Third-Party BK Virus-Specific Cytotoxic T Lymphocyte Therapy for Hemorrhagic Cystitis Following Allotransplantation.
Amanda Olson, Ruitao Lin, David Marin...
https://pubmed.ncbi.nlm.nih.gov/33929874/Actively Recruiting
Led by M.D. Anderson Cancer Center · Updated on 2026-06-12
100
Participants Needed
1
Research Sites
N/A
Total Duration
Researchers are evaluating the use of donor cytotoxic T lymphocytes CTLs to treat patients who have malignancies associated with BK andor JC virus infections. These CTLs are specially grown from donated blood cells to target viruses that often cause infections in transplant patients. The study aims to assess the effectiveness, feasibility, and safety of these BK-specific CTLs administered to patients with various malignancies, HIVAIDS, or a history of solid organ transplant who have BK and JC infections. Participants will receive allogeneic BK-specific cytotoxic T-lymphocytes through an intravenous infusion lasting about 30 minutes. Those showing partial response, stable disease, or progression may receive up to 19 additional CTL infusions at least two weeks apart if they remain eligible. After completing the CTL treatments, participants will be followed for up to 12 months to monitor health and treatment effects. During the study, participants will undergo regular assessments including response evaluation within 56 days, monitoring for graft-versus-host disease within 28 days after the last infusion, and adverse event tracking up to 100 days. Additional measures include overall survival and kidney function tests monitored up to 12 months after treatment. The study includes laboratory biomarker analyses to support correlative research and involves periodic follow-up visits to track participants health and treatment outcomes.
CONDITIONS
Cytotoxic T Lymphocytes in Treating Patients With Malignancies With BK and/or JC Virus
G
George Chen, MD
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M.D. Anderson Cancer Center
Lead Sponsor
National Cancer Institute (NCI)
Collaborating Sponsor
This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
| Factors | Investigational Cytotoxic T-cell Therapy | Supportive and Antiviral Therapy |
|---|---|---|
| What it is | An adoptive immunotherapy using donor-derived (allogeneic) cytotoxic T cells specifically targeted to BK and/or JC polyomavirus, administered intravenously to immunocompromised or high-risk patients with confirmed virus-associated disease or malignancy. | Management typically consists of supportive care, reduction of immunosuppression (when possible), and off-label antiviral or adjunctive therapies such as cidofovir or leflunomide. No specific, approved virus-targeted immunotherapy exists. |
| Role in the trial | Tested as the primary investigational therapy for treatment of virus-associated diseases in a high-risk, immunosuppressed patient population who have poor or no response to available antiviral drugs. | Used in routine practice when BK or JC virus-related disease is diagnosed, aiming to control viral load and relieve symptoms, often with only limited effectiveness. |
| Primary use | Intended for patients with BK and/or JC polyomavirus diseases, malignancy, or post-transplant status, including those not responding to standard antivirals. | For polyomavirus-related complications in transplant recipients, immunocompromised patients, and those with progressive multifocal leukoencephalopathy, where antiviral options provide limited benefit. |
| How it is given or performed | Provided as intravenous infusions of donor-derived BK virus-specific CTLs. Number and timing of doses may vary by patient response and protocol schedule. | Involves dose reduction of immunosuppressive therapy where feasible, plus supportive and/or antiviral drugs (e.g., cidofovir, leflunomide) according to clinician judgment. |
| Evidence status | Early-phase clinical evidence, mostly from single-arm studies and pilot-series (including this trial), suggests potential for symptom improvement or disease response, but no comparative outcome studies or long-term efficacy data are yet available. | Available real-world and clinical evidence confirms that current care (supportive, antiviral agents, immunosuppression adjustment) achieves limited or inconsistent efficacy, especially for severe or persistent cases. |
| Important limitations | The therapy is experimental, with limited long-term data and no randomized comparison; access restricted to trial settings. The effect on diverse patient groups, the risk for graft-versus-host disease, and cost/logistics are still under investigation. | Standard therapies (supportive, antiviral, immunosuppression reduction) often fail to provide consistent benefit. Toxicity of antivirals and risk of rejection or relapse with immunosuppression changes are substantial limitations. |
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
You may qualify if you...
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Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
Duration - Variable, depending on response and eligibility
Participants receive intravenous infusions of BK-specific cytotoxic T lymphocytes over 30 minutes. Those with partial response, stable disease, or progression may receive up to 19 additional infusions at least two weeks apart if eligible.
Duration - Up to 12 months
Participants are followed periodically for up to 12 months after completing treatment to monitor overall survival, kidney function, and any adverse effects.
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
NA
Model
SINGLE_GROUP
Primary Purpose
TREATMENT
Number of Arms
1
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Lead Sponsor
National Cancer Institute (NCI)
Collaborating Sponsor