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Cord Blood Transplant With Dilanubicel for the Treatment of HIV Positive Hematologic Cancers

Infusion of Off-the-Shelf Ex Vivo Expanded Cryopreserved Progenitor Cells to Facilitate the Engraftment of a Single CCR5Δ32 Homozygous or Heterozygous Cord Blood Unit in Patients With HIV and Hematological Malignancies

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04083170
Enrollment
1
Registered
2019-09-10
Start date
2022-10-06
Completion date
2022-11-30
Last updated
2025-01-01

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

Conditions

Acute Erythroid Leukemia, Acute Lymphoblastic Leukemia, Acute Megakaryoblastic Leukemia, Acute Myeloid Leukemia, Chronic Myelogenous Leukemia, BCR-ABL1 Positive, Hematopoietic and Lymphoid Cell Neoplasm, HIV Infection, Myelodysplastic Syndrome, Myelodysplastic Syndrome With Excess Blasts, Non-Hodgkin Lymphoma, Refractory Anemia

Brief summary

This phase II trial studies the side effects of a cord blood transplant using dilanubicel and to see how well it works in treating patients with human immunodeficiency virus (HIV) positive hematologic (blood) cancers. After a cord blood transplant, the immune cells, including white blood cells, can take a while to recover, putting the patient at increased risk of infection. Dilanubicel consists of blood stem cells that help to produce mature blood cells, including immune cells. Drugs used in chemotherapy, such as fludarabine, cyclophosphamide, and thiotepa, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Total body irradiation is a type of whole-body radiation. Giving chemotherapy and total-body irradiation before a cord blood transplant with dilanubicel may help to kill any cancer cells that are in the body and make room in the patient's bone marrow for new stem cells to grow and reduce the risk of infection.

Detailed description

OUTLINE: Patients are assigned to 1 of 2 regimens. REGIMEN A: Patients receive fludarabine intravenously (IV) over 30 minutes on days -8 to -6, cyclophosphamide IV on days -7 to -6, and undergo total body irradiation (TBI) twice daily (BID) on days -4 to -1. Patients then undergo umbilical cord blood transplant on day 0. Between 4-24 hours after transplant completion, patients receive dilanubicel IV over 5-10 minutes in the absence of disease progression or unacceptable toxicity. REGIMEN B: Patients receive fludarabine IV over 30-60 minutes on days -6 to -2, cyclophosphamide IV on day -6, thiotepa IV over 4 hours on days -5 to -4, and undergo TBI once daily (QD) on days -2 to -1. Patients then undergo umbilical cord blood transplant on day 0. Between 4-24 hours after transplant completion, patients receive dilanubicel IV over 5-10 minutes in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 28, 80, and 180 days, and then at 1 and 2 years.

Interventions

DRUGFludarabine

Given IV

DRUGCyclophosphamide

Given IV

DRUGThiotepa

Given IV

RADIATIONTotal-Body Irradiation

Undergo TBI

PROCEDUREUmbilical Cord Blood Transplantation

Undergo UCBT

BIOLOGICALDilanubicel

Given IV

Sponsors

National Heart, Lung, and Blood Institute (NHLBI)
CollaboratorNIH
Fred Hutchinson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
6 Months to 65 Years
Healthy volunteers
No

Inclusion criteria

* \>= 6 months to =\< 65 years * Treatment with combination antiretroviral therapy (cART) for at least 1 month before enrollment * Viral load \< 5000 copies/ml plasma on cART * Disease criteria * Acute myeloid leukemia * High risk in first complete remission (CR1), \>= 2 cycles to obtain complete remission (CR), erythroblastic or megakaryocytic leukemia; \>= in second complete remission (CR2) * All patients must be in CR as defined by hematologic recovery and \< 5% blasts by morphology within the bone marrow and a cellularity of \>= 15% * Patients for whom adequate marrow/biopsy specimens cannot be obtained to determine remission status by morphologic assessment, but have fulfilled criteria of remission by flow cytometry, recovery of peripheral blood counts with no circulating blasts, and/or normal cytogenetics (if applicable) may still be eligible. Specimen for morphologic assessment, including possible repeat procedures will be obtained (as possible). These patients must be discussed with the lead principal investigator, Filippo Milano prior to enrollment * Acute lymphoblastic leukemia * High risk CR1 (for example, but not limited to: t(9;22), t(1;19), t(4;11) or other mixed-lineage leukemia \[MLL\] rearrangements, hypodiploid); greater than 1 cycle to obtain CR; \>= CR2 * All patients must be in CR as defined by hematologic recovery and \< 5% blasts by morphology within the bone marrow and a cellularity of \>= 15% * Patients in which adequate marrow/biopsy specimens cannot be obtained to determine remission status by morphologic assessment, but have fulfilled criteria of remission by flow cytometry, recovery of peripheral blood counts with no circulating blasts, and/or normal cytogenetics (if applicable) may still be eligible. Specimen for morphologic assessment, including possible repeat procedures will be obtained (as possible). These patients must be discussed with the lead principal investigator, Filippo Milano prior to enrollment * Chronic myelogenous leukemia excluding refractory blast crisis. To be eligible in first chronic phase (CP1) patient must have failed or be intolerant to imatinib mesylate * Myelodysplasia (MDS) International Prognostic Scoring System (IPSS) intermediate (Int)-2 or high risk (i.e., refractory anemia with excess blasts \[RAEB\], refractory anemia with excess blasts in transformation \[RAEBt\]) or refractory anemia with severe pancytopenia or high-risk cytogenetics. Blasts must be \< 10% by a representative bone marrow aspirate morphology * Other hematologic malignancy such as non-Hodgkin lymphomas. Fred Hutch site: These patients must be presented at Patient Care Conference (PCC) prior to enrollment, given potential competing eligibility on auto-transplant protocols. Participating centers: These patients must be discussed with the lead principal investigator, Filippo Milano prior to enrollment * Karnofsky (\>= 16 years old) \>= 70% * Lansky (\< 16 years old) \>= 50% * Adults: Calculated creatinine clearance must be \> 60 mL and serum creatinine =\< 2 mg/dL * Children (\< 18 years old): Calculated creatinine clearance must be \> 60 mL/min * Total serum bilirubin must be \< 3 mg/dL * Transaminases must be \< 3 x the upper limit of normal * Diffusion capacity of the lung for carbon monoxide (DLCO) corrected \> 50% normal or for pediatric patients in whom DLCO cannot be measured has adequate pulmonary function * Left ventricular ejection fraction \> 45% OR * Shortening fraction \> 26% * Ability to understand and the willingness to sign a written informed consent document (adult subject or parent/legal guardian of minor subject)

Exclusion criteria

* Uncontrolled viral or bacterial infection at the time of study enrollment * Active or recent (prior 6 month) invasive fungal infection without infectious disease (ID) consult and approval * Pregnant or breastfeeding * Prior myeloablative transplant within the last 6 months * Extensive prior therapy including \> 12 months alkylator therapy or \> 6 months alkylator therapy with extensive radiation * Central nervous system (CNS) leukemic involvement not clearing with intrathecal chemotherapy. Diagnostic lumbar puncture to be performed

Design outcomes

Primary

MeasureTime frameDescription
Primary Graft Failure RejectionUp to day 35 post-transplantWill be defined by no neutrophil recovery by day 45 (regardless of donor chimerism) or autologous recovery (neutrophil recovery but \< 10% donor chimerism in blood and bone marrow) by day 36. This outcome was originally intended to be assessed for per the aforementioned definitions, but was only able to be assessed through 35 days post-transplant.

Secondary

MeasureTime frameDescription
Median Number of Days Post-Transplant to Neutrophil Recovery OccurredUp to Day 35 post-transplantNeutrophil recovery is defined as the first day of 2 consecutive days of absolute neutrophil count \>= 500 after the first post-cord blood transplant nadir. This outcome was originally intended to be assessed for up to 45 days post-transplant, but was only able to be assessed through 35 days post-transplant.
Platelet Engraftment35 days post-transplantWill be defined as the first day of a platelet count \> 20,000/ul with subsequent transfusions for 7 days. This outcome was originally intended to be assessed for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.
Incidence of Severe (Grades III-IV) Acute Graft Versus Host Disease (GVHD)35 days post-transplantWill be defined by the 2014 National Institutes of Health (NIH) criteria. This outcome was originally intended to be assessed for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.
Incidence of Chronic GVHD35 days post-transplantWill be defined by the 2014 NIH criteria. This outcome was originally intended to be assessed for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.
Incidence of Non-relapse Mortality35 days post-transplantWill be defined as death without a prior relapse. This outcome was originally intended to be assessed for up to 180 days post-transplant, but was only able to be assessed through 35 days post-transplant.
Incidence of Infusion ToxicitiesWithin the first 24 hours after infusionDefined as Common Terminology Criteria for Adverse Events version 5.0 grade \>= 3 events.
Immune HomeostasisUp to 2 yearsConcentration of immunity cells per microliters after transplant
Immune ReconstitutionUp to 2 yearsConcentration of immunity cells per microliters after transplant
Change in HIV-1 Induced Inflammatory Immune ResponsesUp to 2 yearsHIV viral load by PCR (copies per milliliter; mL)
HIV Rebound Following Antiretroviral Therapy (ART) CessationUp to 2 yearsCount of participants with HIV rebound, measured by HIV viral load by PCR (copies per milliliter; mL)
Viral Kinetics Following ART CessationUp to 2 yearsHIV viral load by PCR (copies per milliliter; mL)
Human Immunodeficiency Virus (HIV) Plasma Viral LoadBaseline and weekly to 35 days post-transplantAssess CCR5Δ32 cord blood stem cell engraftment and its effect on biomarkers of HIV-1 infection, including plasma viral load and replication-competent reservoirs, as well as in gut and other sites (if tissue samples are available). This outcome was originally intended to be assessed weekly for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.

Countries

United States

Participant flow

Participants by arm

ArmCount
Regimen A (Fludarabine, Cyclophosphamide, TBI, Followed by Unmanipulated Cord Blood and Dilanubicel)
Patients receive fludarabine IV over 30 minutes on days -8 to -6, cyclophosphamide IV on days -7 to -6, and undergo TBI BID on days -4 to -1 (totaling 1320 cGy). Patients then undergo umbilical cord blood transplant on day 0. Between 4-24 hours after transplant completion, patients receive dilanubicel IV over 5-10 minutes in the absence of disease progression or unacceptable toxicity. Fludarabine: Given IV Cyclophosphamide: Given IV Total-Body Irradiation: Undergo TBI Umbilical Cord Blood Transplantation: Undergo UCBT Dilanubicel: Given IV
0
Regimen B (Anti-cancer Drugs Plus TBI, Followed by Unmanipulated Cord Blood and Dilanubicel)
Patients receive fludarabine IV over 30-60 minutes on days -6 to -2, cyclophosphamide IV on day -6, thiotepa IV over 4 hours on days -5 to -4, and undergo TBI QD on days -2 to -1 (totaling 400 cGy). Patients then undergo umbilical cord blood transplant on day 0. Between 4-24 hours after transplant completion, patients receive dilanubicel IV over 5-10 minutes in the absence of disease progression or unacceptable toxicity. Fludarabine: Given IV Cyclophosphamide: Given IV Thiotepa: Given IV Total-Body Irradiation: Undergo TBI Umbilical Cord Blood Transplantation: Undergo UCBT Dilanubicel: Given IV
1
Total1

Baseline characteristics

CharacteristicRegimen B (Anti-cancer Drugs Plus TBI, Followed by Unmanipulated Cord Blood and Dilanubicel)TotalRegimen A (Fludarabine, Cyclophosphamide, TBI, Followed by Unmanipulated Cord Blood and Dilanubicel)
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
1 Participants1 Participants0 Participants
Age, Continuous21 years21 years
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Matched cord blood unit with either homozygous or heterozygous CCR5Δ32 mutation.
Heterozygous CCR5Δ32 Mutation in CBU
0 Participants0 Participants
Matched cord blood unit with either homozygous or heterozygous CCR5Δ32 mutation.
Homozygous CCR5Δ32 Mutation in CBU
1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants
Region of Enrollment
United States
1 participants1 participants
Sex: Female, Male
Female
0 Participants0 Participants
Sex: Female, Male
Male
1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 01 / 1
other
Total, other adverse events
0 / 01 / 1
serious
Total, serious adverse events
0 / 01 / 1

Outcome results

Primary

Primary Graft Failure Rejection

Will be defined by no neutrophil recovery by day 45 (regardless of donor chimerism) or autologous recovery (neutrophil recovery but \< 10% donor chimerism in blood and bone marrow) by day 36. This outcome was originally intended to be assessed for per the aforementioned definitions, but was only able to be assessed through 35 days post-transplant.

