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Colon AdenocarcinomaNCT04003181

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

A study testing Antibiotics and Bile Acid Binder in people with Colon Adenocarcinoma and Diarrhea, run by University of Aarhus at 1 site in Denmark.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Colon Adenocarcinoma, Diarrhea
What is being tested?
Antibiotics and Bile Acid Binder
Could I receive a placebo?
No, everyone receives an active treatment
How many people
64 participants
Where
1 siteDenmark
Study dates
28 Sep 2017to 26 May 2021
Phase
Interventional
Are there results?
None posted in the registry

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

Who may be able to join

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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

Denmark1 site
  • Department of Hepatology and Gastroenterology, Aarhus University Hospital

    Aarhus, 8200

Other trials in Denmark

About this study

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.

Read more

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.

Read the detailed description

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.

Being tested
Antibiotics, Bile Acid Binder
Keywords
Bile acid malabsorption, Small intestinal bacterial overgrowth
Medical subject headings
Colonic Neoplasms, Diarrhea

What participants receive

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

  • AntibioticsDrug

    Ciprofloxacin or Rifaximin for 10 days.

  • Bile Acid BinderDrug

    Cholestyramine or Colesevelam lifelong.

Study groups in NCT04003181
Study groupRoleWhat they receive
Positive breath testActive comparatorPatients with a positive breath test are treated with antibiotics.
Receives: Drug: Antibiotics
Positive SeHCAT scanActive comparatorPatients with a positive SeHCAT scan are treated with a bile acid binder.
Receives: Drug: Bile Acid Binder
No interventionNo interventionPatients with a normal breath test and a normal SeHCAT scan receive no intervention.

What is being measured

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

  1. Change in SeHCAT retention after 7 days.

    The diagnosis of bile acid malabsorption in cases vs. controls is determined by a positive SeHCAT scan.

    Measured: The SeHCAT scan consists of a baseline measurement and a measurement after 7 days.

  2. Serum concentration of FGF19

    The serum value of FGF19 is measured by a blood sample.

    Measured: Through study completion, an average of 1 month.

Secondary outcomes (3)
  1. Presence of bacteria in the small bowel

    The diagnosis of bacterial overgrowth in the small bowel is determined by a breath test.

    Measured: Through study completion, an average of 1 month.

  2. Symptom relief after treatment with antibiotics or bile acid binder

    This will be estimated based on self-reported symptoms: A bowel function questionnaire with 30 questions regarding different aspects of bowel function. The patients should state if they have the symptoms daily, 1-6 times per week, less than once a week, or never.

    Measured: After 3 months.

  3. Quality of life after treatment with antibiotics or bile acid binder

    This will be estimated based on self-reported symptoms: the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire C30 version 3.0. A questionnaire with 30 individual questions summing up to form one global health status, five functional subscales, three symptom scales and six single items addressing different aspects of quality of life. The scales range from 0-100 with a higher score representing a higher level of functioning or a higher degree of symptoms, respectively.

    Measured: After 3 months.

Timeline

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

  1. First posted1 Jul 2019
  2. Study start28 Sep 2017
  3. Primary completion26 May 2021
  4. Study completion26 May 2021

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 N/A
Primary purpose
Diagnosis
Allocation
Non-randomised
Intervention model
Factorial
Masking
None (open label)
Enrolment
64 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04003181
Sponsor's protocol ID
1-10-72-301-16
Other IDs
1-16-02-137-17
Status last verified
Aug 2021
First submitted
23 Apr 2019
Last updated
8 Sep 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Antibiotics and Bile Acid Binder in people with Colon Adenocarcinoma and Diarrhea, run by University of Aarhus at 1 site in Denmark.

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 7 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: finished, as of the sponsor's last update on 8 Sep 2021. 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 Denmark. 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.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in SeHCAT retention after 7 days. (time frame: The SeHCAT scan consists of a baseline measurement and a measurement after 7 days.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 8 Sep 2021.

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