UARK 2003-25: A Study of Intravenous (IV) Busulfan (Busulfex®) in Multiple Myeloma Patients

Phase 1

Terminated

Brief Summary: The purpose of this study is to find out if patients with high risk disease because of age or kidney status can be treated more safely with a drug called Busulfex® followed by autologous transplant compared to treatment with the standard drug called melphalan, which has been shown to be quite difficult to tolerate in patients with poor kidney function and patients over the age of 65 when given in high doses.

Detailed Description: This trial will determine the maximal dose of Busulfex® that can be given in a two, three, or four day period with acceptable toxicity to myeloma patients, who either are \> or = 65 years of age or have renal insufficiency, defined as creatinine \> 3g/dL or creatinine clearance \< 30 ml/min.

Recruitment & Eligibility

Inclusion Criteria

Patients must have symptomatic multiple myeloma requiring treatment
Patients must have been approved for single or tandem autologous transplant
Patients must be > or = 65 years of age or diagnosed with renal insufficiency, defined as having a creatinine > 3 mg/dl or a creatinine clearance < 30 ml/minute
Patients must not have a history of chronic obstructive or chronic restrictive pulmonary disease. Patients must have adequate pulmonary function studies > 50% of predicted on mechanical aspects (FEV1, FVC, etc) and diffusion capacity (DLCO) > 50% of predicted,
Patients must have an ECHO or MUGA performed within 60 days prior to registration, LVEF > 40%.
Bilirubin, SGOT, SGPT must be less than 1.5 times the upper limit of normal
Patients must have evaluable myeloma marker for response such as: *Serum M protein >1g/dl or urine M protein >1g/24 hours and/or; *Bone marrow plasmacytosis with >20% plasma cells and/or; *Extramedullary plasmacytosis; *MRI/PET scan has focal lesions due to myeloma.
Patients must be able to receive full doses of DT-PACE, in the opinion of the treating investigator, with the exception of cisplatin.
Patients must have a performance status of 0-2 based on SWOG criteria unless the patient's status is due to active myeloma
All patients must be informed of the investigational nature of the study and have signed an IRB-approved informed consent in accordance with institutional and federal guidelines.

Exclusion Criteria

Serum transaminases > 1.5 x ULN and direct bilirubin > 1.5 mg/dl
HIV positive or active Hepatitis B or Hepatitis C infection; (if serology is positive a quantitative PCR will be done).
Patients with a prior malignancy in whom life expectancy is more likely to be determined by the prior malignancy than the myeloma. Patients must not currently be receiving therapy for the prior malignancy.
Pregnant or nursing women. Women of childbearing potential must have a negative pregnancy test documented within one week of registration. Women/men of reproductive potential may not participate unless they have agreed to use an effective contraceptive method.

Arm && Interventions

Group	Intervention	Description
Busulfan	Busulfan	study-specific treatment: Busulfex according to study design: Level I 3.2 mg/kg over 6 hours x 2 days Level II 3.2 mg/kg over 6 hours x 3 days Level III 3.2 mg/kg over 6 hours x 4 days Level IV 4.3 mg/kg over 6 hours x 3 days Level V 5.6 mg/kg over 6 hours x 2 days Level VI 6.4 mg/kg over 6 hours x 2 days

Primary Outcome Measures

Name	Time	Method
Maximal Dose of Busulfex® Given in a 2, 3, or 4 Day Period With Acceptable Toxicity to Myeloma Patients	three years	maximal dose of Busulfex® that can be given in a two, three, or four day period with acceptable toxicity to myeloma patients, who either are \> or = 65 years of age or have renal insufficiency, defined as creatinine \> 3g/dL or creatinine clearance \< 30 ml/min

Secondary Outcome Measures

Name	Time	Method

Locations (2): University of Arkansas for Medical Sciences
🇺🇸
Little Rock, Arkansas, United States
University of Arkansas for Medical Sciences, Myeloma Institute for Research and Therapy
🇺🇸
Little Rock, Arkansas, United States