or deprivation. H. pylori possesses original mechanisms for nickel uptake, distribution, storage and trafficking that will be discussed in this review. During evolution, acquisition of nickel transporters and specific nickel-binding proteins has been a decisive event to allow Helicobacter species to become able to colonize the stomach. Accordingly, many of the factors involved in these mechanisms are required for mouse colonization by H. pylori. These mechanisms are controlled at different levels including protein interaction networks, transcriptional, post-transcriptional and post-translational regulation. Bismuth is another metal used in combination with antibiotics to efficiently treat H. pylori infections. Although the precise mode of action of bismuth is unknown, many targets have been identified in H. pylori and there is growing evidence that bismuth interferes with the essential nickel pathways. Understanding the metal pathways will help improve treatments against H. pylori and other pathogens.
Collapse
Affiliation(s)
- Sumith Kumar
- Unité Pathogenèse de Helicobacter, CNRS UMR6047, Département de Microbiologie, Institut Pasteur, Paris, France
| | - Daniel Vinella
- Unité Pathogenèse de Helicobacter, CNRS UMR6047, Département de Microbiologie, Institut Pasteur, Paris, France
| | - Hilde De Reuse
- Unité Pathogenèse de Helicobacter, CNRS UMR6047, Département de Microbiologie, Institut Pasteur, Paris, France.
| |
Collapse
|
7
|
Ibrahim N, El Said H, Choukair A. Zinc carnosine-based modified bismuth quadruple therapy vs standard triple therapy for Helicobacter pylori eradication: A randomized controlled study. World J Clin Cases 2022; 10:227-235. [PMID: 35071521 PMCID: PMC8727261 DOI: 10.12998/wjcc.v10.i1.227] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/07/2021] [Accepted: 11/28/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Helicobacter pylori (H. pylori) infection is a worldwide problem with increasing burden on the health sector due to its increasing rate of resistance. The conventional triple therapy (TT) is becoming obsolete with a high failure rate of eradication, necessitating the need for better alternatives or regimens.
AIM To investigate H. pylori eradication rate of TT vs modified bismuth quadruple therapy.
METHODS Ninety-two patients with dyspepsia symptoms and positive 13C-urea breath test were randomly assigned to two groups. The first group (control group) was treated for 14 d using standard TT protocol: Esomeprazole (40 mg twice daily), amoxicillin (1 g twice daily) and clarithromycin (500 mg twice daily). On the other hand, the second group was prescribed a 10-d course of modified bismuth quadruple therapy fortified with zinc carnosine: TT in addition to bismuth subcitrate (240 mg twice daily) and zinc carnosine (75 mg twice daily). A repeated 13C-urea breath test was done 4 wk after the completion of the eradication therapy.
RESULTS Among the 92 subjects, 67.4% were males and 32.6% were females. There were no differences in demographic characteristics (age, body mass index, smoking history, previous antibiotics use and ethnicity) between the modified bismuth quadruple therapy group and TT group. The eradication rate was higher [93.5% (43/46)] in the modified bismuth quadruple therapy group compared to 69.6% (32/46) in the standard TT group (P = 0.003). Of the tested predictor variables, only nationality, smoking and therapy type were statistically significant. Besides dizziness, which was recorded in modified bismuth quadruple therapy group, there were no significant differences in side effects between the two groups.
CONCLUSION Ten days of modified bismuth quadruple therapy fortified with zinc carnosine is superior to 14 d of conventional TT in eradicating H. pylori infection, with no additional significant adverse events.
Collapse
Affiliation(s)
- Nour Ibrahim
- Faculty of Medical Sciences, Lebanese University, Beirut 0000, Lebanon
| | - Hassan El Said
- Department of Biological and Chemical Sciences, School of Arts and Sciences, Lebanese International University, Beirut 0000, Lebanon
| | - Ali Choukair
- Department of Gastroenterology, Clemenceau Medical Center, Dubai 00000, United Arab Emirates
| |
Collapse
|
8
|
Helicobacter pylori eradication following first-line treatment failure in Europe: What, how and when chose among different standard regimens? A systematic review. Eur J Gastroenterol Hepatol 2021; 33:e66-e70. [PMID: 33741798 DOI: 10.1097/meg.0000000000002100] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cure rate following standard first-line regimens for Helicobacter pylori eradication is decreasing so several patients require two or more treatments. Antibiotic susceptibility-based therapy, advised in current guidelines, is largely impracticable in clinical practice. Some 'standard' regimens (triple therapies based on either levofloxacin or rifabutin, bismuth-based quadruple therapies, sequential, concomitant and hybrid therapies) were empirically used as rescue therapies. We performed a systematic review on recent studies carried out in European countries dealing with these regimens. A total of 24 studies, with 3804 patients, were identified. As second-line therapy, Pylera (89.2%) and sequential therapy (92.5%) achieved significantly higher cure rates as compared to all the other regimens. As third-line therapy, levofloxacin-based therapy (84.1%) and Pylera (83.6%) achieved similarly high cure rates, whereas standard, bismuth-based quadruple therapy (64.1%) achieved the lowest. As a rescue therapy, the success rate was close to 75% following all therapies used, with data on rifabutin-based regimen consolidated in the larger sample size. Overall, levofloxacin-amoxicillin triple therapy achieved higher eradication rates when the 14- rather than 10-day regimen was used (87.1 vs. 72.2%; P = 0.003). Among bismuth-based therapies, Pylera achieved a significantly higher eradication rate than standard quadruple therapy (88 vs. 67%; P < 0.0001). These data suggest that a wise 'therapeutic package' following first-line therapy could be Pylera, levofloxacin- and rifabutin-based therapy, as long as Pylera therapy was not used as a first-line regimen and levofloxacin-based regimen was administered for 14 days.
Collapse
|
9
|
Guo B, Cao NW, Zhou HY, Chu XJ, Li BZ. Efficacy and safety of bismuth-containing quadruple treatment and concomitant treatment for first-line Helicobacter pylori eradication: A systematic review and meta-analysis. Microb Pathog 2020; 152:104661. [PMID: 33249167 DOI: 10.1016/j.micpath.2020.104661] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 11/19/2020] [Accepted: 11/19/2020] [Indexed: 12/19/2022]
Abstract
Bismuth-containing quadruple treatment (BQT) and concomitant treatment (CT) were recommended as alternative first-line treatments of Helicobacter pylori (H. Pylori). A meta-analysis was performed to evaluate the cure rates and compare efficacy and safety of BQT and CT for H. Pylori eradication. PubMed, Cochrane Library, and Embase databases were searched on June 16, 2020. Meta-analysis, sensitivity analysis, and subgroup analysis were conducted by Review Manager 5.3 and Stata 11.0. Ten studies were collected. We found no difference of cure rate between BQT and CT in intention-to-treat (ITT) analysis (84.6% vs. 82.9%, OR = 1.14, 95% CI: 0.94-1.38; P = 0.19) and marginally statistical difference in per-protocol (PP) analysis (92.4% vs 90.1%, OR = 1.32, 95% CI: 1.00-1.73; P = 0.05). Based on the results of subgroup analyses, we found statistical difference of eradication rate between BQT and CT (amoxicillin + clarithromycin + metronidazole + PPI treatment) according to PP analysis (94.3% vs. 91.5%, OR = 1.49, 95% CI:1.03-2.15; P = 0.03) and marginally statistical difference according to ITT analysis (87.5% vs. 84.6%, OR = 1.28, 95% CI:1.00-1.65; P = 0.05). BQT and CT may be both good treatment options for H. pylori infection. However, BQT was superior to current scheme of CT (amoxicillin + clarithromycin + metronidazole + PPI treatment) in subgroup analysis. It is very necessary to choose tailored therapy as an outstanding way to reduce the impact of antibiotic.
Collapse
Affiliation(s)
- Biao Guo
- Department of Human Resource, The Second Affiliated Hospital of Anhui Medical University, Anhui, Hefei, China
| | - Nv-Wei Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Hao-Yue Zhou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Xiu-Jie Chu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Bao-Zhu Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.
| |
Collapse
|
10
|
Kowalik M, Masternak J, Łakomska I, Kazimierczuk K, Zawilak-Pawlik A, Szczepanowski P, Khavryuchenko OV, Barszcz B. Structural Insights into New Bi(III) Coordination Polymers with Pyridine-2,3-Dicarboxylic Acid: Photoluminescence Properties and Anti- Helicobacter pylori Activity. Int J Mol Sci 2020; 21:E8696. [PMID: 33218028 PMCID: PMC7698728 DOI: 10.3390/ijms21228696] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/12/2020] [Accepted: 11/17/2020] [Indexed: 01/19/2023] Open
Abstract
Two novel coordination polymers, [Bi2(2,3pydc)2(2,3pydcH)2(H2O)]n (1) and {(Et3NH)2[Bi(2,3pydc)(2,3pydcH)Cl2]}n (2) were prepared using as a prolinker pyridine-2,3-dicarboxylic acid (2,3pydcH2). The obtained complexes were fully characterized by elemental analysis, TG/DTG, FT-IR, solid-state photoluminescence, DFT calculations and single-crystal X-ray diffraction. The obtained complexes crystallized in the triclinic P-1 space group (1) and comprise dimeric units with two crystallographically different Bi(III) centers (polyhedra: distorted pentagonal bipyramid and bicapped trigonal prism) and monoclinic P21/c space group (2) with a distorted monocapped pentagonal bipyramid of Bi(III) center. The various coordination modes of bridging carboxylate ligands are responsible for the formation of 1D chains with 4,5C10 (1) and 2C1 (2) topology. The photoluminescence quantum yield for polymer 2 is 8.36%, which makes it a good candidate for more specific studies towards Bi-based fluorescent materials. Moreover, it was detected that polymer 1 is more than twice as active against H. pylori as polymer 2. It can be concluded that there is an existing relationship between the structure and the antibacterial activity because the presence of chloride and triethylammonium ions in the structure of complex 2 reduces the antibacterial activity.
Collapse
Affiliation(s)
- Mateusz Kowalik
- Institute of Chemistry, Jan Kochanowski University in Kielce, Uniwersytecka 7, 25-406 Kielce, Poland; (J.M.); (B.B.)
| | - Joanna Masternak
- Institute of Chemistry, Jan Kochanowski University in Kielce, Uniwersytecka 7, 25-406 Kielce, Poland; (J.M.); (B.B.)
| | - Iwona Łakomska
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland
| | - Katarzyna Kazimierczuk
- Department of Inorganic Chemistry, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza 11/12, 80-233 Gdańsk, Poland;
| | - Anna Zawilak-Pawlik
- Laboratory of Molecular Biology of Microorganisms, Microbiology Department, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland; (A.Z.-P.); (P.S.)
| | - Piotr Szczepanowski
- Laboratory of Molecular Biology of Microorganisms, Microbiology Department, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Weigla 12, 53-114 Wrocław, Poland; (A.Z.-P.); (P.S.)
| | - Oleksiy V. Khavryuchenko
- Shupyk National Medical Academy of Postgraduate Education (NMAPE), Dorogozhytska 9, 04112 Kyiv, Ukraine;
| | - Barbara Barszcz
- Institute of Chemistry, Jan Kochanowski University in Kielce, Uniwersytecka 7, 25-406 Kielce, Poland; (J.M.); (B.B.)
| |
Collapse
|
11
|
Gisbert JP. Empirical or susceptibility-guided treatment for Helicobacter pylori infection? A comprehensive review. Therap Adv Gastroenterol 2020; 13:1756284820968736. [PMID: 33240392 PMCID: PMC7675893 DOI: 10.1177/1756284820968736] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/01/2020] [Indexed: 02/06/2023] Open
Abstract
Although susceptibility-guided therapy is frequently recommended for Helicobacter pylori infection, the evidence available to date supporting this strategy is limited. The aim of the present article is to review the advantages and limitations of the susceptibility-guided and the empirical strategies to treat this infection. We performed a bibliographic search to identify studies investigating H. pylori susceptibility-guided therapy. Culture is not the only way to assess antibiotic resistance, as different polymerase chain reaction-based approaches have been developed as alternative methods. For detecting H. pylori antimicrobial resistance, a molecular approach based on a stool sample might enable more convenient, time-saving methods. Unfortunately, the antimicrobial susceptibility cannot be obtained in all cases. Furthermore, antibiotic susceptibility testing in clinical practice yields useful information only for a few antibiotics: clarithromycin, metronidazole, and quinolones. In addition, susceptibility towards clarithromycin and metronidazole in vitro does not necessarily lead to eradication in vivo. In the case of H. pylori therapy failure, we should not re-administer any of the antibiotics against which H. pylori has probably become resistant. Our updated meta-analysis showed that susceptibility-guided treatment is not better than empirical treatment of H. pylori infection in first-line therapy if the most updated quadruple regimens are empirically prescribed, and similar efficacy results were also demonstrated with the two strategies for second-line therapy. Cumulative H. pylori eradication rate with several successive rescue therapies empirically prescribed reaches almost 100%. Finally, the studies that have evaluated the cost-effectiveness of the susceptibility-guided treatment have achieved contradictory results. In summary, we can conclude that the evidence is too limited to support the generalized use of susceptibility-guided therapy for H. pylori treatment in routine clinical practice, either as first-line or as rescue treatment. Nevertheless, it would be recommended that susceptibility tests are performed routinely, even before prescribing first-line treatment, in specialized centers with an interest in H. pylori management.
Collapse
Affiliation(s)
- Javier P. Gisbert
- Gastroenterology Unit, Hospital Universitario de La
Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad
Autónoma de Madrid, Centro de Investigación Biomédica en Red de Enfermedades
Hepáticas y Digestivas (CIBEREHD), Diego de León, 62, Madrid, 28006, Spain
| |
Collapse
|
12
|
Nyssen OP, Perez-Aisa A, Rodrigo L, Castro M, Mata Romero P, Ortuño J, Barrio J, Huguet JM, Modollel I, Alcaide N, Lucendo A, Calvet X, Perona M, Gomez B, Gomez Rodriguez BJ, Varela P, Jimenez-Moreno M, Dominguez-Cajal M, Pozzati L, Burgos D, Bujanda L, Hinojosa J, Molina-Infante J, Di Maira T, Ferrer L, Fernández-Salazar L, Figuerola A, Tito L, de la Coba C, Gomez-Camarero J, Fernandez N, Caldas M, Garre A, Resina E, Puig I, O'Morain C, Megraud F, Gisbert JP. Bismuth quadruple regimen with tetracycline or doxycycline versus three-in-one single capsule as third-line rescue therapy for Helicobacter pylori infection: Spanish data of the European Helicobacter pylori Registry (Hp-EuReg). Helicobacter 2020; 25:e12722. [PMID: 32656898 DOI: 10.1111/hel.12722] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Different bismuth quadruple therapies containing proton-pump inhibitors, bismuth salts, metronidazole, and a tetracycline have been recommended as third-line Helicobacter pylori eradication treatment after failure with clarithromycin and levofloxacin. AIM To evaluate the efficacy and safety of third-line treatments with bismuth, metronidazole, and either tetracycline or doxycycline. METHODS Sub-study with Spanish data of the "European Registry on H pylori Management" (Hp-EuReg), international multicenter prospective non-interventional Registry of the routine clinical practice of gastroenterologists. After previous failure with clarithromycin- and levofloxacin-containing therapies, patients receiving a third-line regimen with 10/14-day bismuth salts, metronidazole, and either tetracycline (BQT-Tet) or doxycycline (BQT-Dox), or single capsule (BQT-three-in-one) were included. Data were registered at AEG-REDCap database. Univariate and multivariate analyses were performed. RESULTS Four-hundred and fifty-four patients have been treated so far: 85 with BQT-Tet, 94 with BQT-Dox, and 275 with BQT-three-in-one. Average age was 53 years, 68% were women. Overall modified intention-to-treat and per-protocol eradication rates were 81% (BQT-Dox: 65%, BQT-Tet: 76%, BQT-three-in-one: 88%) and 82% (BQT-Dox: 66%, BQT-Tet: 77%, BQT-three-in-one: 88%), respectively. By logistic regression, higher eradication rates were associated with compliance (OR = 2.96; 95% CI = 1.01-8.84) and no prior metronidazole use (OR = 1.96; 95% CI = 1.15-3.33); BQT-three-in-one was superior to BQT-Dox (OR = 4.46; 95% CI = 2.51-8.27), and BQT-Tet was marginally superior to BQT-Dox (OR = 1.67; 95% CI = 0.85-3.29). CONCLUSION Third-line H pylori eradication with bismuth quadruple treatment (after failure with clarithromycin and levofloxacin) offers acceptable efficacy and safety. Highest efficacy was found in compliant patients and those taking 10-day BQT-three-in-one or 14-day BQT-Tet. Doxycycline seems to be less effective and therefore should not be recommended.
Collapse
Affiliation(s)
- Olga P Nyssen
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | | | - Luis Rodrigo
- Gastroenterology Unit, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Manuel Castro
- Gastroenterology Unit, Hospital de Valme and CIBEREHD, Sevilla, Spain
| | - Pilar Mata Romero
- Gastroenterology Unit, Hospital San Pedro de Alcántara and CIBEREHD, Cáceres, Spain
| | - Juan Ortuño
- Gastroenterology Unit, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Jesus Barrio
- Gastroenterology Unit, Hospital Rio Hortega, Valladolid, Spain
| | - Jose Maria Huguet
- Gastroenterology Unit, Consorci Hospital General Universitari Valencia, Valencia, Spain
| | - Ines Modollel
- Gastroenterology Unit, Consorci Sanitari Terrassa, Terrassa, Spain
| | - Noelia Alcaide
- Gastroenterology Unit, Hospital Clínico Universitario de Valladolid, Valladolid, Spain
| | - Alfredo Lucendo
- Gastroenterology Unit, Hospital de Tomelloso, Ciudad Real, Spain
| | - Xavier Calvet
- Gastroenterology Unit, Hospital de Sabadell and CIBEREHD, Barcelona, Spain
| | - Monica Perona
- Gastroenterology Unit, Hospital Quiron, Marbella, Spain
| | - Barbara Gomez
- Gastroenterology Unit, Hospital de Mataró, Barcelona, Spain
| | | | - Pilar Varela
- Gastroenterology Unit, Hospital de Cabueñes Gijon, Spain
| | | | | | | | - Diego Burgos
- Gastroenterology Unit, Hospital Ramon y Cajal, Madrid, Spain
| | - Luis Bujanda
- Gastroenterology Unit, Hospital Donostia/Instituto Biodonostia, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad del País Vasco (UPV/EHU), San Sebastián, Spain
| | - Jenifer Hinojosa
- Gastroenterology Unit, Agencia Sanitaria Costa del Sol, Málaga, Spain
| | | | - Tommaso Di Maira
- Gastroenterology Unit, Hospital Universitari i Politècnic La Fe, Valencia, Spain
| | - Luis Ferrer
- Gastroenterology Unit, Consorci Hospital General Universitari Valencia, Valencia, Spain
| | | | - Ariadna Figuerola
- Gastroenterology Unit, Hospital de Sabadell and CIBEREHD, Barcelona, Spain
| | - Llucia Tito
- Gastroenterology Unit, Hospital de Mataró, Barcelona, Spain
| | | | | | - Nuria Fernandez
- Gastroenterology Unit, Agencia Sanitaria Costa del Sol, Málaga, Spain
| | - Maria Caldas
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Ana Garre
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Elena Resina
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Ignasi Puig
- Gastroenterology Unit, Althaia Xarxa Assistencial Universitària de Manresa and Universitat de Vic-Universitat Central de Catalunya (UVicUCC), Manresa, Spain
| | - Colm O'Morain
- Gastroenterology Unit, Trinity College, Dublin, Ireland
| | - Francis Megraud
- Gastroenterology Unit, Centre National de Référence des Campylobacters et Hélicobacters, Université de Bordeaux, Bordeaux, France
| | - Javier P Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid, and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| |
Collapse
|
13
|
Breijyeh Z, Jubeh B, Karaman R. Resistance of Gram-Negative Bacteria to Current Antibacterial Agents and Approaches to Resolve It. Molecules 2020; 25:E1340. [PMID: 32187986 PMCID: PMC7144564 DOI: 10.3390/molecules25061340] [Citation(s) in RCA: 488] [Impact Index Per Article: 122.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/12/2020] [Accepted: 03/12/2020] [Indexed: 12/18/2022] Open
Abstract
Antimicrobial resistance represents an enormous global health crisis and one of the most serious threats humans face today. Some bacterial strains have acquired resistance to nearly all antibiotics. Therefore, new antibacterial agents are crucially needed to overcome resistant bacteria. In 2017, the World Health Organization (WHO) has published a list of antibiotic-resistant priority pathogens, pathogens which present a great threat to humans and to which new antibiotics are urgently needed the list is categorized according to the urgency of need for new antibiotics as critical, high, and medium priority, in order to guide and promote research and development of new antibiotics. The majority of the WHO list is Gram-negative bacterial pathogens. Due to their distinctive structure, Gram-negative bacteria are more resistant than Gram-positive bacteria, and cause significant morbidity and mortality worldwide. Several strategies have been reported to fight and control resistant Gram-negative bacteria, like the development of antimicrobial auxiliary agents, structural modification of existing antibiotics, and research into and the study of chemical structures with new mechanisms of action and novel targets that resistant bacteria are sensitive to. Research efforts have been made to meet the urgent need for new treatments; some have succeeded to yield activity against resistant Gram-negative bacteria by deactivating the mechanism of resistance, like the action of the β-lactamase Inhibitor antibiotic adjuvants. Another promising trend was by referring to nature to develop naturally derived agents with antibacterial activity on novel targets, agents such as bacteriophages, DCAP(2-((3-(3,6-dichloro-9H-carbazol-9-yl)-2-hydroxypropyl)amino)-2(hydroxymethyl)propane1,3-diol, Odilorhabdins (ODLs), peptidic benzimidazoles, quorum sensing (QS) inhibitors, and metal-based antibacterial agents.
Collapse
Affiliation(s)
| | | | - Rafik Karaman
- Department of Bioorganic & Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Quds University, Jerusalem P.O. Box 20002, Palestine; (Z.B.); (B.J.)
| |
Collapse
|
14
|
Guiard E, Lelievre B, Rouyer M, Zerbib F, Diquet B, Mégraud F, Tison F, Bignon E, Lassalle R, Droz-Perroteau C, Moore N, Blin P. Bismuth Concentrations in Patients Treated in Real-Life Practice with a Bismuth Subcitrate-Metronidazole-Tetracycline Preparation: The SAPHARY Study. Drug Saf 2020; 42:993-1003. [PMID: 31069703 DOI: 10.1007/s40264-019-00821-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION A fixed-dose association of bismuth subcitrate, metronidazole and tetracycline (BMT) (Pylera®, Allergan, NJ, USA) was made available in France in 2013 for the eradication of Helicobacter pylori. Due to a historical issue of bismuth encephalopathy, the French Health Authorities requested a study of blood and plasma bismuth concentrations with BMT in daily practice. AIMS The aim of the study was to measure eventual bismuth accumulation and neurological toxicity in patients prescribed BMT. METHODS Patients initiating BMT for H. pylori between March 2014 and December 2015 were included. A blood sample was taken before first BMT intake and 24 h after the last intake, for assay of bismuth. A concentration > 50 μg/L was considered abnormal. Neurological complaints were assessed at inclusion, at the end of the 10-day treatment course, and 28 days later. RESULTS 202 patients were included, of whom 190 took at least one dose of BMT, and 167 provided both required blood samples. Mean blood bismuth concentrations after the BMT course were 16.9 μg/L (95% confidence interval 15.6-18.3). Concentrations were > 50 μg/L (56.0 μg/L and 50.9 μg/L) in two elderly patients, one of whom presented mild, transient memory impairment during treatment. Non-serious neurological symptoms occurred in 20% of all patients and treatment failure was documented in 5% of patients. CONCLUSIONS In this study measuring blood bismuth concentrations in real-life practice, in < 1% of patients the BMT course resulted in blood bismuth concentrations > 50 μg/L. No serious neurological adverse events were observed. STUDY REGISTRATION EU-PAS register EUPAS3142 at www.encepp.eu ; ENCePP study seal.
Collapse
Affiliation(s)
- Estelle Guiard
- Bordeaux PharmacoEpi, University of Bordeaux, Bâtiment Le Tondu, Case 41, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France.,INSERM CIC1401, CHU Bordeaux, Bordeaux, France
| | | | - Magali Rouyer
- Bordeaux PharmacoEpi, University of Bordeaux, Bâtiment Le Tondu, Case 41, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France.,INSERM CIC1401, CHU Bordeaux, Bordeaux, France
| | - Frank Zerbib
- Department of Gastroenterology, Hepatology and Digestive Oncology, CHU Bordeaux, University of Bordeaux, Bordeaux, France
| | - Bertrand Diquet
- Laboratory of Pharmacology and Toxicology, CHU Angers, Angers, France
| | - Francis Mégraud
- Laboratory of Bacteriology, CHU Bordeaux, French National Reference Center for Helicobacters, Bordeaux, France.,INSERM U1053, University of Bordeaux, Bordeaux, France
| | - François Tison
- Department of Neurology, CHU Bordeaux, University of Bordeaux, Bordeaux, France
| | - Emmanuelle Bignon
- Bordeaux PharmacoEpi, University of Bordeaux, Bâtiment Le Tondu, Case 41, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France.,INSERM CIC1401, CHU Bordeaux, Bordeaux, France
| | - Régis Lassalle
- Bordeaux PharmacoEpi, University of Bordeaux, Bâtiment Le Tondu, Case 41, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France.,INSERM CIC1401, CHU Bordeaux, Bordeaux, France
| | - Cécile Droz-Perroteau
- Bordeaux PharmacoEpi, University of Bordeaux, Bâtiment Le Tondu, Case 41, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France.,INSERM CIC1401, CHU Bordeaux, Bordeaux, France
| | - Nicholas Moore
- Bordeaux PharmacoEpi, University of Bordeaux, Bâtiment Le Tondu, Case 41, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France.,INSERM CIC1401, CHU Bordeaux, Bordeaux, France.,INSERM U1219, University of Bordeaux, Bordeaux, France
| | - Patrick Blin
- Bordeaux PharmacoEpi, University of Bordeaux, Bâtiment Le Tondu, Case 41, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France. .,INSERM CIC1401, CHU Bordeaux, Bordeaux, France.
| |
Collapse
|
15
|
Nyssen OP, McNicholl AG, Gisbert JP. Meta-analysis of three-in-one single capsule bismuth-containing quadruple therapy for the eradication of Helicobacter pylori. Helicobacter 2019; 24:e12570. [PMID: 30767339 DOI: 10.1111/hel.12570] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bismuth-containing quadruple therapy has been suggested as first-line and rescue alternative for Helicobacter pylori eradication. Our objective was to perform a meta-analysis evaluating the efficacy and safety of single capsule Pylera® (bismuth, metronidazole, and tetracycline) plus a proton-pump inhibitor (PPI) in any line of treatment. METHODS Studies were selected up to October 2018. Outcomes were eradication and adverse events (AEs) rates pooled using the generic inverse variance method. RESULTS In total, 30 studies (6482 patients) were included in the systematic review. The intention-to-treat (ITT) efficacy was 90% (95% CI: 87%-92%, 21 studies, I2 = 88%) in first-line therapy, 89% (95% CI: 86%-93%, 12 studies, I2 = 78%) in second-line and 82% (95% CI: 78%-87%, nine studies, I2 = 60%) in third-line; with no differences by the type or dosage of PPI used. For metronidazole-resistant infection, the ITT efficacy as first-line therapy was 93% (95% CI: 90%-96%, six studies, I2 = 0%). In second-line therapies where patients had been previously treated with clarithromycin, the ITT efficacy was 90% (95% CI: 87%-93%, 11 studies, I2 = 78%). The overall incidence of AEs was 43% (95% CI: 35%-50%, 24 studies, I2 = 92%) and they were mostly mild. In nearly 3% of the cases, treatment was interrupted due to AEs. CONCLUSIONS A 10-day treatment with Pylera® achieved an effective eradication rate of approximately 90% both in first- and second-line therapy. This applies regardless of the type and dose of the PPI, in patients with clarithromycin- or metronidazole-resistant strains, and in those previously treated with clarithromycin.
Collapse
Affiliation(s)
- Olga P Nyssen
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Adrian G McNicholl
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Javier P Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Universidad Autónoma de Madrid (UAM), Madrid, Spain
| |
Collapse
|
16
|
Yang X, Wang JX, Han SX, Gao CP. High dose dual therapy versus bismuth quadruple therapy for Helicobacter pylori eradication treatment: A systematic review and meta-analysis. Medicine (Baltimore) 2019; 98:e14396. [PMID: 30762742 PMCID: PMC6408008 DOI: 10.1097/md.0000000000014396] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 01/10/2019] [Accepted: 01/14/2019] [Indexed: 01/30/2023] Open
Abstract
AIM The aim of this study was to perform a systematic review and meta-analysis on high-dose dual therapy (HDDT) versus bismuth quadruple therapy (BQT) for Helicobacter pylori infection. METHODS Comparing HDDT to BQT were identified from PubMed, EMBASE, Cochrane library, CNKI, and Wanfang databases in Chinese up to March 2018. Statistical analyses were conducted using Review Manager 5.3 to compare the efficacy and side effects of these 2 therapies for H pylori infection. Dichotomous data were pooled to score the relative risk (RR) with 95% confidence intervals (CIs). RESULTS Four randomized clinical trials (RCTs) including 829 patients with a diagnosis of H pylori infection were assessed. Overall the meta-analysis showed that both HDDT and BQT achieved similar efficacy of intention-to-treat (ITT) eradication rate, 85.5% versus 87.2%, RR 1.01 (95% CI: 0.96-1.06), P = .63, and of per-protocol (PP) eradication rate, 88.4% versus 91.5%, RR 1.00 (95% CI: 0.96-1.04), P = .99, and adherence 97.8% versus 95.0%, RR 1.01 (95% CI: 0.99-1.04), P = .32, but side effects were more likely in BQT (14.4% vs 40.4%, RR 0.42 (95% CI: 0.32-0.54), P <.00001). CONCLUSION Both HDDT and BQT can achieve similar eradication rate for H pylori infection and adherence, and generally HDDT causes fewer side effects.
Collapse
|
17
|
Pylera and sequential therapy for first-line Helicobacter pylori eradication: a culture-based study in real clinical practice. Eur J Gastroenterol Hepatol 2018; 30:621-625. [PMID: 29481383 DOI: 10.1097/meg.0000000000001102] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Italian guideline suggests 10-day sequential or bismuth-based quadruple therapies for first-line Helicobacter pylori treatment. Comparison between these regimens is lacking. We assessed the efficacy of these therapies in clinical practice and evaluated the role of primary bacterial resistance toward clarithromycin and metronidazole. PATIENTS AND METHODS Consecutive patients with H. pylori infection were enrolled. Bacterial culture with antibiotics susceptibility testing was attempted in all cases. Patients received either a sequential therapy with esomeprazole 40 mg for 10 days plus amoxicillin 1000 mg for the first 5 days followed by clarithromycin 500 mg and tinidazole 500 mg (all twice daily) for the remaining 5 days, or bismuth-based therapy with esomeprazole 20 mg twice daily and Pylera 3 tablets four times daily for 10 days. H. pylori eradication was assessed by using C-urea breath test. RESULTS A total of 495 patients were enrolled. Following sequential (250 patients) and quadruple (245 patients) therapies, the eradication rate were 92 and 91%, respectively, at intention-to-treat analysis and 96 and 97%, respectively, at per protocol analysis. Overall, the pattern of bacterial resistance did not significantly affect the cure rate, but the presence of clarithromycin and metronidazole dual resistance tended to reduce the success rate of both sequential (84.8 vs. 90.1%; P=0.4) and quadruple (85 vs. 94.1%; P=0.06) therapies. Adverse events occurred more frequently with the quadruple than with sequential therapy (56.9 vs. 25.8%; P<0.001). CONCLUSION In our country, sequential and bismuth-based quadruple therapy achieved similarly high eradication rates as first-line treatments for H. pylori infection in clinical practice.
Collapse
|
18
|
Kwon S, Lee DH, Kang JB, Kim N, Park YS, Shin CM, Yoon H, Choi YJ. [The Efficacy of Bismuth-containing Quadruple Therapy after Moxifloxacin-based Sequential Therapy Failure in Helicobacter pylori Eradication]. THE KOREAN JOURNAL OF GASTROENTEROLOGY 2018; 71:196-203. [PMID: 29684968 DOI: 10.4166/kjg.2018.71.4.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background/Aims Moxifloxacin-based sequential therapy showed an excellent eradication rate as the first line treatment of Helicobacter pylori (H. pylori) infection. However, to the best of our knowledge, there were only a few studies on the treatment of those with failed moxifloxacin-based sequential therapy. Hence, this study was to investigate the efficacy of bismuth-containing quadruple therapy in those with failed moxifloxacin-based sequential or reverse sequential therapy for H. pylori eradication. Methods Between January 2013 and March 2016, we retrospectively analyzed patients who failed to eradicate H. pylori using moxifloxacin-based sequential (rabeprazole 20 mg bid and amoxicillin 1 g bid for 5-7 days, followed by rabeprazole 20 mg bid, metronidazole 500 mg bid, and moxifloxacin 400 mg qd for 5-7 days) and 10 days moxifloxacin-based reverse sequential therapy as the first line treatment. Then we investigated the eradication rates of bismuth-containing quadruple therapy as the second line treatment. All subjects had no history of H. pylori eradication before. Eradication rates were described as intention-to-treat (ITT) and per-protocol (PP) analyses. H. pylori status was evaluated by ¹³C-urea breath test 6 weeks after the end of the treatment. Moreover, we examined any side effects that caused discontinuation of therapy. Results Twenty-three patients received bismuth-containing quadruple therapy as the second line treatment. The overall eradication rates by ITT and PP analyses were 60.87% (n=14/23) and 73.68% (n=14/19). All the patients showed good compliance, and there were no serious adverse events. Conclusions Bismuth-containing quadruple therapy is insufficient as the second line eradication treatment after a failed attempt of moxifloxacin-based sequential or reverse sequential therapy. Large-scale clinical trials should be performed to establish better clinical evidence.
Collapse
Affiliation(s)
- Soohoon Kwon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jae Bin Kang
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Nayoung Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Young Soo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Yoon Jin Choi
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| |
Collapse
|
19
|
Tursi A, Franceschi M, Allegretta L, Savarino E, De Bastiani R, Elisei W, Baldassarre G, Ferronato A, Scida S, Miraglia C, Penna A, Licci C, Rizzo GL, Pranzo G, Cassieri C, Brandimarte G, Picchio M, Di Mario F. Effectiveness and Safety of Pylera® in Patients Infected by Helicobacter Pylori: A Multicenter, Retrospective, Real Life Study. Dig Dis 2018; 36:264-268. [PMID: 29669354 DOI: 10.1159/000487391] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 01/30/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND Our aims were to assess the real life effectiveness and safety of the new bismuth-containing quadruple therapy in a large population of patients infected by Helicobacter pylori. METHODS Consecutive dyspeptic H. pylori-positive patients were enrolled, both naïve for treatment and already unsuccessfully treated. Patients were treated with Pylera® 3 capsules 4 times/daily plus omeprazole 20 mg or esomeprazole 40 mg 2 times/daily for 10 days. Eradication was confirmed using a urea-breath test (at least 30 days after the end of the treatment). Efficacy and safety were assessed. RESULTS A total of 349 patients were treated. H. pylori eradication was achieved in 316 (90.5%, 95% CIs 80.8-1.0) patients in the intention-to-treat population, and in 93.5% (95% CIs 83.5-1.0) in the per-protocol population. No difference in the eradication rate was found between naïve and previously treated patients (91.3 vs. 90.0%, p = 0.901). Adverse events occurred in 55 patients (15.8%, 95% CIs 11.9-20.1). Five patients discontinued treatment: 2 patients suffered from severe abdominal pain, one patient from headache, one patient from diarrhea, and one patient from diffuse urticarial rush. CONCLUSIONS Pylera® achieved a remarkable eradication rate in real life both as first treatment and as a rescue therapy, with a good safety profile.
Collapse
Affiliation(s)
| | | | - Leonardo Allegretta
- Division of Gastroenterology, "S. Caterina Novella" Hospital, Galatina, Italy
| | - Edoardo Savarino
- Division of Gastroenterology, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Rudi De Bastiani
- Italian Association for Gastroenterology in Primary Care (GICA-CP), Feltre, Italy
| | | | | | | | - Serena Scida
- Department of Clinical and Experimental Medicine, Gastroenterology Unit, University of Parma, Parma, Italy
| | - Chiara Miraglia
- Department of Clinical and Experimental Medicine, Gastroenterology Unit, University of Parma, Parma, Italy
| | - Antonio Penna
- Division of Gastroenterology, "S. Paolo" Hospital, Bari, Italy
| | - Claudio Licci
- Private Practice Gastroenterologist, Monopoly, Italy
| | | | - Giuseppe Pranzo
- Digestive Endoscopy Service, "Valle d'Itria" Hospital, Martina Franca, Italy
| | - Claudio Cassieri
- Division of Internal Medicine and Gastroenterology, "Cristo Re" Hospital, Rome, Italy
| | - Giovanni Brandimarte
- Division of Internal Medicine and Gastroenterology, "Cristo Re" Hospital, Rome, Italy
| | | | - Francesco Di Mario
- Department of Clinical and Experimental Medicine, Gastroenterology Unit, University of Parma, Parma, Italy
| |
Collapse
|
20
|
Branquinho D, Almeida NMPD, Gregório C, Casela A, Donato MM, Tomé L. Twelve-day quintuple regime containing four antibiotics as a rescue therapy for Helicobacter pylori eradication in the central region of Portugal. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2018; 109:430-434. [PMID: 28530108 DOI: 10.17235/reed.2017.4759/2016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Helicobacter pylori eradication rates with standard triple therapy in many countries are clinically unacceptable. Fluoroquinolone resistance is increasing and jeopardizing second-line regimens. There is a growing need for an effective strategy in patients who failed previous therapies. METHODS This is a single-center, non-randomized clinical study conducted in the central region of Portugal. Sixty-four patients were included with a positive 13C-urea breath test (UBT) or histology for H. pylori, and at least one failed eradication attempt. The patient cohort included 71.7% of females with a median of age of 52 (range 23-87). They were treated with a twelve-day regimen consisting of a proton-pump inhibitor (PPI) bid, amoxicillin at 1,000 mg 12/12 h and levofloxacin at 500 mg bid during the first seven days, followed by PPI bid, clarithromycin at 500 mg 12/12h and either tinidazole or metronidazole at 500 mg bid/tid for five days. Eradication was assessed by UBT. The local Ethics Committee approved this study. RESULTS Eradication therapy was prescribed due to dyspepsia (66.7%), peptic ulcer (10%) and thrombocytopenia (8.3%). The median number of failed therapies was one (range 1-4). The eradication rate was 64.6% according to an intention-to-treat analysis (95% CI: 53-77%), and 70% by the per-protocol analysis (95% CI: 58-82%). Age, smoking, indication for eradication, previous therapies and the use of a second-generation or full-dose PPI did not affect success rates. CONCLUSIONS Even though treatment with four antibiotics was used, this "reinforced" therapy achieved suboptimal results. This fact highlights the lack of effective H. pylori antimicrobials and suggests that second-line treatment in our region should be prescribed according to susceptibility testing.
Collapse
Affiliation(s)
- Diogo Branquinho
- Gastroenterology Department, Centro Hospitalar e Universitário de Coimbra, Portugal
| | | | - Carlos Gregório
- Gastroenterology Department, Centro Hospitalar e Universitário de Coimbra
| | - Adriano Casela
- Gastroenterology Department, Centro Hospitalar e Universitário de Coimbra
| | | | - Luís Tomé
- Gastroenterology Department, Centro Hospitalar e Universitário de Coimbra
| |
Collapse
|
21
|
Xie Y, Pan X, Li Y, Wang H, Du Y, Xu J, Wang J, Zeng Z, Chen Y, Zhang G, Wu K, Liu D, Lv N. New single capsule of bismuth, metronidazole and tetracycline given with omeprazole versus quadruple therapy consisting of bismuth, omeprazole, amoxicillin and clarithromycin for eradication of Helicobacter pylori in duodenal ulcer patients: a Chinese prospective, randomized, multicentre trial. J Antimicrob Chemother 2018; 73:1681-1687. [PMID: 29596646 DOI: 10.1093/jac/dky056] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 01/28/2018] [Indexed: 01/06/2023] Open
Affiliation(s)
- Yong Xie
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiaolin Pan
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yan Li
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Huahong Wang
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Yiqi Du
- Department of Gastroenterology, Changhai Hospital of Second Military Medical University, Shanghai, China
| | - Jianming Xu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jiangbin Wang
- Department of Gastroenterology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Zhirong Zeng
- Department of Gastroenterology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ye Chen
- Department of Gastroenterology, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Guoxin Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Kaichun Wu
- Department of Gastroenterology, Xijing Hospital of Fourth Military Medical University, Xi’an, Shanxi, China
| | - Dongsheng Liu
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Nonghua Lv
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| |
Collapse
|
22
|
Suzuki H, Mori H. World trends for H. pylori eradication therapy and gastric cancer prevention strategy by H. pylori test-and-treat. J Gastroenterol 2018; 53:354-361. [PMID: 29138921 PMCID: PMC5847180 DOI: 10.1007/s00535-017-1407-1] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 10/25/2017] [Indexed: 02/06/2023]
Abstract
Helicobacter pylori-associated gastritis leads to the development of gastric cancer. Kyoto global consensus report on H. pylori gastritis recommended H. pylori eradication therapy to prevent gastric cancer. To manage H. pylori infection, it is important to choose the appropriate regimen considering regional differences in resistance to clarithromycin and metronidazole. Quinolones and rifabutin-containing regimens are useful as third- and fourth-line rescue therapies.
