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Yang EH, Chen WY, Chiang HC, Li CH, Wu IH, Chen PJ, Wu CT, Tsai YC, Cheng WC, Huang CJ, Sheu BS, Cheng HC. 10-Day versus 14-day bismuth quadruple therapy for first-line eradication of Helicobacter pylori infection: a randomised, open-label, non-inferiority trial. EClinicalMedicine 2024; 70:102529. [PMID: 38500841 PMCID: PMC10945111 DOI: 10.1016/j.eclinm.2024.102529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/04/2024] [Accepted: 02/21/2024] [Indexed: 03/20/2024] Open
Abstract
Background Bismuth quadruple therapy is currently consensus recommendation for first-line Helicobacter pylori (H. pylori) treatment; however, the optimal duration is unknown. We compared the efficacy of 10-day bismuth quadruple therapy with that of 14-day bismuth quadruple therapy for first-line eradication. Methods For our multicentre, parallel randomised, open-label, and non-inferiority study, we recruited H. pylori treatment-naïve patients from one medical centre and one teaching hospital in Taiwan. Patients were randomly assigned (1:1) to receive 10-day (PBMT-10) or 14-day (PBMT-14) bismuth quadruple therapy. The primary outcome was the eradication rate as determined by intention-to-treat (ITT) and per-protocol (PP) analyses. The eradication rates between the two groups were compared using a one-sided α value of 0.025 and a non-inferiority margin of 7%. The secondary outcomes were the rate of adverse effects. The trial is registered with ClincialTrials.gov (NCT04527055). Findings From August 3, 2020 to April 28, 2023, 313 H. pylori treatment-naïve patients (PBMT-10 = 157; PBMT-14 = 156) were enrolled. 35 patients were excluded from PP analyses. The eradication rates (95% CI) for PBMT-10 and PBMT-14 were respectively 92.4% (88.2%-96.5%) and 92.9% (88.9%-97.0%) by ITT analyses, and 97.9% (95.5%-100.0%) and 99.3% (97.8%-100.0%) by PP analyses. The eradication rates for PBMT-10 were non-inferior to those for PBMT-14 (absolute difference [lower boundary of the one-sided 97.5% CI] -0.6% [-6.7%], PNI = 0.020 in ITT analyses, -1.4% [-5.8%], PNI = 0.007 in PP analyses). The rates of overall adverse effects (54.1% versus 57.1%, P = 0.604) were similar between the two groups; nevertheless, the rates of dizziness (18.5% versus 34.0%, P = 0.003) and vomiting (4.5% versus 12.8%, P = 0.008) were lower in PBMT-10 than in PBMT-14. Interpretation The 10-day bismuth quadruple therapy was non-inferior to the 14-day therapy as a first-line treatment for eradicating H. pylori infection and had no different rates of overall adverse effects, but less serious adverse events in terms of dizziness and vomiting. Funding The National Science and Technology Council and Ministry of Health and Welfare, Taiwan.
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Affiliation(s)
- Er-Hsiang Yang
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Wei-Ying Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsueh-Chien Chiang
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Hao Li
- Department of Family Medicine, An Nan Hospital, China Medical University, Tainan, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - I-Hsuan Wu
- Department of Family Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Health Management Centre, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Jun Chen
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Tai Wu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Ching Tsai
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Gastroenterology and Hepatology, Tainan Hospital, Ministry of Health and Welfare, Tainan, Taiwan
| | - Wei-Chun Cheng
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Public Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Gastroenterology and Hepatology, Tainan Hospital, Ministry of Health and Welfare, Tainan, Taiwan
| | - Chien-Jui Huang
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Bor-Shyang Sheu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsiu-Chi Cheng
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Institute of Molecular Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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Wu X, Duan M, Kong Q, Zeng S, Xu L, Li Y, Yang X, Zuo X. Clarifying varied Helicobacter pylori eradication therapies: A comprehensive review. Helicobacter 2024; 29:e13048. [PMID: 38716864 DOI: 10.1111/hel.13048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/30/2023] [Accepted: 12/12/2023] [Indexed: 05/24/2024]
Abstract
Current global variations exist in Helicobacter pylori (H. pylori) eradication regimens. Triple therapy (TT), bismuth quadruple therapy (BQT), and high-dose dual therapy (HDDT) currently represent the predominant regimens. These regimens diverge in terms of treatment duration, the utilization of susceptibility testing, acid-inhibiting drug administration, and patient education. We conducted a comprehensive systematic literature review on these H. pylori treatment regimens. Our review aims to provide standardized treatment recommendations for H. pylori, reducing the risk of amalgamating findings from diverse eradication regimens. Recent research suggests that the optimal treatment duration for TT and BQT may be 14 and 10 days, respectively. Selecting the appropriate treatment duration for HDDT should rely on regional research evidence, and 14 days may be the optimal duration. The incorporation of susceptibility testing in TT is of paramount importance. In the case of BQT, the absence of susceptibility testing may be considered as an option, contingent upon cost and availability, and should be determined based on local antibiotic resistance patterns and the efficacy of empirical regimens. The type and dosage of acid-inhibiting drug would affect the efficacy of these regimens. Acid-inhibiting drugs should be selected and applied reasonably according to the population and therapies. Adequate patient education plays a pivotal role in the eradication of H. pylori. In regions with accessible local research evidence, the 10-day empirical BQT regimen may be considered a preferred choice for H. pylori eradication.
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Affiliation(s)
- Xiaoqi Wu
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Miao Duan
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Qingzhou Kong
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Shuyan Zeng
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Leiqi Xu
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Yueyue Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiaoyun Yang
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Xiuli Zuo
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
- Laboratory of Translational Gastroenterology, Qilu Hospital of Shandong University, Jinan, Shandong, China
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Lu L, Wang Y, Ye J, Han Y, Lou G, Li Y, Yan H, Du Q. Quadruple therapy with vonoprazan 20 mg daily as a first-line treatment for Helicobacter pylori infection: A single-center, open-label, noninferiority, randomized controlled trial. Helicobacter 2023; 28:e12940. [PMID: 36458325 PMCID: PMC10078362 DOI: 10.1111/hel.12940] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/23/2022] [Accepted: 11/15/2022] [Indexed: 12/09/2022]
Abstract
BACKGROUND Although vonoprazan has been proven to be a highly potent drug for Helicobacter pylori eradication, there have been no randomized trials comparing the effectiveness of regimens containing vonoprazan 20 mg daily with alternative standard strategies. We aimed to assess the efficacy, tolerance, and cost-effectiveness of quadruple therapy with vonoprazan 20 mg daily as a first-line therapy for H. pylori eradication. MATERIALS AND METHODS We conducted a single-center, open-label, noninferiority, randomized controlled study in Zhejiang, China. Treatment-naive H. pylori-positive participants (n = 234) were randomly assigned to three groups in a 1:1:1 ratio: vonoprazan 20 mg daily with amoxicillin 1000 mg, furazolidone 100 mg and colloidal bismuth 200 mg each given twice a day for 10 days (V10) or 14 days (V14), or esomeprazole 20 mg with amoxicillin 1000 mg, furazolidone 100 mg and colloidal bismuth 200 mg each given twice a day for 14 days (E14). The primary endpoint was the eradication rates in each group. The secondary endpoints were the incidence of adverse events (AEs) and compliance. RESULTS The eradication rates in the V10, V14 and E14 groups were 96.2% (89.2-99.2%), 94.9% (87.4-98.6%), and 93.6% (85.7-97.9%) in the intention-to-treat analysis, and 98.6% (92.7-100.0%), 97.4% (90.8-99.7%), and 94.8% (87.2-98.6%) in the per-protocol analysis, respectively. Quadruple therapy with vonoprazan 20 mg daily was noninferior to the esomeprazole-based regimen (Farrington and Manning test: margin 10%, significance level 2.5%). The adverse event rates were 12.8% versus 3.8% versus 6.4% in the V10, V14, and E14 groups, respectively. All regimens were well tolerated without significant differences (p = 0.096). The cost-effectiveness ratio was 1.32, 1.88, and 3.06 for the V10, V14, and E14 groups in the intention-to-treat analysis, respectively. (NCT04907747). CONCLUSIONS Vonoprazan (20 mg daily) was as effective as esomeprazole (20 mg twice a day) in quadruple therapies for the eradication of H. pylori, was more economical, and was well tolerated. In addition, the 10-day regimen of vonoprazan (20 mg daily) was comparable to the 14-day regimen.
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Affiliation(s)
- Lifen Lu
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yujing Wang
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Ye
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuehua Han
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guochun Lou
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Li
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Huihui Yan
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qin Du
- Department of Gastroenterology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Dore MP, Saba F, Zanni L, Rocca A, Piroddu J, Gutierrez G, Pes GM. A Simplified Low-Dose 10-Day Quadruple Therapy with a Galenic Formulation of Bismuth Salicylate Is Highly Effective for Helicobacter pylori Eradication. J Clin Med 2023; 12:jcm12020681. [PMID: 36675610 PMCID: PMC9861798 DOI: 10.3390/jcm12020681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Earlier studies have shown that a modified low-dose bismuth quadruple therapy given for 10 to 14 days is highly effective for the treatment of Helicobacter pylori infection in Sardinia. However, bismuth is not universally available. AIM We aimed to investigate the efficacy of a simplified low-dose 10-day quadruple therapy containing a galenic formulation of bismuth salicylate for H. pylori infection. PATIENTS AND METHODS Adult patients positive for H. pylori infection were assigned to a quadruple therapy containing a galenic formulation of bismuth salicylate (200 mg) plus tetracycline 500 mg, metronidazole 500 mg and rabeprazole 20 mg, given twice a day with the midday and evening meals for 10 days. A negative stool antigen test or 13C-Urea Breath Test defined successful eradication. Compliance and adverse events were recorded 30-40 days after the end of treatment. RESULTS In this open-label pilot study, 42 patients were enrolled (mean age 54.1 ± 12.0 years; 64% female). Among the study participants, 35 were naïve to H. pylori treatment. The treatment regimen was completed by 41 patients, with an overall success rate of 95.1%. More specifically, the eradication rate was 95.1% PP; 95% confidence interval (CI) = 86.6-100 and 92.9% by ITT; 95%CI = 85.1-100%, respectively. For naïve patients, the cure rate was 97.1%. Compliance was excellent. Side effects were absent or mild overall. CONCLUSIONS The modified low-dose 10-day quadruple therapy provided high eradication rates of H. pylori infection, despite the replacement of colloidal bismuth subcitrate with bismuth salicylate. In regions where bismuth is unavailable in the market, the galenic formulation should be a valid option.
