Long-term Effects of COVID-19: a Comparative Cohort Study
CoCo
1 other identifier
observational
180
0 countries
N/A
Brief Summary
This study is a longitudinal cohort study which investigates the effect of COVID-19 in ambulatory care. This study aims to assess the effect of COVID-19 beyond the acute phase, i.e. on long-term symptoms, respiratory and cardiovascular health, use of health services, and quality of life.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Aug 2021
Typical duration for all trials
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 16, 2021
CompletedFirst Posted
Study publicly available on registry
August 12, 2021
CompletedStudy Start
First participant enrolled
August 31, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 31, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
December 31, 2023
CompletedAugust 18, 2021
August 1, 2021
2 years
July 16, 2021
August 12, 2021
Conditions
Outcome Measures
Primary Outcomes (1)
Fatigue severity 6 months after diagnosis of COVID-19.
Data for this endpoint are collected with a questionnaire during the first study visit at 6 months. The severity of fatigue will be assessed using the Fatigue Severity Scale (FSS). This is a 9-item scale which measures the severity of fatigue and how it affects a person's activities and lifestyle. The score ranges from 7 to 63, with higher values indicating more fatigue.
6 months post-COVID
Secondary Outcomes (15)
Incidence of post-COVID symptoms
6 months, 9 months, 1 year, 1.5 year and 2 years post-COVID
Participants' quality of life
6 months, 9 months, 1 year, 1.5 year and 2 years post-COVID
Lung function (FEV1, FVC)
6 months and 1 year post-COVID
The degree of disability that breathlessness poses on day-to-day activities on a scale from 0 to 4 (mMRC scale)
6 months, 9 months, 1 year, 1.5 year and 2 years post-COVID
Gustatation
6 months, 9 months, 1 year, 1.5 year and 2 years post-COVID
- +10 more secondary outcomes
Study Arms (2)
COVID-19
exposed cohort with a diagnosis of COVID-19 in the last 6 months
no history of COVID-19
non-exposed cohort without a diagnosis of COVID-19. Tested for COVID-19 because of symptoms at the same time (+/- 1 month) as the exposed cohort.
Interventions
Participants will be followed up by means of online surveys and 2 study visits.
During two study visits, the lung function will be measured (FVC, FEV1)
During two study visits, the presence of arrhythmia will be explored.
Physical endurance is tested during 2 study visits.
Eligibility Criteria
2 cohorts of people who experienced an infection in the past 6 months of which 1 group had a proven covid-19 infection and 1 group definitely did not.
You may qualify if:
- Aged 18 years or older;
- Patient is community-dwelling;
- Participant or their proxy is willing and able to give informed consent for participation in this study;
- Participant is willing to comply with all study procedures.
- Aged 18 years or older;
- Tested because of suggestive symptoms with a rapid Ag test or PCR for SARS-CoV-2 at the same time (+/- 1 month) as the exposed cohort, of which the result was negative
- Patient is community-dwelling;
- Participant or their proxy is willing and able to give informed consent for participation in this study;
- Participant is willing to comply with all study procedures.
You may not qualify if:
- Participants eligible for the cohort with COVID-19 in the last 6 months must not meet any of the following criteria:
- Patients in palliative care;
- Patients for whom there is already someone from the same household participating;
- Judgement of the recruiting clinician deems participant ineligible.
- Participants eligible for the cohort without COVID-19 must not meet any of the following criteria:
- A positive test for a SARS-CoV-2 infection in the last 2 years;
- Patients in palliative care;
- Patients for whom there is already someone from the same household participating;
- Judgement of the recruiting clinician deems participant ineligible.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- KU Leuvenlead
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Central Study Contacts
Ann Van den Bruel, Prof MD
CONTACT
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate professor
Study Record Dates
First Submitted
July 16, 2021
First Posted
August 12, 2021
Study Start
August 31, 2021
Primary Completion
August 31, 2023
Study Completion
December 31, 2023
Last Updated
August 18, 2021
Record last verified: 2021-08