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High-Dose Gemcitabine, Busulfan and Melphalan With Hematopoietic-Cell Support for Patients With Poor-Risk Myeloma

High-dose Gemcitabine, Busulfan and Melphalan With Autologous Hematopoietic-Cell Support for Patients With Poor-Risk Myeloma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01237951
Enrollment
75
Registered
2010-11-10
Start date
2010-11-08
Completion date
2017-09-20
Last updated
2020-05-05

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

Conditions

Myeloma

Keywords

Autologous Hematopoietic-Cell Support, Stem Cell Transplant, Busulfan, Myleran, Busulfex, Gemcitabine, Gemzar, Melphalan, Alkeran, Decadron, Dexamethasone, G-CSF, Filgrastim, Neupogen

Brief summary

The goal of this clinical research study is to learn if the combination of gemcitabine, busulfan, and melphalan, when given before a stem cell transplant, can help to control refractory myeloma. The safety of this study treatment will also be studied.

Detailed description

Study Drugs: Busulfan and melphalan are designed to bind to the DNA (genetic material) of cells, which may cause cancer cells to die. They are commonly used in stem cell transplantation. Gemcitabine is designed to disrupt the growth of cancer cells, which may cause cancer cells to die. It may help to increase the effect of busulfan and melphalan on cancer cells by not allowing these cells to repair the DNA damage caused by busulfan or melphalan. Busulfan Test Dose: You will receive a test dose of busulfan by vein over about 60 minutes. This low-level test dose of busulfan is to check how the level of busulfan in your blood levels changes over time. This information will be used to decide the next dose needed to reach the target blood level that matches your body size. You will most likely receive this as an outpatient during the week before you are admitted to the hospital. If it cannot be given as an outpatient, you will be admitted to the hospital on Day -11 (11 days before your stem cells are returned to your body) and the test dose will be given on Day -10. About 11 samples of blood (about 1 teaspoon each time) will be drawn for pharmacokinetic (PK) testing. PK testing measures the amount of study drug in the body at different time points and will help the study doctor determine what your dose of busulfan should be on study. These blood samples will be drawn at various timepoints before you receive busulfan and over about the next 11 hours. The blood samples will be repeated again on the first day of high-dose busulfan treatment Day -8. A temporary heparin lock line will be placed in your vein to lower the number of needle sticks needed for these draws. If it is not possible for the PK tests to be performed, you will receive the standard dose of busulfan. If you receive the busulfan test dose as an outpatient: On Days -12 (12 days before your stem cells are returned to your body) through Day -10, you will receive palifermin by vein over about 30 seconds to help decrease the risk of side effects in the mouth and throat. You will be admitted on Day -9 and will receive fluids by vein to hydrate you. You will swish the liquids caphosol and glutamine in your mouth 4 times a day, for about 2 minutes each time. You will swish these liquids every day until you leave the hospital. These drugs are also used to help decrease the risk of side effects in the mouth and throat. On Days -8 through -5, you will receive busulfan by vein over about 3 hours. On Days -8 and -3, you will receive gemcitabine by vein over about 3 hours. On Day -4, you will not receive any drugs. If you receive the busulfan test dose as an inpatient: On Days -13 through Day -11, you will receive palifermin by vein over about 30 seconds each day to help decrease the risk of side effects in the mouth and throat. You will be admitted on Day -11 and will receive fluids by vein to hydrate you. You will swish the liquids caphosol and glutamine in your mouth 4 times a day, for about 2 minutes each time. You will swish these liquids every day until you leave the hospital. These drugs are also used to help decrease the risk of side effects in the mouth and throat. On Day -10, you will receive the busulfan test dose by vein over 45 minutes. On Day -9, you will not receive any drugs. On Days -8 and -3, you will receive gemcitabine by vein over about 3 hours on both days. On Days -8 through -5, you will receive busulfan by vein over about 3 hours each day. Study Drug Administration (for all patients): On Days -9 through -2, you will receive dexamethasone by vein over about 15 minutes to help decrease the risk of the possible side effects of the study drugs. On Days -3 and -2, you will receive melphalan by vein over about 30 minutes on both days. On Day -1, you will not receive any drugs. On Day 0, your stem cells will be returned to your body by vein over 30-60 minutes. On Days 0 through 2, you will receive palifermin by vein over about 30 seconds each day. Beginning on Day 5, you will receive filgrastim (a drug that helps with the growth of white blood cells) through a needle under your skin 1 time each day until your blood cell levels return to normal. Study Tests: While you are in the hospital, you will be checked for any side effects as part of your standard of care. Blood (about 2 teaspoons) will be drawn every day to check for side effects. As part of standard care, you will remain in the hospital for about 3-4 weeks after the transplant. After you are released from the hospital, you must remain in the Houston area to be monitored for infections and other transplant side effects until about Day 30. During this time, you will return to the clinic 1 time each week and the following tests and procedures will be performed: * You will be asked about how you are feeling and about any side effects you may be having. * Blood (about 2 teaspoons) will be drawn for routine tests. * You will have a lung function test about 30-100 days after the transplant. Length of Study: You will be followed as part as the study for at least 2 years. You may be taken off study early if the disease gets worse or you experience any intolerable side effects. At each follow-up visit the following tests and procedures will be performed: * Your medical history will be recorded. * You will have a physical exam. * Blood (about 2 teaspoons) and urine will be collected for routine tests. * If your doctor thinks it is needed, you will have a bone marrow biopsy to check the status of the disease. * Bone survey: Only once a year. You must talk to the study doctor if you want to leave the study early. It may be life-threatening to leave the study after you have begun to receive the study drugs but before you receive the stem cells. This is an investigational study. Busulfan, gemcitabine, and melphalan are all FDA approved and commercially available for the treatment of lymphoma, myeloma, and several other tumors. The use of these study drugs together and the use of gemcitabine at the dose level used in this study is investigational. Up to 75 patients will take part in this study. All will be enrolled at MD Anderson.

