UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000047779
Receipt number R000054469
Scientific Title Long-term symptoms, complications and social outcomes after COVID-19: a retrospective cohort study using a self-administered questionnaire
Date of disclosure of the study information 2022/06/01
Last modified on 2025/04/07 12:17:08

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Basic information

Public title

COVID-19 Recovery Study II

Acronym

CORES II

Scientific Title

Long-term symptoms, complications and social outcomes after COVID-19: a retrospective cohort study using a self-administered questionnaire

Scientific Title:Acronym

CORES II

Region

Japan


Condition

Condition

COVID-19

Classification by specialty

Medicine in general Cardiology Pneumology
Psychosomatic Internal Medicine Infectious disease Emergency medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate long-term symptoms and complications of patients hospitalized and discharged alive after a diagnosis of COVID-19

Basic objectives2

Others

Basic objectives -Others

Presence of long-term symptoms and complications

Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Presence of long-term symptoms and complications at one year and two years after diagnosis

Key secondary outcomes

Physical and mental health status, socioeconomic status, and quality of life at one year and two years after diagnosis


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) Persons diagnosed with COVID-19 at a medical institution, etc.

(2) Persons 20 years of age or older who were hospitalized and discharged alive from a cooperative research institute in Japan between April and September 2021 for the treatment of 1 above.

Key exclusion criteria

(1) Persons deemed unfit by the physician

(e.g., patients who have difficulty communicating in Japanese or cooperating in surveys)

Target sample size

1000


Research contact person

Name of lead principal investigator

1st name Hiroyasu
Middle name
Last name Iso

Organization

Japan Institute for Health Security

Division name

Institute for Global health Policy Research, Bureau of Global Health Cooperation

Zip code

162-8655

Address

1-21-1, Toyama Shinjuku-ku, Tokyo, Japan

TEL

03-3202-7181

Email

iso.h@jihs.go.jp


Public contact

Name of contact person

1st name Mariko
Middle name
Last name Hosozawa

Organization

Japan Institute for Health Security

Division name

Institute for Global health Policy Research, Bureau of Global Health Cooperation

Zip code

162-8655

Address

1-21-1, Toyama Shinjuku-ku, Tokyo, Japan

TEL

03-3202-7181

Homepage URL


Email

hosozawa.m@jihs.go.jp


Sponsor or person

Institute

Japan Institute for Health Security

Institute

Department

Personal name



Funding Source

Organization

Ministry of Health, Labour and Welfare (Japan)

Organization

Division

Category of Funding Organization

Japanese Governmental office

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

IRB, Japan Institute for Health Security

Address

1-21-1, Toyama Shinjuku-ku, Tokyo, Japan

Tel

03-3202-7181

Email

rinrijm@jihs.go.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions

日立総合病院(茨城県)、信州大学医学部附属病院(長野県)、千葉大学医学部附属病院(千葉県)、那覇市立病院(沖縄県)、琉球大学病院(沖縄県)、広島大学病院高度救命救急センター(広島県)、大阪医科薬科大学(大阪府)、横浜市立大学付属市民総合医療センター(神奈川県)、関西医科大学総合医療センター(大阪府)、大阪急性期・総合医療センター(大阪府)、国立病院機構北海道医療センター(北海道)、独立行政法人地域医療推進機構北海道病院(北海道)、聖マリアンナ医科大学(神奈川県)、聖マリアンナ医科大学横浜市西部病院(神奈川県)、横浜市立大学附属病院(神奈川県)、公立豊岡病院組合立豊岡病院(兵庫県)


Other administrative information

Date of disclosure of the study information

2022 Year 06 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

No longer recruiting

Date of protocol fixation

2022 Year 04 Month 11 Day

Date of IRB

2022 Year 04 Month 26 Day

Anticipated trial start date

2022 Year 06 Month 01 Day

Last follow-up date

2023 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This is a prospective cohort study of patients hospitalized and discharged alive from collaborative research institutes with COVID-19 between April and September 2021. A self-administered questionnaire will be used to examine long-term symptoms and complications associated with COVID-19, physical and mental health status, and socioeconomic status.


Management information

Registered date

2022 Year 05 Month 17 Day

Last modified on

2025 Year 04 Month 07 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000054469