NCT03402451

Brief Summary

Korean Stroke Cohort for functioning and rehabilitation (KOSCO) is a large, multi-centre prospective cohort study for all acute first-ever stroke patients admitted to participating hospitals in nine distinct areas of Korea. This study is designed as a 10-year, longitudinal follow-up investigating the residual disabilities, activity limitations, and quality of life issues arising in patients suffering from first-ever stroke. The main objectives of this study are to identify the factors that influence residual disability and long-term quality of life. The secondary objectives of this study are to determine the risk of mortality and recurrent vascular events in patients with acute first-ever stroke. Investigators will investigate longitudinal health behaviors and patterns of healthcare utilization, including stroke rehabilitation care. Investigators will also investigate the long-term health status, mood, and quality of life in stroke patient caregivers. In addition, investigators will identify baseline and ongoing characteristics that are associated with secondary outcomes.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
7,858

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2012

Longer than P75 for all trials

Status
unknown

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2012

Completed
5.4 years until next milestone

First Submitted

Initial submission to the registry

January 1, 2018

Completed
17 days until next milestone

First Posted

Study publicly available on registry

January 18, 2018

Completed
4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2021

Completed
Last Updated

July 19, 2021

Status Verified

July 1, 2021

Enrollment Period

9.4 years

First QC Date

January 1, 2018

Last Update Submit

July 16, 2021

Conditions

Outcome Measures

Primary Outcomes (10)

  • Change in Korean modified Barthel Index

    measurement for activities of daily living

    3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in Euro Quality of Life-5 Dimensions

    measurement for quality of life

    3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in Functional Independence Measurement

    measurement for activities of daily living

    3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in Korean Mini-Mental State Examination

    measurement for cognitive function

    7 days, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in Korean Version of Frenchay Aphasia Screening Test

    measurement for language function

    7 days, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in modified Rankin Scale

    Measurement for disability. Range of total score 0 to 6. 0 is no disability at all and 6 is death. Therefore, greater value means worse functional status

    7 days, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in American Speech-Language-Hearing Association National Outcome Measurement System Swallowing Scale

    Measurement for swallowing function. Range of scale is 0 to 7, and greater value means better function. For example, 7 means no swallowing difficulty at all.

    7 days, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in Geriatric depression scale-short form

    measurement for depression. The scale is 0 to 15. 0 is normal whereas 15 indicates severe depression.

    3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in Fugl-Meyer Assessment

    measurement for motor function

    7 days, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

  • Change in Functional Ambulatory Category

    measurement for gait function

    7 days, 3 months, 6 months, 12 months, 18 months, 24 months, 36 months, 48 months, 60 months, 72 months, 84 months, 96 months, 108 months after stroke onset

Eligibility Criteria

Age19 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

All consecutive patients with an acute first-ever stroke, admitted to the representative hospitals in the nine distinct areas of Korea, will be asked to participate in the study. Participating study centres are Samsung Medical Center, Seoul; Severance Hospital, Seoul; Konkuk University Hospital, Seoul; Chungnam National University Hospital, Daejeon; Chonnam National University Hospital, Gwangu; Pusan National University Yangsan Hospital, Yangsan; Kyungpook National University Hospital, Deagu; Wonkwang University Hospital, Iksan; and Jeju National University Hospital, Jeju.

You may qualify if:

  • First-ever acute stroke (ischemic stroke or intracerebral hemorrhage) with corresponding lesion and/or evidence of acute arterial occlusion on CT (A)- or MRI/A-scan.
  • Age ≥ 19 years at onset of stroke.

You may not qualify if:

  • Transient ischemic attack.
  • History of stroke.
  • Traumatic intracerebral hemorrhage.
  • Not Korean.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (10)

  • Chang WH, Sohn MK, Lee J, Kim DY, Lee SG, Shin YI, Oh GJ, Lee YS, Joo MC, Han EY, Kim YH. Korean Stroke Cohort for functioning and rehabilitation (KOSCO): study rationale and protocol of a multi-centre prospective cohort study. BMC Neurol. 2015 Mar 25;15:42. doi: 10.1186/s12883-015-0293-5.

    PMID: 25886039BACKGROUND
  • Chang WH, Sohn MK, Lee J, Kim DY, Lee SG, Shin YI, Oh GJ, Lee YS, Joo MC, Han EY, Kang C, Kim YH. Predictors of functional level and quality of life at 6 months after a first-ever stroke: the KOSCO study. J Neurol. 2016 Jun;263(6):1166-77. doi: 10.1007/s00415-016-8119-y. Epub 2016 Apr 25.