Collapse
Affiliation(s)
- Hidekazu Suzuki
- Fellowship Training Center, Medical Education Center, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
| | - Hideki Mori
- Department of Gastroenterology, National Hospital Organization Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan
| |
Collapse
|
23
|
Pérez-Arellano E, Rodriguez-Garcia MI, Galera Rodenas AB, de la Morena-Madrigal E. Erradicación de la infección por Helicobacter pylori con una nueva terapia cuádruple basada en bismuto en la práctica clínica. GASTROENTEROLOGIA Y HEPATOLOGIA 2018; 41:145-152. [DOI: 10.1016/j.gastrohep.2017.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 08/03/2017] [Accepted: 08/08/2017] [Indexed: 02/07/2023]
|
24
|
Calvet X. Dealing with uncertainty in the treatment of Helicobacter pylori. Ther Adv Chronic Dis 2018; 9:93-102. [PMID: 29623181 DOI: 10.1177/2040622318758240] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 01/16/2018] [Indexed: 12/17/2022] Open
Abstract
Helicobacter pylori treatment may be viewed as an uncertain situation, where current knowledge is insufficient to provide evidence-based recommendations for all possible scenarios. Evidence suggests that, under uncertainty conditions, a few simple rules of thumb tend to work better than complex algorithms. Overall, five evidence-based rules of thumb are suggested: (1) Use four drugs; (2) Use maximal acid inhibition; (3) Treat for 2 weeks; (4) Do not repeat antibiotics after treatment failure; and (5) If your treatment works locally, keep using it. These simple rules of thumb may help the reader to select the best alternative for a given patient, choosing between the heterogeneous recommendations provided by the many different consensus conferences on H. pylori treatment recently published.
Collapse
Affiliation(s)
- Xavier Calvet
- Servei de Malalties Digestives, Hospital de Sabadell., Departament de Medicina, Universitat Autònoma de Barcelona, CIBEREHD - Instituto de Salud Carlos III, Parc Taulí, 1, 08208 Sabadell (Barcelona), Spain
| |
Collapse
|
25
|
Helicobacter pylori Antimicrobial Susceptibility Testing-Guided Salvage Therapy in the USA: A Real Life Experience. Dig Dis Sci 2018; 63:437-445. [PMID: 29264696 DOI: 10.1007/s10620-017-4880-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 12/06/2017] [Indexed: 01/10/2023]
Abstract
BACKGROUND The current practice guidelines recommend that Helicobacter pylori (H. pylori) culture and antimicrobial susceptibility testing (AST) be considered after patients failed the second course of H. pylori eradication therapy. AIMS Here we report the real life experience of following this recommendation in the USA. METHODS We established an in-house H. pylori culture protocol for AST and identified retrospectively patients who previously failed ≥ 2 courses of anti-H. pylori therapy and underwent esophagogastroduodenoscopy with AST at University of Michigan from 2010 to 2017. We determined the rate of H. pylori antibiotic resistance, the success rates of AST-guided tailored therapy, and the risk factors associated with treatment failure. RESULTS Forty-seven patients were identified and 34 (72.3%) had successful cultures and AST. The most common antibiotic resistance was to metronidazole (79.4%), followed by clarithromycin (70.6%) and ciprofloxacin (42.9%). None of the patients were resistant to amoxicillin or tetracycline. The overall success rate of AST-guided tailored therapy was low (44.4%, 12/27). In patients infected with metronidazole-resistant H. pylori, bismuth quadruple therapy appears to be superior compared to non-bismuth quadruple therapy (6/8 or 75.0% vs. 3/14 or 21.4%, P = 0.03). High body mass index was significantly associated with tailored therapy failure (OR 1.24, 95% CI 1.00-1.54, P = 0.049). CONCLUSIONS The success rate of AST-guided salvage therapy in the USA is low particularly in those with high BMI. Bismuth-based therapy appears to be better than non-bismuth-based regimens.
Collapse
|
26
|
De Francesco V, Pontone S, Bellesia A, Serviddio G, Panetta C, Palma R, Zullo A. Quadruple, sequential, and concomitant first-line therapies for H. pylori eradication: a prospective, randomized study. Dig Liver Dis 2018; 50:139-141. [PMID: 29089267 DOI: 10.1016/j.dld.2017.10.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 09/06/2017] [Accepted: 10/10/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Current Italian guidelines recommend 10-day bismuth-based or bismuth-free (sequential and concomitant) regimens for first-line H. pylori eradication. However, comparison among these regimens is lacking in our country. AIM To perform a 'head-to-head' comparison among these three therapies as first-line treatment for H. pylori eradication in clinical practice. METHODS This was a prospective, open-label randomized study enrolling consecutive patients diagnosed with H. pylori infection never previously treated. Patients were randomized to receive one of the following 10-day therapies: (a) Bismuth-based therapy: esomeprazole 20mg b.i.d and Pylera 3 tablets q.i.d; (b) Concomitant therapy: esomeprazole 20mg plus amoxicyllin 1,000mg, clarithromycin 500mg and tinidazole 500mg (all b.i.d.), and (c) Sequential therapy: esomeprazole 20mg plus amoxicyllin 1,000mg for 5days followed by esomeprazole 20mg plus clarithromycin 500mg and tinidazole 500mg for 5days (all b.i.d). H. pylori eradication was assessed by using UBT 4-6 weeks after the end of therapy. RESULTS Overall, 187 patients were enrolled. The eradication rates achieved with Pylera, concomitant and sequential were 85.2%, 95.2%, and 93.6%, respectively, at intention to treat, and 94.5%, 96.7%, and 95.1% at per protocol analyses, without a statistically significant difference. The incidence of severe side-effects was higher with the bismuth-based therapy than with the two bismuth-free regimens (9.8% vs 1.6%; p=0.046). CONCLUSIONS Bismuth-based and bismuth-free therapies are equally effective for first-line H. pylori eradication. However, bismuth therapy was more frequently interrupted for side-effects than bismuth-free therapies.
Collapse
Affiliation(s)
- Vincenzo De Francesco
- Section of Gastroenterology and Department of Medical Sciences, University of Foggia, Foggia, Italy.
| | - Stefano Pontone
- Department of Surgical Sciences, "Sapienza" University of Rome, Italy
| | - Annamaria Bellesia
- Section of Gastroenterology and Department of Medical Sciences, University of Foggia, Foggia, Italy
| | - Gaetano Serviddio
- Cure University Centre for Liver Disease Research and Treatment, Institute of Internal Medicine, Department of Medical and Surgical Sciences, University of Foggia, Italy
| | - Cristina Panetta
- Department of Surgical Sciences, "Sapienza" University of Rome, Italy
| | - Rossella Palma
- Department of Surgical Sciences, "Sapienza" University of Rome, Italy
| | - Angelo Zullo
- Gastroenterology,'Nuovo Regina Margherita' Hospital, Rome, Italy
| |
Collapse
|
27
|
Zuo Y, Wang S, Cui X, Lv H. Therapeutic Endoscopy in Combination with Quadruple Therapy in Treating Bleeding Caused by Gastric Ulcer. Pak J Med Sci 2018; 34:10-14. [PMID: 29643870 PMCID: PMC5856990 DOI: 10.12669/pjms.341.13418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Objective: To analyze the efficacy of therapeutic endoscopy in combination with quadruple therapy in treating bleeding caused by gastric ulcer and investigate the factors inducing rebleeding. Methods: Two hundred and twelve patients with bleeding caused by gastric ulcer who were admitted to Binzhou People's Hospital, Shandong, China between April 2015 and April 2016 were selected as research subjects. The patients were randomly divided into a control group and an experimental group. Patients in the control group were treated by quadruple therapy, while patients in the observation group received therapeutic endoscopy treatment in addition to the same treatment as the control group. The treatment efficacy, adverse reaction, H pylori (Hp) clearance rate and rebleeding were compared between the two groups. Results: The effective rate of the observation group was 98.1%, which was significantly higher than that of the control group (80.2%), and the difference had statistical significance (P<0.05). The incidence of adverse reactions in the observation group was lower than that in the control group. The Hp clearance rate of the observation group was higher than that of the control group, and the difference had statistical significance (P<0.05). The multi-factor analysis on rebleeding suggested that whether therapeutic endoscopy was performed or not, hemoglobin level and presence of peptic ulcer stage A1 were independent risk factors. Conclusion: Endoscopic treatment in combination with quadruple therapy is better in the treatment of bleeding caused by gastric ulcer as compared to medical treatment alone. Patients with high-risk factors such as low content of hemoglobin and ulcer at stage A1 should be monitored more carefully to prevent the occurrence of rebleeding.
Collapse
Affiliation(s)
- Yuqin Zuo
- Yuqin Zuo, Department of Gastroenterology, Binzhou People's Hospital, Shandong, 256600, China
| | - Shuhui Wang
- Shuhui Wang, Department of Ophthalmology, Binzhou People's Hospital, Shandong, 256600, China
| | - Xiujuan Cui
- Xiujuan Cui, Department of Neurosurgery, Binzhou People's Hospital, Shandong, 256600, China
| | - Hongna Lv
- Hongna Lv, Department of Gastroenterology, Binzhou People's Hospital, Shandong, 256600, China
| |
Collapse
|
28
|
Miehlke S, Frederking D, Günther T, Glocker E, Eisele B, Andresen V, Schröder S, Morgner A. Efficacy of three-in-one capsule bismuth quadruple therapy for Helicobacter pylori eradication in clinical practice in a multinational patient population. Helicobacter 2017; 22. [PMID: 28833925 DOI: 10.1111/hel.12429] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Bismuth quadruple therapy (BQT) has been proven superior to standard triple therapy for Helicobacter pylori eradication in randomized clinical trials; however, little is known about the efficacy of BQT in daily routine practice. METHODS In a single-center cohort study, we analyzed consecutive H. pylori-positive patients in whom three-in-one capsule BQT (Pylera® + omeprazole) has been prescribed. All patients were instructed in a standardized fashion, and a prospective follow-up was planned. PCR on gastric biospies for clarithromycin and levofloxacin resistance was performed before treatment in a subgroup of patients. Treatment outcome was assessed by 13C urea breath test or by histology not earlier than 4 weeks after end of treatment. RESULTS Three-in-one capsule BQT has been prescribed in 322 patients. Approximately 70.2% of patients had a migrational background. PCR results were available in 163 patients and identified resistance to clarithromycin and levofloxacin in 29 (17.8%) and 20 (12.3%) of cases, respectively. BQT was prescribed as first-line, second-line, and salvage treatments in 74%, 17%, and 9% of cases, respectively. Five patients discontinued treatment due to side effects (1.8%). By modified intention-to-treat and per-protocol analyzes, the overall H. pylori eradication rates were 95.0% (95% CI 94.92%-95.08%) and 96.7% (95% CI 94.6%-98.8%), respectively. The low number of treatment failures (n = 9) did not allow to identify risk factors for failure. CONCLUSION Three-in-one capsule bismuth quadruple therapy is effective and safe for treatment of H. pylori infection in routine practice, irrespective of the patient's migrational background or the number of previous treatment failures.
Collapse
Affiliation(s)
- Stephan Miehlke
- Center of Digestive Diseases, Internal Medicine Center Eppendorf, Hamburg, Germany
| | - Dorothea Frederking
- Center of Digestive Diseases, Internal Medicine Center Eppendorf, Hamburg, Germany
| | | | - Erik Glocker
- Institute of Laboratory Medicine, Brandenburg Medical School, Brandenburg Hospital, Brandenburg, Germany.,Department of Medical Microbiology and Hygiene, University Hospital Freiburg, Freiburg, Germany
| | - Bianca Eisele
- Department of Medical Microbiology and Hygiene, University Hospital Freiburg, Freiburg, Germany
| | - Viola Andresen
- Department of Medicine, Israelitic Hospital, Hamburg, Germany
| | | | - Andrea Morgner
- University Cancer Center, University Hospital, Hamburg, Germany
| |
Collapse
|
29
|
Rodríguez de Santiago E, Martín de Argila de Prados C, Marcos Prieto HM, Jorge Turrión MÃ, Barreiro Alonso E, Flores de Miguel A, de la Coba Ortiz C, Rodríguez Escaja C, Pérez Álvarez G, Ferre Aracil C, Aguilera Castro L, García García de Paredes A, Rodríguez Pérez A, Albillos Martínez A. Limited effectiveness with a 10-day bismuth-containing quadruple therapy (Pylera ® ) in third-line recue treatment for Helicobacter pylori infection. A real-life multicenter study. Helicobacter 2017; 22. [PMID: 28771880 DOI: 10.1111/hel.12423] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Helicobacter pylori antibiotic resistance is an increasing problem worldwide. Pylera® may be an option as salvage therapy. AIM To assess the effectiveness, safety, and tolerance of Pylera® as a third-line in clinical practice. MATERIALS AND METHODS This was a multicenter, observational, prospective database study in four Spanish hospitals. Consecutive H. pylori-infected individuals treated with Pylera® and a proton-pump inhibitor (PPI) were invited to participate if they had failed to respond to PPI-clarithromycin-amoxicillin as first-line and to levofloxacin-amoxicillin-PPI as second-line therapy. Eradication was tested 4-8 weeks after Pylera® using a C13 -urea breath test. Treatment-related adverse effects (TRAEs) were assessed through a questionnaire and by reviewing databases. A questionnaire on patient satisfaction was completed in the last visit. RESULTS Of 103 subjects fulfilling the selection criteria, 101 were included in the intention-to-treat (ITT) analysis and 97 in the per-protocol (PP) analysis. A 10 day course was prescribed in all patients. Esomeprazole 40 mg b.i.d. was the most used PPI regimen (ITT=94.1%). Ninety-seven individuals (ITT=96.04%) completed more than 90% of the treatment. Overall eradication rates were ITT=80.2% (95% confidence interval [CI]: 72.3%-88.1%) and PP=84.4% (95% CI: 76.8%-91.8%). One or more TRAEs were experienced by 67.3% (95% CI: 57.7%-75.7%), all mild or moderate. TRAEs and the number of pills were the main complaints. CONCLUSION In an area of high antibiotic resistance to H. pylori, 10-day Pylera® plus double-dose PPI emerged as an alternative as third-line therapy, although not achieving optimal eradication rates. TRAEs were common but were neither severe nor did they condition compliance.
