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Busulfan, Melphalan, Fludarabine and T-Cell Depleted Allogeneic Hematopoietic Stem Cell Transplantation Followed by Post Transplantation Donor Lymphocyte Infusions

A Trial of Busulfan, Melphalan, Fludarabine and T-Cell Depleted Allogeneic Hematopoietic Stem Cell Transplantation Followed by Post Transplantation Donor Lymphocyte Infusions for Patients With Relapsed or High-Risk Multiple Myeloma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01131169
Enrollment
66
Registered
2010-05-26
Start date
2010-05-31
Completion date
2020-05-15
Last updated
2021-12-02

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

Conditions

Multiple Myeloma

Keywords

Myeloma, Busulfan, Melphalan, Fludarabine, T-Cell, Stem Cell Transplantation, 10-051

Brief summary

The patients are being offered a stem cell transplant. Stem cells are very early blood cells. They have not yet matured to become red or white blood cells or platelets. They have already received the standard treatment of chemotherapy and an autologous stem cell transplant. An autologous stem cell transplant is when the patient receives their infusion of their own cells. Thi will give the patient a better chance of curing the disease, this protocol includes an infusion of stem cells from the blood (or the bone marrow) of another person. This is called an allogeneic stem cell transplant. The stem cells will begin to grow in the bone marrow and produce new blood cells. Allogeneic stem cell transplants can cause a condition called graft-versus-host disease or GVHD. In GVHD, a kind of white blood cell from the donor (graft) begins to attack the body (host). That blood cell is called a T-cell. It is a cell that normally helps to protects against things like bacteria and viruses. In this case, the donor's T-cells see the body as foreign in the same way they would see bacteria as foreign. GVHD can be fatal. In order to lower the chance that the patient will get GVHD this protocol treatment will remove the T-cells from the donor's cells. This is called T-cell depletion. The T cells are removed by a system called Clinimacs. This method is still being evaluated through clinical trials and not been approved by the Federal Drug Administration (FDA) at this time. Before the transplant, the physician will treat the bone marrow to get rid of the cancer. The physician uses three chemotherapy drugs plus ATG. The chemotherapy drugs (Busulfan, Melphalan and Fludarabine) kills the cancer. ATG gets rid of any of the patients T cells that survive the chemotherapy. This ensures that the donor stem cells are not rejected. The patient will also receive additional white blood cells called lymphocytes from the donor. This is called a donor lymphocyte infusion or DLI. These additional infusions will help cause a graft-versus-myeloma effect and can help the donor stem cells grow.

Interventions

DRUGbusulfan, melphalan and fludarabine

Patients will be cytoreduced with IV busulfan, melphalan and fludarabine. Busulfan will be administered at a dose of 0.8mg/Kg q6hrs for 10 doses on days -9, -8, -7. Doses for busulfan should be adjusted according to pharmacokinetic studies. Melphalan will be administered at a dose of 70 mg/m2/day for 2 days on days -7, -6. Fludarabine will be administered at a dose of 25 mg/m2/day for 5 days on days -6, -5, -4, -3, -2. Patients will also receive rabbit anti-thymocyte globulin (ATG) to prevent immune mediated graft rejection. The ATG will be administered at a dose of 2.5 mg/Kg/day IV on days -3 and -2. Doses for busulfan, melphalan and ATG should be adjusted if patient is \> 125% ideal body weight and should be calculated on adjusted ideal body weight.

Sponsors

Otsuka America Pharmaceutical
CollaboratorINDUSTRY
Ludwig Institute for Cancer Research
CollaboratorOTHER
Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
21 Years to 72 Years
Healthy volunteers
No

Inclusion criteria

* Patient must have multiple myeloma that has either relapsed or has high risk cytogenetics. * Patients with relapsed multiple myeloma following autologous stem cell transplantation must have achieved at least partial response following additional chemotherapy (cohort 1): * Patients are eligible if relapse occurs with complex/high-risk cytogenetics or occurs with normal cytogenetics but within 15 months following the autologous transplant. * Patients with high risk cytogenetics at diagnosis must have achieved at least very good partial response following autologous stem cell transplantation (cohort 2): * Patients must have complex karyotype, 1q25, del17p, t4;14 and/or t14;16 by FISH and/or del13 by karyotyping. DONOR: Patients must have a healthy HLA matched or mismatched related or unrelated donor who is willing to receive G-CSF injections and undergo apheresis for PBSC collection, or undergo a marrow harvesting procedure. 1. HLA-matched related and unrelated donors Patients who have an HLA-matched related or unrelated donor are eligible for entry on this protocol. This will include a healthy donor who is genotypically matched at all A, B, C, DRB1 and DQB1 locus, loci, as tested by DNA analysis. 2. HLA- mismatched related and unrelated donors Patients who do not have an HLA-matched donor but have a related or unrelated donor who have one antigen or one allele mismatch at the HLA A, B, C, DRB1 or DQB1 loci; or who have two mismatches, at HLA-DQB1 and at one other locus, will be eligible for entry on this protocol. The following inclusion criteria are also required: * Patients should be ≥ 21, \< 73 years old. * Patients may be of either gender or any ethnic background. * Patients must have a Karnofsky (adult) or Performance Status ≥ 70% * Patients must have adequate organ function measured by: Cardiac: asymptomatic or if symptomatic then LVEF at rest must be ≥ 50% and must improve with exercise. Hepatic: \< 3x ULN ALT and ≤ 1.5 total serum bilirubin, unless there is congenital benign hyperbilirubinemia. Renal: serum creatinine \<1.2 mg/dl or if serum creatinine is outside the normal range, then CrCl \> 40 ml/min (measured or calculated/estimated) with dose adjustment of Fludarabine for \<70ml/min. Pulmonary: asymptomatic or if symptomatic, DLCO \> 50% of predicted (corrected for hemoglobin) * Each patient must be willing to participate as a research subject and must sign an informed consent form.