Time frame: Up to day 35 post-transplant

Population: No participants were enrolled to Regimen A of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Primary Graft Failure Rejection0 Participants
Secondary

Change in HIV-1 Induced Inflammatory Immune Responses

HIV viral load by PCR (copies per milliliter; mL)

Time frame: Up to 2 years

Population: No participants survived until 2 years, so outcome could not be measured.

Secondary

HIV Rebound Following Antiretroviral Therapy (ART) Cessation

Count of participants with HIV rebound, measured by HIV viral load by PCR (copies per milliliter; mL)

Time frame: Up to 2 years

Population: No participants survived until 2 years, so outcome could not be measured.

Secondary

Human Immunodeficiency Virus (HIV) Plasma Viral Load

Assess CCR5Δ32 cord blood stem cell engraftment and its effect on biomarkers of HIV-1 infection, including plasma viral load and replication-competent reservoirs, as well as in gut and other sites (if tissue samples are available). This outcome was originally intended to be assessed weekly for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.

Time frame: Baseline and weekly to 35 days post-transplant

Population: No participants were enrolled to Regimen A of the study.

ArmMeasureValue (NUMBER)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Human Immunodeficiency Virus (HIV) Plasma Viral Load0 percentage of viral load change
Secondary

Immune Homeostasis

Concentration of immunity cells per microliters after transplant

Time frame: Up to 2 years

Population: No participants survived until 2 years, so outcome could not be measured.

Secondary

Immune Reconstitution

Concentration of immunity cells per microliters after transplant

Time frame: Up to 2 years

Population: No participants survived until 2 years, so outcome could not be measured.

Secondary

Incidence of Chronic GVHD

Will be defined by the 2014 NIH criteria. This outcome was originally intended to be assessed for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.

Time frame: 35 days post-transplant

Population: No participants were enrolled to Regimen A of the study.

ArmMeasureValue (NUMBER)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Incidence of Chronic GVHD0 Number of cGVHD Events
Secondary

Incidence of Infusion Toxicities

Defined as Common Terminology Criteria for Adverse Events version 5.0 grade \>= 3 events.

Time frame: Within the first 24 hours after infusion

Population: No participants were enrolled to Regimen A of the study.

ArmMeasureValue (NUMBER)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Incidence of Infusion Toxicities0 infusion toxicity events
Secondary

Incidence of Non-relapse Mortality

Will be defined as death without a prior relapse. This outcome was originally intended to be assessed for up to 180 days post-transplant, but was only able to be assessed through 35 days post-transplant.

Time frame: 35 days post-transplant

Population: No participants were enrolled to Regimen A of the study.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Incidence of Non-relapse Mortality1 Participants
Secondary

Incidence of Severe (Grades III-IV) Acute Graft Versus Host Disease (GVHD)

Will be defined by the 2014 National Institutes of Health (NIH) criteria. This outcome was originally intended to be assessed for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.

Time frame: 35 days post-transplant

Population: No participant was enrolled to Regimen A of the study.

ArmMeasureValue (NUMBER)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Incidence of Severe (Grades III-IV) Acute Graft Versus Host Disease (GVHD)0 Number of Grade 3/4 aGVHD Events
Secondary

Median Number of Days Post-Transplant to Neutrophil Recovery Occurred

Neutrophil recovery is defined as the first day of 2 consecutive days of absolute neutrophil count \>= 500 after the first post-cord blood transplant nadir. This outcome was originally intended to be assessed for up to 45 days post-transplant, but was only able to be assessed through 35 days post-transplant.

Time frame: Up to Day 35 post-transplant

Population: No participants were enrolled to Regimen A of the study.

ArmMeasureValue (MEDIAN)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Median Number of Days Post-Transplant to Neutrophil Recovery Occurred16 Days post-transplant
Secondary

Platelet Engraftment

Will be defined as the first day of a platelet count \> 20,000/ul with subsequent transfusions for 7 days. This outcome was originally intended to be assessed for up to 2 years post-transplant, but was only able to be assessed through 35 days post-transplant.

Time frame: 35 days post-transplant

Population: No participants were enrolled to Regimen A of the study. The single Regimen B participant did not achieve platelet engraftment prior to death on Day +35 post-transplant.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Regimen B (Anticancer Drugs, TBI, Dilanubicel)Platelet Engraftment0 Participants
Secondary

Viral Kinetics Following ART Cessation

HIV viral load by PCR (copies per milliliter; mL)

Time frame: Up to 2 years

Population: No participants survived until 2 years, so outcome could not be measured.

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026