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CompletedNCT02317445Updated Dec 16, 2014

Relationship of Helicobacter Pylori Eradication Therapy and Long-term Outcome in Acute Coronary Syndrome

An observational study in Acute Coronary Syndrome, sponsored by Capital Medical University. Completed. Open to participants aged 50 Years to 73 Years. Per ClinicalTrials.gov, last updated 2014-12-16.

Sponsored by Capital Medical University · Observational

Study type
Observational
Model
Case-control
Time perspective
Retrospective
Enrollment
472
Ages
50 Years to 73 Years
Sex
All
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Study summary

Objective: To investigate the relationship between Helicobacter pylori (Hp) infection and the prognosis of acute coronary syndrome (ACS) in a Chinese population and to explore the significance of Hp eradication therapy in preventing major adverse cardiac events (MACE) and upper gastrointestinal bleeding (UGIB) in patients on dual antiplatelet treatment. Methods: To analyze 472 ACS patients with drug-eluting stent (DES) implantation from January 1, 2008 to December 31, 2010 in the department of cardiology at Beijing Mentougou District Hospital. Patients were divided into three groups: Group 1, the Hp-negative patients (Hp-); Group 2, the Hp-positive patients with eradication therapy (Hp+ Therapy); and Group 3, the Hp-positive patients without eradication therapy (Hp+ No Therapy). All patients took 13C urea breath test, high sensitive C-reactive protein (hs-CRP),homocysteine (HCY) and other biochemical indicators. The investigators explored the correlations of Hp eradication therapy with MACE (including recurrent myocardial infarction, revascularization and death) and UGIB after 3 to 5 years of follow-up using survival analysis.

Read the detailed description

This study is a single-center and random analysis. The consecutive hospitalized patients with ACS at Beijing Mentougou District Hospital from January 1, 2008 to December 31, 2010 were enrolled. Figure 1 is a flow diagram of the trial. There were 259 males (54.9%) and 213 females (45.1%) with an average age of 61.1 ± 11.0 years. Patient's history, physical examination, and laboratory results were recorded. All patients were divided into the Hp-negative group (Hp-, group 1.) and the Hp-positive group (Hp+). The Hp+ group were randomly divided into two groups: Group 2, the Hp+ with eradication therapy (Hp+ Therapy); and Group 3, the Hp+ without eradication therapy (Hp+No Therapy).

02

Conditions studied

  • Acute Coronary Syndrome

Keywords

  • helicobacter pylori
  • eradication therapy
  • major adverse cardiac events
  • long-term outcome
  • To explore the significance of Hp eradication therapy in preventing major adverse cardiac events (MACE) and upper gastrointestinal bleeding (UGIB).
03

In context

Acute Coronary Syndrome

1,492 studies on the registry are indexed under Acute Coronary Syndrome; 270 are open to participants now.

This study's enrollment of 472 is close to the median of 500 across 579 observational studies indexed under Acute Coronary Syndrome.

Browse Acute Coronary Syndrome studies →

Lead sponsor

Capital Medical University is the lead sponsor of 293 studies on the registry; 91 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
50 Years to 73 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

This study is a single-center and random analysis. The consecutive hospitalized patients with ACS at Beijing Mentougou District Hospital from January 1, 2008 to December 31, 2010 were enrolled. Figure 1 is a flow diagram of the trial. There were 259 males (54.9%) and 213 females (45.1%) with an average age of 61.1 ± 11.0 years. Patient's history, physical examination, and laboratory results were recorded. All patients were divided into the Hp-negative group (Hp-, group 1.) and the Hp-positive group (Hp+). The Hp+ group were randomly divided into two groups: Group 2, the Hp+ with eradication therapy (Hp+ Therapy); and Group 3, the Hp+ without eradication therapy (Hp+No Therapy).

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients were diagnosed acute coronary syndrome according to the 2012 ESC guidlines.
  • All the patients took dual antiplatelet therapy after implanting drug eluting stent (DES) during hospitalization and had no any digestive symptoms.

Exclusion criteria

Exclusion Criteria:

  • Subjects who had suffered gastrointestinal bleeding within one week.
  • Subjects had a history of gastrectomy, cardiac insufficiency, thyroid dysfunction, and any ongoing infections were eliminated.
  • Patients with the use of antibiotics, bismuth, or sucralfate within one month and without impanting DES because of ACS during hospitalization were also excluded.
  • Those who had gastrointestinal symptoms, such as acid reflux, heartburn, nausea, vomiting, stomach ache and diarrhea, or had a confirmed peptic ulcer with Hp infection were excluded because these patients may be taken gastroenterology treatment.
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Study design

Observational model
Case-control
Time perspective
Retrospective
Enrollment
472 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Comparison of the MACE among the three groups.

    The Hp+ without eradication therapy had more MACE than Hp-positive patients with eradication therapy

    Time frame: January 1, 2008 to December 31, 2013, up to 6 years

Secondary outcomes

  1. Comparison of the upper gastrointestinal bleeding among the three groups.

    The Hp-infected patients without eradication therapy had more UGIB than Hp-positive patients with eradication therapy.

    Time frame: January 1, 2008 to December 31, 2013, up to 6 years

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Budzynski J, Klopocka M, Bujak R, Swiatkowski M, Pulkowski G, Sinkiewicz W. Autonomic nervous function in Helicobacter pylori-infected patients with atypical chest pain studied by analysis of heart rate variability. Eur J Gastroenterol Hepatol. 2004 May;16(5):451-7. doi: 10.1097/00042737-200405000-00003. PubMed 15097036 ↗
  • Fashner J, Gitu AC. Common Gastrointestinal Symptoms: dyspepsia and Helicobacter pylori. FP Essent. 2013 Oct;413:24-8. PubMed 24124704 ↗
  • Roesler BM, Rabelo-Goncalves EM, Zeitune JM. Virulence Factors of Helicobacter pylori: A Review. Clin Med Insights Gastroenterol. 2014 Mar 27;7:9-17. doi: 10.4137/CGast.S13760. eCollection 2014. PubMed 24833944 ↗
  • Ng FH, Wong SY, Lam KF, Chang CM, Lau YK, Chu WM, Wong BC. Gastrointestinal bleeding in patients receiving a combination of aspirin, clopidogrel, and enoxaparin in acute coronary syndrome. Am J Gastroenterol. 2008 Apr;103(4):865-71. doi: 10.1111/j.1572-0241.2007.01715.x. Epub 2008 Jan 2. PubMed 18177451 ↗
  • Lee SD. Notice of retraction of "The experience with Ritleng intubation system in patients with congenital nasolacrimal duct obstruction". J Chin Med Assoc 2004;67:344-8. J Chin Med Assoc. 2008 Jun;71(6):329. doi: 10.1016/S1726-4901(08)70133-3. No abstract available. PubMed 18567567 ↗
  • Rogha M, Nikvarz M, Pourmoghaddas Z, Shirneshan K, Dadkhah D, Pourmoghaddas M. Is helicobacter pylori infection a risk factor for coronary heart disease? ARYA Atheroscler. 2012 Spring;8(1):5-8. PubMed 23056092 ↗
  • Vafaeimanesh J, Hejazi SF, Damanpak V, Vahedian M, Sattari M, Seyyedmajidi M. Association of Helicobacter pylori infection with coronary artery disease: is Helicobacter pylori a risk factor? ScientificWorldJournal. 2014 Jan 16;2014:516354. doi: 10.1155/2014/516354. eCollection 2014. PubMed 24574896 ↗
  • Lee SY. Current progress toward eradicating Helicobacter pylori in East Asian countries: differences in the 2013 revised guidelines between China, Japan, and South Korea. World J Gastroenterol. 2014 Feb 14;20(6):1493-502. doi: 10.3748/wjg.v20.i6.1493. PubMed 24587624 ↗
  • Hamm CW, Bassand JP, Agewall S, Bax J, Boersma E, Bueno H, Caso P, Dudek D, Gielen S, Huber K, Ohman M, Petrie MC, Sonntag F, Uva MS, Storey RF, Wijns W, Zahger D; ESC Committee for Practice Guidelines. ESC Guidelines for the management of acute coronary syndromes in patients presenting without persistent ST-segment elevation: The Task Force for the management of acute coronary syndromes (ACS) in patients presenting without persistent ST-segment elevation of the European Society of Cardiology (ESC). Eur Heart J. 2011 Dec;32(23):2999-3054. doi: 10.1093/eurheartj/ehr236. Epub 2011 Aug 26. No abstract available. PubMed 21873419 ↗
  • Wright RS, Anderson JL, Adams CD, Bridges CR, Casey DE Jr, Ettinger SM, Fesmire FM, Ganiats TG, Jneid H, Lincoff AM, Peterson ED, Philippides GJ, Theroux P, Wenger NK, Zidar JP, Anderson JL, Adams CD, Antman EM, Bridges CR, Califf RM, Casey DE Jr, Chavey WE 2nd, Fesmire FM, Hochman JS, Levin TN, Lincoff AM, Peterson ED, Theroux P, Wenger NK, Wright RS. 2011 ACCF/AHA focused update of the Guidelines for the Management of Patients with Unstable Angina/Non-ST-Elevation Myocardial Infarction (updating the 2007 guideline): a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines developed in collaboration with the American College of Emergency Physicians, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons. J Am Coll Cardiol. 2011 May 10;57(19):1920-59. doi: 10.1016/j.jacc.2011.02.009. Epub 2011 Mar 28. No abstract available. PubMed 21450428 ↗
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Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jan 2008, a primary completion of Dec 2010 and a completion of Jan 2013. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 13, 2014
First posted
Dec 16, 2014
Start
Jan 2008
Primary completionActual
Dec 2010
CompletionActual
Jan 2013
Last update
Dec 16, 2014
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 16, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02317445
Responsible party
Buxing Chen (Beijing Tiantan Hospital, Capital Medical University) — Principal investigator
First posted
Dec 16, 2014
Start date
Jan 2008
Primary completion
Dec 2010
Completion
Jan 2013
Last update
Dec 16, 2014

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2014. You cannot join it, but the record below documents what was studied.

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