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Multi-antigen CMV-MVA Triplex Vaccine in Reducing CMV Complications in Patients Previously Infected With CMV and Undergoing Donor Hematopoietic Cell Transplant

A Phase II Randomized, Placebo-Controlled, Multicenter Trial to Evaluate the Protective Function of a CMV-MVA Triplex Vaccine in Recipients of an Allogeneic Hematopoietic Stem Cell Transplant

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02506933
Enrollment
102
Registered
2015-07-23
Start date
2015-11-05
Completion date
2026-06-09
Last updated
2025-08-22

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

Conditions

Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Acute Lymphoblastic Leukemia in Remission, Acute Myeloid Leukemia in Remission, Chronic Lymphocytic Leukemia, Chronic Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Cytomegaloviral Infection, Hodgkin Lymphoma, Lymphadenopathy, Lymphoblastic Lymphoma, Myelodysplastic Syndrome, Myelofibrosis, Myeloproliferative Neoplasm, Non-Hodgkin Lymphoma

Brief summary

This randomized phase II trial studies the safety and how well multi-peptide cytomegalovirus (CMV)-modified vaccinia Ankara (MVA) vaccine works in reducing CMV complications in patients previously infected with CMV and are undergoing a donor hematopoietic cell transplant. CMV is a virus that may reproduce and cause disease and even death in patients with lowered immune systems, such as those undergoing a hematopoietic cell transplant. By placing 3 small pieces of CMV deoxyribonucleic acid (DNA) (the chemical form of genes) into a very safe, weakened virus called MVA, the multi-peptide CMV-MVA vaccine may be able to induce immunity (the ability to recognize and respond to an infection) to CMV. This may help to reduce both CMV complications and reduce the need for antiviral drugs in patients undergoing a donor hematopoietic cell transplant.

Detailed description

PRIMARY OBJECTIVES: I. To evaluate the safety and tolerability of CMV-MVA Triplex (multi-peptide CMV-MVA vaccine) in vaccinated hematopoietic cell transplant (HCT) recipients by assessing the following: non-relapse mortality (NRM) at 100 days post HCT, severe (grade 3-4) acute graft-versus-host disease (GVHD) (aGVHD), and grade 3-4 adverse events (AEs) (Common Terminology Criteria for Adverse Events \[CTCAE\] 4.0) probably or definitely related to the vaccination within 2 weeks from each vaccination. II. To determine if CMV-MVA Triplex reduces the frequency of CMV events defined as reactivation or CMV disease in allogeneic CMV positive HCT recipients (HCT-R+). SECONDARY OBJECTIVES: I. To characterize CMV reactivation and CMV disease in recipients of CMV-MVA Triplex compared to placebo by assessing time-to viremia (defined as number of days from transplantation to the date of \> 500 CMV gc/mL), duration of viremia, recurrence of viremia, incidence of late CMV viremia/disease (\> 100 and =\< 360 days post HCT), use of antiviral drugs (triggered by clinically significant viremia of \>= 1500 CMV gc/mL), cumulative number of CMV specific antiviral treatment days. II. To evaluate the impact of CMV-MVA Triplex on transplant related outcomes by assessing the incidence of acute GVHD (aGVHD), chronic GVHD (cGVHD), relapse, non-relapse mortality, all-cause mortality, infections. III. To determine 1) if CMV-MVA Triplex increases levels, function and kinetics of CMV-specific T cell immunity in vaccinated compared to placebo treated human leukocyte antigen (HLA) A\*0201, CMV seropositive HCT-recipients, 2) to determine whether vaccination induces adaptive natural killer (NK) cell population changes, and increase in the highly cytotoxic memory killer cell lectin-like receptor subfamily C, member 2 (NKG2C)+ NK cells, and 3) to explore GVHD biomarkers and compare between the vaccine and placebo groups. OUTLINE: Patients are randomized to 1 of 2 arms. ARM I: Patients receive multi-peptide CMV-MVA vaccine intramuscularly (IM) on days 28 and 56 post-HCT. ARM II: Patients receive placebo IM on days 28 and 56 post-HCT. After completion of study, patients are followed up for 1 year post-HCT.

Interventions

OTHERLaboratory Biomarker Analysis

Correlative studies

OTHERPlacebo

Given IM

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Diavax Biosciences
CollaboratorINDUSTRY
City of Hope Medical Center
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
SUPPORTIVE_CARE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* All subjects must have the ability to understand and the willingness to sign a written informed consent * Participant must be willing to comply with study and/or follow-up procedures, including willingness to be followed for one year post-HCT * Planned HCT for the treatment of the following hematologic malignancies: * Lymphoma (Hodgkin and Non-Hodgkin) * Myelodysplastic syndrome * Acute lymphoblastic leukemia in first or second remission (for acute lymphoblastic leukemia/lymphoblastic lymphoma, the disease status must be in hematologic remission by bone marrow and peripheral blood; persistent lymphadenopathy on computed tomography \[CT\] or CT/positron emission tomography (PET) scan without progression is allowed) * Acute myeloid leukemia in first or second remission * Chronic myelogenous leukemia in first chronic or accelerated phase, or in second chronic phase * Other hematologic malignancies including chronic lymphocytic leukemia, myeloproliferative disorders and myelofibrosis; patients with multiple myeloma and those with non-malignant disease such as aplastic anemia are excluded * Patients undergoing a second allogeneic (allo) HCT are not eligible (patients who have undergone a previous autologous HCT are eligible) * CMV seropositive (recipient) * Planned related or unrelated HCT, with 8/8 (A,B,C,DRB1) high/intermediate resolution HLA donor allele matching * Planned HCT with minimal to no-T cell depletion of graft * Conditioning and immunosuppressive regimens according to institutional guidelines are permitted * Negative serum or urine beta-human chorionic gonadotropin (HCG) test (female patient of childbearing potential only) within two weeks of registration * Seronegative for human immunodeficiency virus (HIV), hepatitis C virus (HCV) and active hepatitis B virus (HBV) (surface antigen negative) within 2 months of registration * Agreement by females of childbearing potential and sexually active males to use an effective method of contraception (hormonal or barrier method of birth control or abstinence) prior to study entry and for up to 90 days post-HCT; should a woman become pregnant or suspect that she is pregnant while participating on the trial, she should inform her treating physician immediately

