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Busulfan, Cyclophosphamide, and Autologous Stem Cell Transplant in Treating Patients With Multiple Myeloma

A Study of Outcomes and Toxicity of Busulfex as Part of a High Dose Chemotherapy Preparative Regimen in Autologous Hematopoietic Stem Cell Transplantation for Patients With Plasma Cell Myeloma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00941720
Enrollment
71
Registered
2009-07-20
Start date
2009-06-11
Completion date
2013-02-28
Last updated
2020-07-24

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

Conditions

Multiple Myeloma and Plasma Cell Neoplasm

Keywords

stage I multiple myeloma, stage II multiple myeloma, stage III multiple myeloma

Brief summary

RATIONALE: Giving high-dose chemotherapy before an autologous stem cell transplant stops the growth of cancer cells by stopping them from dividing or killing them. An autologous stem cell transplant may be able to replace the blood-forming cells that were destroyed by the chemotherapy. PURPOSE: This phase II trial is studying how well giving busulfan together with cyclophosphamide followed by an autologous stem cell transplant works in treating patients with multiple myeloma.

Detailed description

OBJECTIVES: Primary * To compare relapse-free survival and overall survival of patients with multiple myeloma treated with IV busulfan vs historical control patients treated with oral busulfan when administered with cyclophosphamide as a conditioning regimen prior to autologous hematopoietic stem cell transplantation. Secondary * To compare pulmonary toxicity rates of IV busulfan vs oral busulfan when administered with cyclophosphamide as a conditioning regimen prior to autologous hematopoietic stem cell transplantation. OUTLINE: Patients receive high-dose busulfan IV every 6 hours on days -8 to -4 and high-dose cyclophosphamide IV over 4 hours on days -3 and -2. Patients undergo autologous hematopoietic stem cell transplantation on day 0. After completion of study treatment, patients are followed up periodically.

Interventions

DRUGbusulfan

IV busulfan 0.8 mg/kg every 6 hours x 16 doses

DRUGcyclophosphamide

IV cyclophosphamide 60 mg/kg over 4 hours x 2 days

PROCEDUREautologous hematopoietic stem cell transplantation

infusion of autologous hematopoietic stem cells of at least 2.0 x 106 CD34+ cells/kg on day 0

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Case Comprehensive 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 No maximum
Healthy volunteers
No

Inclusion criteria

* Patients with a diagnosis of plasma cell myeloma * Patients with cardiac ejection fraction \>= 45% or clearance by Cleveland Clinic Faculty (CCF) cardiologist * Patients with diffusion capacity of carbon monoxide (DLCO) \>= 45% predicted or clearance by CCF pulmonologist * Patient with previously harvested peripheral blood progenitor cells with a minimum of 2 x 10\^6 CD 34+ cells/kg harvested

Exclusion criteria

* Patients receiving total body irradiation * Non-myeloablative/reduced-intensity conditioning * Pregnant and breast feeding patients * Human immunodeficiency virus (HIV) positive * Patients with serum creatinine \> 2.0 * Prior Hematopoietic Stem Cell (HSC) transplant

Design outcomes

Primary

MeasureTime frameDescription
Relapse-free Survivalat 6 monthsNumber of participants without progressive disease at the end of the study period, using the definitions for complete response, partial response and progressive disease from the International Myeloma Working Group .
Overall Survivalat 6 monthsNumber of patients alive at the end of the study period

Secondary

MeasureTime frameDescription
Pulmonary ToxicityAt 6 monthsToxicity criteria will be assessed and graded according to the National Cancer Institute (NCI) Common Terminology Criteria (CTC) v3.0. Estimated using exact 95% binomial confidence intervals.

Countries

United States

Participant flow

Participants by arm

ArmCount
Busulfan Treatment
busulfan: IV busulfan 0.8 mg/kg every 6 hours x 16 doses cyclophosphamide: IV cyclophosphamide 60 mg/kg over 4 hours x 2 days autologous hematopoietic stem cell transplantation: infusion of autologous hematopoietic stem cells of at least 2.0 x 106 CD34+ cells/kg on day 0
57
Total57

Withdrawals & dropouts

PeriodReasonFG000
Overall Studyineligible2
Overall StudyInsurance denied participation11
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicBusulfan Treatment
Age, Continuous58 years
STANDARD_DEVIATION 8
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
57 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
9 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
47 Participants
Region of Enrollment
United States
57 participants
Sex: Female, Male
Female
24 Participants
Sex: Female, Male
Male
33 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
5 / 57
serious
Total, serious adverse events
12 / 57

Outcome results

Primary

Overall Survival

Number of patients alive at the end of the study period

Time frame: at 6 months

ArmMeasureValue (NUMBER)
Busulfan TreatmentOverall Survival53 participants
Primary

Relapse-free Survival

Number of participants without progressive disease at the end of the study period, using the definitions for complete response, partial response and progressive disease from the International Myeloma Working Group .

Time frame: at 6 months

ArmMeasureValue (NUMBER)
Busulfan TreatmentRelapse-free Survival48 participants
Secondary

Pulmonary Toxicity

Toxicity criteria will be assessed and graded according to the National Cancer Institute (NCI) Common Terminology Criteria (CTC) v3.0. Estimated using exact 95% binomial confidence intervals.

Time frame: At 6 months

ArmMeasureValue (NUMBER)
Busulfan TreatmentPulmonary Toxicity3.5 percentage of participants

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