NCT04871932

Brief Summary

In recent years, single-cell high-throughput sequencing technology has developed rapidly and is widely used in research related to the immune system, breaking traditional cognition and gaining a new understanding of immune cell classification. In particular, the emerging single cell RNA sequencing (scRNA-seq) provides new ideas for the study of cell heterogeneity in multicellular organisms. Analyzing the changes in the expression profile of the cell transcriptome at the single-cell level can clearly show the changes in the trajectory of individual cells, reveal new cell types, and discover the potential functions of immune cells. Therefore, this study intends to recruit healthy adults and use multi-omics techniques such as single-cell sequencing to systematically classify the peripheral blood mononuclear cells of healthy adults to provide a basis for further disease-related research.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
7mo left

Started Feb 2021

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress90%
Feb 2021Dec 2026

Study Start

First participant enrolled

February 1, 2021

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

April 30, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

May 4, 2021

Completed
5.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 3, 2026

Expected
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

December 3, 2026

Last Updated

June 3, 2021

Status Verified

May 1, 2021

Enrollment Period

5.8 years

First QC Date

April 30, 2021

Last Update Submit

May 29, 2021

Conditions

Keywords

Cohort studyImmune SystemPBMCChina

Outcome Measures

Primary Outcomes (1)

  • Changes in classification of human peripheral blood mononuclear cells

    The primary endpoint will be the changes in classification of human peripheral blood mononuclear cells at single cell resolution.

    up to five years

Study Arms (4)

Recently unvaccinated group (Female)

This study intends to collect peripheral blood from healthy adults aged 18 to 50 years. Gender and vaccination may be independent potential factors that affect the changes in peripheral blood immune cells. This study collects basic clinical information from volunteers, and classifies the population based on gender and whether they have been vaccinated recently (including influenza vaccine, human papillomavirus \[HPV\] vaccine, and severe acute respiratory syndrome \[SARS\]-CoV-2 vaccines and others), aiming at systematically classify the peripheral blood mononuclear cells of healthy adults under different conditions and search for molecular markers related to different cell types. This group is Recently unvaccinated group (Female).

Recently unvaccinated group (Male)

This study intends to collect peripheral blood from healthy adults aged 18 to 50 years. Gender and vaccination may be independent potential factors that affect the changes in peripheral blood immune cells. This study collects basic clinical information from volunteers, and classifies the population based on gender and whether they have been vaccinated recently (including influenza vaccine, HPV vaccine, and SARS-CoV-2 vaccines and others), aiming at systematically classify the peripheral blood mononuclear cells of healthy adults under different conditions and search for molecular markers related to different cell types. This group is Recently unvaccinated group (Male).

Recently vaccinated group (Female)

This study intends to collect peripheral blood from healthy adults aged 18 to 50 years. Gender and vaccination may be independent potential factors that affect the changes in peripheral blood immune cells. This study collects basic clinical information from volunteers, and classifies the population based on gender and whether they have been vaccinated recently (including influenza vaccine, HPV vaccine, and SARS-CoV-2 vaccines and others), aiming at systematically classify the peripheral blood mononuclear cells of healthy adults under different conditions and search for molecular markers related to different cell types. This group is Recently vaccinated group (Female).

Biological: Recently Vaccination

Recently vaccinated group (Male)

This study intends to collect peripheral blood from healthy adults aged 18 to 50 years. Gender and vaccination may be independent potential factors that affect the changes in peripheral blood immune cells. This study collects basic clinical information from volunteers, and classifies the population based on gender and whether they have been vaccinated recently (including influenza vaccine, HPV vaccine, and SARS-CoV-2 vaccines and others), aiming at systematically classify the peripheral blood mononuclear cells of healthy adults under different conditions and search for molecular markers related to different cell types. This group is Recently vaccinated group (Male).

Biological: Recently Vaccination

Interventions

Recently vaccinated group (Female)Recently vaccinated group (Male)

Eligibility Criteria

Age18 Years - 50 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

Healthy adults with Han nationality

You may qualify if:

  • \. Age from 18 to 50 years; 2. No history of major diseases, no history of bacterial or viral infection in the past 3 months; 3. No recent history of surgery or trauma; 4 No history of smoking or alcoholism; 5. No immune system disease.

You may not qualify if:

  • \. Infectious diseases; 2. Tumor diseases; 3. Hematological diseases; 4. History of hypertension and diabetes; 5 Autoimmune diseases; 6 History of liver and kidney insufficiency; 7. History of previous cardiovascular diseases; 8. Pregnancy Or breast-feeding; 9. Past and current use of immunosuppressive drugs

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Cardiology, Ren Ji Hospital

Shanghai, China

RECRUITING

Related Publications (1)

  • Tong R, Luo L, Zhao Y, Sun M, Li R, Zhong J, Chen Y, Hu L, Li Z, Shi J, Lyu Y, Hu L, Guo X, Liu Q, Shuang T, Zhang C, Yuan A, Sun L, Zhang Z, Qian K, Chen L, Lin W, Chen AF, Wang F, Pu J. Characterizing the cellular and molecular variabilities of peripheral immune cells in healthy recipients of BBIBP-CorV inactivated SARS-CoV-2 vaccine by single-cell RNA sequencing. Emerg Microbes Infect. 2023 Dec;12(1):e2187245. doi: 10.1080/22221751.2023.2187245.

Biospecimen

Retention: SAMPLES WITH DNA

Peripheral venous blood samples from each donor were obtained to get the peripheral blood mononuclear cells (PBMCs)

Study Officials

  • Jun Pu, MD,PhD

    Cardiology, Ren Ji Hospital Shanghai, China

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of Cardiovascular Medicine

Study Record Dates

First Submitted

April 30, 2021

First Posted

May 4, 2021

Study Start

February 1, 2021

Primary Completion (Estimated)

November 3, 2026

Study Completion (Estimated)

December 3, 2026

Last Updated

June 3, 2021

Record last verified: 2021-05

Data Sharing

IPD Sharing
Will not share

Locations