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Could a pill ease long COVID fatigue? new trial hopes to find out

NCT ID NCT06597396

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

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

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

More trials for these conditions

Other studies related to the condition(s) this trial covers.