The Study of Association of Helicobacter Infections in Biliary Tract Cancers

NCT ID: NCT06909188

Last Updated: 2025-12-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

250 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-03-31

Study Completion Date

2026-05-31

Brief Summary

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Biliary tract carcinoma (BTC) includes gallbladder carcinoma, hilar cholangiocarcinoma, and distal cholangiocarcinoma, intrahepatic cholangiocarcinoma. Chronic infections of the biliary tract are major drivers of cancer. Helicobacter species is one of the most established pro-oncogenic pathogens for gastric malignancy.

In addition to H Pylori, H.bilis and H.hepaticus have a significantly higher incidence in bile from biliary tract and gallbladder cancer patients than in patients with gallstones/cholecystitis.

This, together with the high prevalence of gallstones, makes it important to evaluate the role of Helicobacter in biliary tract cancers. This study aims to compare the prevalence of Helicobacter sp.(pylori, bilis, hepaticus). This study will include biliary tract carcinoma patients, benign biliary disease patients, high risk conditions for malignancy and Voluntary healthy liver donors with no gallbladder pathology. HPE samples will be assessed and association of Helicobacter sp will be studied among all 4 arms.

All the included samples will be assessed for Helicobacter species using giemsa stain and DNA PCR. Results will be studied to compare the prevalence of Helicobacter sp. in Biliary tract malignancy and benign biliary diseases.

Detailed Description

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Biliary tract carcinoma (BTC) includes gallbladder carcinoma, hilar cholangiocarcinoma, and distal cholangiocarcinoma, intrahepatic cholangiocarcinoma. Chronic infections of the biliary tract are major drivers of cancer. Helicobacter species is one of the most established pro-oncogenic pathogens for gastric malignancy. However, its role in biliary tract cancers is under investigation. Recently H. pylori has been associated with gallbladder pathologies like cholelithiasis, cholecystitis, choledocholithiasis, gallbladder polyps. However, some studies have also reported that chronic inflammation due to H. pylori infection causes biliary tract cancer. On the other hand, some studies have reported no association between H. pylori infection and gallbladder diseases. In addition to H Pylori, H.bilis and H.hepaticus have a significantly higher incidence in bile from biliary tract and gallbladder cancer patients than in patients with gallstones/cholecystitis.This, together with the high prevalence of gallstones, makes it important to evaluate the role of Helicobacter in biliary tract cancers. This study aims to compare the prevalence of Helicobacter sp.(pylori, bilis, hepaticus). This study will include biliary tract carcinoma patients, benign biliary disease patients, high risk conditions for malignancy and Voluntary healthy liver donors with no gallbladder pathology. HPE samples will be assessed and association of Helicobacter sp will be studied among all 4 arms. Patients who have received H pylori eradication therapy will be excluded. All the included samples will be assessed for Helicobacter species using giemsa stain and DNA PCR. Results will be studied to compare the prevalence of Helicobacter sp. in Biliary tract malignancy and benign biliary diseases.

Conditions

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Biliary Tract Cancer

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

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Benign Gallbladder diseases

Patients with Benign biliary disease(Gall stone disease) undergoing laparoscopic cholecystectomy will be included

No intervention

Intervention Type OTHER

No Intervention

Voluntary healthy liver donors

Gall bladder samples from Voluntary Healthy liver donors undergoing cholecystectomy.

No intervention

Intervention Type OTHER

No Intervention

Patients with high risk for biliary tract malignancy

Choledochal cyst Porcelain Gallbladder Gallbladder polyp Primary sclerosing cholangitis Metaplasia / dysplasia Stone size \>2 cm Abnormal pancreaticobiliary duodenal junction(APBDJ) Cholecystectomy in patients with both Hepatitis B and C Cholecystectomy in age more than 60 years Hepaticolithiasis

No intervention

Intervention Type OTHER

No Intervention

Biliary tract carcinoma

Patients undergoing surgery for biliary tract cancers.

No intervention

Intervention Type OTHER

No Intervention

Interventions

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No intervention

No Intervention

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Biliary tract carcinoma patients who underwent resection
* Patients undergoing cholecystectomy for benign biliary disease.
* Voluntary healthy liver donors with no gallbladder pathology
* Patients undergoing cholecystectomy for conditions with high risk of malignancy

Exclusion Criteria

* Patients who have taken H.pylori eradication previously in last three months.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Institute of Liver and Biliary Sciences, India

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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ILBS

New Delhi, National Capital Territory of Delhi, India

Site Status RECRUITING

Countries

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India

Central Contacts

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Niyatank Tyagi, MS

Role: CONTACT

01146300000

Facility Contacts

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Niyatank Tyagi, MS

Role: primary

01146300000

Other Identifiers

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ILBS- BILIARY TRACT CANCERS01

Identifier Type: -

Identifier Source: org_study_id

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