NCT02516683

Brief Summary

Background: The incidence of postinfectious irritable bowel syndrome (PI-IBS) was reported to be in the range of 5-30%, but limited number of long-term follow-up results. Objective: To investigate the long term clinical course of PI-IBS after Shigellosis. Setting: A Shigellosis outbreak in a tertiary referral hospital with about 2,000 employees in Korea at 2001. Patients: A Shigella-exposed cohort of 124 hospital employees who had been infected by Shigella sonnei due to contaminated food in the employee-cafeteria in Gangnam Severance Hospital, Seoul, Korea, at December 2001. A control cohort of age and sex-matched, non-infected 105 contemporary hospital employees. Measurements: Questionnaire survey for bowel symptoms at 1, 3, 5, 8 and 10 years after outbreak.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
229

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Dec 2001

Longer than P75 for all trials

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2001

Completed
10 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2011

Completed
3.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2015

Completed
1 month until next milestone

First Submitted

Initial submission to the registry

August 4, 2015

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 6, 2015

Completed
Last Updated

August 6, 2015

Status Verified

August 1, 2015

Enrollment Period

10 years

First QC Date

August 4, 2015

Last Update Submit

August 5, 2015

Conditions

Outcome Measures

Primary Outcomes (1)

  • Questionnaire survey for bowel symptoms

    up to 10 years after outbreak

Study Arms (2)

Shigella sonnei-exposed cohort

Shigella sonnei infection - A Shigella-exposed cohort of 124 hospital employees who had been infected by Shigella sonnei due to contaminated food in the employee-cafeteria in Gangnam Severance Hospital, Seoul, Korea, at December 2001.

Other: Shigella sonnei infection

control cohort

A control cohort of age and sex-matched, non-infected 105 contemporary hospital employees.

Interventions

A Shigella-exposed cohort of 124 hospital employees who had been infected by Shigella sonnei due to contaminated food in the employee-cafeteria in Gangnam Severance Hospital, Seoul, Korea, at December 2001.

Shigella sonnei-exposed cohort

Eligibility Criteria

Age20 Years - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

a Shigellosis outbreak took place at Gangnam Severance Hospital in Seoul, Korea, due to the consumption of contaminated food in the hospital cafeteria for employees. The causative pathogen was Shigella sonnei, and a total of 181 patients were diagnosed and treated for Shigellosis. After the termination of Shigellosis outbreak, we could establish a cohort of the Shigella-exposed group for serial surveys. The initially established Shigella-exposed cohort was comprised of 143 subjects, and we also could recruited the control group as age- and sex-matched healthy volunteers who were also hospital employees at same period and had not been infected, nor exposed to causal food.

You may qualify if:

  • Shigella sonnei infected patients

You may not qualify if:

  • refused to participate in these surveys
  • pregnant or had history of abdominal surgery or chronic organic gastrointestinal disorder

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Officials

  • Young Hoon Youn, MD, PhD

    Yonsei University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 4, 2015

First Posted

August 6, 2015

Study Start

December 1, 2001

Primary Completion

December 1, 2011

Study Completion

July 1, 2015

Last Updated

August 6, 2015

Record last verified: 2015-08