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Chronic Obstructive Pulmonary Disease (COPD)Phase 1NCT07574879

Impact of Eradication Therapy on Helicobacter Pylori Infection With Chronic Obstructive Pulmonary Disease:

A Phase 1 study testing Eradication of Helcobacter Pylori in people with Chronic Obstructive Pulmonary Disease (COPD) and With Poitive H Pylori, run by Zagazig University at 1 site in Egypt.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

Helicobacter pylori (HP) is a well-established pathogen responsible for chronic gastritis and peptic ulcer disease. Its presence has been implicated in the development of gastric malignancies such as adenocarcinoma and mucosa-associated lymphoid tissue lymphoma. Chronic H. Read more about this study

Who is it for?
Ages 40 years and older
What is being tested?
Eradication of Helcobacter Pylori
Could I receive a placebo?
No, everyone receives an active treatment
How many people
54 participants
Where
1 siteEgypt
Study dates
1 Mar 2026to Dec 2026
Phase
Phase 1
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adults aged ≥40 years.
  • Diagnosed with COPD confirmed by spirometry (post-bronchodilator FEV1/FVC < 0.70) and H. pylori positive.
  • Willing to participate and provide consent for testing and follow-up.

Who cannot join

  • patients with asthma, known peptic ulcers, acute exacerbation of COPD
  • patients who took antibiotics and PPIs within the last month,
  • Patients who took histamine-2-receptor antagonists within the last week or antacid within the last 24 hours a
  • those having H. pylori eradication treatment within the last 6 months

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Hanaa A Nofal, MD contact

01006806873

hanofal@medicine.zu.edu.eg

Maha Elsayed Alsadik, MD contact

01127123248

Egypt1 site, 1 recruiting
  • Zagazig University outpatients clinics

    Zagazig, Elsharkia, 44

    Hanaa A Nofal, MD, 01006806873, hanofal@medicine.zu.edu.eg

    Maha Elsayed Alsadik, MD, 01127123248

    Recruiting

Other trials in Egypt

About this study

Official title: Impact of Eradication Therapy on Helicobacter Pylori Infection in Patients With Chronic Obstructive Pulmonary Disease: A Prospective Study

Helicobacter pylori (HP) is a well-established pathogen responsible for chronic gastritis and peptic ulcer disease. Its presence has been implicated in the development of gastric malignancies such as adenocarcinoma and mucosa-associated lymphoid tissue lymphoma. Chronic H. pylori infection is associated with systemic inflammatory responses and various extra gastric diseases, including cardiovascular, metabolic, and neurological disorders. Furthermore, H. pylori infection contributes to gastrointestinal dysbiosis by interacting with gastrointestinal microbiota, which may be involved in gastric carcinogenesis and other systemic disorders. Growing evidence highlights the role of dysbiosis in chronic respiratory diseases, such as chronic obstructive pulmonary disease (COPD) and asthma. Emerging epidemiological evidence suggests a potential association between H. pylori infection and respiratory diseases, including COPD. Several observational studies and meta-analyses have found that H. pylori infection in patients with COPD may be associated with systemic inflammatory markers and altered pulmonary function parameters. Despite these associations, the causal mechanisms underlying this relationship remain unclear. Furthermore, it is uncertain whether eradication of H. pylori yields measurable benefits on clinical outcomes in COPD patients. So, Our aim to evaluate changes in symptoms, pulmonary function, and inflammatory markers after H. pylori eradication therapy in the H. pylori-positive COPD patients.

an intervention study (quasi experimental), study will be carried out in the inpatient and outpatient clinics of Chest Department, Faculty of Medicine, Zagazig University hospitals.

Read more

Patients included in the study:

well controlled COPD patients attending outpatient clinics for a period of 6 months fulfilling inclusion and exclusion criteria will be included in this study.

Read the detailed description

An interventional study (quasi experimental), this study will be carried out in the inpatient and outpatient clinics of Chest Department, Faculty of Medicine, Zagazig University hospitals.

-Patients included in the study: well controlled COPD patients attending outpatient clinics for a period of 6 months fulfilling inclusion and exclusion criteria will be included in this study.

  • Sample size and selection:

All patients diagnosed with COPD attending the study setting during the specified study period (6 months) will be consecutively screened for Helicobacter pylori infection.

All eligible patients who test positive for H. pylori will be included in the intervention phase and will receive eradication therapy.

