NCT06909110 · Jessie L. Alexander
Viral Specific T-Lymphocytes to Treat Infection With Adenovirus, Cytomegalovirus or Epstein-Barr Virus in Patients With Compromised Immunity
What this study is about
The primary purpose of this phase I/II study is to evaluate whether partially matched, ≥2/6 HLA-matched, viral specific T cells have effectiveness against adenovirus, CMV, and EBV, in subjects who have previously received any type of allogeneic HCT or solid organ transplant (SOT), or have compromised immunity.
View original scientific description
The primary purpose of this phase I/II study is to evaluate whether partially matched, ≥2/6 HLA-matched, viral specific T cells have efficacy against adenovirus, CMV, and EBV, in subjects who have previously received any type of allogeneic HCT or solid organ transplant (SOT), or have compromised immunity. Reconstitution of anti-viral immunity by donor-derived cytotoxic T lymphocytes has shown promise in preventing and treating infections with adenovirus, CMV, and EBV.
Interventions
BIOLOGICAL
Adenovirus Specific T- Lymphocytes
Peripheral blood mononuclear cells will be collected from the donor and loaded onto our Miltenyi Biotec CliniMACS Prodigy® or CliniMACS® Plus where they will be stimulated in vitro with Adenovirus viral-specific antigen(s). The cells are then immunomagnetically labeled with interferon gamma via the cytokine capture system, captured and infused.
BIOLOGICAL
Cytomegalovirus Specific T-Lymphocytes
Peripheral blood mononuclear cells will be collected from the donor and loaded onto our Miltenyi Biotec CliniMACS Prodigy® or CliniMACS® Plus where they will be stimulated in vitro with Cytomegalovirus viral-specific antigen(s). The cells are then immunomagnetically labeled with interferon gamma via the cytokine capture system, captured and infused.
BIOLOGICAL
Epstein-Barr Virus Specific T-Lymphocytes
Peripheral blood mononuclear cells will be collected from the donor and loaded onto our Miltenyi Biotec CliniMACS Prodigy® or CliniMACS® Plus where they will be stimulated in vitro with Epstein-Barr viral-specific antigen(s). The cells are then immunomagnetically labeled with interferon gamma via the cytokine capture system, captured and infused.
Primary outcome measures
Grade III-IV Acute Graft versus host disease
Time frame: Day 0 through 90 days after last cellular infusion
The number of patients who develop Grade III-IV acute graft versus host disease (GVHD) attributed to the viral specific T cells.
CTCAE Grade 4/5 Adverse Events
Time frame: Day 0 through 30 days from last cellular infusion
The incidence of patients who develop CTCAE Grade 4/5 Adverse events related to infusion
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Patient, parent, or legal guardian must have given written informed consent, according to FDA guidelines. For patients ≥ 7 years of age who are developmentally able, assent or affirmation will be obtained, if feasible.
- Male or female, 1 month through 65 years old, inclusive, at the time of informed consent.
- Prior allogeneic hematopoietic stem cell transplant, AND/OR prior solid organ transplant (liver, kidney, lung and/or heart, intestinal, pancreatic, and/or multivisceral), AND/OR diagnosis of primary immunodeficiency AND/OR current/recent administration of immunosuppressive therapy for cancer or autoimmune disease.
- If receiving steroids, must be able to taper dose to less than 1 mg/kg/day prednisone (or equivalent) prior to cellular infusion.
- Negative pregnancy test for females ≥10 years old or who have reached menarche, unless surgically sterilized or post-menopausal.
