Inclusion Criteria:

1. Patients must have the diagnosis of active MM requiring treatment. Patients with a
previous history of smoldering myeloma will be eligible if there is evidence of
progressive disease requiring chemotherapy.

2. Protein criteria must be present (quantifiable M-component of IgG, IgA, IgD, or IgE
and/or urinary kappa or lambda light chain, Bence-Jones protein, or Free Kappa Light
Chain or Free Lambda Light Chain) in order to evaluate response. Non-secretory
patients are eligible provided the patient has > 20% plasmacytosis OR multiple (>3)
focal plasmacytomas or focal lesions on MRI.

3. Patients must have received no more than 12 months of prior chemotherapy for this
disease. Patients may have received prior radiotherapy provided approval has been
obtained by the Principal Investigator.

4. Patients must be 18-75 years of age at the time of initial registration.

5. Ejection fraction by ECHO or MUGA ≥ 40% performed within 60 days prior to
registration.

6. Patients must have adequate pulmonary function studies > 50% of predicted on
mechanical aspects (FEV1, FVC) and diffusion capacity (DLCO) > 50% of predicted,
within 60 days of registration. If the patient is unable to complete pulmonary
function tests due to MM related pain or condition, exception may be granted if the
principal investigator documents that the patient is a candidate for high dose
therapy.

7. Patients must have a creatinine < 3 mg/dl and a creatinine clearance >30mL/min

8. Patients must have a performance status of 0-2 based on SWOG criteria. Patients with
a poor performance status (3-4), based solely on bone pain will be eligible.

9. All patients must be informed of the investigational nature of this study and must
have signed an IRB-approved informed consent in accordance with institutional and
federal guidelines.

Exclusion Criteria:

1. Platelet count < 30 x 109/L, unless myeloma-related.

2. Greater than a grade 2 peripheral neuropathy.

3. Hypersensitivity to bortezomib, boron, or mannitol.

4. Uncontrolled diabetes.

5. Recent (< 6 months) myocardial infarction, unstable angina, difficult to control
congestive heart failure, uncontrolled hypertension, or difficult to control cardiac
arrhythmias.

6. Evidence of chronic obstructive or chronic restrictive pulmonary disease.

7. Patients must not have light chain deposition disease-related renal failure or
creatinine > 3 mg/dl.

8. Patients must not have prior malignancy, except for adequately treated basal cell or
squamous cell skin cancer, in situ cervical cancer, or other cancer for which the
patient has not received treatment for one year prior to enrollment. Other cancers
will only be acceptable if the patient's life expectancy exceeds five years.

9. Patients must not have significant co-morbid medical conditions or uncontrolled life
threatening infection.

10. Pregnant or nursing women. Women of child-bearing potential must have a negative
pregnancy test documented within one week of registration. Women and men of
reproductive potential may not participate unless they have agreed to use an
effective contraceptive method.