Overview

BK With VST for Kidney Transplant Patients

Status:
Not yet recruiting
Trial end date:
2024-11-01
Target enrollment:
0
Participant gender:
All
Summary
This study measures the safety, feasibility, and efficacy of viral-specific T cells (VST) against BK Virus (BKV) in adult kidney transplant recipients. Participants are expected to be on study for 52 weeks.
Phase:
Phase 1
Accepts Healthy Volunteers?
Accepts Healthy Volunteers
Details
Lead Sponsor:
University of Wisconsin, Madison
Criteria
Inclusion Criteria:

- Adult (age ≥ 18 and ≤75) patients suffering from BKV infection/viremia following
kidney transplantation

- BKV viremia defined as positive (≥ 250 copies/mL) BK qPCR AND

- Presence of evidence of invasive BKV infection (BK Nephropathy)

AND ONE OF THE FOLLOWING CRITERIA:

- New, persistent and/or worsening BKV-related symptoms, signs and/or markers of end
organ compromise despite being on lower immunosuppressive medication, OR

- Experiencing adverse effects of lower immunosuppressive medications (e.g., dnDSA,
biopsy proven rejection)

- Original donor ≥ 18 years if available, BKV IgG positive, eligible and capable of
undergoing a single standard 2 blood volume leukapheresis or donation of one unit
of whole blood OR If original donor is not available, BKV IgG negative OR
ineligible, then a BKV IgG positive fully or partially matched (at least 2/6
HLA-A, -B, -DRB1) family donor will be used

- Written informed consent given by patient

- Written informed consent given by donor

- Eligible Donor

Exclusion Criteria:

- Non-kidney organ transplant recipient

- Patient with acute rejection of the kidney allograft at time of T-cell transfer

- Patient receiving steroids (>0.5 mg/kg body weight (BW) prednisone equivalent) at the
time of T-cell transfer

- Patient treated with Thymoglobulin (ATG), Alemtuzumab or T-cell immunosuppressive
monoclonal antibodies within 28 days

- Patients with extra renal tissue invasive BKV infection ( biopsy proven)

- Concomitant enrollment in another clinical trial interfering with endpoints of this
study

- Any medical condition which could compromise participation in the study according to
the investigator's assessment

- Known HIV infection

- Female patient who is pregnant or breast-feeding, or adult of reproductive potential
not willing to use an effective method of birth control during study treatment Note:
Women of childbearing potential must have a negative urine pregnancy test at study
entry.

- Patients unwilling or unable to comply with the protocol or unable to give informed
consent

Donor selection priority: The original donor will be the first choice as source of T cells.
If the original donor is not available for donation of peripheral mononuclear cells or does
not meet all donor eligibility criteria, alternative related donors will be selected, with
preference for fully matched related donors over those with partial HLA matching (≥ 2/6 HLA
loci).

- All donors must be ≥ 18 years old, available, BK IgG positive, eligible and capable of
undergoing a single standard 2 blood volume leukapheresis.

If original kidney transplant donor is not available, BK IgG negative or ineligible, a BK
IgG positive fully or partially matched (≥ 2/6 HLA loci) family donor will be used.

- Related donors must be at least partially HLA compatible, matching with recipient in
at least 2/6 HLA loci (HLA-A, HLA-B and HLA-DRB1 will be considered for this).

- Donors must be BK IgG seropositive.

- Donor must meet the criteria for donor selection defined in the Standard Operating
Policies and Procedures (SOP B2.001) of the UWHC Hematopoietic Stem Cell Transplant
Program.