Interventions

DRUGPalifermin

60 micrograms/kg infused as an IVP (by vein) over 15-30 seconds Days -12 to -10 and Days 0 to +2 as an outpatient. 60 micrograms/kg by vein on Days -13 to -11 and on Days 0, +1 and +2 as in inpatient.

DRUGDexamethasone

8 mg IV twice a day by vein over 15 minutes Days -9 through -2 as an outpatient or inpatient.

DRUGGemcitabine

1875 mg/m\^2 IV (75 mg/ m2 bolus followed by 1800 mg/m\^2 over 3 hours) on Day -8 and Day -3 as an outpatient or inpatient.

DRUGBusulfan

32 mg/m2 test dose with PKs as outpatient before Day -12, or as an inpatient on Day -10. Busulfan AUC 4,000 by vein on Days -8 to -5 as an outpatient or inpatient.

DRUGMelphalan

60 mg/m\^2 IV on Days -3 and -2 over 30 minutes on both days as an outpatient or inpatient.

PROCEDUREStem Cell Transplant

On Day 0, stem cells returned to body by vein over 30-60 minutes.

DRUGG-CSF

5 mcg/kg/day subcutaneously beginning on Day +5 and continuing until neutrophil recovery is documented.

Sponsors

M.D. Anderson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. Age 18 to 70 years. 2. Patients with myeloma treated with first-line therapy including lenalidomide, bortezomib or thalidomide, and one or more of the following: 2.1) M paraprotein greater than 1 g/dL at HDC. 2.2) Less than partial response to first-line therapy. 2.3) Relapse after first-line therapy. 2.4) Relapse after a prior autologous stem-cell transplant. 3. Adequate renal function, as defined by serum creatinine \</=1.8 mg/dL and/or estimated serum creatinine clearance \>/=50 ml/min 4. Adequate hepatic function, as defined by serum glutamate oxaloacetate transaminase (SGOT) and/or serum glutamate pyruvate transaminase (SGPT) \</=3 x upper limit of normal; serum bilirubin and alkaline phosphatase \</=2 x upper limit of normal, unless proven to be due to disease involvement. 5. Adequate pulmonary function with forced expiratory volume at one second (FEV1), forced vital capacity (FVC) and diffusing capacity of lung for carbon monoxide (DLCO) \>/=50% of expected corrected for hemoglobin and/or volume. 6. Adequate cardiac function with left ventricular ejection fraction \>/=40%. No uncontrolled arrhythmias or symptomatic cardiac disease. 7. Zubrod performance status \<2. 8. Negative Beta human chorionic gonadotropin (HCG) text in a woman with child-bearing potential, defined as not post-menopausal for 12 months or no previous surgical sterilization

Exclusion criteria

1. Patients with grade \>/= 3 non-hematologic toxicity from previous therapy that has not resolved to \</= grade 1. 2. Patients with prior whole brain irradiation 3. Patients with active hepatitis B, either active carrier (HBsAg +) or viremic (HBV DNA \>/=10,000 copies/mL, or \>/= 2,000 IU/mL). 4. Evidence of either cirrhosis or stage 3-4 liver fibrosis in patients with chronic hepatitis C or positive hepatitis C serology. 5. Active infection requiring parenteral antibiotics. 6. HIV infection, unless the patient is receiving effective antiretroviral therapy with undetectable viral load and normal cluster of differentiation 4 (CD4) counts 7. Patients having received radiation therapy to head and neck (excluding eyes), and internal organs of chest, abdomen or pelvis in the month prior to enrollment.