- Diagnosis of Adenovirus, CMV, or EBV infection, persistent despite standard therapy. A. Adenovirus Infection or Disease (at minimum, one of the below sub-criteria must be met):
- Active adenovirus infection: (i.e. gastroenteritis, pneumonia, hemorrhagic cystitis, hepatitis, pancreatitis, meningitis) defined as the demonstration of adenovirus by biopsy specimen from affected site(s) (by culture or histology), or the detection of adenovirus by culture, PCR or direct fluorescent antibody stain in fluid in the presence of worsening or persistent clinical or imaging findings despite at least 14 days of appropriate antiviral therapy (i.e. cidofovir, brincidofovir, or other available pharmacological agents)
- Refractory adenoviremia: defined as DNAemia ≥1000 copies/mL or \<1 log decrease after at least 2 weeks of appropriate antiviral therapy (i.e. cidofovir, brincidofovir, or other available pharmacological agents)
- Intolerance of or contraindication to antiviral medications. B. CMV Infection or Disease (at minimum, one of the below sub-criteria must be met):
- Active CMV infection: (i.e. pneumonia, meningitis, retinitis, hepatitis, hemorrhagic cystitis, and/or gastroenteritis) defined as the demonstration of CMV by biopsy specimen from affected site(s) (by culture or histology) or the detection of CMV by culture, PCR or direct fluorescent antibody stain in fluid in the presence of worsening or persistent clinical or imaging findings despite at least 14 days of appropriate antiviral therapy (i.e. Foscarnet, ganciclovir, cidofovir, or other available pharmacological agents)
- Refractory CMV viremia: defined as the continued presence of DNAemia, with ≥1,000 IU/mL or \<1 log decrease after at least 14 days of appropriate antiviral therapy (i.e. Foscarnet, ganciclovir, cidofovir, or other available pharmacological agents)
- Intolerance of or contraindication to antiviral medications. C. EBV Infection or Disease (at minimum, one of the below sub-criteria must be met):
- EBV DNAemia ≥1000 IU/mL, persistent despite 2 doses of rituximab,
- Biopsy proven lymphoma or lymphoproliferative disease with EBV genomes detected in tumor cells by immunocytochemistry (i.e. EBER positive) or in situ PCR,
- Clinical or imaging findings consistent with EBV lymphoma or lymphoproliferation with current or recent elevated EBV viral load in peripheral blood in a patient where biopsy is deemed too high risk,
- Failure of antiviral therapy, as determined by one of the two bullets below after two weeks of anti-CD20 targeted therapy such as rituximab, i. There was an increase or less than 50% response at sites of lymphoma disease or lymphoproliferation. ii. There was a rise or a fall of less than 50% in EBV viral load in peripheral blood.
- Intolerance or contraindication to rituximab. Patient
Exclusion criteria
- Received ATG or Alemtuzumab within 21 days of viral-specific T cell infusion and a lack of evidence of T cell survival, defined by \<10 CD3+ T cells/uL (in unique situations, plasmapheresis may be considered).
- Active acute GVHD grades II-IV.
- Active severe chronic GVHD.
- Received donor lymphocyte infusion, with the exception of a fraction of an umbilical cord blood, within 21 days of planned viral-specific T cell infusion. Subjects receiving a fraction of an umbilical cord blood within 21 days of the viral-specific T cell infusion will not be excluded.
- Active and uncontrolled relapse of malignancy (other than EBV+ post-transplant lymphoproliferative disorder or lymphoma).
- Anticipated initiation of new lymphotoxic therapy within 4 weeks of viral-specific T cell infusion.
- Patients who are pregnant or lactating.
- Past or current medical problems or findings from physical examination or laboratory testing that are not listed above, or concomitant medications, which, in the opinion of the investigator, may pose additional risks to participation in the study, may interfere with the participant's ability to comply with study requirements, or that may impact the quality or interpretation of the data obtained from the study. Donor Inclusion Criteria
- Able to understand and sign the consent/assent to the procedure
- Partial (2/6 or more) HLA match to the recipient
- A pediatric donor could be selected as a donor only if a suitable adult donor is not available (as attested by the research team) or is ineligible according to FACT requirements. For pediatric donors:
- Related to the recipient
- Apheresis does not need a blood prime before the procedure
- Adequate peripheral venous access
- Explicit evaluation of the donors' willingness to donate cells, as attested by the research team
- Must have understanding that they are helping their ill relative, as attested by the research team
- Will gain emotional/psychological benefit from their ability to help and want to donate for a relative, as attested by the research team
- Donor is pregnant
- Donor is HIV positive
- Donor is positive for hepatitis B and/or hepatitis C
- Deemed to be a high-risk donor based on responses to donor risk questionnaire
- Deemed high risk due to preexisting medical condition or abnormal lab results
Where
- Palo Alto, California
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Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Aug 14, 2025 · Source of record for eligibility and locations