Helicobacter Pylori Eradication According to DPO-PCR Methods

2019-11-05 16:06:43 | BioPortfolio


Clarithromycin-containing triple therapy is still the primary therapy approved by the Korean government. However, studies of antibiotic resistance has shown that regional resistance pattern to antibiotics such as clarithromycin is increasing. Recent studies show that examining genotype resistance is effective in eradication. Currently dual priming oligonucleotide-polymerase chain reaction (DPO-PCR) is used to measure clarithromycin resistance. There has been no study of comparing the duration of eradication regimens according to DPO-PCR results. The aim of this study is to compare the eradication rate of 7- day triple therapy with 14-day triple therapy in clarithromycin susceptible strains from DPO-PCR. The investigators also aimed to compare the eradication rates of 7-day bismuth quadruple therapy with 14-day bismuth quadruple therapy from clarithromycin resistant strains from DPO-PCR.


This is a multi-center study perform at three tertiary university hospitals. Patients with H. pylori infection will be treated according to their DPO-PCR results. Patients who are susceptible to clarithromycin will be randomized to receive either triple therapy for 7-days or 14-days. Patients who are resistant to clarithromycin will be randomized to receive either bismuth quadruple therpay for 7-days or 14-days. The eradication rates of each regimens and the adverse events of each regimen will be investigated.

Study Design


Helicobacter Pylori Infection


Duration of eradication regimen


Incheon St. Mary's Hospital
Korea, Republic of




Incheon St.Mary's Hospital

Results (where available)

View Results


Published on BioPortfolio: 2019-11-05T16:06:43-0500

Clinical Trials [1616 Associated Clinical Trials listed on BioPortfolio]

Reinfection After Eradication of Helicobacter Pylori Infection

Helicobacter pylori is closely related with gastritis, peptic ulcer, gastric cancer and gastric MALT lymphoma, and it may participate in a variety of parenteral diseases. Infection rates o...

10 vs 14 Days Triple Therapy : H.Pylori Infection Eradication

Helicobacter pylori is a bacterium estimated to colonize in the gastrointestinal tract of the half population in the world. Colonization of this bacteria is suspected to be one of the main...

A Two Week Nitazoxanidebased Quadruple Regimen

Helicobacter pylori (H. pylori) infection is a global health problem as it is associated with peptic ulcers, chronic gastritis, duodenitis, and stomach cancer. Therefore, the eradication ...

The Situation of Re-infection of Helicobacter Pylori After Successful Eradication

The patients who accept the quadruple eradication program of the helicobacter pylori and success to eradicate helicobacter pylori will be followed-up to observe the situation of re-infecti...

Optimal Duration of Antimicrobial Susceptibility Test (AST) Guided Rescue Therapy for Helicobacter Pylori Infection

Strongly evidence supports that H. pylori eradication is an effective approach to reduce the incidence of those pathologies. However, due to the increasing resistance rates to antibiotics,...

PubMed Articles [9340 Associated PubMed Articles listed on BioPortfolio]

Comparison of concomitant therapy versus standard triple-drug therapy for eradication of Helicobacter pylori infection: A prospective open-label randomized controlled trial.

Resistance to commonly used antibiotics against Helicobacter pylori (H. pylori) is increasing rapidly leading to lower success of traditional triple therapy to eradicate H. pylori infection. So, sea...

Effect of vitamin D on Helicobacter pylori infection and eradication: A meta-analysis.

Various studies reported the relationship between Helicobacter pylori (H pylori) and vitamin D, but there is some controversy around that. This study aimed to conduct a meta-analysis to clarify the r...

Cost-Effectiveness Analysis of Helicobacter pylori Eradication Therapy for Prevention of Gastric Cancer: A Markov Model.

Helicobacter pylori (H. pylori) eradication can reduce the prevalence of gastric cancer. However, whether H. pylori eradication therapy should be performed in infected patients, especially in asymptom...

First line eradication treatment of Helicobacter pylori in 2019.

Helicobacter pylori infection is associated with chronic gastric inflammation, peptic ulcer and an increased risk of gastric cancer. Helicobacter eradication traditionally consists of an empirical the...

Helicobacter pylori eradication increases the serum high density lipoprotein cholesterol level in the infected patients with chronic gastritis: A single-center observational study.

Extra-gastric manifestation of Helicobacter pylori infection involves systemic inflammation, which results in the production of several cytokines. Only a few clinical trials have investigated the effe...

Medical and Biotech [MESH] Definitions

Infections with organisms of the genus HELICOBACTER, particularly, in humans, HELICOBACTER PYLORI. The clinical manifestations are focused in the stomach, usually the gastric mucosa and antrum, and the upper duodenum. This infection plays a major role in the pathogenesis of type B gastritis and peptic ulcer disease.

A spiral bacterium active as a human gastric pathogen. It is a gram-negative, urease-positive, curved or slightly spiral organism initially isolated in 1982 from patients with lesions of gastritis or peptic ulcers in Western Australia. Helicobacter pylori was originally classified in the genus CAMPYLOBACTER, but RNA sequencing, cellular fatty acid profiles, growth patterns, and other taxonomic characteristics indicate that the micro-organism should be included in the genus HELICOBACTER. It has been officially transferred to Helicobacter gen. nov. (see Int J Syst Bacteriol 1989 Oct;39(4):297-405).

A species of gram-negative, spiral-shaped bacteria found in the gastric mucosa that is associated with chronic antral gastritis. This bacterium was first discovered in samples removed at endoscopy from patients investigated for HELICOBACTER PYLORI colonization.

Ulceration of the GASTRIC MUCOSA due to contact with GASTRIC JUICE. It is often associated with HELICOBACTER PYLORI infection or consumption of nonsteroidal anti-inflammatory drugs (NSAIDS).

Ulcer that occurs in the regions of the GASTROINTESTINAL TRACT which come into contact with GASTRIC JUICE containing PEPSIN and GASTRIC ACID. It occurs when there are defects in the MUCOSA barrier. The common forms of peptic ulcers are associated with HELICOBACTER PYLORI and the consumption of nonsteroidal anti-inflammatory drugs (NSAIDS).

More From BioPortfolio on "Helicobacter Pylori Eradication According to DPO-PCR Methods"

Quick Search

Relevant Topics

MRSA (methicillin-resistant Staphylococcus aureus)
MRSA (methicillin-resistant Staphylococcus aureus) is a family of bacteria with resistance to one or more major antibiotics. There are currently 17 different strains of MRSA. Two particular strains, EMRSA15 and EMRSA16  account for 96% of MRSA blood...

Polymerase Chain Reaction (PCR)
PCR (Polymerase Chain Reaction) uses the ability of DNA polymerase (enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two ident...

Antiretroviral Therapy Clostridium Difficile Ebola HIV & AIDS Infectious Diseases Influenza Malaria Measles Sepsis Swine Flu Tropical Medicine Tuberculosis Infectious diseases are caused by pathogenic...

Searches Linking to this Trial