Impact of Eradication Therapy on Helicobacter Pylori Infection With Chronic Obstructive Pulmonary Disease:
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.
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.
調査の概要
詳細な説明
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:
- Recruitment of COPD patients based on clinical diagnosis and spirometry.
- Collection of baseline demographics, smoking history, comorbidities, exacerbation and hospitalization rate in past year.
- 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.
- 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.
- 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%).
- 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.
- Reassess COPD symptoms, lung function, and biomarkers 3months after successful H. pylori eradication.
- Follow up H. Pylori-positive COPD patients for 3months by reassessment of COPD symptoms, lung function and biomarkers.
研究の種類
入学 (推定)
段階
- フェーズ 1
連絡先と場所
研究連絡先
- 名前:Hanaa A Nofal, MD
- 電話番号:01006806873
- メール:hanofal@medicine.zu.edu.eg
研究連絡先のバックアップ
- 名前:Maha Elsayed Alsadik, MD
- 電話番号:01127123248
研究場所
-
-
Elsharkia
-
Zagazig、Elsharkia、エジプト、44
- 募集
- Zagazig University outpatients clinics
-
コンタクト:
- Hanaa A Nofal, MD
- 電話番号:01006806873
- メール:hanofal@medicine.zu.edu.eg
-
コンタクト:
- Maha Elsayed Alsadik, MD
- 電話番号:01127123248
-
主任研究者:
- Maha Elsayed Alsadik, MD
-
主任研究者:
- Enaam Mohammed Ismail ElSayed, MD
-
副調査官:
- Hanaa A Nofal, MD
-
副調査官:
- Ahmed Attia Abdelmoaty, MD
-
-
参加基準
適格基準
就学可能な年齢
- 大人
- 高齢者
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- 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.
Exclusion Criteria:
- 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
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:なし
- 介入モデル:単一グループの割り当て
- マスキング:なし(オープンラベル)
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:Intervention group
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).
|
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%).
Follow up H. Pylori-positive COPD patients for 3months by reassessment of COPD symptoms, lung function and biomarkers. |
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Primary outcome measures
時間枠:3 months
|
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
|
3 months
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
FEV₁ - Volume exhaled in first second
時間枠:3 months after treatment
|
FEV₁ - Volume exhaled in first second; Unit: L
|
3 months after treatment
|
|
FVC - Total forced exhaled volume; Unit: L
時間枠:3 months after treatment
|
FVC - Total forced exhaled volume; Unit: L
|
3 months after treatment
|
|
FEV₁/FVC Ratio - Airflow limitation index; Unit: %
時間枠:3 months after treatment
|
FEV₁/FVC Ratio - Airflow limitation index; Unit: %
|
3 months after treatment
|
|
CRP - Systemic inflammation marker; Unit: mg/L
時間枠:3 months after treatment
|
CRP - Systemic inflammation marker; Unit: mg/L
|
3 months after treatment
|
|
PaO₂ - Arterial oxygen pressure; Unit: mmHg
時間枠:3 months after treatment
|
PaO₂ - Arterial oxygen pressure; Unit: mmHg
|
3 months after treatment
|
|
PaCO₂ - Arterial carbon dioxide pressure; Unit: mmHg
時間枠:3 months after treatment
|
PaCO₂ - Arterial carbon dioxide pressure; Unit: mmHg
|
3 months after treatment
|
|
pH - Arterial acid base status
時間枠:3 months after treatment
|
pH - Arterial acid base status
|
3 months after treatment
|
協力者と研究者
スポンサー
捜査官
- スタディディレクター:Hanaa A Nofal, MD、Faculty of medicine, Zagazig university
出版物と役立つリンク
一般刊行物
- 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
研究記録日
主要日程の研究
研究開始 (実際)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- Helicobacter pylori infection
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
米国で製造され、米国から輸出された製品。
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