Ignite Creation Date:
2025-12-24 @ 11:25 PM
Ignite Modification Date:
2026-01-05 @ 7:14 PM
Study NCT ID:
NCT04775056
Status:
WITHDRAWN
Last Update Posted:
2022-08-03
First Post:
2021-02-26
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
A Study to Evaluate Vaccines Against COVID-19 in the Real World
Sponsor:
Humanity & Health Medical Group Limited
Organization:
Study Overview
Official Title:
A Study to Describe the Safety, Tolerability, Immunogenicity, and Efficacy of Vaccines Against COVID-19 in the Real World
Status:
WITHDRAWN
Status Verified Date:
2022-08
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
No sponsor
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the resulting coronavirus disease 2019 (COVID-19) have afflicted tens of millions of people in a worldwide pandemic. Considering its high mortality and rapid spread, an effective vaccine is urgently needed to control this pandemic. Recently, mass vaccination campaigns using newly approved vaccines, ranging from conventional viral and protein-based vaccines to those that are more cutting edge, including DNA- and mRNA-based vaccines are beginning in many parts of the world. Randomized clinical trials of different vaccines reported efficacies for preventing COVID-19 in the range of 50% to 95%.
Although these randomized clinical trials are considered the "gold standard" for evaluating intervention effects, they have notable limitations of sample size and subgroup analysis, restrictive inclusion criteria, and a highly controlled setting that may not be replicated in a mass vaccine rollout.
The aim of this study is to evaluate the safety, tolerability, immunogenicity, and efficacy of different vaccines against COVID-19 under real-world practice conditions.
Although these randomized clinical trials are considered the "gold standard" for evaluating intervention effects, they have notable limitations of sample size and subgroup analysis, restrictive inclusion criteria, and a highly controlled setting that may not be replicated in a mass vaccine rollout.
The aim of this study is to evaluate the safety, tolerability, immunogenicity, and efficacy of different vaccines against COVID-19 under real-world practice conditions.
Detailed Description:
None
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: