NCT04786353

Brief Summary

During the COVID-19 pandemic children have been perceived as a group not being especially affected, with less being infected, low symptom burden and low mortality. A small proportion however develop life-threatening hyperinflammation (mis-c) and at least one Danish child has died from this condition. Since the fall of 2020 international awareness has been raised by parents reporting that their children experience gastrointestinal issues, chest pain, headaches, fatigue, joint/muscle pain, sore throat, dizziness, nausea and fever for months following COVID-19 infection. In this study the investigators aim to investigate the proportions of possible long covid in the 45.000 Danish children that has been tested positive for covid-19. The investigators know from the Danish Covid-19 surveillance data that 300 has been admitted to the hospital within the first 2 weeks after diagnosing. However, no knowledge about how many visits the participants have to the ER and GP compared to children without covid-19 as well as hospital admissions within the first year and medical prescriptions within the first year. This knowledge can give the investigators an indication of how affected these children are on the long term. Furthermore, data has been collected about the long-term symptoms in adults, but not children, and it now seems obvious that this data are needed to fully understand the disease and orchestra the relevant medical attention for children during the covid-19 pandemic.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
330,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2021

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

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

March 1, 2021

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 8, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

July 1, 2021

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2024

Completed
Last Updated

April 15, 2024

Status Verified

April 1, 2024

Enrollment Period

2.9 years

First QC Date

March 1, 2021

Last Update Submit

April 12, 2024

Conditions

Outcome Measures

Primary Outcomes (5)

  • Contacts to the general practitioner

    To determine the difference in number of contacts to the general practitioner, in children with and without COVID-19, an identification from the Danish COVID-19 database linked with the Danish Health Insurrance Register will occur.

    Up to 1 year after diagnosis with covid-19

  • Hospitalizations

    To determine the number of hospitalizations in children with and without COVID-19, an identification from the Danish COVID-19 database linked with the Danish National Patient Register will occur.

    Up to 1 year after diagnosis with covid-19

  • Diagnoses

    To determine which diagnoses the children with covid-19 are given compared to children without covid-19, an identification from the Danish COVID-19 database linked with the Danish National Patient Register will occur.

    Up to 1 year after diagnosis with covid-19

  • Prescribed drugs

    To determine which drugs the children with COVID-19 are given compared to children without covid-19, an identification from the Danish COVID-19 database linked with the Danish Medicines Registry will occur.

    Up to 1 year after diagnosis with covid-19

  • Long COVID symptoms

    Through self-reported (by child or parent) survey data long COVID symptoms will be evaluated among children with and without COVID-19

    Up to 1 year after diagnosis with covid-19

Study Arms (2)

COVID positive kids

Children with at least one positive SARS-CoV-2 test.

Other: LongCOVIDkidsDK

Controls

Children with no positive SARS-CoV-2 test.

Interventions

Exposure: To be identified as an exposure for the current study, children from 0-18 years with at least one positive SARS-CoV-2 test will be identified from COVID-19 data from January 2020 until the last updated version. To be able to identify the parents who will receive the questionnaires we will also need CPR-data on the children's parents.

COVID positive kids

Eligibility Criteria

Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Exposure: To be identified as an exposure for the current study, children from 0-18 years with at least one positive COVID-19 test will be identified from Covid-19 data from January 2020 until the last updated version. To be able to identify the parents who will receive the questionnaires we will also need CPR-data on the children's parents. Non-exposure: Children from 0-18 years without a positive COVID-19 test for the entire period of January 2020 until the last updated version will be identified from Covid-19 data. To be able to identify the parents who will receive the questionnaires we will need CPR-data on the parents.

You may qualify if:

  • must be included in the covid-19 monitoring database

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rigshospitalet, Copenhagen University Hospital

Copenhagen, Denmark

Location

Related Publications (3)

  • Bering L, Christensen AV, Birk NM, Thygesen LC, Bundgaard H, Benfield T, Nygaard U, Johannesen J, Nielsen SD, Berg SK. Risk of New-onset Type 1 Diabetes in Danish Children and Adolescents After SARS-CoV-2 Infection: A Nationwide, Matched Cohort Study. Pediatr Infect Dis J. 2023 Nov 1;42(11):999-1001. doi: 10.1097/INF.0000000000004063. Epub 2023 Aug 3.

  • Kikkenborg Berg S, Palm P, Nygaard U, Bundgaard H, Petersen MNS, Rosenkilde S, Thorsted AB, Ersboll AK, Thygesen LC, Nielsen SD, Vinggaard Christensen A. Long COVID symptoms in SARS-CoV-2-positive children aged 0-14 years and matched controls in Denmark (LongCOVIDKidsDK): a national, cross-sectional study. Lancet Child Adolesc Health. 2022 Sep;6(9):614-623. doi: 10.1016/S2352-4642(22)00154-7. Epub 2022 Jun 23.

  • Kikkenborg Berg S, Dam Nielsen S, Nygaard U, Bundgaard H, Palm P, Rotvig C, Vinggaard Christensen A. Long COVID symptoms in SARS-CoV-2-positive adolescents and matched controls (LongCOVIDKidsDK): a national, cross-sectional study. Lancet Child Adolesc Health. 2022 Apr;6(4):240-248. doi: 10.1016/S2352-4642(22)00004-9. Epub 2022 Feb 8.

MeSH Terms

Conditions

COVID-19

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Study Officials

  • Selina K Berg, PhD

    29190623

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

March 1, 2021

First Posted

March 8, 2021

Study Start

July 1, 2021

Primary Completion

June 1, 2024

Study Completion

June 1, 2024

Last Updated

April 15, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations