Skip to content

BK Treatment Study

Effect of Fluoroquinolones on BK Viremia in the Renal Transplant Recipient, A Multi-Center Study

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01034176
Enrollment
43
Registered
2009-12-17
Start date
2009-02-28
Completion date
2012-10-31
Last updated
2017-04-24

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

Conditions

BK Viremia

Keywords

BK viremia, kidney transplantation, BK viremia in kidney transplant recipients

Brief summary

Our hypothesis is that 30 days of oral levofloxacin (FDA approved antibiotic) in patients with persistent viremia (BK virus found in blood) will impair progress to BK virus induced kidney damage by significantly decreasing or eliminating BK virus in the blood.

Interventions

DRUGlevofloxacin

500 mg tablet, daily, 30 days

DRUGplacebo

no dose, tablet, daily, 30 days

Sponsors

Brigham and Women's Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Living and cadaveric kidney transplant recipients over the age of 18 years with BK viremia

Exclusion criteria

* Female patients of childbearing age who are pregnant or in whom adequate contraception cannot be maintained. * Patients with active infections, history of malignancy/Posttransplant Lymphoproliferative Disease (PTLD) serologic positivity to HIV. * Patients with evidence of urinary tract obstruction causing allograft dysfunction, unless corrected by time of enrollment. * Patients with clinical or morphological evidence of recurrence of primary disease. * Patients with a history of allergic reaction to quinolone antibiotics. * Patients with history of prolong QT interval * Patients with recurrent hypoglycemic episodes * Patients with history of myasthenia gravis * Patients taking Thioridazine

Design outcomes

Primary

MeasureTime frameDescription
Percent Change From Baseline in BK Virus Copies at 3 MonthsBaseline and 3 monthsPercent change in BK virus copies/mL from Baseline to 3 months

Secondary

MeasureTime frameDescription
Number of Patients With >50% Reduction in BK Virus CopiesBaseline and 6 monthsNumber of patients with \>50% reduction in BK viral load at 6 months

Countries

United States

Participant flow

Participants by arm

ArmCount
Levofloxacin
Levofloxacin 500 mg every day (dose adjusted for renal function) for 30 days levofloxacin: 500 mg tablet, daily, 30 days
20
Placebo
placebo identical to levofloxacin drug daily for 30 days placebo: no dose, tablet, daily, 30 days
19
Total39

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up01
Overall StudyPhysician Decision20
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicLevofloxacinPlaceboTotal
Age, Continuous
Age at time of consent
56.22 years54.9 years55.36 years
Region of Enrollment
United States
20 participants19 participants39 participants
Sex: Female, Male
Female
2 Participants7 Participants9 Participants
Sex: Female, Male
Male
18 Participants12 Participants30 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 201 / 19
other
Total, other adverse events
2 / 200 / 19
serious
Total, serious adverse events
1 / 201 / 19

Outcome results

Primary

Percent Change From Baseline in BK Virus Copies at 3 Months

Percent change in BK virus copies/mL from Baseline to 3 months

Time frame: Baseline and 3 months

ArmMeasureValue (MEDIAN)Dispersion
LevofloxacinPercent Change From Baseline in BK Virus Copies at 3 Months70.3 Percent change of BK virus copiesStandard Deviation 42.5
PlaceboPercent Change From Baseline in BK Virus Copies at 3 Months69.1 Percent change of BK virus copiesStandard Deviation 39.5
Secondary

Number of Patients With >50% Reduction in BK Virus Copies

Number of patients with \>50% reduction in BK viral load at 6 months

Time frame: Baseline and 6 months

Population: number of patients with \>50% reduction in BK viral load at 6 months

ArmMeasureValue (NUMBER)
LevofloxacinNumber of Patients With >50% Reduction in BK Virus Copies15 participants
PlaceboNumber of Patients With >50% Reduction in BK Virus Copies13 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026