The Pathogenesis of Chronic Diarrhoea After Treatment for Cancer in Cecum and the Ascending Colon

NCT ID: NCT04003181

Last Updated: 2021-09-08

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

COMPLETED

Clinical Phase

NA

Total Enrollment

64 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-09-28

Study Completion Date

2021-05-26

Brief Summary

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Many patients suffer from chronic diarrhoea after surgical treatment for cancer in the right side of the colon.

The investigators' main hypothesis is that colon cancer patients with chronic diarrhoea have a higher risk of bile acid malabsorption compared with colon cancer patients without diarrhoea.

The investigators also expect that a part of the cases of bile acid malabsorption is caused by underlying bacterial overgrowth in the small bowel.

The investigators assume that patients with severe bile acid malabsorption have a lower value of FGF19 in the blood compared to patients with moderate or none bile acid malabsorption.

Furthermore, it is assumed that patients with chronic diarrhoea and documented bile acid malabsorption after surgical treatment for right-sided colon cancer will get improved bowel function when treated with a bile acid binder, or antibiotics in case of bacterial overgrowth.

Detailed Description

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Patients with chronic diarrhoea after surgical treatment of right-sided colon cancer will be compared to patients without diarrhoea after right-sided colon cancer treatment.

All patients will be asked to answer a short questionnaire regarding bowel function, and they will all have standard blood tests taken to exclude non-cancer related causes of diarrhoea. Besides these standard tests, the value of FGF19 will be measured in a blood sample from the fasting participants. All participants will undergo SeHCAT scan to determine the presence of bile acid malabsorption among right-sided colon cancer patients with and without diarrhoea. In addition, a glucose breath test will be performed to examine, if the patients have small intestinal bacterial overgrowth.

Patients with a positive glucose breath test, and thus bacterial overgrowth, will be treated with antibiotics, followed by another SeHCAT scan, glucose breath test, and measurement of gastrointestinal transit time. In addition, they will be asked to complete the questionnaire regarding bowel function again. All cases with an abnormal SeHCAT scan will be treated with a bile acid binder, and the patients will be asked to complete the questionnaire one more time, and the GITT measurement will be repeated.

Conditions

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Colon Adenocarcinoma Diarrhea

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Positive breath test

Patients with a positive breath test are treated with antibiotics.

Group Type ACTIVE_COMPARATOR

Antibiotics

Intervention Type DRUG

Ciprofloxacin or Rifaximin for 10 days.

Positive SeHCAT scan

Patients with a positive SeHCAT scan are treated with a bile acid binder.

Group Type ACTIVE_COMPARATOR

Bile Acid Binder

Intervention Type DRUG

Cholestyramine or Colesevelam lifelong.

No intervention

Patients with a normal breath test and a normal SeHCAT scan receive no intervention.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Antibiotics

Ciprofloxacin or Rifaximin for 10 days.

Intervention Type DRUG

Bile Acid Binder

Cholestyramine or Colesevelam lifelong.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Primary adenocarcinoma in cecum or the ascending colon
* Right-sided hemicolectomy
* Understanding, speaking and reading Danish

Exclusion Criteria

* Previous major gastrointestinal, urological or gynaecological surgery or oncological treatment
* Radiation therapy
* Recurrence of colon cancer
* Metastasis
* Permanent stoma
* Pregnancy
* Reduced cognitive level that makes it plausible that the patient do not understand the study or is not capable of participation
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Danish Cancer Society

OTHER

Sponsor Role collaborator

GE Healthcare

INDUSTRY

Sponsor Role collaborator

University of Aarhus

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Søren Laurberg, MD DMSc

Role: STUDY_CHAIR

Department of Surgery, Aarhus University Hospital

Locations

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Department of Hepatology and Gastroenterology, Aarhus University Hospital

Aarhus, , Denmark

Site Status

Countries

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Denmark

Other Identifiers

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1-16-02-137-17

Identifier Type: OTHER

Identifier Source: secondary_id

1-10-72-301-16

Identifier Type: -

Identifier Source: org_study_id

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