UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000052167
Receipt number R000059536
Scientific Title The Prognostic Impact of COVID-19 Incidence, the Effectiveness of SARS-CoV-2 Vaccine, and Factors that may Prevent Vaccination in Japanese Dialysis Patients
Date of disclosure of the study information 2023/09/25
Last modified on 2024/04/26 16:30:42

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Basic information

Public title

The Prognostic Impact of COVID-19 Incidence, the Effectiveness of SARS-CoV-2 Vaccine, and Factors that may Prevent Vaccination in Japanese Dialysis Patients

Acronym

The Impact of COVID-19 on Dialysis Patients and Factors Associated with its Vaccination.

Scientific Title

The Prognostic Impact of COVID-19 Incidence, the Effectiveness of SARS-CoV-2 Vaccine, and Factors that may Prevent Vaccination in Japanese Dialysis Patients

Scientific Title:Acronym

The Impact of COVID-19 on Dialysis Patients and Factors Associated with its Vaccination.

Region

Japan


Condition

Condition

End-stage kidney disease under hemodialysis therapy

Classification by specialty

Nephrology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Analysis of COVID-19 morbidity, cardiovascular event incidence, and mortality by vaccination against COVID-19

Basic objectives2

Others

Basic objectives -Others

The objective is to analyze COVID-19 morbidity, cardiovascular event incidence, and mortality due to vaccination against COVID-19, after adjustment by patient background factors. At the same time, we also aim to analyze cardiovascular event incidence and mortality due to COVID-19 morbidity and to investigate items related to factors associated with vaccination avoidance(factors that inhibit vaccination).

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes


COVID-19 morbidity and mortality after COVID-19 vaccination

Key secondary outcomes

Cardiovascular disease incidence after COVID-19 morbidity
Mortality after COVID-19 incidence
Cardiovascular disease incidence after COVID-19 vaccination


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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

In the database study, all patients included in the Japan Society for Dialysis Therapy statistical survey who are at least 18 years old, have been on dialysis for at least 3 months, and meet the criteria of 3 dialysis cycles per week.
In the questionnaire survey, patients who meet the following criteria: age 18 years or older, dialysis history of at least 3 months, and number of dialysis cycles per week of times per week, among the patients who are currently attending the study's collaborating institution.
In the interview survey, patients who were unvaccinated or who were unvaccinated but were vaccinated based on some trigger among the patients who participated in the questionnaire survey.

Key exclusion criteria

In any survey, if the applicant is under 18 years of age. In addition, if the person is determined to lack the capacity to give informed consent, for example, if he/she has a diagnosis of dementia.

Target sample size

365000


Research contact person

Name of lead principal investigator

1st name Yuka
Middle name
Last name Sugawara

Organization

The University of Tokyo Hospital

Division name

Division of Nephrology and Endocrinology

Zip code

1138655

Address

7-3-1, Hongo, Bunkyo-ku, Tokyo-to

TEL

03-3815-5411

Email

ysuga-tky@m.u-tokyo.ac.jp


Public contact

Name of contact person

1st name Yuka
Middle name
Last name Sugawara

Organization

The University of Tokyo Hospital

Division name

Division of Nephrology and Endocrinology

Zip code

1138655

Address

7-3-1, Hongo, Bunkyo-ku, Tokyo-to

TEL

03-3815-5411

Homepage URL


Email

jinnai.research.assist@gmail.com


Sponsor or person

Institute

The University of Tokyo Hospital

Institute

Department

Personal name



Funding Source

Organization

Ministry of Health, Labour and Welfare

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

Research Ethics Committee of the Faculty of Medicine of the University of Tokyo

Address

7-3-1, Hongo, Bunkyo-ku, Tokyo-to

Tel

03-5841-0818

Email

ethics@m.u-tokyo.ac.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



Other administrative information

Date of disclosure of the study information

2023 Year 09 Month 25 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

Enrolling by invitation

Date of protocol fixation

2023 Year 07 Month 19 Day

Date of IRB

2023 Year 07 Month 28 Day

Anticipated trial start date

2023 Year 10 Month 02 Day

Last follow-up date

2024 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Database Survey
The following analyses will be conducted using data from the Japan Society for Dialysis Therapy statistical survey.
A-1. Examination of the effect of COVID-19 vaccination on COVID-19 morbidity
A-2. Examination of the effect of COVID-19 vaccination on the incidence of cardiovascular events
A-3. Examination of the effect of COVID-19 vaccination on fatality rate
B-1. Study of the effect of COVID-19 on the incidence of cardiovascular events
B-2. study of the effect of COVID-19 on fatality rate

Questionnaire survey
After collecting more detailed information, we will conduct the same analysis as in A-1, A-2, and B-1 above. Reasons for vaccination and reasons for not being vaccinated will also be investigated, as well as factors related to vaccination (factors that inhibit vaccination).
Consent will be obtained for cases attending the study's collaborating institution. If they consent, they will be asked to complete an online questionnaire. The questionnaire does not contain any personal information, but the case numbers of the patients in the study will be entered. At the same time that the individual answers the questionnaire, the principal investigator/associate investigator/research collaborator (who has access to the medical records) will collect basic information, disease incidence information, vaccination status, and other information from the medical record, and enter it into a web-based response system on the web, such as google form.

Interview survey
For cases who were unvaccinated, or who were unvaccinated but were vaccinated for some reason, an interview survey will be conducted to determine the reasons why they were not vaccinated and the reasons why they were vaccinated. Documented consent will be newly obtained. Conduct an online interview survey of 30 minutes or less with the Principal Investigator or Research Supervisor and the case concerned.


Management information

Registered date

2023 Year 09 Month 11 Day

Last modified on

2024 Year 04 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000059536


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name