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Affiliation(s)
- Maria Pina Dore
- Dipartimento di Medicina, Chirurgia e Farmacia, Clinica Medica, University of Sassari, Viale San Pietro 8, 07100 Sassari, Italy
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza Blvd, Houston, TX 77030, USA
- Correspondence: ; Tel.: +39-079-229886
| | - Francesco Saba
- Dipartimento di Medicina, Chirurgia e Farmacia, Clinica Medica, University of Sassari, Viale San Pietro 8, 07100 Sassari, Italy
| | - Lucia Zanni
- Dipartimento di Medicina, Chirurgia e Farmacia, Clinica Medica, University of Sassari, Viale San Pietro 8, 07100 Sassari, Italy
| | - Anna Rocca
- Dipartimento di Medicina, Chirurgia e Farmacia, Clinica Medica, University of Sassari, Viale San Pietro 8, 07100 Sassari, Italy
| | - Jessica Piroddu
- Dipartimento di Medicina, Chirurgia e Farmacia, Clinica Medica, University of Sassari, Viale San Pietro 8, 07100 Sassari, Italy
| | | | - Giovanni Mario Pes
- Dipartimento di Medicina, Chirurgia e Farmacia, Clinica Medica, University of Sassari, Viale San Pietro 8, 07100 Sassari, Italy
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Ding YM, Li YY, Liu J, Wang J, Wan M, Lin MJ, Lin BS, Zhang WL, Kong QZ, Wang ST, Mu YJ, Duan M, Han ZX, Zuo XL, Li YQ. The cure rate of 10-day bismuth-containing quadruple therapy for Helicobacter pylori eradication is equivalent to 14-day: a systematic review and meta-analysis. Clin Exp Med 2022:10.1007/s10238-022-00953-7. [PMID: 36538198 DOI: 10.1007/s10238-022-00953-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Accepted: 11/16/2022] [Indexed: 12/24/2022]
Abstract
Helicobacter pylori (H. pylori) infection is a major cause of duodenal ulcers, gastric ulcers, and gastric cancer. However, the optimal duration for H. pylori eradication therapy remains controversial. Most studies have mainly focused on triple therapy, and there is insufficient research on bismuth-containing quadruple therapy. The aim of this study was to compare the clinical effect of the 10-day bismuth-containing quadruple treatment regimen with the 14-day regime in eradicating H. pylori. We searched PubMed, Embase, Web of Science, and the Cochrane Library for randomized controlled trials published in English until May 2022 according to the eligibility criteria. Summary risk ratios (RRs) and 95% confidence intervals (CIs) for eradication rates, adverse effects, and compliance were calculated for included studies. Four studies, involving 1173 patients, were eligible for inclusion. The eradication rate was similar in the 10-day treatment group and the 14-day treatment group in the intention-to-treat analysis (RR 0.97, 95% CI 0.93 to 1.01). Meanwhile, the incidence of adverse effects was lower in patients who received 10 days of treatment than in those who received 14 days of treatment and patients' compliance was almost the same between two groups. Compared to the 14-day bismuth-containing quadruple regimens, 10-day regimens had similar efficacy and lower incidence of adverse effects. Therefore, the 10-day regimen is safe and well-tolerated and should be recommended for H. pylori infection.
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Aumpan N, Mahachai V, Vilaichone R. Management of Helicobacter pylori infection. JGH Open 2022; 7:3-15. [PMID: 36660052 PMCID: PMC9840198 DOI: 10.1002/jgh3.12843] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/27/2022] [Accepted: 11/06/2022] [Indexed: 11/23/2022]
Abstract
Helicobacter pylori infection exhibits a wide disease spectrum ranging from asymptomatic gastritis, peptic ulcer disease, to gastric cancer. H. pylori can induce dysbiosis of gastric microbiota in the pathway of carcinogenesis and successful eradication can restore gastric homeostasis. Diagnostic testing and treatment for H. pylori infection is recommended in patients with active or past history of peptic ulcer, chronic dyspepsia, chronic non-steroidal anti-inflammatory drugs (NSAID) or aspirin use, precancerous gastric lesions, gastric cancer, mucosa-associated lymphoid tissue (MALT) lymphoma, family history of gastric cancer, family history of peptic ulcers, household family member having active H. pylori infection, iron deficiency anemia, idiopathic thrombocytopenic purpura, or vitamin B12 deficiency. Recommended first-line regimens for H. pylori eradication are classified according to clarithromycin resistance. In areas of high clarithromycin resistance (≥15%), we recommend 14-day concomitant therapy or 14-day bismuth quadruple therapy (BQT) as first-line regimen. In areas of low clarithromycin resistance (<15%), we recommend 14-day triple therapy or 14-day BQT as first-line treatment. Second-line regimens are 14-day levofloxacin triple therapy or 14-day BQT if BQT is not previously used. For patients with multiple treatment failure, antimicrobial susceptibility testing (AST) should be performed. If AST is not available, we recommend using antibiotics not previously used or for which resistance is unlikely, such as amoxicillin, tetracycline, bismuth, or furazolidone. High-dose potent proton pump inhibitor or vonoprazan is recommended to achieve adequate acid suppression. Probiotics can be used as an adjuvant treatment to reduce the side effects of antibiotics and enhance eradication rate.
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Affiliation(s)
- Natsuda Aumpan
- Center of Excellence in Digestive Diseases and Gastroenterology Unit, Department of MedicineThammasat UniversityPathumthaniThailand,Department of MedicineChulabhorn International College of Medicine (CICM) at Thammasat UniversityPathumthaniThailand
| | - Varocha Mahachai
- Center of Excellence in Digestive Diseases and Gastroenterology Unit, Department of MedicineThammasat UniversityPathumthaniThailand,Department of MedicineChulabhorn International College of Medicine (CICM) at Thammasat UniversityPathumthaniThailand
| | - Ratha‐korn Vilaichone
- Center of Excellence in Digestive Diseases and Gastroenterology Unit, Department of MedicineThammasat UniversityPathumthaniThailand,Department of MedicineChulabhorn International College of Medicine (CICM) at Thammasat UniversityPathumthaniThailand,Division of Gastroentero‐Hepatology, Department of Internal Medicine, Faculty of MedicineUniversitas AirlanggaSurabayaIndonesia
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Li C, Ji M, Zhang K, Sun S, Jiang J. Dinuclear bismuth (III) complex constructed by isoniazid‐derived Schiff‐base: synthesis, crystal structure, and biological activity. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chuan‐Hua Li
- Hunan Provincial Key Laboratory of Xiangnan Rare‐Precious Metals Compounds and Applications School of Chemistry and Environmental Science Chenzhou Hunan Province China
| | - Meng‐Han Ji
- Hunan Provincial Key Laboratory of Xiangnan Rare‐Precious Metals Compounds and Applications School of Chemistry and Environmental Science Chenzhou Hunan Province China
| | - Kai‐Wen Zhang
- Hunan Provincial Key Laboratory of Xiangnan Rare‐Precious Metals Compounds and Applications School of Chemistry and Environmental Science Chenzhou Hunan Province China
| | - Shou‐Ying Sun
- Hunan Provincial Key Laboratory of Xiangnan Rare‐Precious Metals Compounds and Applications School of Chemistry and Environmental Science Chenzhou Hunan Province China
| | - Jian‐Hong Jiang
- Hunan Provincial Key Laboratory of Xiangnan Rare‐Precious Metals Compounds and Applications School of Chemistry and Environmental Science Chenzhou Hunan Province China
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Moon SG, Lim CH, Kang HJ, Choi A, Kim S, Oh JH. Seven Days of Bismuth-Based Quadruple Therapy Is as Effective for the First-Line Treatment of Clarithromycin-Resistant Confirmed Helicobacter pylori Infection as 14 Days of Bismuth-Based Quadruple Therapy. J Clin Med 2022; 11:jcm11154440. [PMID: 35956057 PMCID: PMC9369116 DOI: 10.3390/jcm11154440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/25/2022] [Accepted: 07/28/2022] [Indexed: 02/01/2023] Open
Abstract
Background/Aims: Point mutations in the 23S ribosomal RNA gene have been associated with Helicobacter pylori (H. pylori) clarithromycin resistance and bismuth-based quadruple therapy (BQT) is one of the options for the treatment of clarithromycin-resistant H. pylori. Current H. pylori treatment guidelines recommend BQT for 10–14 days. This study aims to compare the eradication extents according to 7-day and 14-day BQT treatment for treatment-naïve clarithromycin-resistant confirmed H. pylori infection. Methods: We retrospectively investigated treatment-naïve H. pylori infection cases from March 2019 to December 2020, where patients were treated with BQT. Clarithromycin resistance was identified with a dual-priming oligonucleotide-based multiplex polymerase chain reaction method. We reviewed a total of 126 cases. Fifty-three subjects were treated with a 7-day BQT regimen (7-day group), and 73 subjects were treated with a 14-day BQT regimen (14-day group). We evaluated the total eradication extent of the BQT and compared the eradication extents of the two study groups. Results: Total eradication extent of H. pylori was 83.3% (105/126). The eradication extents of the two groups were as follows: 7-day group (81.1% (43/53)), 14-day group (84.9% (62/73), p = 0.572) by intention-to-treat analysis; 7-day group (95.6% (43/45)), 14-day group (92.5% (62/67), p = 0.518) by per-protocol analysis. The moderate or severe adverse event extents during the eradication were 30.2% (16/53) in the 7-day group and 19.2% (14/73) in the 14-day group (p = 0.152). Conclusions: The 7-day BQT regimen was as effective as the 14-day BQT regimen in the eradication of treatment-naïve clarithromycin-resistant H. pylori infection.
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Affiliation(s)
- Sang-Gon Moon
- Division of Gastroenterology, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, The Catholic University of Korea, Seoul 03312, Korea; (S.-G.M.); (H.-J.K.); (J.-H.O.)
| | - Chul-Hyun Lim
- Division of Gastroenterology, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, The Catholic University of Korea, Seoul 03312, Korea; (S.-G.M.); (H.-J.K.); (J.-H.O.)
- Correspondence: ; Tel.: +82-2-2030-4316; Fax: +82-2-2030-4641
| | - Hee-Jun Kang
- Division of Gastroenterology, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, The Catholic University of Korea, Seoul 03312, Korea; (S.-G.M.); (H.-J.K.); (J.-H.O.)
| | - Arum Choi
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (A.C.); (S.K.)
| | - Sukil Kim
- Department of Preventive Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (A.C.); (S.K.)
| | - Jung-Hwan Oh
- Division of Gastroenterology, Department of Internal Medicine, Eunpyeong St. Mary’s Hospital, The Catholic University of Korea, Seoul 03312, Korea; (S.-G.M.); (H.-J.K.); (J.-H.O.)
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First-line therapies for H. pylori infection in Italy: a pooled-data analysis. Acta Gastroenterol Belg 2022; 85:295-299. [DOI: 10.51821/85.2.9680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Background: Curing H. pylori infection remains challenging, and the use of most effective first-line therapy represents a therapeutic cornerstone. To monitor the efficacy of first-line therapies in Italy, we designed a systematic review with pooled- data analysis of data published in the last 15 years.
Methods: The search was focused on standard regimens and adult patients. Studies that included modified therapy regimens, pediatric patients, case series with less than 5 patients, and those in language other than English were excluded.
Results: A total of 40 studies, with 74 therapeutic arms and 13,539 patients were evaluated. Among the 14-day triple therapies, the combination with proton pump inhibitor (PPI), clarithromycin and amoxicillin achieved the highest (77.9%) success rate, whilst the lowest success rate (62.7%) was observed following the 14-day PPI, clarithromycin and tinidazole regimen. The overall efficacy of triple therapies significantly decreased from 75.7% to 72.1% in the last decade. Sequential (88.3% on 3431 patients), concomitant (88.8% on 376 patients), and the bismuth-based quadruple therapy with three-in-one capsule, containing bismuth subcitrate potassium (140 mg), metronidazole (125 mg), tetracycline (125 mg) (90.4% on 999 patients) achieved similarly high eradication rates, but data on concomitant are still limited. The bismuth-based was associated with the higher (38.7%) incidence of side-effects.
Conclusions: Data found that all triple therapies, irrespective of drug combination and therapy duration, should be abandoned in Italy due to their unacceptable low success rates. Monitoring the efficacy of standard first-line therapies in other countries could be clinically useful for both patients and clinicians.
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10
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Gisbert JP, Alcedo J, Amador J, Bujanda L, Calvet X, Castro-Fernández M, Fernández-Salazar L, Gené E, Lanas Á, Lucendo AJ, Molina-Infante J, Nyssen OP, Pérez-Aisa A, Puig I. V Spanish Consensus Conference on Helicobacter pylori infection treatment. GASTROENTEROLOGIA Y HEPATOLOGIA 2022; 45:392-417. [PMID: 34629204 DOI: 10.1016/j.gastrohep.2021.07.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/30/2021] [Accepted: 07/16/2021] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori infection is very common in the Spanish population and represents the main cause of chronic gastritis, peptic ulcer, and gastric cancer. The last iteration of Spanish consensus guidelines on H. pylori infection was conducted in 2016. Recent changes in therapeutic schemes along with increasing supporting evidence were key for developing the V Spanish Consensus Conference (May 2021). Fourteen experts performed a systematic review of the scientific evidence and developed a series of recommendations that were subjected to an anonymous Delphi process of iterative voting. Scientific evidence and the strength of the recommendation were classified using GRADE guidelines. An eradication therapy, when prescribed empirically, is considered acceptable when it reliably achieves, or preferably surpass, 90% cure rates. Currently, only quadruple therapies (with or without bismuth) and generally lasting 14 days, accomplish this goal in first- and second-line therapies. A non-bismuth quadruple concomitant regimen (proton pump inhibitor, clarithromycin, amoxicillin, and metronidazole) or a quadruple bismuth-based combination (proton pump inhibitor, bismuth, tetracycline, and metronidazole), are recommended as first-line regimens. Rescue therapies after eradication failure and management of H. pylori infection in peptic ulcer disease were also reviewed.
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Affiliation(s)
- Javier P Gisbert
- Servicio de Aparato Digestivo, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, España.
| | - Javier Alcedo
- Servicio de Aparato Digestivo, Hospital Universitario Miguel Servet, Instituto de Investigación Sanitaria de Aragón (IIS Aragón), Zaragoza, España
| | - Javier Amador
- Medicina de Familia, Centro de Salud Los Ángeles, Dirección Asistencial Centro, SERMAS, Madrid, España
| | - Luis Bujanda
- Servicio de Aparato Digestivo, Hospital Donostia/Instituto Biodonostia, Universidad del País Vasco UPV/EHU, CIBEREHD, San Sebastián, España
| | - Xavier Calvet
- Servicio de Aparato Digestivo, Hospital Parc Taulí, Universitat Autónoma de Barcelona, CIBEREHD, Sabadell, Barcelona, España
| | | | - Luis Fernández-Salazar
- Servicio de Aparato Digestivo, Hospital Clínico Universitario de Valladolid, Gerencia Regional de Salud (SACYL), Universidad de Valladolid, Valladolid, España
| | - Emili Gené
- Servicio de Urgencias, Hospital Parc Taulí Sabadell, CIBEREHD, Universitat Internacional de Catalunya, Barcelona, España
| | - Ángel Lanas
- Servicio de Aparato Digestivo, Hospital Clínico Universitario de Zaragoza, Instituto de Investigación Sanitaria de Aragón (IIS Aragón), CIBEREHD, Zaragoza
| | - Alfredo J Lucendo
- Servicio de Aparato Digestivo, Hospital General de Tomelloso, CIBEREHD, Ciudad Real, España
| | - Javier Molina-Infante
- Servicio de Aparato Digestivo, Hospital Universitario de Cáceres, CIBEREHD, Cáceres, España
| | - Olga P Nyssen
- Servicio de Aparato Digestivo, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-IP), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, España
| | - A Pérez-Aisa
- Servicio de Aparato Digestivo, Agencia Sanitaria Costa del Sol, Marbella, Málaga, España
| | - Ignasi Puig
- Servicio de Aparato Digestivo, Althaia Xarxa Assistencial Universitària de Manresa, Universitat de Vic-Universitat Central de Catalunya (UVicUCC), Manresa, Barcelona, España
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11
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Choe Y, Kim JS, Choi HH, Kim DB, Park JM, Oh JH, Kim TH, Cheung DY, Chung WC, Kim BW, Kim SS. The Influence of Past Metronidazole Exposure on the Outcome of Helicobacter pylori Eradication. Front Microbiol 2022; 13:857569. [PMID: 35401472 PMCID: PMC8992689 DOI: 10.3389/fmicb.2022.857569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/17/2022] [Indexed: 11/24/2022] Open
Abstract
Background Bismuth quadruple therapy (BQT) is recommended as empirical first-line therapy because it is not affected by antibiotic resistance. We examined whether past exposure to metronidazole affected BQT outcomes. Methods The records of seven hospitals were searched for patients who received BQT for Helicobacter pylori eradication between 2009 and 2020. The association between past metronidazole exposure and the eradication rate was evaluated. Results This study was a multicenter retrospective study. Around 37,602 people tested for H. pylori infection were identified, and 7,233 received BQT. About 2,802 (38.7%) underwent a 13C-urea breath test to confirm eradication. The BQT efficacy was 86.4% among patients without metronidazole exposure and 72.8% among patients with exposure (p < 0.001). The eradication rate of BQT 14 days in patients with past exposure was higher than that of BQT <14 days (85.5 vs. 66.0%, p = 0.009). Multivariate analysis revealed that past metronidazole exposure [odds ratio (OR) 2.6, 95% CI 1.8–3.7; p < 0.001] and BQT <14 days (OR 1.5, 95% CI 1.2–2.0; p = 0.002) were independent risk factors for eradication failure. Conclusion Past metronidazole exposure significantly lowered the BQT eradication rate. BQT 14 days should be recommended for patients with suspected metronidazole exposure.
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Affiliation(s)
- Younghee Choe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Joon Sung Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Hyun Ho Choi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Dae Bum Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Jae Myung Park
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Jung Hwan Oh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Eunpyeong St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Tae Ho Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Bucheon St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Dae Young Cheung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Woo Chul Chung
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Vincent's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Byung-Wook Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
| | - Sung Soo Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Uijeongbu St. Mary's Hospital, College of Medicine, Catholic University of Korea, Seoul, South Korea
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12
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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.
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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
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13
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Keikha M, Askari P, Ghazvini K, Karbalaei M. Levofloxacin-based therapy as an efficient alternative for eradicating Helicobacter pylori infection in Iran: a systematic review and meta-analysis. J Glob Antimicrob Resist 2021; 29:420-429. [PMID: 34788690 DOI: 10.1016/j.jgar.2021.10.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 10/22/2021] [Accepted: 10/24/2021] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVES Despite excessive resistance of Helicobacter pylori to clarithromycin among Iranian population, unfortunately, clarithromycin-based therapy is still prescribed in Iran. Recent studies have shown high rates of H. pylori eradication in patients treated with levofloxacin. The main purpose of this study was to compare the effect of levofloxacin with clarithromycin on the eradication of H. pylori infection in Iranian population. METHODS A comprehensive meta-analysis was done for the relevant cohort studies and clinical trials to compare the therapeutic effects of levofloxacin with clarithromycin in Iranian population. We pooled the data using odds ratio corresponding to 95% confidence intervals to find the clinical efficacy of levofloxacin versus clarithromycin to treat H. pylori infection. The heterogeneity and publication bias were also measured for the included studies. RESULTS A total of 13 studies were included in the quantitative synthesis. Eradication rate in patients receiving levofloxacin and clarithromycin were 75% and 66.3%, respectively (OR: 1.76; 95% CI: 1.40-2.20). In addition, in the subgroup analysis, it was confirmed that cure rate is relatively higher in levofloxacin-treated cases. However, there is significant heterogeneity as well as publication bias, thus, the results need to be interpreted with caution. CONCLUSIONS We found that the success of levofloxacin treatment was significantly higher than that of clarithromycin. Therefore, it is suggested that clarithromycin-based triple therapy be replaced by levofloxacin-based triple therapy in countries with high resistance rate to clarithromycin such as Iran. Nevertheless, findings of the present study need to be approved with larger investigation on Iranian population.
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Affiliation(s)
- Masoud Keikha
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parvin Askari
- Department of Microbiology, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Kiarash Ghazvini
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Microbiology and Virology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Karbalaei
- Department of Microbiology and Virology, Faculty of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran.
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14
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Marzano IM, Tomco D, Staples RJ, Lizarazo-Jaimes EH, Gomes DA, Bucciarelli-Rodriguez M, Guerra W, de Souza ÍP, Verani CN, Pereira Maia EC. Dual anticancer and antibacterial activities of bismuth compounds based on asymmetric [NN'O] ligands. J Inorg Biochem 2021; 222:111522. [PMID: 34218087 DOI: 10.1016/j.jinorgbio.2021.111522] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/16/2021] [Accepted: 06/16/2021] [Indexed: 01/25/2023]
Abstract
Two new bismuth(III) complexes, [BiL1Cl2] (1) and [BiL2Cl2] (2), in which L1 is (2-hydroxy-4-6-di-tert-butylbenzyl-2-pyridylmethyl)amine and L2 is 2,4-diiodo-6-((pyridine-2-ylmethylamino)methyl)phenol, were synthesized and characterized by elemental and conductivity analyses, atomic absorption spectrometry, infrared and 1H NMR spectroscopies. The molecular structure of 1 reveals that the NN'O ligand forms a 1:1 complex with bismuth through coordination via the nitrogen of the aliphatic amine, the nitrogen of the pyridine ring and the oxygen of the phenolate. The coordination sphere is completed with two chloride anions in a distorted square pyramidal geometry. Bismuth exhibits the same coordination mode in compound 2. The cytotoxic activity of 1 and 2 was investigated in a chronic myelogenous leukemia cell line. The complexes are approximately three times more potent than the corresponding free ligands, with the IC50 values 0.30 and 0.38 μM for complex 1 and 2, respectively. To address the cellular mechanisms underlying cell demise, apoptosis was quantified by flow cytometry analysis. From 0.1 μM, both complexes induce apoptosis and there is a remarkable concentration-dependent increase in the population of cells in apoptosis. The complexes were also evaluated against Gram-positive and Gram-negative bacteria. Both inhibited the bacterial growth in a concentration-dependent way, with remarkable activity in some of the tested strains, for example, complex 2 was more active than its free ligand against all bacterial strains and approximately fourteen times more potent against S. dysenteriae and S. typhimurium.
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Affiliation(s)
- Ivana M Marzano
- Department of Chemistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte 31270-901, MG, Brazil
| | - Dajena Tomco
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA
| | - Richard J Staples
- Department of Chemistry, Michigan State University, East Lansing, MI 48824, USA
| | - Edgar H Lizarazo-Jaimes
- Department of Chemistry, Universidade Federal de Viçosa, Rodovia MG-230, Km 7 - Zona Rural, Rio Paranaíba 38810-000, MG, Brazil
| | - Dawidson Assis Gomes
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, 31270-901, MG, Brazil
| | - Mônica Bucciarelli-Rodriguez
- Departament of General Biology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, 31270-901, MG, Brazil
| | - Wendell Guerra
- Chemistry Institute, Universidade Federal de Uberlândia, Campus Santa Mônica, 38400-902 Uberlândia, MG, Brazil
| | - Ívina P de Souza
- Department of Chemistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte 31270-901, MG, Brazil; Department of Chemistry, Centro Federal de Educação Tecnológica de Minas Gerais, 30421-169 Belo Horizonte, MG, Brazil
| | - Cláudio N Verani
- Department of Chemistry, Wayne State University, 5101 Cass Ave., Detroit, MI 48202, USA
| | - Elene C Pereira Maia
- Department of Chemistry, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte 31270-901, MG, Brazil.
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15
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Jung HK, Kang SJ, Lee YC, Yang HJ, Park SY, Shin CM, Kim SE, Lim HC, Kim JH, Nam SY, Shin WG, Park JM, Choi IJ, Kim JG, Choi M. Evidence-based Guidelines for the Treatment of Helicobacter pylori Infection in Korea: 2020 Revised Edition. THE KOREAN JOURNAL OF HELICOBACTER AND UPPER GASTROINTESTINAL RESEARCH 2020. [DOI: 10.7704/kjhugr.2020.0045] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori (H. pylori) infection is one of the most common infectious diseases worldwide. Although its incidence is gradually decreasing, about half of the world's population still get infected. H. pylori infection is responsible for substantial gastrointestinal morbidity worldwide. It is the most common cause of gastric and duodenal ulcers as well as gastric cancer. Since the revision of the H. pylori Clinical Practice Guidelines in 2013, the eradication rate of H. pylori has gradually decreased with the use of classical triple therapy, wherein amoxicillin, clarithromycin, and proton pump inhibitors are administered, for 7 days. According to a nationwide randomized controlled study conducted by the Korean College of Helicobacter and Upper Gastrointestinal Research released in 2018, the intention-to-treat eradication rate was only 63.9%, which was due to increased antimicrobial resistance induced by the use of antibiotics, especially clarithromycin. The update of clinical practice guideline for treatment of H. pylori was developed based on evidence-based medicine by conducting a meta-analysis. The draft recommendations were finalized after expert consensus on three recommendations regarding the indication for treatment and eight recommendations on the treatment itself. These guidelines are designed to provide patients, nurses, medical school students, policymakers, and clinicians with clinical evidence to guide primary care and treatment of H. pylori infection. These may differ from current medical insurance standards and will be revised further, if necessary, based on research-based evidence.
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16
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Chen Y, Liu Q, Hu F, Ma J. Identifying the best regimen for primary eradication of Helicobacter pylori: analysis of 240 cases. Microbiologyopen 2020; 9:e1120. [PMID: 33026166 PMCID: PMC7658452 DOI: 10.1002/mbo3.1120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/25/2020] [Accepted: 08/30/2020] [Indexed: 12/13/2022] Open
Abstract
The treatment regimen for the eradication of Helicobacter pylori may be best when therapy is susceptibility guided. However, it is unrealistic to use a strategy based on susceptibility testing to prioritize therapy for every patient in China. Empirical therapy of H. pylori is still widely used. The study was designed to discuss the best first‐line treatment regimen depending on empirical therapy. The focal point of the study was the optimal length of the therapy. Also, the selection of antibiotics was discussed in the article. This was a prospective, randomized, non‐inferiority trial. H. pylori‐infected patients who have no previous eradication therapy were randomly assigned to the following: 20 mg of rabeprazole, 1000 mg of amoxicillin, 500 mg of clarithromycin, and 220 mg of bismuth potassium citrate (BACPPI), administered twice a day for 10 or 14 days. The efficacy, side effects, and remission rate of clinical symptoms were determined. A total of 240 subjects were included in the study. The eradication rate with 14 and 10 days was essentially identical in both intention‐to‐treat (90.83% [95% CI, 86%–96%] vs. 87.50% [95% CI, 82%–93%]) and per‐protocol (94.78% [95% CI, 91%–99%] vs. 92.11% [95% CI, 87%–97%]) analyses. Loss of appetite and belching symptoms were significantly better in the BACPPI‐10 group than those in the control group after treatment. Side effects were generally mild and similar between groups. Our results showed that a 10‐day amoxicillin–clarithromycin‐containing bismuth quadruple therapy may be recommended for the primary empirical treatment of H. pylori infection in Beijing, China.
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Affiliation(s)
- Yao Chen
- Department of Traditional Chinese Medicine, Peking University International Hospital, Beijing, China
| | - Qingyi Liu
- Department of Domestic Department One, The Second Medical Center of Chinese, PLA General Hospital, Beijing, China
| | - Fulian Hu
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Jizheng Ma
- Department of Gastroenterology, Xiyuan Hospital, Beijing, China
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17
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Hajji R, Hajji S, Ben Ahmed A, Nasri M, Hlel F. Synthesis, physical characterization, thermal studies, biological activities and DFT computations on the molecular structure and vibrational spectra of [C7H12N2]2Bi2Br10·4H2O compound. J SOLID STATE CHEM 2020. [DOI: 10.1016/j.jssc.2020.121402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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18
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Özer Etik D, Sezer S, Suna N, Öztaş E, Kılıç ZMY. Can the treatment duration be shortened in bismuth-containing therapies for Helicobacter pylori eradication? TURKISH JOURNAL OF GASTROENTEROLOGY 2020; 30:667-672. [PMID: 31258136 DOI: 10.5152/tjg.2019.18793] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND/AIMS The duration of Helicobacter pylori (H. pylori) eradication therapy as a range (e.g., 10-14 days) is an ignored problem. There is no any particular treatment duration described in current guidelines, and the conditions for when to use 10-day therapy vs. 14-day therapy have not been elucidated. The aim of this study is to determine an effective and reliable H. pylori treatment duration in clinical practice. There were four different treatment modalities administered to groups, and success rates were compared. MATERIALS AND METHODS Patients were eligible to participate in the study if they had a biopsy-proven H. pylori infection. Each patient was randomly assigned to one of the four treatment groups according to a predetermined sequence: 14-day or 10-day bismuth-containing quadruple therapy (BQT) groups and 14-day or 10-day moxifloxacin-bismuth-combined treatment (MBCT) groups. RESULTS A total of 216 patients (54 per group) were enrolled. Two-hundred six patients (95.3%) completed therapy. There was no significant difference in the eradication rates between those patients who received 10- and 14-days BQT regimens (p=0.67). The 14-BQT protocol had the highest eradication rate, the MBCT regimes had the highest compliance, and the 10-MBCT protocol had the poorest results for H. pylori eradication. The posttreatment questionnaire on adverse effects identified nausea/vomiting as the most common side effect (35.7%). CONCLUSION Overall, the results of our study suggest that shortening the BQT protocol duration to 10 days does not weaken the H. pylori eradication rate. Moreover, quinolone-containing therapies with the lowest eradication rate among the groups should not be offered as a salvage treatment in case of the BQT failure.
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Affiliation(s)
- Diğdem Özer Etik
- Department of Gastroenterology, Başkent University School of Medicine, Ankara, Turkey
| | - Semih Sezer
- Clinic of Gastroenterology, Ankara Yenimahalle Hospital, Ankara, Turkey
| | - Nuretdin Suna
- Department of Gastroenterology, Başkent University School of Medicine, Ankara, Turkey
| | - Erkin Öztaş
- Department of Gastroenterology, Eskişehir Osmangazi University School of Medicine, Eskişehir, Turkey
| | - Zeki Mesut Yalın Kılıç
- Department of Gastroenterology, Health Sciences University Türkiye Yüksek İhtisas Hospital, İstanbul, Turkey
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19
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Dore MP, Bibbò S, Loria M, Salis R, Manca A, Pes GM, Graham DY. Twice-a-day PPI, tetracycline, metronidazole quadruple therapy with Pylera® or Lactobacillus reuteri for treatment naïve or for retreatment of Helicobacter pylori. Two randomized pilot studies. Helicobacter 2019; 24:e12659. [PMID: 31502382 DOI: 10.1111/hel.12659] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/14/2019] [Accepted: 08/13/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Bismuth is no longer available in Europe except as part of combination therapy. Lactobacillus reuteri has also been used as an adjuvant for Helicobacter pylori therapy. We aimed to investigate the efficacy of a b.i.d. quadruple therapy containing Pylera® or L reuteri for H pylori infection. MATERIALS AND METHODS We performed two open-label randomized pilot studies. Adult patients positive for H pylori were randomly assigned to b.i.d therapy with quadruple therapy containing bismuth (2 capsules of Pylera® plus 250 mg each of tetracycline and metronidazole for a total of 500 mg of each), or the same dose of antibiotics plus 2 × 108 CFU L reuteri DSM 17 938 plus 2 × 108 CFU L reuteri ATCC PTA 6475 (Gastrus®) once daily and pantoprazole 20 mg b.i.d. Regimens were given with meals for 10 days. Cure was defined by negative 13C-UBT or stool antigen test. RESULTS A total of 99 subjects (29% men) were enrolled; 92 completed the study. In the Pylera® group, H pylori infection was cured in 95.7%; 95% CI = 85%-99% (44/46) PP and 88%; 95% CI = 75%-95% (44/50) ITT vs. 84.8%; 95% CI = 71%-95% (39/46) PP and 79.6%; 95% CI = 65%-89% (39/49) ITT in the Gastrus® group, respectively. Cure rates in naїve patients were 100%; 95% CI = 85%-100% (25/25) PP with Pylera®, and 89.7%; 95% CI = 72%-97% (26/29) with Gastrus®. Compliance was excellent and side effects mild with both regimens. CONCLUSIONS B.i.d. bismuth quadruple therapy was highly effective for H pylori eradication in treatment of naïve patients in Sardinia. Replacement of bismuth with Gastrus® might be considered when bismuth is contraindicated or unavailable.
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Affiliation(s)
- Maria Pina Dore
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Italy.,Baylor College of Medicine, Houston, Texas
| | - Stefano Bibbò
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Italy
| | - Mariafrancesca Loria
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Italy
| | - Roberta Salis
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Italy
| | - Alessandra Manca
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Italy
| | - Giovanni Mario Pes
- Dipartimento di Scienze Mediche, Chirurgiche e Sperimentali, University of Sassari, Italy
| | - David Yates Graham
- Baylor College of Medicine, Houston, Texas.,Department of Medicine, Michael E. DeBakey VAMC, Houston, Texas
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20
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Nguyen CT, Davis KA, Nisly SA, Li J. Treatment ofHelicobacter pyloriin Special Patient Populations. Pharmacotherapy 2019; 39:1012-1022. [DOI: 10.1002/phar.2318] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Cynthia T. Nguyen
- Department of Pharmacy University of Chicago Medicine Chicago Illinois
| | - Kyle A. Davis
- Department of Pharmacy Wake Forest Baptist Medical Center Winston Salem North Carolina
| | - Sarah A. Nisly
- School of Pharmacy Wingate University Wingate North Carolina
| | - Julius Li
- Department of Pharmacy Southeast Louisiana Veteran Health Care System New Orleans Louisiana
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21
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Xie Y, Zhang Z, Hong J, Liu W, Lu H, Du Y, Wang W, Xu J, Wang X, Huo L, Zhang G, Lan C, Li X, Li Y, Wang H, Zhang G, Zhu Y, Shu X, Chen Y, Wang J, Lu N. Furazolidone-containing triple and quadruple eradication therapy for initial treatment for Helicobacter pylori infection: A multicenter randomized controlled trial in China. Helicobacter 2018; 23:e12496. [PMID: 30033619 DOI: 10.1111/hel.12496] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND The efficacy of Helicobacter pylori (H. pylori) eradication has steadily declined, primarily because of antibiotic resistance. This study aimed to evaluate the efficacy and safety of furazolidone eradication therapies as initial treatments for H. pylori infection. METHODS A national, multicenter, open-label, randomized controlled trial was performed at 16 sites across 13 provinces in China to evaluate the efficacy and safety of furazolidone-containing therapies for H. pylori infection. Treatment naïve patients were randomly assigned to: esomeprazole 20 mg, bismuth 220 mg, amoxicillin 1000 mg, and furazolidone 100 mg twice daily for 10 and 7 days (FAB 10 and FAB 7; the same therapy without bismuth (FA 10 and FA 7). The primary and secondary outcomes were the eradication rate and regimen safety, respectively. Treatment success was assessed by the 13 C urea breath test at least 4 weeks after treatment completion. RESULTS Overall, according to intention-to-treat (ITT) analysis, the eradication rates for FAB 10 and FAB 7 were 86.6% (95% confidence interval [CI], 79.9%-93.2%) and 83.6% (95% CI, 76.3%-90.9%) and for FA 10 and FA 7 were 82.4% (95% CI, 74.9%-89.8%) and 77.6% (95% CI, 69.4%-85.8%), respectively. According to per-protocol analysis, the overall eradication rates for FAB 10 and FAB 7 were 94.7% (95% CI, 90.3%-99.1%) and 90.8% (95% CI, 85.1%-96.5%) and for FA 10 and FA 7 were 90.6% (95% CI, 84.9%-96.3%) and 85.1% (95% CI, 78.2%-92.1%), respectively. The overall prevalence of side effects was 8.1%. CONCLUSIONS Furazolidone-containing therapies, particularly the tested 10-day quadruple therapy, exhibited satisfactory efficacy and safety. This 10-day quadruple therapy represents a promising initial treatment strategy for Chinese patients.
