Skip to content

Trial of Third Party Donor Derived CMVpp65 Specific T-cells for The Treatment of CMV Infection or Persistent CMV Viremia After Allogeneic Hematopoietic Stem Cell Transplantation

A Phase II Trial of Third Party Donor Derived CMVpp65 Specific T-cells for The Treatment of CMV Infection or Persistent CMV Viremia After Allogeneic Hematopoietic Stem Cell Transplantation

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02136797
Enrollment
77
Registered
2014-05-13
Start date
2014-05-08
Completion date
2024-02-08
Last updated
2024-10-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

CMV Infection, Persistent CMV Viremia

Keywords

CMVpp65 Specific T-cells, Allogeneic Hematopoietic Stem Cell Transplantation, 14-070

Brief summary

The purpose of this study is to see how well transfusions of T-cells work in treating CMV. Tcells are a type of white blood cell that helps protect the body from infection. A transfusion is the process by which blood from one person is transferred to the blood of another. In this case, the T-cells are made from the blood of donors who are immune to CMV. The T-cells are then grown and taught to attack the CMV virus in a lab.

Interventions

BIOLOGICALCMVpp65 Specific T-cells

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
No

Inclusion criteria

* Each patient must satisfy at least one of the following criteria: 1. The patient must have a clinically documented condition associated with CMV (e.g. interstitial pneumonia, hepatitis, retinitis, colitis) Or 2. The patient must have microbiological evidence of CMV viremia or tissue invasion as attested by viral culture, or detection of levels of CMV DNA in the blood or body fluids consistent with CMV infection. * Patient must also satisfy at least one of the following criteria: 1. The patient's CMV infection is clinically progressing or CMV viremia is persistent or increasing (as evidenced by quantitation of CMV DNA in the blood) despite two weeks induction therapy with antiviral drugs. Or 2. The patient has developed CMV viremia as attested by viral culture, or detection of levels of CMV DNA in blood or body fluids while receiving prophylactic doses of antiviral drugs to prevent CMV infection post transplant. Or 3. The patient is unable to sustain treatment with antiviral drugs due to drug associated toxicities (e.g. myelosuppression \[ANC\< 1000μl/ml without GCSF support\] or nephrotoxicity \[corrected creatinine clearance ≤ 60 ml/min/1.73 m\^2 or serum creatinine \> 2 mg/dl\]) CMV infections are life threatening, and may involve multiple organ systems such as the lungs, liver, gastrointestinal tract, hematopoietic and central nervous systems. Antiviral drugs used for treatment may also compromise renal and hematopoietic function. Therefore, dysfunctions of these organs will not affect eligibility for this protocol. * Patients must meet the following clinical criteria to receive CMVpp65-CTL infusions 1. Stable blood pressure and circulation, not requiring pressor support 2. Evidence of adequate cardiac function as demonstrated by EKG and/or echocardiography. 3. A life expectancy of at least 3 weeks, even if requiring artificial ventilation. 4. There are no age restrictions * Patient must also satisfy at least one of the following criteria: 1. The patient's HCT donor has not been previously infected by or sensitized to CMV (e.g. a cord blood transplant or a marrow or PBSC transplant from a seronegative donor). 2. The patient's HCT donor, if seropositive, is either not available or not willing to provide leukocytes for generation of CMV-specific T-cells. 3. There are CMVpp65-specific T-cells available in appropriate doses in the MSKCC Adoptive Immune T-cell Therapy Bank that are matched with the patient for 1 HLA allele and that exhibit CMVpp65-specific cytotoxic activity that is restricted by an HLA allele shared by the patient

Exclusion criteria

* Patients requiring high doses of glucocorticosteroids (≥ 0.3 mg/kg prednisone or its equivalent) * Patients who are moribund * Patients with other conditions not related to CMV infection (e.g. uncontrolled bacterial sepsis or invasive fungal infection) which are also life-threatening and which would preclude evaluation of the effects of a T-cell infusion. * Patients who are pregnant

Design outcomes

Primary

MeasureTime frameDescription
Complete Response2 yearsdefined as the clearance of the CMV infection 3-7 weeks following completion of the last cycle of CMV CTLs.

Secondary

MeasureTime frameDescription
Number of Participants With SAE's Possibly Related to Study Treatment2 yearsWill be capturing and tracking Grade 3-5 toxicities which occur within 30 days following an infusion of CMVpp65-specific. For the evaluation of toxicities, the NCI Standard Toxicity Scale 4.0 will be employed.

Countries

United States

Participant flow

Participants by arm

ArmCount
CMVpp65-CTL T-cells
The T-cells to be infused will be selected from our bank of GMP grade CMVpp65-CTL. T-cells will be administered by bolus intravenous infusion. In this phase II trial, patients will be treated at doses of 1 x 10\^6 CMVpp65-CTL/kg/dose/week for 3 weeks. Patients will be observed for the following 3 weeks. Additional 3 week courses of CMVpp65-CTL may be administered if levels of CMV DNA in blood are still detectable despite disease stabilization or improvement. CMVpp65 Specific T-cells
77
Total77

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyNot Treated8

Baseline characteristics

CharacteristicCMVpp65-CTL T-cells
Age, Continuous43 years
Ethnicity (NIH/OMB)
Hispanic or Latino
13 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
64 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
9 Participants
Race (NIH/OMB)
Black or African American
11 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
5 Participants
Race (NIH/OMB)
White
51 Participants
Region of Enrollment
United States
77 Participants
Sex: Female, Male
Female
36 Participants
Sex: Female, Male
Male
41 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
16 / 77
other
Total, other adverse events
9 / 77
serious
Total, serious adverse events
22 / 77

Outcome results

Primary

Complete Response

defined as the clearance of the CMV infection 3-7 weeks following completion of the last cycle of CMV CTLs.

Time frame: 2 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
CMVpp65-CTL T-cellsComplete ResponseParticipants with Complete Response20 Participants
CMVpp65-CTL T-cellsComplete ResponseParticipants without Complete Response57 Participants
Secondary

Number of Participants With SAE's Possibly Related to Study Treatment

Will be capturing and tracking Grade 3-5 toxicities which occur within 30 days following an infusion of CMVpp65-specific. For the evaluation of toxicities, the NCI Standard Toxicity Scale 4.0 will be employed.

Time frame: 2 years

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
CMVpp65-CTL T-cellsNumber of Participants With SAE's Possibly Related to Study TreatmentParticipants with possibly related SAE6 Participants
CMVpp65-CTL T-cellsNumber of Participants With SAE's Possibly Related to Study TreatmentParticipants without possibly related SAE71 Participants

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026