Long COVID mystery: study follows mild cases for a year
NCT ID NCT04813731
First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time
Summary
This completed study followed 300 adults who had mild to moderate COVID-19 but were not hospitalized. Researchers tracked their symptoms for up to a year to see how long it took to fully recover and how lingering symptoms affected daily life. The goal was to better understand long COVID in primary care patients.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this study could help doctors better predict and manage long COVID in patients who had mild or moderate infections.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove what causes lingering symptoms or how to fix them.
Disclaimer
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This is a summary of
the original study
.
Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Locations
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Balan Medfam SRL
Cluj-Napoca, Romania
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Center for General Practice at Aalborg University
Aalborg, Denmark
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Centre for General Practice, Department of Family Medicine & Population Health (FAMPOP), Faculty of Medicine and Health Sciences, University of Antwerp
Antwerp, Belgium
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Covid-19 primary care special unit Sassuolo, Azienda Unità Sanitaria locale di Modena, Modena, Italy
Modena, Italy
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Département de Santé Publique, Université Côte d'Azur, Centre Hospitalier Universitaire de Nice, Nice, France
Nice, France
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Institut für Allgemeinmedizin Universitätsklinikum Würzburg Josef-Schneider-Str. 2/D7 97080 Würzburg
Würzburg, Germany
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Julius Center, University Medical Center Utrecht
Utrecht, Netherlands
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Kärna Primary Health Care Centre
Linköping, Sweden
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Medical University of Lodz, Lodz
Lodz, Poland
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R. Lugar Center for Public Health Research
Tbilisi, Georgia
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School of Medicine, National University of Ireland
Galway, Ireland
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Wetterhälsan Primary Health Care Centre
Jönköping, Sweden
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the Academic Centre for General Practice (ACHG), Department of Public Health and Primary Care, KU Leuven
Leuven, Belgium