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Affiliation(s)
- Yong Xie
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Zhenyu Zhang
- Department of Gastroenterology, Nanjing First Hospital, Jiangsu, China
| | - Junbo Hong
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Wenzhong Liu
- Department of Gastroenterology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hong Lu
- Department of Gastroenterology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiqi Du
- Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Weihong Wang
- Department of Gastroenterology, Peking University First Hospital, Beijing, China
| | - Jianming Xu
- Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Xuehong Wang
- Department of Gastroenterology, Qinghai University Affiliated Hospital, Qinghai, China
| | - Lijuan Huo
- Department of Gastroenterology, First Hospital of Shanxi Medical University, Shanxi, China
| | - Guiying Zhang
- Department of Gastroenterology, Xiangya Hospital of Central South University, Hunan, China
| | - Chunhui Lan
- Department of Gastroenterology, Daping Hospital and the Research Institute of Surgery of Third Military Medical University, Chongqing, China
| | - Xiaoyan Li
- Department of Gastroenterology, First Affiliated Hospital of Kunming Medical College, Yunnan, China
| | - Yanqing Li
- Department of Gastroenterology, Qilu Hospital of Shandong University, Shandong, China
| | - Hong Wang
- Department of Gastroenterology, Guangzhou First People's Hospital, Guangdong, China
| | - Guoxin Zhang
- Department of Gastroenterology, Jiangsu Province Hospital, Jiangsu, China
| | - Yin Zhu
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Xu Shu
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi, China
| | - Ye Chen
- Department of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiangbin Wang
- Department of Gastroenterology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Nonghua Lu
- Department of Gastroenterology, First Affiliated Hospital of Nanchang University, Jiangxi, China
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22
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Chen L, He J, Wang L, Ge Q, Chu H, Chen Y, Chen X, Long Y, Deng Y, He H, Li A, Chen S. Efficacies of different proton pump inhibitor-based 14-day bismuth–furazolidone quadruple regimens for the initial eradication of Helicobacter pylori in the southeast coastal region of China: an open-label, randomized clinical trial. Clin Exp Med 2018; 18:569-576. [DOI: 10.1007/s10238-018-0510-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/24/2018] [Indexed: 12/12/2022]
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23
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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
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24
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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.
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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
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25
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Malfertheiner P, Megraud F, O'Morain CA, Gisbert JP, Kuipers EJ, Axon AT, Bazzoli F, Gasbarrini A, Atherton J, Graham DY, Hunt R, Moayyedi P, Rokkas T, Rugge M, Selgrad M, Suerbaum S, Sugano K, El-Omar EM. Management of Helicobacter pylori infection-the Maastricht V/Florence Consensus Report. Gut 2017; 66:6-30. [PMID: 27707777 DOI: 10.1136/gutjnl-2016-312288] [Citation(s) in RCA: 1803] [Impact Index Per Article: 257.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 08/09/2016] [Indexed: 02/06/2023]
Abstract
Important progress has been made in the management of Helicobacter pylori infection and in this fifth edition of the Maastricht Consensus Report, key aspects related to the clinical role of H. pylori were re-evaluated in 2015. In the Maastricht V/Florence Consensus Conference, 43 experts from 24 countries examined new data related to H. pylori in five subdivided workshops: (1) Indications/Associations, (2) Diagnosis, (3) Treatment, (4) Prevention/Public Health, (5) H. pylori and the Gastric Microbiota. The results of the individual workshops were presented to 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 the various clinical scenarios.
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Affiliation(s)
- P Malfertheiner
- Department of Gastroenterology, Hepatology and Infectious Diseases, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - F Megraud
- Laboratoire de Bactériologie, Inserm U853, Université de Bordeaux, Bordeaux, France
| | - C A O'Morain
- Faculty of Health Sciences, Trinity College, Dublin, Ireland
| | - J P Gisbert
- Department of 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
| | - E J Kuipers
- Erasmus University Medical Center, Rotterdam, The Netherlands
| | | | - F Bazzoli
- Internal Medicine and Gastroenterology, University of Bologna Italy, Bologna, Italy
| | - A Gasbarrini
- Gastroenterology, and Liver Unit, Internal Medicine, Roma, Italy
| | | | - D Y Graham
- Department of Medicine (111D), Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA
| | - R Hunt
- Department of Medicine, McMaster University, Hamilton, Canada.,Hillcroft, Beaconsfield, Buckinghamshire, UK
| | - P Moayyedi
- Department of Gastroenterology, McMaster University, Hamilton, Canada
| | - T Rokkas
- Department of Gastroenterology, Henry Dunant Hospital, Athens, Greece
| | - M Rugge
- Department of Diagnostic Sciences, University of Padova, Padova, Italy
| | | | - S Suerbaum
- Medizinische Hochschule Hannover, Institut für Medizinische Mikrobiologie, Hannover, Germany
| | - K Sugano
- Department of Medicine, Jichi Medical School, Tochigi, Japan
| | - E M El-Omar
- St George and Sutherland Clinical School, University of New South Wales, Sydney, Australia
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26
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Yamaoka Y, Graham DY. Empiric H. pylori therapy-10-day concomitant, bismuth quadruple or 14-day triple therapy: none is best. Transl Cancer Res 2016; 5:S1476-S1478. [PMID: 28819587 DOI: 10.21037/tcr.2016.12.39] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yoshio Yamaoka
- Department of Medicine, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA.,Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Yufu, Japan
| | - David Y Graham
- Department of Medicine, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, Texas, USA
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27
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Gisbert JP, Molina-Infante J, Amador J, Bermejo F, Bujanda L, Calvet X, Castro-Fernández M, Cuadrado-Lavín A, Elizalde JI, Gene E, Gomollón F, Lanas Á, Martín de Argila C, Mearin F, Montoro M, Pérez-Aisa Á, Pérez-Trallero E, McNicholl AG. IV Spanish Consensus Conference on Helicobacter pylori infection treatment. GASTROENTEROLOGIA Y HEPATOLOGIA 2016; 39:697-721. [PMID: 27342080 DOI: 10.1016/j.gastrohep.2016.05.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 05/18/2016] [Accepted: 05/19/2016] [Indexed: 02/06/2023]
Abstract
Helicobacter pylori approximately infect 50% of Spanish population and causes chronic gastritis, peptic ulcer and gastric cancer. Until now, three consensus meetings on H.pylori infection had been performed in Spain (the last in 2012). The changes in the treatment schemes, and the increasing available evidence, have justified organizing the IVSpanish Consensus Conference (March 2016), focused on the treatment of this infection. Nineteen experts participated, who performed a systematic review of the scientific evidence and developed a series of recommendation that were subjected to an anonymous Delphi process of iterative voting. Scientific evidence and the strength of the recommendation were classified using GRADE guidelines. As starting point, this consensus increased the minimum acceptable efficacy of recommended treatments that should reach, or preferably surpass, the 90% cure rate when prescribed empirically. Therefore, only quadruple therapies (with or without bismuth), and generally lasting 14 days, are recommended both for first and second line treatments. Non-bismuth quadruple concomitant regimen, including a proton pump inhibitor, clarithromycin, amoxicillin and metronidazole, is recommended as first line. In the present consensus, other first line alternatives and rescue treatments are also reviewed and recommended.
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Affiliation(s)
- Javier P Gisbert
- Servicio de Aparato Digestivo, 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, España.
| | | | - Javier Amador
- Medicina de Familia, Centro de Salud Los Ángeles, Madrid, España
| | - Fernando Bermejo
- Servicio de Aparato Digestivo, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, España
| | - Luis Bujanda
- Servicio de Digestivo, Hospital Donostia/Instituto Biodonostia, Universidad del País Vasco UPV/EHU, CIBEREHD, San Sebastián, España
| | - Xavier Calvet
- Servicio de Aparato Digestivo, Hospital Parc Taulí, Universitat Autónoma de Barcelona, CIBEREHD, Sabadell, Barcelona, España
| | | | | | - J Ignasi Elizalde
- Servicio de Aparato Digestivo, Hospital Clínic, CIBEREHD, Barcelona, España
| | - Emili Gene
- Servicio de Urgencias, Hospital Parc Taulí Sabadell, CIBEREHD, Universitat Internacional de Catalunya, Sabadell, Barcelona, España
| | - Fernando Gomollón
- Servicio de Aparato Digestivo, Hospital Clínico Universitario de Zaragoza, IIS Aragón, CIBEREHD, Zaragoza, España
| | - Ángel Lanas
- Servicio de Aparato Digestivo, Hospital Clínico Universitario de Zaragoza, IIS Aragón, CIBEREHD, Zaragoza, España
| | - Carlos Martín de Argila
- Servicio de Aparato Digestivo, Hospital Universitario Ramón y Cajal, Universidad de Alcalá, Madrid, España
| | - Fermín Mearin
- Servicio de Aparato Digestivo, Centro Médico Teknon, Barcelona, España
| | - Miguel Montoro
- Servicio de Aparato Digestivo, Hospital San Jorge, Huesca, España
| | - Ángeles Pérez-Aisa
- Servicio de Aparato Digestivo, Agencia Sanitaria Costa del Sol, Marbella, Málaga, España
| | - Emilio Pérez-Trallero
- Servicio de Microbiología, Hospital Donostia/Instituto Biodonostia, Universidad del País Vasco UPV/EHU, CIBEREHD, San Sebastián, España
| | - Adrián G McNicholl
- Servicio de Aparato Digestivo, 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, España
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Dore MP, Soro S, Rocchi C, Loria MF, Bibbò S, Pes GM. Inclusion of Lactobacillus Reuteri in the Treatment of Helicobacter pylori in Sardinian Patients: A Case Report Series. Medicine (Baltimore) 2016; 95:e3411. [PMID: 27082621 PMCID: PMC4839865 DOI: 10.1097/md.0000000000003411] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Clinical studies have shown that bismuth-containing quadruple therapy given twice a day for 10 to 14 days is effective and safe in the treatment of Helicobacter pylori infection in Sardinia. However, bismuth is no longer available in Italy. To report the effectiveness and tolerability of pantoprazole 20 mg, tetracycline 500 mg, and metronidazole 500 mg given b.i.d. (with the midday and evening meals) for 10 days supplemented with Lactobacillus reuteri (DSM 17938) 10(8) cfu/tablet once a day for 20 days in patients treated in a routine daily practice setting. H pylori infection was defined as a positive gastric histopathology and/or 13C-Urea Breath Test (UBT) and/or stool antigen testing. Successful eradication was documented by 13C-UBT, and/or stool antigen assay at least 4 weeks post-therapy. Compliance and side effects were recorded after completing treatment. A total of 45 patients (10 men, 35 women; mean age 52.6 years) have completed the treatment regimen with the success rate of 93% (95% confidence interval = 85-99%). Compliance was excellent. Side effects were absent or generally mild.Proton pump inhibitor-tetracycline-metronidazole-L reuteri therapy provided high eradication rates with few side effects and therefore can safely replace bismuth in H pylori treatment. Further studies are needed that include susceptibility testing.
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Affiliation(s)
- Maria P Dore
- From the Department of Clinical and Experimental Medicine (MPD, SS, CR, MFL, SB, GMP), University of Sassari, Sassari Italy; and Baylor College of Medicine (MPD), Houston, TX
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29
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Zhang W, Chen Q, Liang X, Liu W, Xiao S, Graham DY, Lu H. Bismuth, lansoprazole, amoxicillin and metronidazole or clarithromycin as first-line Helicobacter pylori therapy. Gut 2015; 64:1715-20. [PMID: 26338726 DOI: 10.1136/gutjnl-2015-309900] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 08/11/2015] [Indexed: 01/06/2023]
Abstract
OBJECTIVE To evaluate the efficacy and tolerability of replacing tetracycline with amoxicillin in bismuth quadruple therapy. DESIGN Subjects who were infected with Helicobacter pylori and naïve to treatment were randomly (1:1) assigned to receive a 14-day modified bismuth quadruple therapy: lansoprazole 30 mg, amoxicillin 1 g, bismuth potassium citrate 220 mg (elemental bismuth), twice a day with metronidazole 400 mg four times a day (metronidazole group) or clarithromycin 500 mg twice a day (clarithromycin group). Six weeks after treatment, H. pylori eradication was assessed by 13C-urea breath test. Antimicrobial susceptibility was assessed by the twofold agar dilution method. This was a non-inferiority trial. RESULTS Two hundred and fifteen subjects were randomised. Metronidazole and clarithromycin containing regimens achieved high cure rates: 94 of 97 (96.9%, 95% CI 93.5% to 100%) and 93 of 98 (94.9%, 95% CI 90.5% to 99.3%) by per-protocol and 88.9% (95% CI 83.0% to 94.8%) and 88.8% (95% CI 82.8% to 94.8%) by intention-to-treat, respectively. Amoxicillin, metronidazole and clarithromycin resistance rates were 1.5%, 45.5% and 26.5%, respectively. Only clarithromycin resistance reduced treatment success (e.g., susceptible 98.6%, resistant 76.9%, p=0.001). Adverse events were more common in the metronidazole group. CONCLUSIONS These results suggest that amoxicillin can substitute for tetracycline in modified 14 day bismuth quadruple therapy as first-line treatment and still overcome metronidazole resistance in areas with high prevalence of metronidazole and clarithromycin resistance. Using clarithromycin instead of metronidazole was only effective in the presence of susceptible strains. TRIAL REGISTRATION NUMBER NCT02175901.
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Affiliation(s)
- Wei Zhang
- GI Division, Renji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai Institution of Digestive Disease, Shanghai, China Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Qi Chen
- GI Division, Renji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai Institution of Digestive Disease, Shanghai, China Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Xiao Liang
- GI Division, Renji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai Institution of Digestive Disease, Shanghai, China Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Wenzhong Liu
- GI Division, Renji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai Institution of Digestive Disease, Shanghai, China Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - Shudong Xiao
- GI Division, Renji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai Institution of Digestive Disease, Shanghai, China Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
| | - David Y Graham
- Michael E. DeBakey VA Medical Center, and Baylor College of Medicine Houston, Houston, Texas, USA
| | - Hong Lu
- GI Division, Renji Hospital, School of Medicine, Shanghai Jiao-Tong University, Shanghai Institution of Digestive Disease, Shanghai, China Key Laboratory of Gastroenterology & Hepatology, Ministry of Health, Shanghai, China
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Graham DY, Lee SY. How to Effectively Use Bismuth Quadruple Therapy: The Good, the Bad, and the Ugly. Gastroenterol Clin North Am 2015; 44:537-63. [PMID: 26314667 PMCID: PMC4555994 DOI: 10.1016/j.gtc.2015.05.003] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Bismuth triple therapy was the first effective Helicobacter pylori eradication therapy. The addition of a proton pump inhibitor helped overcome metronidazole resistance. Its primary indication is penicillin allergy or when clarithromycin and metronidazole resistance are both common. Resistance to the primary first-line therapy have centered on complexity and difficulties with compliance. Understanding regional differences in effectiveness remains unexplained because of the lack of studies including susceptibility testing and adherence data. We discuss regimen variations including substitutions of doxycycline, amoxicillin, and twice a day therapy and provide suggestions regarding what is needed to rationally and effectively use bismuth quadruple therapy.
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Affiliation(s)
- David Y. Graham
- Department of Medicine, Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, TX, USA
| | - Sun-Young Lee
- Department of Internal Medicine, Konkuk University School of Medicine, 120-1 Neungdong-ro, Seoul 143-729, Korea
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Molina-Infante J, Shiotani A. Practical Aspects in Choosing a Helicobacter pylori Therapy. Gastroenterol Clin North Am 2015; 44:519-35. [PMID: 26314666 DOI: 10.1016/j.gtc.2015.05.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Cure rates greater than 90%-95% should be expected with an antimicrobial therapy for Helicobacter pylori infection. Standard triple therapy does not guarantee these efficacy rates in most settings worldwide anymore. The choice of eradication regimen should be dictated by factors that can predict the outcome: (1) H. pylori susceptibility; (2) patients' history of prior antibiotic therapy; and (3) local data, either resistance patterns or clinical success. Currently, the preferred first-line choices are 14-day bismuth quadruple and 14-day non-bismuth quadruple concomitant therapy. Bismuth quadruple (if not used previously), fluoroquinolone-, furazolidone- and rifabutin-containing regimens might be effective rescue treatments.
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Affiliation(s)
- Javier Molina-Infante
- Department of Gastroenterology, Hospital San Pedro de Alcantara, C/Pablo Naranjo s/n, Caceres 10003, Spain.
| | - Akiko Shiotani
- Department of Internal Medicine, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama Prefecture 701-0114, Japan
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Ruggeri M, Manca A, Coretti S, Codella P, Iacopino V, Romano F, Mascia D, Orlando V, Cicchetti A. Investigating the Generalizability of Economic Evaluations Conducted in Italy: A Critical Review. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2015; 18:709-720. [PMID: 26297100 DOI: 10.1016/j.jval.2015.03.1795] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 02/27/2015] [Accepted: 03/29/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVES To assess the methodological quality of Italian health economic evaluations and their generalizability or transferability to different settings. METHODS A literature search was performed on the PubMed search engine to identify trial-based, nonexperimental prospective studies or model-based full economic evaluations carried out in Italy from 1995 to 2013. The studies were randomly assigned to four reviewers who applied a detailed checklist to assess the generalizability and quality of reporting. The review process followed a three-step blinded procedure. The reviewers who carried out the data extraction were blind as to the name of the author(s) of each study. Second, after the first review, articles were reassigned through a second blind randomization to a second reviewer. Finally, any disagreement between the first two reviewers was solved by a senior researcher. RESULTS One hundred fifty-one economic evaluations eventually met the inclusion criteria. Over time, we observed an increasing transparency in methods and a greater generalizability of results, along with a wider and more representative sample in trials and a larger adoption of transition-Markov models. However, often context-specific economic evaluations are carried out and not enough effort is made to ensure the transferability of their results to other contexts. In recent studies, cost-effectiveness analyses and the use of incremental cost-effectiveness ratio were preferred. CONCLUSIONS Despite a quite positive temporal trend, generalizability of results still appears as an unsolved question, even if some indication of improvement within Italian studies has been observed.
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Affiliation(s)
- Matteo Ruggeri
- Director of Post-Graduate School of Health Economics and Management (ALTEMS), Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Manca
- Centre for Health Economics, University of York, York, UK
| | - Silvia Coretti
- Director of Post-Graduate School of Health Economics and Management (ALTEMS), Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Paola Codella
- Director of Post-Graduate School of Health Economics and Management (ALTEMS), Università Cattolica del Sacro Cuore, Rome, Italy
| | - Valentina Iacopino
- Director of Post-Graduate School of Health Economics and Management (ALTEMS), Università Cattolica del Sacro Cuore, Rome, Italy
| | - Federica Romano
- Director of Post-Graduate School of Health Economics and Management (ALTEMS), Università Cattolica del Sacro Cuore, Rome, Italy
| | - Daniele Mascia
- Director of Post-Graduate School of Health Economics and Management (ALTEMS), Università Cattolica del Sacro Cuore, Rome, Italy
| | - Valentina Orlando
- Inter-departmental Research Centre of PharmacoEconomics and Drug utilization (CIRFF), Center of Pharmacoeconomics, Federico II University of Naples, Naples, Italy
| | - Americo Cicchetti
- Director of Post-Graduate School of Health Economics and Management (ALTEMS), Università Cattolica del Sacro Cuore, Rome, Italy
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Gisbert JP, Romano M, Gravina AG, Solís-Muñoz P, Bermejo F, Molina-Infante J, Castro-Fernández M, Ortuño J, Lucendo AJ, Herranz M, Modolell I, Del Castillo F, Gómez J, Barrio J, Velayos B, Gómez B, Domínguez JL, Miranda A, Martorano M, Algaba A, Pabón M, Angueira T, Fernández-Salazar L, Federico A, Marín AC, McNicholl AG. Helicobacter pylori second-line rescue therapy with levofloxacin- and bismuth-containing quadruple therapy, after failure of standard triple or non-bismuth quadruple treatments. Aliment Pharmacol Ther 2015; 41:768-75. [PMID: 25703120 DOI: 10.1111/apt.13128] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 11/22/2014] [Accepted: 01/29/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND The most commonly used second-line Helicobacter pylori eradication regimens are bismuth-containing quadruple therapy and levofloxacin-containing triple therapy, both offering suboptimal results. Combining bismuth and levofloxacin may enhance the efficacy of rescue eradication regimens. AIMS To evaluate the efficacy and tolerability of a second-line quadruple regimen containing levofloxacin and bismuth in patients whose previous H. pylori eradication treatment failed. METHODS This was a prospective multicenter study including patients in whom a standard triple therapy (PPI-clarithromycin-amoxicillin) or a non-bismuth quadruple therapy (PPI-clarithromycin-amoxicillin-metronidazole, either sequential or concomitant) had failed. Esomeprazole (40 mg b.d.), amoxicillin (1 g b.d.), levofloxacin (500 mg o.d.) and bismuth (240 mg b.d.) was prescribed for 14 days. Eradication was confirmed by (13) C-urea breath test. Compliance was determined through questioning and recovery of empty medication envelopes. Incidence of adverse effects was evaluated by questionnaires. RESULTS 200 patients were included consecutively (mean age 47 years, 67% women, 13% ulcer). Previous failed therapy included: standard clarithromycin triple therapy (131 patients), sequential (32) and concomitant (37). A total of 96% took all medications correctly. Per-protocol and intention-to-treat eradication rates were 91.1% (95%CI = 87-95%) and 90% (95%CI = 86-94%). Cure rates were similar regardless of previous (failed) treatment or country of origin. Adverse effects were reported in 46% of patients, most commonly nausea (17%) and diarrhoea (16%); 3% were intense but none was serious. CONCLUSIONS Fourteen-day bismuth- and levofloxacin-containing quadruple therapy is an effective (≥90% cure rate), simple and safe second-line strategy in patients whose previous standard triple or non-bismuth quadruple (sequential or concomitant) therapies have failed.
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Affiliation(s)
- J P Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
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Özbalcı GS, Yürüker SS, Tarım İA, Çınar H, Polat AK, Özbalcı AB, Karabulut K, Erzurumlu K. First-line therapy in Helicobacter pylori eradication therapy: experience of a surgical clinic. Turk J Surg 2014; 30:133-7. [PMID: 25931914 PMCID: PMC4379858 DOI: 10.5152/ucd.2014.2678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 03/29/2014] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Helicobacter pylori (HP) is the world's most common infectious agent. Despite conventional therapy consisting of proton pump inhibitor (PPI), amoxicillin (AMO) and clarithromycin (CLA), approximately half of the patients remain infected. We compared the PPI-based triple therapy with quadruple treatment (BPMT) including bismuth citrate (BS), PPI, metronidazole (MET) and tetracycline (TET). MATERIAL AND METHODS Forty-three patients who used triple therapy (LAC) consisting of lansoprazole (L), AMO and CLA and 42 patients who used quadruple therapy (BPMT) for 14 days between May 2008 and November 2013 were included in the study. The LAC group included patients who received 30 mg L 2×1, 1000 mg AMO 2×1, and 500 mg CLA 2×1 for 14 days, whereas the BPMT group was designed from patients who received 600 mg BS 2×1, 40 mg omeprazole (O) 2×1 or 30 mg L 2×1, 500 mg MET 3×1 and 500 mg TET 4×1. RESULTS Demographic characteristics and endoscopic findings were similar in both groups. The eradication rate was 53.4% in the LAC group and 78.5% in the BPMT group (p<0.05). Compliance problems and side effects were significantly higher in the BPMT group as compared to the LAC group (p<0.05). CONCLUSION Due to high antibiotic resistance in Turkey, the efficacy of LAC treatment has reduced. The BPMT protocol should be kept in mind in the first line of treatment, since it provides a higher eradication rate.
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Affiliation(s)
- Gökhan Selçuk Özbalcı
- Department of General Surgery, Ondokuz Mayıs University Faculty of Medicine, Samsun, Turkey
| | - Saim Savaş Yürüker
- Department of General Surgery, Ondokuz Mayıs University Faculty of Medicine, Samsun, Turkey
| | - İsmail Alper Tarım
- Department of General Surgery, Ondokuz Mayıs University Faculty of Medicine, Samsun, Turkey
| | - Hamza Çınar
- Clinic of General Surgery, Kurtalan State Hospital, Siirt, Turkey
| | - Ayfer Kamalı Polat
- Department of General Surgery, Ondokuz Mayıs University Faculty of Medicine, Samsun, Turkey
| | - Aysu Başak Özbalcı
- Clinic of Radiology, Mehmet Aydın Training and Research Hospital, Samsun, Turkey
| | - Kağan Karabulut
- Department of General Surgery, Ondokuz Mayıs University Faculty of Medicine, Samsun, Turkey
| | - Kenan Erzurumlu
- Department of General Surgery, Ondokuz Mayıs University Faculty of Medicine, Samsun, Turkey
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Delchier JC, Malfertheiner P, Thieroff-Ekerdt R. Use of a combination formulation of bismuth, metronidazole and tetracycline with omeprazole as a rescue therapy for eradication of Helicobacter pylori. Aliment Pharmacol Ther 2014; 40:171-7. [PMID: 24863854 DOI: 10.1111/apt.12808] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Revised: 03/17/2014] [Accepted: 05/06/2014] [Indexed: 12/19/2022]
Abstract
BACKGROUND Helicobacter pylori infection occurs in children and adults worldwide. Standard triple therapy of omeprazole, amoxicillin and clarithromycin (OAC) may not be optimal. AIM To evaluate quadruple therapy with bismuth subcitrate potassium, metronidazole and tetracycline hydrochloride, given with omeprazole in H. pylori infected subjects who failed previous OAC eradication therapy. METHODS This was a multicenter, open-label, single-arm, multinational study. Helicobacter pylori-positive subjects who had failed ≥1 previous course of OAC therapy with or without up to three supplemental treatments in the previous year. Subjects were treated for 10 days with a combination formulation containing bismuth subcitrate potassium 140 mg, tetracycline hydrochloride 125 mg, and metronidazole 125 mg, three capsules four times daily (q.d.s.), and omeprazole 20 mg twice daily (b.d.). The primary endpoint was H. pylori eradication rate defined as one negative (13) C-urea breath test ≥28 days post-treatment. RESULTS Helicobacter pylori eradication rates ranged from 93.2% to 93.8% in the intent-to-treat population (n = 49), and from 94.7% to 95.0% in the PP population (n = 40). No clinically meaningful differences were observed when analysed by country. Metronidazole resistance was observed in 16/49 (32.7%) subjects and clarithromycin resistance in 31/49 (63.3%) subjects. Thirty-three subjects (67.3%) reported 87 adverse events, and only one (2%) discontinued the study for an adverse event. CONCLUSIONS A quadruple regimen of bismuth, metronidazole and tetracycline plus omeprazole produces a high eradication rate in subjects previously failing H. pylori eradication regimens. This bismuth-based regimen offers an effective option as rescue therapy.
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Affiliation(s)
- J C Delchier
- Gastroenterology Unit, Albert Chenevier-Henri Mondor Hospital AP-HP, UPEC Université Paris 12, Paris, France
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Alahdab YO, Kalayci C. Helicobacter pylori: Management in 2013. World J Gastroenterol 2014; 20:5302-5307. [PMID: 24833860 PMCID: PMC4017045 DOI: 10.3748/wjg.v20.i18.5302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 11/15/2013] [Accepted: 01/06/2014] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) is a prevalent, worldwide, chronic infection. Choice of treatment can be modified according to antibiotic-resistance rates of H. pylori. The ideal therapeutic regimen for H. pylori infection should achieve an eradication rate of ≥ 80%. In some countries, triple therapy with a proton-pump inhibitor (PPI), clarithromycin, and amoxicillin or metronidazole is still the best option. Bismuth-containing quadruple therapy consisting of bismuth salts, tetracycline, metronidazole and PPI, may be the preferred option in countries with clarithromycin resistance > 20%. Sequential therapy including a PPI and amoxicillin given for the first 5 d, followed by triple therapy including a PPI, clarithromycin, and nitroimidazole antimicrobial (all twice daily) for the remaining 5 d, can be another option for the first-line treatment of H. pylori. Recent data suggest that treatment with PPI, levofloxacin, and amoxicillin for 10 d is a good choice for second-line therapy. Concomitant therapy consisting of PPI, amoxicillin, clarithromycin and metronidazole is another option for second-line treatment. If second-line treatment also fails, it is recommended to culture H. pylori from biopsy specimens and perform antimicrobial susceptibility testing. Rescue treatment should be based on antimicrobial susceptibility.
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Graham DY, Lee YC, Wu MS. Rational Helicobacter pylori therapy: evidence-based medicine rather than medicine-based evidence. Clin Gastroenterol Hepatol 2014; 12:177-86.e3; Discussion e12-3. [PMID: 23751282 PMCID: PMC3830667 DOI: 10.1016/j.cgh.2013.05.028] [Citation(s) in RCA: 239] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Revised: 05/07/2013] [Accepted: 05/15/2013] [Indexed: 02/07/2023]
Abstract
Data are available such that choice of Helicobacter pylori therapy for an individual patient can be reliably predicted. Here, treatment success is defined as a cure rate of 90% or greater. Treatment outcome in a population or a patient can be calculated based on the effectiveness of a regimen for infections with susceptible and with resistant strains coupled with the knowledge of the prevalence of resistance (ie, based on formal measurement, clinical experience, or both). We provide the formula for predicting outcome and we illustrate the calculations. Because clarithromycin-containing triple therapy and 10-day sequential therapy are now only effective in special populations, they are considered obsolete; neither should continue to be used as empiric therapies (ie, 7- and 14-day triple therapies fail when clarithromycin resistance exceeds 5% and 15%, respectively, and 10-day sequential therapy fails when metronidazole resistance exceeds 20%). Therapy should be individualized based on prior history and whether the patient is in a high-risk group for resistance. The preferred choices for Western countries are 14-day concomitant therapy, 14-day bismuth quadruple therapy, and 14-day hybrid sequential-concomitant therapy. We also provide details regarding the successful use of fluoroquinolone-, rifabutin-, and furazolidone-containing therapies. Finally, we provide recommendations for the efficient development (ie, identification and optimization) of new regimens, as well as how to prevent or minimize failures. The trial-and-error approach for identifying and testing regimens frequently resulted in poor treatment success. The described approach allows outcome to be predicted and should simplify treatment and drug development.
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Affiliation(s)
- David Y Graham
- Department of Medicine, Michael E. DeBakey VA Medical Center, and Baylor College of Medicine, Houston, Texas.
| | - Yi-Chia Lee
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ming-Shiang Wu
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
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Wu JY, Liou JM, Graham DY. Evidence-based recommendations for successful Helicobacter pylori treatment. Expert Rev Gastroenterol Hepatol 2014; 8:21-8. [PMID: 24410470 DOI: 10.1586/17474124.2014.859522] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An effective Helicobacter pylori therapy reliably provides high cure rates in infections with susceptible strains. It is possible to predict the efficacy of any regimen if one knows the prevalence of antibiotic resistance for a regimen or for a specific patient. We show how to predict the outcome for current regimens and discuss the factors that undermine different regimens (i.e., their Achilles heel). In general, in Western countries, clarithromycin-containing triple and sequential therapy should be considered obsolete as empiric therapies. Preferred regimens are 14-day concomitant or bismuth-containing quadruple therapy. We provide details of how to identify a regimen for a patient or region that will reliably cure 90% or more as well as those that will reliably fail.
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Affiliation(s)
- Jeng-Yih Wu
- Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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Yuan Y, Ford AC, Khan KJ, Gisbert JP, Forman D, Leontiadis GI, Tse F, Calvet X, Fallone C, Fischbach L, Oderda G, Bazzoli F, Moayyedi P. Optimum duration of regimens for Helicobacter pylori eradication. Cochrane Database Syst Rev 2013:CD008337. [PMID: 24338763 DOI: 10.1002/14651858.cd008337.pub2] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND The optimal duration for Helicobacter pylori (H. pylori) eradication therapy is controversial, with recommendations ranging from 7 to 14 days. Several systematic reviews have attempted to address this issue but have given conflicting results and limited their analysis to proton pump inhibitor (PPI), two antibiotics (PPI triple) therapy. We performed a systematic review and meta-analysis to investigate the optimal duration of multiple H. pylori eradication regimens. OBJECTIVES The primary objective was to assess the relative effectiveness of different durations (7, 10 or 14 days) of a variety of regimens for eradicating H. pylori. The primary outcome was H. pylori persistence. The secondary outcome was adverse events. SEARCH METHODS The Cochrane Library, MEDLINE, EMBASE, and CINAHL were searched up to December 2011 to identify eligible randomised controlled trials (RCTs). We also searched the proceedings of six conferences from 1995 to 2011, dissertations and theses, and grey literature. There were no language restrictions applied to any search. SELECTION CRITERIA Only parallel group RCTs assessing the efficacy of one to two weeks duration of first line H. pylori eradication regimens in adults were eligible. Within each regimen, the same combinations of drugs at the same dose were compared over different durations. Studies with at least two arms comparing 7, 10, or 14 days were eligible. Enrolled participants needed to be diagnosed with at least one positive test for H. pylori on the basis of a rapid urease test (RUT), histology, culture, urea breath test (UBT), or a stool antigen test (HpSA) before treatment. Eligible trials needed to confirm eradication of H. pylori as their primary outcome at least 28 days after completion of eradication treatment. Trials using only serology or a polymerase chain reaction (PCR) to determine H. pylori infection or eradication were excluded. DATA COLLECTION AND ANALYSIS Study eligibility and data extraction were performed by two independent review authors. Data analyses were performed within each type of intervention, for both primary and secondary outcomes. The relative risk (RR) and number needed to treat (NNT)/number needed to harm (NNTH) according to duration of therapy were calculated using the outcomes of H. pylori persistence and adverse events. A random-effects model was used. Subgroup analyses and sensitivity analyses were planned a priori. MAIN RESULTS In total, 75 studies met the inclusion criteria. Eight types of regimens were reported with at least two comparative eligible durations. They included: PPI + two antibiotics triple therapy (n = 59), PPI bismuth-based quadruple therapy (n = 6), PPI + three antibiotics quadruple therapy (n = 1), PPI dual therapy (n = 2), histamine H2-receptor antagonist (H₂RA) bismuth quadruple therapy (n = 3), H₂RA bismuth-based triple therapy (n = 2), H₂RA + two antibiotics triple therapy (n = 3), and bismuth + two antibiotics triple therapy (n = 2). Some studies provided data for more than one regimen or more than two durations.For the PPI triple therapy, 59 studies with five regimens were reported: PPI + clarithromycin + amoxicillin (PCA); PPI + clarithromycin + a nitroimidazole (PCN); PPI + amoxicillin + nitroimidazole (PAN); PPI + amoxicillin + a quinolone (PAQ); and PPI + amoxicillin + a nitrofuran (PANi). Regardless of type and dose of antibiotics, increased duration of PPI triple therapy from 7 to 14 days significantly increased the H. pylori eradication rate (45 studies, 72.9% versus 81.9%), the RR for H. pylori persistence was 0.66 (95% CI 0.60 to 0.74), NNT was 11 (95% CI 9 to 14). Significant effects were seen in the subgroup of PCA (34 studies, RR 0.65, 95% CI 0.57 to 0.75; NNT 12, 95% CI 9 to 16); PAN (10 studies, RR 0.67, 95% CI 0.52 to 0.86; NNT = 11, 95% CI 8 to 25); and in PAQ (2 studies, RR 0.37, 95% CI 0.16 to 0.83; NNT 3, 95% CI 2 to 10); but not in PCN triple therapy (4 studies, RR 0.87, 95% CI 0.71 to 1.07). Significantly increased eradication rates were also seen for PPI triple therapy with 10 versus 7 days (24 studies, 79.9% versus 75.7%; RR 0.80, 95% CI 0.72 to 0.89; NNT 21, 95% CI 15 to 38) and 14 versus 10 days (12 studies, 84.4% versus 78.5%; RR 0.72, 95% CI 0.58 to 0.90; NNT 17, 95% CI 11 to 46); especially in the subgroup of PAC for 10 versus 7 days (17 studies, RR 0.80, 95% CI 0.70 to 0.91) and for 14 versus 10 days (10 studies, RR 0.69, 95% CI 0.52 to 0.91). A trend towards increased H. pylori eradication rates was seen with increased duration of PCN for 10 versus 7 days, and of PAN for 10 versus 7 days and 14 versus 10 days, though this was not statistical significant. The proportion of patients with adverse events, defined by authors, was marginally significantly increased only between 7 days and 14 days (15.5% versus 19.4%; RR 1.21, 95% CI 1.06 to 1.37; NNTH 31, 95% CI 18 to 104) but not for other duration comparisons. The proportion of patients discontinuing treatment due to adverse events was not significantly different between treatment durations.Only limited data were reported for different durations of regimens other than PPI triple therapy. No significant difference of the eradication rate was seen for all regimens according to different durations except for H₂RA bismuth quadruple therapy, where a significantly higher eradication rate was seen for 14 days versus 7 days, however only one study reported outcome data. AUTHORS' CONCLUSIONS Increasing the duration of PPI-based triple therapy increases H. pylori eradication rates. For PCA, prolonging treatment duration from 7 to 10 or from 10 to 14 days is associated with a significantly higher eradication rate. The optimal duration of therapy for PCA and PAN is at least 14 days. More data are needed to confirm if there is any benefit of increasing the duration of therapy for PCN therapy. Information is limited for regimens other than PPI triple therapy; more studies are needed to draw meaningful conclusions for optimal duration of other H. pylori eradication regimens.
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Affiliation(s)
- Yuhong Yuan
- Department of Medicine, Division of Gastroenterology, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada, L8S 4K1
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Abstract
Antimicrobial resistance has continued to undermine many popular anti-Helicobacter pylori therapies. Antibiotic resistance to commonly used anti-H. pylori drugs in China has increased markedly, making China an ideal site to identify regimens that remain effective despite widespread antimicrobial resistance. Bismuth is one of the few antimicrobials to which resistance does not develop. Factors contributing to H. pylori treatment success include host factors (e.g., genetic differences in the metabolism of the drugs used), bacterial factors (e.g., susceptibility), and details of the regimen (e.g., doses, dosing interval, dosing in relation to meals, formulation, etc.). We reviewed the recent experience in China with bismuth-containing quadruple therapies. The experience consists of 16 studies with 25 arms involving 1971 patients to identify successful regimens (defined as reliably obtaining 90% or greater eradication per protocol) deserving further study. Despite high rates of resistance to commonly used antimicrobials, several regimens could achieve high success. These were characteristically 14-day regimens containing a proton pump inhibitor and either tetracycline and metronidazole or furazolidone and amoxicillin. We propose approaches for further development including for optimization and simplification related to convenience and side effects (e.g., twice rather than three or four times daily or administration at the noon and evening meal instead of at breakfast and evening) while maintaining effectiveness of at least 90%. Studies in China identified regimens that were highly effective despite the high prevalence of resistance to metronidazole, fluoroquinolones, and macrolides. Multicenter randomized studies will be required to confirm which is the best.
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Dore MP, Massidda M, Yilmaz O, Demiray-Gürbüz E, Manca A, Bassotti G. Miocamycin-containing triple therapy for H. pylori infection. Helicobacter 2013; 18:285-9. [PMID: 23489645 DOI: 10.1111/hel.12048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION In Northern Sardinia, one-week triple standard therapies containing a proton-pump inhibitor and two antibiotics for H. pylori infection have an average cure rate of 57% largely due to a high prevalence of antimicrobial resistance. The efficacy of miocamycin-containing treatment for 10 days was evaluated. MATERIALS AND METHODS Patients referred to the endoscopy service for dyspeptic symptoms were enrolled. H. pylori infection was defined as a positive rapid urease test, presence of the bacteria on gastric biopsies, and a positive 13C-UBT. Treatment consisted of 10 days with omeprazole 20 mg, miocamycin water-soluble 900 mg, and tinidazole 500 mg all bid. Success was evaluated 40-50 days after the end of therapy and defined by a negative 13C-UBT. Compliance was considered good if at least 90% of the total number of the pills were taken. Fluorescent in situ hybridization (FISH) technique was applied on paraffin-embedded gastric tissue sections to test susceptibility to clarithromycin of the bacteria. RESULTS 50 patients were enrolled (mean age; 52, 36% men). Miocamycin-containing therapy cured 86% (42/49; 95% CI = 72-94%) of infected patients by PP analysis. Susceptibility data (FISH) was available for 38 patients. Cure rates for the 28 with clarithromycin-susceptible infection was 96% vs 50% for those with resistant or mixed infection, (p = .003). Good compliance was recorded in 48 patients. None of the patients discontinued therapy. CONCLUSIONS Miocamycin appears to be a valid alternative for clarithromycin for H. pylori eradication. Head-to-head studies will be needed to ascertain whether it is superior.
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Affiliation(s)
- Maria Pina Dore
- Dipartimento di Medicina Clinica e Sperimentale, University of Sassari, Sassari, Italy.
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Crystal structure, antibacterial and cytotoxic activities of a new complex of bismuth(III) with sulfapyridine. Molecules 2013; 18:1464-76. [PMID: 23348999 PMCID: PMC6270105 DOI: 10.3390/molecules18021464] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Revised: 01/17/2013] [Accepted: 01/17/2013] [Indexed: 01/25/2023] Open
Abstract
A new complex of Bi(III) and sulfapyridine was synthesized and characterized by elemental analysis, atomic absorption spectrometry, conductivity analysis, electrospray ionization mass spectrometry (ESI-MS), infrared spectroscopy, and single crystal X-ray diffraction methods. The antimicrobial and the cytotoxic activities of the compound were investigated. Elemental and conductivity analyses are in accordance to the formulation [BiCl3(C11H11N3O2S)3]. The structure of the complex reveals a distorted octahedral geometry around the bismuth atom, which is bound to three sulfonamidic nitrogens from sulfapyridine, acting as a monodentate ligand, and to three chloride ions. The presence of the compound in solution was confirmed by ESI-MS studies. The complex is 3 times more potent than the ligand against Salmonella typhimurium, 4 times against Staphylococcus aureus, Shigella dysenteriae, and Shigella sonnei and 8 times more potent against Pseudomonas aeruginosa and Escherichia coli. The compound inhibits the growth of chronic myelogenous leukemia cells with an IC50 value of 44 μM whereas the free ligand has no effect up to 100 μM.
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Efficacy of liposomal bismuth-ethanedithiol-loaded tobramycin after intratracheal administration in rats with pulmonary Pseudomonas aeruginosa infection. Antimicrob Agents Chemother 2012; 57:569-78. [PMID: 23147741 DOI: 10.1128/aac.01634-12] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We sought to investigate alterations in quorum-sensing signal molecule N-acyl homoserine lactone secretion and in the release of Pseudomonas aeruginosa virulence factors, as well as the in vivo antimicrobial activity of bismuth-ethanedithiol incorporated into a liposome-loaded tobramycin formulation (LipoBiEDT-TOB) administered to rats chronically infected with P. aeruginosa. The quorum-sensing signal molecule N-acyl homoserine lactone was monitored by using a biosensor organism. P. aeruginosa virulence factors were assessed spectrophotometrically. An agar beads model of chronic Pseudomonas lung infection in rats was used to evaluate the efficacy of the liposomal formulation in the reduction of bacterial count. The levels of active tobramycin in the lungs and the kidneys were evaluated by microbiological assay. LipoBiEDT-TOB was effective in disrupting both quorum-sensing signal molecules N-3-oxo-dodeccanoylhomoserine lactone and N-butanoylhomoserine lactone, as well as significantly (P < 0.05) reducing lipase, chitinase, and protease production. At 24 h after 3 treatments, the CFU counts in lungs of animals treated with LipoBiEDT-TOB were of 3 log(10) CFU/lung, comparated to 7.4 and 4.7 log(10) CFU/lung, respectively, in untreated lungs and in lungs treated with free antibiotic. The antibiotic concentration after the last dose of LipoBiEDT-TOB was 25.1 μg/lung, while no tobramycin was detected in the kidneys. As for the free antibiotic, we found 6.5 μg/kidney but could not detect any tobramycin in the lungs. Taken together, LipoBiEDT-TOB reduced the production of quorum-sensing molecules and virulence factors and could highly improve the management of chronic pulmonary infection in cystic fibrosis patients.
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Abstract
Helicobacter pylori resistance rates to antibiotics vary in different countries and even in different regions of the same country. Choice of treatment is strongly dependent on antibiotic resistance rates. In some countries, triple therapy with a proton-pump inhibitor, amoxicillin, and clarithromycin is still the best option, but eradication results fall short of what would be desired (90-95%) in countries with clarithromycin resistance >20%, bismuth-containing quadruple therapy, or nonbismuth sequential or concomitant therapies may then be the preferred option. Newer antibiotic regimens are awaited. Vaccination would be the best option, especially for developing countries, but little progress has been made in designing a vaccine.
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Affiliation(s)
- Bojan Tepes
- Department of Gastroenterology, Medical Centre Rogaska, Rogaska Slatina, Slovenia
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