Therefore, a consecutive sampling technique will be applied, all available cases during the study period will be recruited. Based on the expected patient flow, approximately 108 COPD patients are anticipated over 6 months, with an estimated H. pylori prevalence of around 50% ((Abdelmagied etal., 2019), yielding about 54 cases for the intervention phase.

All patients will be subjected to the following:

  1. Recruitment of COPD patients based on clinical diagnosis and spirometry.
  2. Collection of baseline demographics, smoking history, comorbidities, exacerbation and hospitalization rate in past year.
  3. Assess H. pylori status using Stool antigen test for H. pylori by using rapid antigen test (lateral flow immune chromatographic test with a monoclonal antibody). It has a positive line to indicate a positive reading accompanied by a control line. The test has been reported sensitivity and specificity (94% and 98% respectively.
  4. Perform COPD Assessment Test (CAT): The COPD Assessment Test (CAT) is a questionnaire for people with COPD. It is designed to measure the impact of COPD on a person's life, and how this change over time. The CAT is a standard and validated test containing eight items for the evaluation of the impact of COPD on health status.
  5. Perform baseline spirometry and laboratory markers.
  6. Assess severity of COPD according to GOLD criteria: stage 1 (FEV1 ≥80%), stage 2 (50% ≤FEV1 <80%), stage 3 (30% ≤FEV1 <50%), and stage 4 (FEV1 <30%).
  7. For H. pylori-positive COPD patients: administer standard eradication therapy according to current guidelines (e.g., triple or quadruple therapy with proton pump inhibitor and antibiotics). Confirm eradication at least 4-6 weeks after therapy completion via repeat testing.
  8. Reassess COPD symptoms, lung function, and biomarkers 3months after successful H. pylori eradication.
  9. Follow up H. Pylori-positive COPD patients for 3months by reassessment of COPD symptoms, lung function and biomarkers.
Being tested
Eradication of Helcobacter Pylori
Keywords
Chronic Obstructive Pulmonary disease, Helicobacter Pylori, eradication therapy
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Eradication of Helcobacter PyloriDrug

    Pre- intervention stage:Perform baseline spirometry and laboratory markers, Assess severity of COPD according to GOLD criteria: stage 1 (FEV1 ≥80%), stage 2 (50% ≤FEV1 <80%), stage 3 (30% ≤FEV1 <50%), and stage 4 (FEV1 <30%).

    • Intervention stage: For H. pylori-positive COPD patients: administer standard eradication therapy according to current guidelines (e.g., triple or quadruple therapy with proton pump inhibitor and antibiotics). Confirm eradication at least 4-6 weeks after therapy completion via repeat testing.
    • Post intervention: Reassess COPD symptoms, lung function, and biomarkers 3 months after successful H. pylori eradication.

    Follow up H. Pylori-positive COPD patients for 3months by reassessment of COPD symptoms, lung function and biomarkers.

Study groups in NCT07574879
Study groupRoleWhat they receive
Intervention groupExperimentalFor H. pylori-positive COPD patients: administer standard eradication therapy according to current guidelines (e.g., triple or quadruple therapy with proton pump inhibitor and antibiotics).
Receives: Drug: Eradication of Helcobacter Pylori

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Primary outcome measures

    Reassess symptoms of COPD by COPD Assessment Test (CAT): The COPD Assessment Test (CAT) is a questionnaire for people with COPD. It is designed to measure the impact of COPD on a person's life, and how this change over time. The CAT is a standard and validated test containing eight items for the evaluation of the impact of COPD on health status

    Measured: 3 months

Secondary outcomes (7)
  1. FEV₁ - Volume exhaled in first second

    FEV₁ - Volume exhaled in first second; Unit: L

    Measured: 3 months after treatment

  2. FVC - Total forced exhaled volume; Unit: L

    FVC - Total forced exhaled volume; Unit: L

    Measured: 3 months after treatment

  3. FEV₁/FVC Ratio - Airflow limitation index; Unit: %

    FEV₁/FVC Ratio - Airflow limitation index; Unit: %

    Measured: 3 months after treatment

  4. CRP - Systemic inflammation marker; Unit: mg/L

    CRP - Systemic inflammation marker; Unit: mg/L

    Measured: 3 months after treatment

  5. PaO₂ - Arterial oxygen pressure; Unit: mmHg

    PaO₂ - Arterial oxygen pressure; Unit: mmHg

    Measured: 3 months after treatment

  6. PaCO₂ - Arterial carbon dioxide pressure; Unit: mmHg

    PaCO₂ - Arterial carbon dioxide pressure; Unit: mmHg

    Measured: 3 months after treatment

  7. pH - Arterial acid base status

    pH - Arterial acid base status

    Measured: 3 months after treatment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 May 2026
  2. Study start1 Mar 2026
  3. Primary completion30 Sep 2026
  4. Study completionDec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
All patients diagnosed with COPD attending the study setting during the specified study period (6 months) will be consecutively screened for Helicobacter pylori infection. All eligible patients who test positive for H. pylori will be included in the intervention phase and will receive eradication therapy. Therefore, a consecutive sampling technique will be applied, all available cases during the study period will be recruited. Based on the expected patient flow, approximately 108 COPD patients are anticipated over 6 months, with an estimated H. pylori prevalence of around 50%, yielding about 54 cases for the intervention phase administer standard eradication therapy according to current guidelines (e.g., triple or quadruple therapy with proton pump inhibitor and antibiotics). Confirm eradication at least 4-6 weeks after therapy completion via repeat testing. 8. Reassess COPD symptoms, lung function, and biomarkers 3months after successful H. pylori eradication.
Masking
None (open label)
Enrolment
54 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07574879
Sponsor's protocol ID
Helicobacter pylori infection
Status last verified
Mar 2026
First submitted
31 Mar 2026
Last updated
5 Nov 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Due to privacy of data

Publications

  • 1. Global Initiative for Chronic Obstructive Lung Disease. Global Strategy for prevention, diagnosis and management of COPD: 2025 Report. Available on: goldcopd.org/. 2. World Health Organization. Chronic obstructive pulmonary disease (COPD). Available on: www.who.int/news-room/fact -sheets/detail/chronic-obstructive-pulmonary-disease-(copd). 3. Malfertheiner P, Camargo MC, El-Omar E, Liou JM, Peek R, Schulz C, et al. Helicobacter pylori infection. Nat Rev Dis Primers. 2023;9:19. 4. Shin DW, Kwon HT, Kang JM, Park JH, Choi HC, Park MS, et al. Association between metabolic syndrome and Helicobacter pylori infection diagnosed by histologic status and serological status. J Clin Gastroenterol. 2012;46:840-5. 5. Bakhti SZ, Latifi-Navid S. Interplay and cooperation of Helicobacter pylori and gut microbiota in gastric carcinogenesis. BMC Microbiol. 2021;21:258. 6. Hou K, Wu ZX, Chen XY, Wang JQ, Zhang D, Xiao C, et al. Microbiota in health and diseases. Signal Transduct Target Ther. 2022;7:135. 7. Li N, Dai Z, Wang Z, Deng Z, Zhang J, Pu J, et al. Gut microbiota dysbiosis contributes to the development of chronic obstructive pulmonary disease. Respir Res. 2021;22:274. 8. Hufnagl K, Pali-Scholl I, Roth-Walter F, Jensen-Jarolim E. Dysbiosis of the gut and lung microbiome has a role in asthma. Semin Immunopathol. 2020;42:75-93. 9. González-Saitz A, Díez-Manglano J. Helicobacter pylori infection in patients with chronic obstructive pulmonary disease. A systematic review and meta-analysis. Rev Clin Esp (Barc). 2025 Apr;225(4):193-203. doi: 10.1016/j.rceng.2024.12.004. Epub 2025 Feb 7. 10. Alexandra J, Baumann., D.O. and Staros E: Helicobacter Pylori Antigen Test. e-medicine. medscape. com/ article/2117821-overview. 2014. 11. Jones PW, Harding G, Berry P, Wiklund I, Chen WH and Kline Leidy N: Development and first validation of the COPD Assessment Test. Eur Respir J.; 2009, 34(3):648-54. 12. Aumpan N, Mahachai V, Vilaichone RK. Management of Helicobacter pylor

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Eradication of Helcobacter Pylori in people with Chronic Obstructive Pulmonary Disease (COPD) and With Poitive H Pylori, run by Zagazig University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 5 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Hanaa A Nofal, MD (01006806873, hanofal@medicine.zu.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary outcome measures (time frame: 3 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07574879, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2026.

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