CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 919,928 enrolled
Drug / intervention
Pre-pandemic time period (Jun 22, 2018 to March 12, 2020) +1 moreother
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT05813652
NCT05813652N/ACompleted

Relative Impacts on Preventative Primary Care--a Longitudinal Evaluation of COVID-19 (Phase 1: A Retrospective Cohort Analysis)

McMaster University·observational·Posted Apr 14, 2023·Updated Sep 25, 2025

In Brief

An observational study evaluating Pre-pandemic time period (Jun 22, 2018 to March 12, 2020) and Peri-pandemic time period (March 13, 2020 to December 3, 2021) for Diabetes Mellitus and 6 related conditions. Completed, enrolled 919,928 participants across 1 site.

Detailed Summary

The goal of this observational study is to describe the impacts of COVID-19 on primary care chronic condition management in Canada within various patient populations. This will be done by analyzing primary care electronic medial record (EMR) data from the Canadian Primary Care Sentinel Surveillance Network (CPCSSN) database, including data on primary care encounters, as well as various markers for chronic conditions. The research questions to be investigated are: 1a) What are the changes to the management of chronic conditions in primary care since the onset of the COVID-19 pandemic? 1b) How do these changes differ by age, health status, and socioeconomic status?

Study Details

Timeline

N/ACompletedFinished
2023202420252026
First PostedApr 14, 2023
Enrollment StartOct 5, 2022
Primary CompletionJan 31, 2025
Study CompletionMar 31, 2025
TodayJul 2, 2026
Enrollment to primary: 2.3 yearsPosted 3.2 years ago

Interventions

Pre-pandemic time period (Jun 22, 2018 to March 12, 2020)other

The primary exposure is the time period of the pandemic (March 13, 2020 to Dec 3, 2021), compared to pre-pandemic (Jun 22, 2018 to pandemic onset March 12, 2020)

Peri-pandemic time period (March 13, 2020 to December 3, 2021)other

The primary exposure is the time period of the pandemic (March 13, 2020 to Dec 3, 2021), compared to pre-pandemic (Jun 22, 2018 to pandemic onset March 12, 2020)