Exclusion criteria

* Any prior investigational CMV vaccine * Experimental anti-CMV chemotherapy in the last 6 months * Live attenuated vaccines * Medically indicated subunit (Engerix-B for HBV; Gardasil for human papillomavirus \[HPV\]) or killed vaccines (e.g. influenza, pneumococcal, or allergy treatment with antigen injections) * Allergy treatment with antigens injections * Alemtuzumab or any equivalent in vivo T-cell depleting agent * Antiviral medications with known therapeutic effects on CMV such as ganciclovir (GCV)/valganciclovir (VAL), foscarnet (FOS), Cidofovir, CMX-001, maribavir; acyclovir has no known therapeutic efficacy against CMV and is allowable as standard of care to prevent herpes simplex virus (HSV) * Prophylactic therapy with CMV immunoglobulin or prophylactic antiviral CMV treatment * Other investigational product - concurrent enrollment in other clinical trials using any investigational new drug (IND) drugs with unknown effects on CMV or with unknown toxicity profiles is prohibited * Other medications that might interfere with the evaluation of the investigational product * Patients with active autoimmune conditions requiring systemic immunosuppressive therapy within the previous 5 years are not eligible * Pregnant women and women who are lactating; breastfeeding should be discontinued if the mother is enrolled on this study * Any other condition that would, in the Investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns or compliance with clinical study procedures, e.g., social/ psychological issues, etc * Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Design outcomes

Primary

MeasureTime frameDescription
Cytomegalovirus (CMV) Events to Day 100Prior to day 100 post-HCTCytomegalovirus (CMV) events included CMV reactivation ≥1250 CMV DNA IU/mL, CMV viremia prompting antiviral therapy, or CMV disease before day 100 after HCT.
Incidence of Severe (Grade 3-4) Acute Graft-Versus-Host DiseaseUp to 100 days post-transplantSevere acute graft-versus-host disease (aGVHD, grade 3-4) was monitored as every 12th subject on the vaccine arm reaches the 100 day evaluation point. aGVHD was scored using Keystone consensus criteria \[Przepiorka, D., et al., 1994 Consensus Conference on Acute GVHD Grading. Bone Marrow Transplant, 1995. 15(6): p. 825-8\].

Secondary

MeasureTime frameDescription
All-cause MortalityUp to 1 year post-HCTDeath due to any cause.

Countries

United States

Participant flow

Participants by arm

ArmCount
Arm I (Multi-peptide CMV-MVA Vaccine)
Patients receive multi-peptide CMV-MVA vaccine IM on days 28 and 56 post-HCT. Laboratory Biomarker Analysis: Correlative studies Multi-peptide CMV-Modified Vaccinia Ankara Vaccine: Given IM
51
Arm II (Placebo)
Patients receive placebo IM on days 28 and 56 post-HCT. Laboratory Biomarker Analysis: Correlative studies Placebo: Given IM
51
Total102

Baseline characteristics

CharacteristicArm I (Multi-peptide CMV-MVA Vaccine)Arm II (Placebo)Total
Age, Continuous60 years57 years58 years
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants12 Participants20 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
42 Participants37 Participants79 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants2 Participants3 Participants
Region of Enrollment
United States
51 participants51 participants102 participants
Sex: Female, Male
Female
24 Participants13 Participants37 Participants
Sex: Female, Male
Male
27 Participants38 Participants65 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
8 / 518 / 51
other
Total, other adverse events
50 / 5151 / 51
serious
Total, serious adverse events
15 / 5114 / 51

Outcome results

Primary

Cytomegalovirus (CMV) Events to Day 100

Cytomegalovirus (CMV) events included CMV reactivation ≥1250 CMV DNA IU/mL, CMV viremia prompting antiviral therapy, or CMV disease before day 100 after HCT.

Time frame: Prior to day 100 post-HCT

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm I (Multi-peptide CMV-MVA Vaccine)Cytomegalovirus (CMV) Events to Day 1005 Participants
Arm II (Placebo)Cytomegalovirus (CMV) Events to Day 10010 Participants
Primary

Incidence of Severe (Grade 3-4) Acute Graft-Versus-Host Disease

Severe acute graft-versus-host disease (aGVHD, grade 3-4) was monitored as every 12th subject on the vaccine arm reaches the 100 day evaluation point. aGVHD was scored using Keystone consensus criteria \[Przepiorka, D., et al., 1994 Consensus Conference on Acute GVHD Grading. Bone Marrow Transplant, 1995. 15(6): p. 825-8\].

Time frame: Up to 100 days post-transplant

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm I (Multi-peptide CMV-MVA Vaccine)Incidence of Severe (Grade 3-4) Acute Graft-Versus-Host Disease8 Participants
Arm II (Placebo)Incidence of Severe (Grade 3-4) Acute Graft-Versus-Host Disease4 Participants
Secondary

All-cause Mortality

Death due to any cause.

Time frame: Up to 1 year post-HCT

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Arm I (Multi-peptide CMV-MVA Vaccine)All-cause Mortality8 Participants
Arm II (Placebo)All-cause Mortality8 Participants

Source: ClinicalTrials.gov · Data processed: Feb 28, 2026