Collapse
Affiliation(s)
- Enrique Rodríguez de Santiago
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, University of Alcalá, Madrid, Spain
| | - Carlos Martín de Argila de Prados
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, University of Alcalá, Madrid, Spain.,IRYCIS, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, Madrid, Spain
| | - Hector Miguel Marcos Prieto
- Gastroenterology department, Hospital Universitario de Salamanca, University of Salamanca, IBSAL, Salamanca, Spain
| | - Miguel Ãngel Jorge Turrión
- Department of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | - Alvaro Flores de Miguel
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, University of Alcalá, Madrid, Spain
| | | | - Carlos Rodríguez Escaja
- Department of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Gustavo Pérez Álvarez
- Department of Gastroenterology and Hepatology, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Carlos Ferre Aracil
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, University of Alcalá, Madrid, Spain
| | - Lara Aguilera Castro
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, University of Alcalá, Madrid, Spain
| | - Ana García García de Paredes
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, University of Alcalá, Madrid, Spain
| | - Antonio Rodríguez Pérez
- Gastroenterology department, Hospital Universitario de Salamanca, University of Salamanca, IBSAL, Salamanca, Spain
| | - Agustin Albillos Martínez
- Department of Gastroenterology and Hepatology, Hospital Universitario Ramón y Cajal, University of Alcalá, Madrid, Spain.,IRYCIS, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Instituto de Salud Carlos III, Madrid, Spain
| |
Collapse
|
30
|
Abstract
This review summarizes important studies regarding Helicobacter pylori therapy published from April 2016 to April 2017. The main themes that emerge involve studies assessing the efficacy of bismuth and nonbismuth quadruple regimens. While in recent years, much of the emphasis on the use of bismuth has focussed on its utility in a second-line setting, an increasing number of studies this year have shown excellent efficacy in first-line therapy. The efficacy of bismuth as a second-line after sequential and concomitant therapy was particularly noteworthy. Antibiotic resistance was more intensely studied this year than for a long time, and definite trends are presented regarding an increase in resistance, including the fact that clarithromycin resistance in particular is now at a level where the continued use of clarithromycin triple therapy first-line as a mainstream treatment is not recommended. Another exciting trend to emerge this year is the utility of vonoprazan as an alternative to PPI therapy, especially in resistant and difficult-to-treat groups.
Collapse
Affiliation(s)
- Anthony O'Connor
- Department of Gastroenterology, Tallaght Hospital/Trinity College Dublin, Dublin, Ireland
| | | | - Javier P Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Colm O'Morain
- Department of Gastroenterology, Tallaght Hospital/Trinity College Dublin, Dublin, Ireland
| |
Collapse
|
31
|
Pylera® (bismuth subcitrate potassium/metronidazole/tetracycline hydrochloride) in the eradication of Helicobacter pylori infection: a profile of its use in Europe. DRUGS & THERAPY PERSPECTIVES 2017. [DOI: 10.1007/s40267-017-0417-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
32
|
Tursi A, Di Mario F, Franceschi M, De Bastiani R, Elisei W, Baldassarre G, Ferronato A, Grillo S, Landi S, Zamparella M, De Polo M, Boscariolo L, Picchio M. New bismuth-containing quadruple therapy in patients infected with Helicobacter pylori: A first Italian experience in clinical practice. Helicobacter 2017; 22. [PMID: 28125857 DOI: 10.1111/hel.12371] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Rising antibiotic resistance requires the evaluation of new and effective therapies. AIMS To test the efficacy and safety of the new bismuth-containing quadruple therapy in patients infected with Helicobacter pylori. MATERIAL AND METHODS Consecutive H. pylori-positive dyspeptic patients were enrolled, either naïve or with previous failure treatment. Patients were treated with Pylera® (three-in-one capsules containing bismuth subcitrate potassium 140 mg, metronidazole 125 mg, and tetracycline 125 mg) three capsules q.i.d. plus omeprazole 20 mg or esomeprazole 40 mg b.i.d. for 10 days. Eradication was confirmed using an urea breath test (at least 30 days after the end of treatment). Efficacy was assessed by UBT and safety by means of treatment-emergent adverse events. RESULTS One hundred and thirty-one patients were included in the study: 42% of patients were naïve, and 58%, with previous failure treatment. H. pylori eradication was achieved in 124 patients (94.7%, 95% confidence intervals (CIs) 89.3-97.8) in ITT population. In the PP population, the percentage was 97.6% (95%, CIs 93.3-99.2). No difference in eradication rate was found either between naïve and previously treated patients (92.7% vs 96.0%, P=.383), or smoking and nonsmoking ones, or in patients taking omeprazole or esomeprazole. Treatment-emergent adverse events occurred in 35 patients (26.7%, 95% CIs 19.9-34.9). They were mild in all cases except in four, who discontinued the study due to diarrhea (three patients) and diffuse urticarial rush (one patient). CONCLUSIONS Pylera® achieved a remarkable eradication rate in clinical practice, irrespective if it was used as first treatment or as a rescue therapy. Treatment-emergent adverse events were uncommon generally mild.
Collapse
Affiliation(s)
- Antonio Tursi
- Gastroenterology Service, ASL BAT, Andria (BT), Italy
| | - Francesco Di Mario
- Department of Clinical & Experimental Medicine, Gastroenterology Unit, University of Parma, Parma, Italy
| | | | - Rudi De Bastiani
- Italian Association for Gastroenterology in Primary Care (GICA-CP), Feltre (BL), Italy
| | - Walter Elisei
- Division of Gastroenterology, ASL RM6, Albano Laziale (Roma), Italy
| | | | - Antonio Ferronato
- Digestive Endoscopy Unit, ULSS4 Alto Vicentino, Santorso, Schio (VI), Italy
| | - Simone Grillo
- Department of Clinical & Experimental Medicine, Gastroenterology Unit, University of Parma, Parma, Italy
| | - Stefano Landi
- Department of Clinical & Experimental Medicine, Gastroenterology Unit, University of Parma, Parma, Italy
| | - Maria Zamparella
- Italian Association for Gastroenterology in Primary Care (GICA-CP), Feltre (BL), Italy
| | - Manuela De Polo
- Italian Association for Gastroenterology in Primary Care (GICA-CP), Feltre (BL), Italy
| | - Laura Boscariolo
- Italian Association for Gastroenterology in Primary Care (GICA-CP), Feltre (BL), Italy
| | - Marcello Picchio
- Division of Surgery, "P. Colombo" Hospital, ASL RM6, Velletri (Rome), Italy
| |
Collapse
|
33
|
Wang L, Lin Z, Chen S, Li J, Chen C, Huang Z, Ye B, Ding J, Li W, Wu L, Jiang Y, Meng L, Du Q, Si J. Ten-day bismuth-containing quadruple therapy is effective as first-line therapy for Helicobacter pylori –related chronic gastritis: a prospective randomized study in China. Clin Microbiol Infect 2017; 23:391-395. [DOI: 10.1016/j.cmi.2016.12.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Revised: 12/25/2016] [Accepted: 12/28/2016] [Indexed: 12/14/2022]
|
34
|
Synthesis of polymeric bismuth chlorido hydroxamato complexes; X-ray crystal structure and antibacterial activity of a novel Bi(III) salicylhydroxamato complex. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.09.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
35
|
Gómez Rodríguez BJ, Castro Laria L, Argüelles Arias F, Castro Márquez C, Caunedo Álvarez Á, Romero Gómez M. A real life study of Helicobacter pylori eradication with bismuth quadruple therapy in naïve and previously treated patients. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2017; 109:552-558. [DOI: 10.17235/reed.2017.4809/2016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
36
|
Abstract
Helicobacter pylori infects about 50 % of the world's population, causing at a minimum chronic gastritis. A subset of infected patients will ultimately develop gastric or duodenal ulcer disease, gastric adenocarcinoma, or MALT (mucosa-associated lymphoid tissue) lymphoma. Eradication of H. pylori requires complex regimens that include acid suppression and multiple antibiotics. The efficacy of treatment using what were once considered standard regimens have declined in recent years, mainly due to widespread development of antibiotic resistance. Addition of bismuth to standard triple therapy regimens, use of alternate antibiotics, or development of alternative regimens using known therapies in novel combinations have improved treatment efficacy in specific populations, but overall success of eradication remains less than ideal. Novel regimens under investigation either in vivo or in vitro, involving increased acid suppression ideally with fewer antibiotics or development of non-antibiotic treatment targets, show promise for future therapy.
Collapse
Affiliation(s)
- Elizabeth A Marcus
- Department of Pediatrics, DGSOM at UCLA, Los Angeles, CA, USA.
- VA GLAHS, 11301 Wilshire Blvd. Bldg 113 Rm 324, Los Angeles, CA, 90073, USA.
| | - George Sachs
- Department of Physiology, DGSOM at UCLA, Los Angeles, CA, USA
- Department of Medicine, DGSOM at UCLA, Los Angeles, CA, USA
- VA GLAHS, 11301 Wilshire Blvd. Bldg 113 Rm 324, Los Angeles, CA, 90073, USA
| | - David R Scott
- Department of Physiology, DGSOM at UCLA, Los Angeles, CA, USA
- VA GLAHS, 11301 Wilshire Blvd. Bldg 113 Rm 324, Los Angeles, CA, 90073, USA
| |
Collapse
|