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The Efficacy of Everolimus With Reduced-dose Tacrolimus Versus Reduced-dose Tacrolimus and Leflunomide in Treatment of BK Virus Infection in Kidney Transplantation Recipient

The Efficacy of Everolimus With Reduced-dose Tacrolimus Versus Reduced-dose Tacrolimus and Leflunomide in Treatment of BK Virus Infection in Kidney Transplantation Recipient

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04542733
Acronym
ELF
Enrollment
50
Registered
2020-09-09
Start date
2023-06-15
Completion date
2028-07-01
Last updated
2026-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

BK Virus Infection, Kidney Transplant Infection

Keywords

Kidney Transplantation, mTOR inhibitor, Leflunomide, BK virus

Brief summary

BK virus infection is one of the causes of renal allograft loss in the current era. Reduction of immunsuppression is the only intervention that prooved to be effective in treating of BK virus in kidney transplant recipient. However, there are evidences from retrospective and prospective studies showed that leflunomide and mTOR inhibitor such as everolimus or sirolimus have positive outcomes in treatment of BK virus in kidney tranplant recipient. The investigators conduct the RCT to compare the efficacy of leflunomide and mTOR inhibitor everolimus, in treatment of BK virus infected patients who do not respond to immunosuppression reduction.

Interventions

DRUGEverolimus

Everolimus will be given with tacrolimus.

DRUGreduced dose tacrolimus and Leflunomide

Reduced dose tacrolimus will be given with leflunomide

Sponsors

King Chulalongkorn Memorial Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

All patients met inclusion criteria will be randomized after BK VL not respond to mycophenolic acid and tacrolimus reduction as a run-in phase for 1 month. The intervention arms include everolimus + reduced dose tacrolimus and leflunomide + reduced dose tacrolimus.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Kidney transplant recipients at King Chulalongkorn Memorial Hospital * age \>= 18 years * persistent BK viremia \>1000 copies/mL at least 2 times in 3 weeks or single time \> 10000 copies/mL

Exclusion criteria

* BK VL \>10\^5 log * Previous BKVAN treatment * Drug hypersensitivity to mTORi or leflunomide

Design outcomes

Primary

MeasureTime frameDescription
Plasma BK viral load change6 months6-month plasma BK viral load change from randomization

Secondary

MeasureTime frameDescription
Plasma BK viral load clearance rate1, 3, 6 monthsPercentage of patients who have negative plasma BK virus at specific time point after randomization
Acute rejection rate6 months
Glomerular filtration rate (GFR) change3, 6 monthsGFR change at specific timepoint after randomization
Chronicity score in kidney allograft6 monthsBanff's criteria for allograft biopsy tissue, focus on ci and ct scores ranging from 0 (no chronicity lesion) to 3 (severe chronicity lesion)

Countries

Thailand

Contacts

PRINCIPAL_INVESTIGATORSuwasin Udomkarnjananun, MD, MSc

Chulalongkorn University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 29, 2026