Design outcomes

Primary

MeasureTime frameDescription
Participants Who Had Measurable Disease at Time of Transplant and Achieved a Stringent Complete Remission100 days post-transplantStringent complete remission was defined as negative immunofixation on the serum and urine, disappearance of any soft tissue plasmacytomas, 5% or fewer plasma cells in bone marrow, normal free light chain ratio, and the absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence.

Secondary

MeasureTime frameDescription
Progression-free Survival (PFS)From date of transplant until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years.Number of participants remain free of progression or death after ASCT
Overall SurvivalFrom date of transplant until the date of death from any cause, assessed up to 2 yearsNumber of participants from ASCT to death or last contact
Percent of Participants Dying From Treatment-Related ComplicationsFrom date of transplant until the date of death from treatment-related complications, assessed up to 2 yearsParticipants who died from treatment-related complications from the time of ASCT.

Countries

United States

Participant flow

Recruitment details

Participants were enrolled at the University of Texas MD Anderson Cancer Center. Out of 75, 1 participant died before starting the treatment.

Participants by arm

ArmCount
Gemcitabine/Busulfan/Melphalan
Patients ages 18-70 with primary refractory or relapsed myeloma, candidates for an autologous SCT (ASCT) who had previously received treatment with bortezomib, an immunomodulatory drug, or both, or who were receiving a salvage ASCT.
74
Total74

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyDeath1

Baseline characteristics

CharacteristicGemcitabine/Busulfan/Melphalan
Age, Continuous58.5 years
STANDARD_DEVIATION 5.5
Overall study group
1st SCT/salvage SCT
13 participants
Overall study group
Disease Status: Primary refractory
4 participants
Overall study group
Disease Status: Refractory relapse
11 participants
Overall study group
Disease Status: Sensitive relapse
4 participants
Overall study group
Double refractory (IMiDs + proteasome inhibitors)
11 participants
Overall study group
Extramedullary disease
1 participants
Overall study group
No. prior lines of treatment
10 participants
Overall study group
No. prior lines of treatment > 2
9 participants
Overall study group
Poor-risk cytogenetics
6 participants
Overall study group
Post-ASCT maintenance
16 participants
Overall study group
Response at ASCT: Refractory
11 participants
Overall study group
Response at ASCT: Response
8 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
16 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
0 Participants
Race (NIH/OMB)
White
55 Participants
Region of Enrollment
United States
74 Participants
Sex: Female, Male
Female
17 Participants
Sex: Female, Male
Male
57 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
5 / 75
other
Total, other adverse events
71 / 74
serious
Total, serious adverse events
31 / 74

Outcome results

Primary

Participants Who Had Measurable Disease at Time of Transplant and Achieved a Stringent Complete Remission

Stringent complete remission was defined as negative immunofixation on the serum and urine, disappearance of any soft tissue plasmacytomas, 5% or fewer plasma cells in bone marrow, normal free light chain ratio, and the absence of clonal cells in bone marrow by immunohistochemistry or immunofluorescence.

Time frame: 100 days post-transplant

Population: Only 65 participants had measurable disease at the time of ASCT.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Gemcitabine/Busulfan/MelphalanParticipants Who Had Measurable Disease at Time of Transplant and Achieved a Stringent Complete Remission16 Participants
Secondary

Overall Survival

Number of participants from ASCT to death or last contact

Time frame: From date of transplant until the date of death from any cause, assessed up to 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Gemcitabine/Busulfan/MelphalanOverall Survival49 Participants
Secondary

Percent of Participants Dying From Treatment-Related Complications

Participants who died from treatment-related complications from the time of ASCT.

Time frame: From date of transplant until the date of death from treatment-related complications, assessed up to 2 years

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Gemcitabine/Busulfan/MelphalanPercent of Participants Dying From Treatment-Related Complications4 Participants
Secondary

Progression-free Survival (PFS)

Number of participants remain free of progression or death after ASCT

Time frame: From date of transplant until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Gemcitabine/Busulfan/MelphalanProgression-free Survival (PFS)31 Participants

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026