NCT04976894

Brief Summary

Korean Stroke Cohort for functioning and rehabilitation (KOSCO)-II 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 as previous similar stroke cohort with KOSCO. The main objectives of this study are to identify and compare the factors that influence residual disability and long-term quality of life in first-ever acute stroke patients with KOSCO. The secondary objectives of this study are to determine and compare the risk of mortality and recurrent vascular events in first-ever acute stroke patients with KOSCO. 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

75
On Track

Trial Health Score

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

Enrollment
2,431

participants targeted

Target at P75+ for all trials

Timeline
57mo left

Started Jan 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

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 Progress58%
Jan 2020Dec 2030

Study Start

First participant enrolled

January 1, 2020

Completed
1.5 years until next milestone

First Submitted

Initial submission to the registry

July 16, 2021

Completed
10 days until next milestone

First Posted

Study publicly available on registry

July 26, 2021

Completed
9.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2030

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2030

Last Updated

April 28, 2026

Status Verified

April 1, 2026

Enrollment Period

11 years

First QC Date

July 16, 2021

Last Update Submit

April 23, 2026

Conditions

Keywords

StrokeDisabilityFunctionRehabilitationBurden

Outcome Measures

Primary Outcomes (9)

  • Change in Korean modified Barthel Index

    measurement for activities of daily living Minimum: 0, Maximum: 100 Higher scores means a better.

    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

    measurement for quality of life Minimum: 0, Maximum: 1 Higher scores means a better.

    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 Minimum: 0, Maximum: 126 Higher scores means a better.

    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 language function Minimum: 0, Maximum: 30 Higher scores means a better.

    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 Minimum: 0, Maximum: 30 Higher scores means a better.

    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. Minimum: 0, Maximum: 15. Lower scores means a better.

    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 Minimum: 0, Maximum: 5 Higher scores means a better.

    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

Interventions

openOTHER

open

Eligibility Criteria

Age19 Years+
Sexall
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

Study Sites (1)

Samsung Medical Center

Seoul, 135-710, South Korea

Location

MeSH Terms

Conditions

Stroke

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Officials

  • Yun-Hee Kim, MD.,PhD.

    Samsung Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
10 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

July 16, 2021

First Posted

July 26, 2021

Study Start

January 1, 2020

Primary Completion (Estimated)

December 31, 2030

Study Completion (Estimated)

December 31, 2030

Last Updated

April 28, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations