New registry aims to unravel mysteries of long COVID
NCT ID NCT07417176
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This observational study will enroll 200 people in Navarre who have had COVID-19 and still have symptoms lasting more than 3 months. Researchers will collect information on demographics, health history, and ongoing symptoms to better understand long COVID. The goal is to describe the condition and identify common complications, but no treatment is being tested.
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 registry could help identify common long COVID symptoms and risk factors, guiding future research and care.
- What could go wrong
- This is an observational study, not a treatment trial. It collects data at a single visit and cannot prove causes or test therapies.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2021
- Expected to finish
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Mar 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients seen in the Internal Medicine outpatient clinic who have been referred by primary care teams or other medical services.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * History of confirmed SARS-CoV-2 infection * Presentation of symptoms that have persisted for more than 3 months after SARS-CoV-2 infection * The patient reports any of the symptoms listed in the clinical assessment questionnaire or checklist. Exclusion Criteria: * The symptom(s) referred to already existed prior to acute SARS-CoV-2 infection.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Hospital Universitario de Navarra
RECRUITINGPamplona, Navarre, 31008, Spain
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can magnetic pulses to the brain reverse Long-COVID smell loss, tinnitus, and fatigue?
- Can our genes and gut explain long COVID?
- Brain fog after COVID: can a mental workout restore focus?
- Fish oil and Body's own healing molecules could lift long COVID depression
- Zapping the brain to clear long COVID fog: a new hope?
- Can tailored exercise help tame racing heart and fatigue after COVID?