Could a pill ease long COVID fatigue? new trial hopes to find out
NCT ID NCT06597396
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 2a trial tests whether the drug abrocitinib can reduce severe fatigue in adults with Long COVID. About 46 people who were never hospitalized for COVID but now have long-term fatigue will take either 50 mg, 100 mg of abrocitinib, or a placebo daily for 12 weeks. Researchers will measure changes in fatigue and overall health using standard questionnaires.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- abrocitinib (a drug taken by mouth)
- What this could lead to
- If it works, this could point toward a treatment for severe fatigue in people with Long COVID.
- What could go wrong
- This is a small, early-phase trial with only 46 people. The drug may not improve fatigue more than placebo, and side effects are possible.
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.
- Phase
-
Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
-
46 people
The number who actually took part.
- Started
-
Dec 2024
- Expected to finish
-
Sep 2026
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.
- Ages
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18 to 65 years
- Sex
-
Anyone
- Healthy volunteers
-
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 COVID-19 infection * PCC diagnosis according to the WHO definition as occurring in individuals with a history of probable or confirmed SARS CoV-2 infection, usually 3 months from the onset of COVID-19 that lasts for at least 2 months and cannot be explained by an alternative diagnosis * Participants who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures * Capable of giving signed informed consent Exclusion Criteria: * Participants with acute and chronic infections, history of specific recurrent infections * Suspected or confirmed active SARS-CoV-2 infection within past 30 days * Some cardiac conditions * Any current tobacco smoker or person who has smoked tobacco products within 12 months of screening, or former tobacco smoker ≥ 50 years old * Known to be infected with Human Immunodeficiency Virus (HIV), Hepatitis B, or Hepatitis C, Herpes Virus, or Tuberculosis * History of immunodeficiency * Blood clotting conditions * Must meet general screening laboratory criteria * Allergy or other contraindication to any of the components of the study intervention * Known prior participation in this trial or other trial involving abrocitinib * Concurrent therapy with a JAK or TYK2 inhibitor * Other protocol criteria apply
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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
Locations
-
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215, United States
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