  • Yoon JA, Kim DY, Sohn MK, Lee J, Lee SG, Lee YS, Han EY, Joo MC, Oh GJ, Han J, Park M, Park KP, Noh KH, Chang WH, Shin YI, Kim YH. Factors associated with improvement or decline in cognitive function after an ischemic stroke in Korea: the Korean stroke cohort for functioning and rehabilitation (KOSCO) study. BMC Neurol. 2017 Jan 10;17(1):9. doi: 10.1186/s12883-016-0780-3.

  • Chang WH, Sohn MK, Lee J, Kim DY, Lee SG, Shin YI, Oh GJ, Lee YS, Joo MC, Han EY, Kim MS, Jang SY, Kim JH, Kim YH. Long-term functional outcomes of patients with very mild stroke: does a NIHSS score of 0 mean no disability? An interim analysis of the KOSCO study. Disabil Rehabil. 2017 May;39(9):904-910. doi: 10.3109/09638288.2016.1170214. Epub 2016 May 20.

  • Chang WH, Sohn MK, Lee J, Kim DY, Lee SG, Shin YI, Oh GJ, Lee YS, Joo MC, Han EY, Kim JH, Kim YH. Return to work after stroke: The KOSCO Study. J Rehabil Med. 2016 Mar;48(3):273-9. doi: 10.2340/16501977-2053.

  • Jang SY, Sohn MK, Lee J, Kim DY, Lee SG, Shin YI, Oh GJ, Lee YS, Joo MC, Han EY, Chang WH, Lee A, Kim JH, Kim YH. Chronic Kidney Disease and Functional Outcomes 6 Months after Ischemic Stroke: A Prospective Multicenter Study. Neuroepidemiology. 2016;46(1):24-30. doi: 10.1159/000441281. Epub 2015 Nov 26.

  • Yoon JA, Kim DY, Sohn MK, Lee J, Lee SG, Lee YS, Han EY, Joo MC, Oh GJ, Han J, Lee SW, Park M, Chang WH, Shin YI, Kim YH. Effect of stress hyperglycemia and intensive rehabilitation therapy in non-diabetic hemorrhagic stroke: Korean Stroke Cohort for Functioning and Rehabilitation. Eur J Neurol. 2016 Nov;23(11):1658-1665. doi: 10.1111/ene.13101. Epub 2016 Jul 22.

  • Jang SY, Shin YI, Kim DY, Sohn MK, Lee J, Lee SG, Oh GJ, Lee YS, Joo MC, Han EY, Chang WH, Kang C, Kim YH. Effect of obesity on functional outcomes at 6 months post-stroke among elderly Koreans: a prospective multicentre study. BMJ Open. 2015 Dec 18;5(12):e008712. doi: 10.1136/bmjopen-2015-008712.

  • Shin M, Sohn MK, Lee J, Kim DY, Lee SG, Shin YI, Oh GJ, Lee YS, Joo MC, Han EY, Han J, Ahn J, Chang WH, Shin MA, Choi JY, Kang SH, Kim Y, Kim YH. Effect of Cognitive Reserve on Risk of Cognitive Impairment and Recovery After Stroke: The KOSCO Study. Stroke. 2020 Jan;51(1):99-107. doi: 10.1161/STROKEAHA.119.026829. Epub 2019 Dec 11.

  • Han J, Lee HI, Shin YI, Son JH, Kim SY, Kim DY, Sohn MK, Lee J, Lee SG, Oh GJ, Lee YS, Joo MC, Han EY, Chang WH, Kim YH. Factors influencing return to work after stroke: the Korean Stroke Cohort for Functioning and Rehabilitation (KOSCO) Study. BMJ Open. 2019 Jul 11;9(7):e028673. doi: 10.1136/bmjopen-2018-028673.

MeSH Terms

Conditions

Stroke

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Design

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

Study Record Dates

First Submitted

January 1, 2018

First Posted

January 18, 2018

Study Start

August 1, 2012

Primary Completion

December 31, 2021

Study Completion

December 31, 2021

Last Updated

July 19, 2021

Record last verified: 2021-07

Data Sharing

IPD Sharing
Will not share