Exclusion criteria

* Patients achieving \< Partial Response following preceding chemotherapy (cohort 1) or \< Very Good Partial Response following autologous stem cell transplantation (cohort 2). * Patients with Plasma Cell Leukemia. * Female patients who are pregnant or breast-feeding * Active viral, bacterial or fungal infection * Patient seropositive for HIV-I/II; HTLV -I/II * Patients who have undergone prior allogeneic hematopoietic stem cell transplantation. * Patients who have had a previous malignancy that is not in remission. * Patients with known hypersensitivity to mouse proteins (murine antibodies in ISOLEX) if receiving SBA-E- bone marrow, or chicken egg products.

Design outcomes

Primary

MeasureTime frame
Proportion of Participants With Relapsed Multiple Myeloma With Progression-free (PFS)2 years

Secondary

MeasureTime frameDescription
Proportion of Participants With Relapsed Multiple Myeloma Alive at 2 Years2 years
Number of Participants Who Relapse That Are Restored to Remission (CR)3 yearsTo compute the current multiple myeloma free survival curve in order to account for patients who relapse and are restored to remission through DLI.

Countries

United States

Participant flow

Participants by arm

ArmCount
Relapsed Multiple Myeloma
This is a two arm phase II trial to assess the progression-free and overall survival as well as the safety and efficacy of allogeneic hematopoietic stem cell transplantation using a preparative regimen with busulfan, melphalan, fludarabine, and anti-thymocyte globulin (ATG), and a T cell depleted stem cell transplant from a histocompatible related or unrelated donor in patients with relapsed or high-risk multiple myeloma
47
High-risk Multiple Myeloma
This is a two arm phase II trial to assess the progression-free and overall survival as well as the safety and efficacy of allogeneic hematopoietic stem cell transplantation using a preparative regimen with busulfan, melphalan, fludarabine, and anti-thymocyte globulin (ATG), and a T cell depleted stem cell transplant from a histocompatible related or unrelated donor in patients with relapsed or high-risk multiple myeloma.
19
Total66

Baseline characteristics

CharacteristicRelapsed Multiple MyelomaTotalHigh-risk Multiple Myeloma
Age, Continuous55.3 years54 years49.5 years
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants7 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
42 Participants59 Participants17 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
4 Participants4 Participants0 Participants
Race (NIH/OMB)
Black or African American
8 Participants10 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
White
34 Participants51 Participants17 Participants
Region of Enrollment
Turkey
1 participants1 participants0 participants
Region of Enrollment
United States
46 participants65 participants19 participants
Sex: Female, Male
Female
12 Participants17 Participants5 Participants
Sex: Female, Male
Male
35 Participants49 Participants14 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
17 / 479 / 19
other
Total, other adverse events
47 / 4719 / 19
serious
Total, serious adverse events
29 / 4711 / 19

Outcome results

Primary

Proportion of Participants With Relapsed Multiple Myeloma With Progression-free (PFS)

Time frame: 2 years

Population: This objective only applies to Arm I: Participants with Relapsed Multiple Myeloma

ArmMeasureValue (NUMBER)
Relapsed Multiple MyelomaProportion of Participants With Relapsed Multiple Myeloma With Progression-free (PFS)0.31 Proportion of participants PFS
Secondary

Number of Participants Who Relapse That Are Restored to Remission (CR)

To compute the current multiple myeloma free survival curve in order to account for patients who relapse and are restored to remission through DLI.

Time frame: 3 years

Population: This group consists of participants with residual disease either because they did not reach CR from salvage and transplant conditioning or because they were given this dose at the time of progression

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Relapsed Multiple MyelomaNumber of Participants Who Relapse That Are Restored to Remission (CR)Restored to CR, did not develop GVHD4 Participants
Relapsed Multiple MyelomaNumber of Participants Who Relapse That Are Restored to Remission (CR)Were not restored to CR, did not develop GVHD14 Participants
Secondary

Proportion of Participants With Relapsed Multiple Myeloma Alive at 2 Years

Time frame: 2 years

Population: This objective is only for participants with relapsed multiple myeloma.

ArmMeasureValue (NUMBER)
Relapsed Multiple MyelomaProportion of Participants With Relapsed Multiple Myeloma Alive at 2 Years0.54 Proportion of pts alive at 2 years

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