Treatment of Refractory BK Infections With Related Donor BK Specific Cytotoxic T-cells (CTLs)
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ClinicalTrials.gov Identifier: NCT04197596 |
Recruitment Status :
Recruiting
First Posted : December 13, 2019
Last Update Posted : October 25, 2022
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Viral Infection Primary Immune Deficiency Disorder | Biological: BK CTL | Phase 1 Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 40 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Pilot Study in the Treatment of Refractory BK Infections With Related Donor BK Specific Cytotoxic T-cells (CTLs) in Children, Adolescents and Young Adult Recipients |
Actual Study Start Date : | July 1, 2020 |
Estimated Primary Completion Date : | December 31, 2023 |
Estimated Study Completion Date : | June 30, 2024 |

Arm | Intervention/treatment |
---|---|
Experimental: BK CTL
Eligible patients with refractory BK infection will receive up to 5 infusions of BK CTLs that are donor derived.
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Biological: BK CTL
Patient with refractory BK infection and a HLA Matched Related Donors: BK specific CTLs (2.5 x 104 CD3/kg) infused intravenously on day 0 and may be additionally reinfused at a minimum of every two weeks (depending on safety and efficacy) for a maximum of five total infusions (maximum 12.5 x 104 CD3/kg). Patients with refractory BK virus and a HLA Mismatched Related Donors: BK specific CTLs (0.5x104 CD3/kg) infused intravenously on day 0 and may additionally be reinfused at a minimum of every two weeks (depending on safety and efficacy) for a maximum of five total infusions (maximum 2.5 x 104 CD3/kg). |
- Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] [ Time Frame: 12 weeks ]Patients will be monitored for adverse events following each CTL infusion

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Ages Eligible for Study: | 1 Month to 30 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
.1.1 Patients with refractory BK infection post allogeneic HSCT, post solid organ transplantation or with primary immunodeficiencies with either
- Increasing urine and/or plasma BK RT-PCR DNA (by 1 log) after 7 days or persistent quantitative qRT-PCR DNA copies after 14 days despite two weeks of appropriate anti-viral therapy AND/OR
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Medical intolerance to anti-viral therapies including:
- 2 renal toxicity with cidofovir or other > grade 2 toxicities secondary to cidofovir And/or
- known resistance to cidofovir 1.2. Consent: Written informed consent given (by patient or legal representative) prior to any study-related procedures.
1.3 Performance Status > 30% (Lansky < 16 yrs and Karnofsky > 16 yrs) 1.4 Age: 0.1 to 30.99 years 1.5 Females of childbearing potential with a negative urine pregnancy test
Exclusion:
- Patient with acute GVHD > grade 2 or extensive chronic GVHD at the time of BK CTL infusion
- Patient receiving steroids (>0.5 mg/kg prednisone equivalent) at the time of BK CTL infusion
- Patient treated with donor lymphocyte infusion (DLI) within 4 weeks prior to BK CTL infusion
- Thymoglobulin (ATG) or Alemtuzumab within 30 days
- Patient with poor performance status determined by Karnofsky (patients >16 years) or Lansky (patients ≤16 years) score ≤30%
- Concomitant enrollment in another experimental clinical trial investigating the treatment of refractory BK infection.
- Any medical condition which could compromise participation in the study according to the investigator's assessment
- Known HIV infection
- Female patient of childbearing age who is pregnant or breast-feeding or not willing to use an effective method of birth control during study treatment.
- Known hypersensitivity to iron dextran
- Patients unwilling or unable to comply with the protocol or unable to give informed consent.
- Known human anti-mouse antibodies

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04197596
Contact: Mitchell S Cairo, MD | 9145942150 | mitchell_cairo@nymc.edu | |
Contact: Lauren Harrison | 16172857844 | lauren_harrison@nymc.edu |
United States, California | |
University of California San Francisco | Recruiting |
San Francisco, California, United States, 94158 | |
Contact: Julia Chu, MD Julia.Chu2@ucsf.edu | |
United States, Colorado | |
Children's Hospital of Colorado | Recruiting |
Aurora, Colorado, United States, 80045 | |
Contact: Michael Verneris, MD 720-777-1234 Michael.Verneris@childrenscolorado.org | |
Contact: Amanda Kinderman, MPH 303-724-3652 amanda.kinderman@ucdenver.edu | |
United States, Maryland | |
Johns Hopkins | Recruiting |
Baltimore, Maryland, United States, 21287 | |
Contact: Kenneth Cooke, MD | |
United States, Missouri | |
Washington University | Recruiting |
Saint Louis, Missouri, United States, 63130 | |
Contact: Shalini Shenoy, MD shalinishenoy@wustl.edu | |
United States, New York | |
New York Medical College | Recruiting |
Valhalla, New York, United States, 10595 | |
Contact: Mitchell S Cairo, MD 914-594-2150 mitchell_cairo@nymc.edu | |
Contact: Lauren Harrison, RN 6172857844 lauren_harrison@nymc.edu | |
Principal Investigator: Mitchell S. Cairo, MD | |
United States, Ohio | |
Nationwide Children's Hosptial | Recruiting |
Columbus, Ohio, United States, 43205 | |
Contact: Dean Lee, MD, PhD 614-722-3550 Dean.Lee@nationwidechildrens.org | |
United States, Pennsylvania | |
Children's Hospital of Pennsylvania | Recruiting |
Philadelphia, Pennsylvania, United States, 19104 | |
Contact: Nancy Bunin, MD 215-590-2255 buninn@email.chop.edu | |
United States, Wisconsin | |
Medical College of Wisconsin | Recruiting |
Milwaukee, Wisconsin, United States, 53226 | |
Contact: Julie A Talano, MD 414-955-4185 jtalano@mcw.edu | |
Principal Investigator: Julie A Talano, MD |
Principal Investigator: | Mitchell S Cairo, MD | New York Medical College |
Responsible Party: | New York Medical College |
ClinicalTrials.gov Identifier: | NCT04197596 |
Other Study ID Numbers: |
NYMC 590 |
First Posted: | December 13, 2019 Key Record Dates |
Last Update Posted: | October 25, 2022 |
Last Verified: | October 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Infections Communicable Diseases Virus Diseases Primary Immunodeficiency Diseases Immunologic Deficiency Syndromes |
Disease Attributes Pathologic Processes Immune System Diseases Genetic Diseases, Inborn |