Could a common arthritis drug help black patients with kidney disease?
NCT ID NCT05237388
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested whether baricitinib, a drug used for arthritis, can safely reduce high protein levels in the urine of African American adults with a specific genetic form of kidney disease (APOL1). Eight participants took the drug to see if it lowered their urine protein and protected kidney function. The goal was to find a new treatment option for this serious condition.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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8 people
The number who actually took part.
- Started
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Apr 2023
- Finished
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Apr 2026
- 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.
- Ages
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18 to 70 years
- 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults 18-70 years * High Risk APOL1 genotype (i.e., G1G1, G2G2, or G1G2) * FSGS diagnosed by kidney biopsy or clinically diagnosed HTN-CKD * UACR ≥300 mg/dL * Estimated glomerular filtration rate (eGFR) ≥26 ml/min/1.73 m2 at screening * Stable antihypertensive regimen for ≥ 1 month prior to enrolment * Able to provide written informed consent Exclusion Criteria: * Diabetes * HIV * Sickle cell disease. * Tip variant of FSGS. * Systolic BP \>180 mmHg or diastolic BP \>90 mmHg based on average of 3 measurements. * Active serious viral, bacterial, fungal or parasitic infection. * Symptomatic herpes zoster infection within 12 weeks prior to study entry. * Positive hepatitis B surface antigen during screening (could enroll after treatment). * Previous kidney transplant. * History of chronic liver disease with the most recent available aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \>1.5 times the ULN or the most recent available total bilirubin ≥1.5 times the ULN * Hemoglobin \<10 g/dL. * Absolute lymphocyte count (ALC)\<500cells/mm3 or absolute neutrophil count (ANC) \< 1000 cells/mm3. * Pregnant or nursing at time of enrollment * Prior or current treatment with JAK inhibitor. * Current use of potent immunosuppressants such as abatacept, adalimumab, anakinra, azathioprine, certolizumab, etanercept, golimumab, infliximab, probenecid, rituximab, ruxolitinib, sarilumab, tofacitinib, or tocilizumab. * High dose corticosteroids (\>10 mg per day of prednisone or equivalent) or an unstable dosing regimen of corticosteroids within 2 weeks of study entry or within 6 weeks of planned randomization.
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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
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Duke Research at Pickett Road
Durham, North Carolina, 27705, United States
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