Why do some teens stay fatigued after mono? new study aims to find out
NCT ID NCT07394855
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at why some teenagers and young adults feel tired for months after getting Epstein-Barr virus (the virus that causes mono). Researchers will follow 150 infected people and 150 healthy people for six months, using brain scans, immune tests, and questionnaires. The goal is to learn how the brain, immune system, and nervous system interact to cause persistent fatigue. No treatments are being tested.
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
-
About 300 people
The number the study aims to enrol. It can still change while the study runs.
- Started
-
Apr 2026
- Expected to finish
-
Dec 2027
An estimate. End dates often move.
- Lead sponsor
-
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
The population served by the South-Eastern Norway Regional Health Authority (approximately 3.1M)
- Ages
-
16 to 39 years
- Sex
-
Anyone
- Healthy volunteers
-
Accepted
You do not need to have the condition being studied to take part.
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 (pertaining to EBV group only): * EBV infection, laboratory confirmed. * First symptoms \> 3 and \< 6 weeks away Exclusion Criteria (pertaining to both groups) * Co-morbidity, including mental illness (seasonal allergy/asthma is accepted if no signs/symptoms) * Usage of pharmaceuticals (hormonal contraception and paracetamol/ibuprofen is accepted) * Concurrent demanding life event causing fatigue. * Disability impacting on daily living. * Regular smoking * Usage of illicit drugs * Pregnancy
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Epstein-Barr virus infection are added.
Genom att skicka in godkänner du våra Användarvillkor
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.
-
The places running it
1 site. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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
-
Akershus University Hospital
RECRUITINGLørenskog, N-1478, Norway
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Banked t cells target four viruses at once in children after transplant
- Can cord blood t cells be trained to stop viral infections after transplant?
- Can a nanoparticle vaccine stop the virus behind mono and some cancers?
- Suicide Gene-Equipped t cells aim to make stem cell transplants safer
- Can 'Supercharged' donor cells beat viruses that drugs Can't?
- Donor immune cells take on tough viruses in transplant patients