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Ulcerative ColitisNCT01091558

Study of Effects of L-Arginine in Colitis and Colon Cancer

An observational study of Ulcerative Colitis and Colon Cancer, run by Vanderbilt University Medical Center at 1 site in United States.

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

The purpose of this study is to look at the importance of L-Arginine in the digestive tract. L-Arginine is an amino acid and is important in making proteins within the cell. The evaluation of colon tissue, blood, urine, diet, health history, and symptoms will help us learn more about L-Arginine and ulcerative colitis. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Ulcerative Colitis, Colon Cancer
How many people
204 participants
Where
1 siteUnited States
Study dates
Sep 2009to Dec 2011
Phase
Observational
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
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Any patient scheduled to have a colonoscopy as part of medical care for either ulcerative colitis or as a routine screening colonoscopy.

Who may be able to join

  • 18 years of age or older
  • Colonoscopy for one of the following: clinical indications, disease assessment, or surveillance for dysplasia (as in ulcerative colitis)
  • Screening for cancer

Who cannot join

  • refusal to participate
  • age less than 18 years at time of colonoscopy

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Vanderbilt Hospital

    Nashville, Tennessee, 37232

Other trials in United States

About this study

Official title: Immunomodulary Effects of Arginine Supplementation in Colitis and Colon Cancer

The purpose of this study is to look at the importance of L-Arginine in the digestive tract. L-Arginine is an amino acid and is important in making proteins within the cell.

The evaluation of colon tissue, blood, urine, diet, health history, and symptoms will help us learn more about L-Arginine and ulcerative colitis. The investigators believe these studies will provide new insights into the treatment for Inflammatory Bowel Disease (ulcerative colitis) and nutritional needs. The investigators plan to enroll 200 participants in this study over the next two years.

Read the detailed description

Amino acids are being measured in colon tissues and in serum by high performance liquid chromotography (HPLC). Cytokines and chemokines are being measured in colon tissues and in serum by Luminex assay. Cytokines and chemokines are also being measured in colon tissues by real-time polymerase chain reaction (PCR) analysis of mRNA expression.

Keywords
ulcerative colitis, colon cancer, endoscopy, screening
Medical subject headings
Colitis, Ulcerative, Colonic Neoplasms

What participants receive

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

Study groups in NCT01091558
Study groupRoleWhat they receive
ColonoscopyHealthy volunteer who is having a screening colonoscopy
Ulcerative ColitisPatients with confirmed ulcerative colitis who are scheduled for endoscopy for medical reasons.

What is being measured

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

  1. L-Arginine (L-Arg) availability in ulcerative colitis (UC) patients and normal control subjects, and correlate with disease activity

    Measured: 24 months

Secondary outcomes (1)
  1. L-Arg intake in the diet of UC patients and control subjects

    Measured: 24 months

Timeline

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

  1. First posted24 Mar 2010 (estimated)
  2. Study startSep 2009
  3. Primary completionDec 2011
  4. Study completionDec 2011

Resources

More details

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

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
204 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01091558
Sponsor's protocol ID
090943
Other IDs
3R01AT004821-02S1
Status last verified
Mar 2017
First submitted
18 Mar 2010
Last updated
31 Mar 2017
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Publications

  • Gobert AP, Latour YL, Asim M, Barry DP, Allaman MM, Finley JL, Smith TM, McNamara KM, Singh K, Sierra JC, Delgado AG, Luis PB, Schneider C, Washington MK, Piazuelo MB, Zhao S, Coburn LA, Wilson KT. Protective Role of Spermidine in Colitis and Colon Carcinogenesis. Gastroenterology. 2022 Mar;162(3):813-827.e8. doi: 10.1053/j.gastro.2021.11.005. Epub 2021 Nov 10.

    PubMed 34767785

Questions about this trial

What is this clinical trial studying?

An observational study of Ulcerative Colitis and Colon Cancer, run by Vanderbilt University Medical Center at 1 site in United States.

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 2 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 31 Mar 2017. 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 United States. 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?

L-Arginine (L-Arg) availability in ulcerative colitis (UC) patients and normal control subjects, and correlate with disease activity (time frame: 24 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 NCT01091558, 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 31 Mar 2017.

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