Investigating Abrocitinib for Severe Fatigue in Long COVID

A Phase 2a Randomized, Dose Ranging, Double-Blind, 3-Arm Study to Investigate Orally Administered Abrocitinib Compared with Placebo in Non-Hospitalized Symptomatic Adult Participants with Severe Fatigue from Post COVID Condition

Phase 2 Interventional Beth Israel Deaconess Medical Center · NCT06597396

This study is testing if a medication called abrocitinib can help adults with Long COVID feel less severe fatigue compared to a placebo.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment90 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorBeth Israel Deaconess Medical Center Academic / other
Drugs / interventionsabrocitinib
Locations1 site (Boston, Massachusetts)
Trial IDNCT06597396 on ClinicalTrials.gov

What this trial studies

This phase 2a study aims to evaluate the efficacy of abrocitinib compared to a placebo in alleviating severe fatigue in non-hospitalized adults diagnosed with Post-COVID Condition (PCC), also known as Long COVID. Participants with a confirmed history of COVID-19 will be randomized to receive either abrocitinib at doses of 50 mg or 100 mg, or a placebo, taken daily for 12 weeks. The study includes six in-person visits over four months for medical assessments, specimen collection, and health evaluations to monitor treatment effects and overall health status.

Who should consider this trial

Good fit: Ideal candidates are adults with a confirmed history of COVID-19 who are experiencing severe fatigue as defined by the World Health Organization.

Not a fit: Patients with active infections, certain cardiac conditions, or those who have smoked tobacco in the past year may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new treatment option for patients suffering from debilitating fatigue due to Long COVID.

How similar studies have performed: While studies on Long COVID are emerging, this specific approach using abrocitinib is novel and has not been extensively tested in this context.

Eligibility criteria

Show full inclusion / exclusion criteria
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
* Current or former tobacco smoker within the last 12 months
* 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

Where this trial is running

Boston, Massachusetts

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Post-COVID ConditionFatigue SymptomLong COVIDPCCFatigue
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.