UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000043350
Receipt number R000049495
Scientific Title Elucidation of immune response behavior and factors by COVID-19 vaccination
Date of disclosure of the study information 2021/03/08
Last modified on 2023/07/20 23:42:32

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Basic information

Public title

Clinical trial of laboratory testing for immune response induced by COVID-19 vaccine

Acronym

COVID-19 vaccination/ immune response program

Scientific Title

Elucidation of immune response behavior and factors by COVID-19 vaccination

Scientific Title:Acronym

COVID-19 vaccination/ immune response program

Region

Japan


Condition

Condition

Coronavirus disease 2019 (COVID-19)

Classification by specialty

Infectious disease Laboratory medicine Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To clarify the behavior of clinical laboratory tests such as SARS-CoV-2 antibody titer, inflammatory cytokines, and cell-mediated immunity by COVID-19 vaccine, and to search for factors related to the magnitude and persistence of vaccine action by clinical laboratory tests.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

SARS-CoV-2 antibody titers (neutralizing antibody titers and nucleocapsid-antibody, spike-antibody by multiple reagents): humoral immunity

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Prevention

Type of intervention

Vaccine Maneuver

Interventions/Control_1

Since the booster effect of the 3rd vaccination was confirmed, the plan was changed to a total of 15 blood samplings, 6 times after the 3rd vaccination. In addition, follow-up will be conducted for 4 months after the 4th vaccination, and blood will be collected a total of 21 times. The term shall be two years.

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

70 years-old >=

Gender

Male and Female

Key inclusion criteria

1. Those who recruited by poster and applied
2. Those who have obtained consent for this research by signing the consent form by the person himself / herself.

Key exclusion criteria

1.Those who cannot tolerate multiple blood draws due to thin blood vessels.
2.Those who have difficulty collecting blood and have strong pain.
3.Those with a history of vasovagal reflex.
4.Those who have already been vaccinated with COVID-19 vaccine.

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Masato
Middle name
Last name Maekawa

Organization

Hamamatsu University School of Medicine

Division name

Faculty of Medicine

Zip code

431-3192

Address

1-20-1 Handayama, Higashi-ku, Hamamatsu city, Shizuoka, Japan

TEL

053-435-2721

Email

mmaekawa@hama-med.ac.jp


Public contact

Name of contact person

1st name Keita
Middle name
Last name Yamashita

Organization

Hamamatsu University School of Medicine

Division name

Department of Laboratory Medicine/Clinical Laboratory

Zip code

431-3192

Address

1-20-1 Handayama, Higashi-ku, Hamamatsu city, Shizuoka, Japan

TEL

053-435-2723

Homepage URL


Email

keitay@hama-med.ac.jp


Sponsor or person

Institute

Hamamatsu University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Hamamatsu University School of Medicine

Organization

Division

Category of Funding Organization

Government offices of other countries

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Hamamatsu University School of Medicine Institutional Review Board

Address

1-20-1 Handayama, Higashi-ku, Hamamatsu city, Shizuoka, Japan

Tel

053-435-2111

Email

rinri@hama-med.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

2021 Year 03 Month 08 Day


Related information

URL releasing protocol


Publication of results

Partially published


Result

URL related to results and publications

https://www.mdpi.com/2076-393X/10/7/1050

Number of participants that the trial has enrolled

51

Results

Interim analysis results up to 2 weeks after the third vaccination (peak phase) were published in Vaccines 2022, 10(7), 1050; https://doi.org/10.3390/vaccines10071050'.

We have clarified the behavior of long-term humoral and cell-mediated immunity against SARS-CoV-2 and characterized the antibody assay system. We are currently analyzing the behavior in the third/fourth vaccination (booster).

Results date posted

2021 Year 09 Month 10 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results

2022 Year 06 Month 30 Day

Baseline Characteristics


Participant flow


Adverse events

No adverse events occurred. No participants were infected with the new coronavirus until the third vaccination.
After the fourth vaccination, 29 study participants continued.

Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Main results already published

Date of protocol fixation

2021 Year 03 Month 15 Day

Date of IRB

2021 Year 03 Month 08 Day

Anticipated trial start date

2021 Year 03 Month 15 Day

Last follow-up date

2024 Year 03 Month 31 Day

Date of closure to data entry

2024 Year 03 Month 31 Day

Date trial data considered complete

2024 Year 03 Month 31 Day

Date analysis concluded

2024 Year 03 Month 31 Day


Other

Other related information



Management information

Registered date

2021 Year 02 Month 17 Day

Last modified on

2023 Year 07 Month 20 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000049495


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name