EFFICACY OF MODIFIED BISMUTH QUADRUPLE THERAPY (RBMA) AS FIRST-LINE THERAPY FOR ERADICATION OF HELICOBACTER PYLORI IN PATIENTS WITH CHRONIC GASTRITIS

2019 ◽  
pp. 28-32
Author(s):  
Van Huy Tran
Keyword(s):  
Helicobacter Pylori ◽  
Adverse Effects ◽  
Chronic Gastritis ◽  
Eradication Rate ◽  
High Rate ◽  
First Line ◽  
Helicobacter Pylori Eradication ◽  
Quadruple Therapy ◽  
First Line Therapy ◽  
Line Therapy

Background and aims: Efficacy with substitution of tetracycline with amoxicillin, an antibiotics having a very low resistance rate and a high tolerability, in bismuth quadruple therapy (BQT) have not been studied in Vietnam. Our study aimed to evaluate the efficacy and tolerability of modified BQT vs. standard BQT for first-line Helicobacter pylori eradication. Patients and methods: This is a randomized, prospective study. 120 patients with H.pylori positive-chronic gastritis were randomly divided into two groups. The RBMA group containing rabeprazole 20 mg, bismuth subsalicylic 524mg, metronidazole 500mg, amoxicillin 1000mg, all 2 times a day, for 14 days. The RBMT group received rabeprazole, bismuth subsalicylic, metronidazole and tetracycline. Evaluation for compliance and drug-related side effects were evaluated at the end of two weeks. 4-6 weeks after the end of treatment, the H.pylori eradication rate was determined by the C13urease breath test. Results: Eradication rate was not statistically significative different between the RBMA and the RBMT: 91.2%; 95% confidence interval, 78.2% - 96.7%) vs. 90%; 95% CI, 81.6% - 96.3%) by per-protocol analysis (p = 0.42) and 86.7% (95%CI, 75.84% - 93.09%) vs. 75% (95%CI, 62.1% - 85.3%) by intention-to-treat analysis (ITT, p = 0.06). Adverse effects were significant higher in the RBMT group than in the RBMA group (48.3% vs. 26.7%; p = 0.071) and rate of good compliance was significantly higher in RBMA group than in RBMT group (p < 0.05). Conclusion: The modified BQT including rabeprazole, bismuth, metronidazole and amoxicillin achieved a fairly high rate of H.pylori infection eradication with a higher compliance and lower rate of adverse effects compared to the BQT in patients with chronic gastritis. Further studies need to conduct to confirm this new regimens as a first-line therapy in our country. Key words: Modified bismuth quadruple therapy, BQT, Helicobacter pylori eradication

scholarly journals Current status of first- and second-line Helicobacter pylori eradication therapy in the metropolitan area: a multicenter study with a large number of patients

2019 ◽  
Vol 12 ◽  
pp. 175628481985851 ◽  
Author(s):  
Hideki Mori ◽  
Hidekazu Suzuki ◽  
Fumio Omata ◽  
Tatsuhiro Masaoka ◽  
Daisuke Asaoka ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Metropolitan Area ◽  
Eradication Rate ◽  
Eradication Therapy ◽  
Second Line ◽  
Independent Factor ◽  
First Line ◽  
Helicobacter Pylori Eradication ◽  
First Line Therapy ◽  
Line Therapy

Background: The environment surrounding Helicobacter pylori eradication treatment is dramatically changing. Recently, vonoprazan, a first-in-class potassium-competitive acid blocker (P-CAB), was introduced onto the market in 2015. The aging of Japan’s demographic structure is becoming pronounced. In this study, we examined the trend of the eradication rate of H. pylori in the metropolitan area and examined factors concerning successful eradication. Methods: We collected data from 20 hospitals in the Tokyo metropolitan area on patients who received first-line eradication therapy with a proton-pump inhibitor (PPI)/P-CAB, amoxicillin, and clarithromycin for 1 week and second-line eradication therapy with a PPI/P-CAB, amoxicillin, and metronidazole for 1 week from 2013 to 2018. The annual eradication rate and associated factors for successful eradication were analyzed. Results: We collected data of 4097 and 3572 patients in the first- and second-line eradication therapies, respectively. The eradication rate decreased from 2013 to 2014 and increased again from 2015 to 2018 with the first-line therapy [the eradication rates in 2013, 2014, 2015, 2016, 2017 and 2018 were 71.8%, 63.7%, 78.5%, 84.6%, 89.7 and 90.1%, respectively, in the per protocol (PP)]. The second-line eradication rates were 90.0%, 82.6%, 88.8%, 87.5%, 91.8% and 90.1% in 2013, 2014, 2015, 2016, 2017 and 2018, respectively, in PP. Vonoprazan was an independent factor for successful eradication in not only first-line, but also second-line eradication. Age over 75 years was an independent factor for eradication failure in both first- and second-line eradication therapies. Conclusion: The eradication rate improved from 2015 to 2018 with the first-line therapy because of the introduction of vonoprazan in the market. The eradication rates with first- and second-line regimens in elderly patients were lower than those in younger patients.

scholarly journals Additive Effect of Pronase on the Eradication Rate of First-Line Therapy for Helicobacter pylori Infection

Gut and Liver ◽  
2015 ◽  
Vol 9 (3) ◽  
Author(s):  
Chang Seok Bang ◽  
Yeon Soo Kim ◽  
Sang Hyun Park ◽  
Jin Bong Kim ◽  
Gwang Ho Baik ◽  
...  
Keyword(s):  
Helicobacter Pylori ◽  
Eradication Rate ◽  
Helicobacter Pylori Infection ◽  
Additive Effect ◽  
First Line ◽  
First Line Therapy ◽  
Line Therapy

scholarly journals Is It Time for Quadruple Therapy to be First Line?

2003 ◽  
Vol 17 (suppl b) ◽  
pp. 33B-35B ◽  
Author(s):  
Loren Laine
Keyword(s):  
Triple Therapy ◽  
Randomized Trials ◽  
Eradication Rate ◽  
First Line ◽  
Quadruple Therapy ◽  
First Line Therapy ◽  
Clarithromycin Resistance ◽  
Line Therapy ◽  
Metronidazole Resistance ◽  
H Pylori

The most commonly used regimen forHelicobacter pyloritherapy at present is twice-daily proton pump inhibitor (PPI)-based triple therapy. Bismuth-based therapy is the next most common treatment used by gastroenterologists. When a PPI is combined with bismuth-based triple therapy (quadruple therapy), eradication rates are increased as compared with the triple therapy alone. Three separate randomized trials from three continents that compare quadruple therapy and PPIbased triple therapy revealed remarkably similar results. Eradication rates with PPI-based triple therapy and quadruple therapy were not significantly different. The eradication rates with quadruple therapy were 3% to 6% higher than PPI triple therapy, indicating that quadruple therapy should be no less effective than PPI triple therapy. Furthermore, these two therapies had similar rates of compliance and adverse events.The major potential benefit of the quadruple therapy relates to antibiotic resistance. In patients with clarithromycin resistance, PPIbased triple therapy, but not quadruple therapy, had a significantly lower eradication rate. However, due to its ability to largely overcome metronidazole resistance, quadruple therapy had little if any decrement in eradication rates compared with PPI triple therapy in patients with metronidazole-resistantH pylori. Therefore, quadruple therapy can be considered a first line therapy forH pylori.

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