Skip to content

Clinical and Biological Characterization of Post COVID-19 Syndrome

Association of Symptoms, Clinical and Biochemical Characteristics in Post COVID-19 Syndrome: a Case-control Study

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05735782
Enrollment
75
Registered
2023-02-21
Start date
2023-02-16
Completion date
2023-06-30
Last updated
2023-02-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Long COVID

Keywords

Post-Acute COVID-19 Syndrome, Long COVID, Post-COVID Conditions, Post Acute COVID-19 Syndrome

Brief summary

The goal of this observational study is to describe the symptoms that persist for more than 12 weeks after the acute episode in participants who had COVID-19, and compare the functional, socioeconomic and occupational effects with a post-COVID-19 control group without persistent symptoms after the COVID-19 acute event. The main questions it aims to answer are: * What are the characteristics of symptoms that persist for more than 12 weeks in participants who have had COVID19 in the last year? * What are the health-related quality of life and psychosocial effects in participants with persistent symptoms of COVID-19, compared to a post-COVID-19 control group without persistent symptoms after the acute episode of COVID-19?

Detailed description

Two groups of cases and one group of controls will be included. A group of cases with persistent respiratory and/or cardiovascular symptoms (cardiorespiratory cases), and another group with persistent non-cardiorespiratory symptoms. Participants who report at least two symptoms of intensity greater than or equal to severe will be classified as non-cardiorespiratory cases. Controls will be participants with a history of confirmed SARS-CoV-2 infection, but without current or past persistent symptoms (ie, who resolved their symptoms during the acute episode or whose symptoms did not persist more than 4 weeks after onset). Controls will be matched to cases by sex, age (with a margin of up to ±5 years), and time since diagnosis of the COVID-19 episode considered as the origin of post-COVID-19 symptoms in the cases (with a margin of of ±30 days). The visit will include the application of the questionnaires for the evaluation of symptoms and quality of life associated with health, the clinical evaluation and the extraction of a blood sample. The extraction of a blood sample will allow biochemical determinations, the complete blood count and vitamin D level to be carried out. Subsequently, an aliquot will be reserved for mechanistic evaluation (inflammatory markers, immunological and microRNA studies).

Interventions

DIAGNOSTIC_TESTClinical, mental health and psychosocial profile of Post-COVID-19 syndrome

Evaluation of persistent symptoms of COVID-19 and its association with psychological, cognitive and social status in comparison to a healthy control group

DIAGNOSTIC_TESTDiagnostic performance of echocardiographic and biological markers in Post-COVID-19 syndrome

Determine the inflammatory, immune profile and ventricular function in post-COVID-19 participants compared to a control group

Sponsors

Hospital El Cruce
CollaboratorOTHER
National University of Cuyo
CollaboratorOTHER
Universidad Nacional de La Plata
CollaboratorOTHER
University of Buenos Aires
CollaboratorOTHER
Arturo Jauretche National University
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Two groups of cases and one group of controls will be included. A group of cases with persistent respiratory and/or cardiovascular symptoms (cardiorespiratory cases), and another group with persistent non-cardiorespiratory symptoms. For participation in the study, people who meet the following inclusion criteria and none of the

Exclusion criteria

will be considered. Inclusion Criteria: * Age equal to or greater than 18 years; * Documented SARS-CoV-2 infection by PCR or antigen test; * Ability to understand the objectives of the study; * Acceptance to participate in the study and willingness to sign the informed consent. * Permanent residence in Buenos Aires Metropolitan Area.

Design outcomes

Primary

MeasureTime frameDescription
Psychosocial, Cognitive and Health-related Quality Of Life association with symptoms Post COVID-19 syndromeMore than 12 weeks post- acute COVID-19 episodeAssessment of symptoms and health-related quality of life (ISARIC), fatigue (Chalder fatigue scale and SPHERE questionnaire) and psychosocial evaluation(PHQ-9 and GAD-7 questionnaires)

Secondary

MeasureTime frameDescription
IL-6, Anti-SARS-Cov-2 S-RBD IgG Antibodies and vitamin D levelsMore than 12 weeks post- acute COVID-19 episodeEvaluate inflammatory, immune and vitamin D profile in post-COVID-19

Other

MeasureTime frameDescription
Circulating miRNA expressionMore than 12 weeks post- acute COVID-19 episodeRNA-Seq in plasma of participants with persistent symptoms of COVID-19 and comparison

Countries

Argentina

Contacts

Primary ContactLaura Antonietti, MD, MHA
laurayantonietti@gmail.com+541158544004
Backup ContactJavier Mariani, MD
ja_mariani@hotmail.com

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026