Haufen Diagnostic Biomarkers of BK Renal Disease

NCT ID: NCT01094691

Last Updated: 2023-06-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-11-30

Study Completion Date

2019-07-31

Brief Summary

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To prospectively test whether the detection of three-dimensional, cast-like polyomavirus aggregates, termed Haufen, in voided urine samples can serve as an accurate biomarker of intra-renal disease, i.e. polyoma-BK-virus nephropathy (PVN). We want to correlate the detection of 'Haufen' with histologic findings made in renal biopsies as well as signs of polyomavirus activation, i.e. viremia and viruria. The prospective study is designed to further validate our retrospective findings (manuscript in press, J Am Soc Nephrology) and more specifically to correlate 'Haufen' shedding with the histologically confirmed course of PVN.

Detailed Description

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Conditions

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Polyoma Virus Nephropathy

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Renal Allograft Biopsy

Urine left over from clinic visits is analyzed for 'Haufen' by negative staining electron microscopy as a marker of intra-renal polyomavirus nephropathy. Correlate Haufen, urine, and plasma data with the clinical presentation and with renal biopsy findings. Patients with PVN will be approached for study participation in which their routine samples will be monitored until urine is negative for 'Haufen', and a study protocol biopsy will be obtained for confirmation.

Group Type EXPERIMENTAL

Renal Allograft Biopsy

Intervention Type PROCEDURE

A renal allograft biopsy will be performed when the urine is determined to be Haufen negative.

Interventions

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Renal Allograft Biopsy

A renal allograft biopsy will be performed when the urine is determined to be Haufen negative.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Age 18 or older
* Recipient of renal transplant
* Positive for polyoma virus
* Haufen cells present in urine
* Positive for polyoma virus nephropathy
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Astellas Pharma US, Inc.

INDUSTRY

Sponsor Role collaborator

University of North Carolina, Chapel Hill

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Volker Nickeleit, MD

Role: PRINCIPAL_INVESTIGATOR

University of North Carolina, Chapel Hill

Locations

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University of North Carolina-CH Dept of Pathology

Chapel Hill, North Carolina, United States

Site Status

Countries

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United States

Other Identifiers

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08-1519

Identifier Type: -

Identifier Source: org_study_id

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