Bortezomib, Melphalan, and Total-Body Irradiation Before Stem Cell Transplant in Treating Patients With Multiple Myeloma

Refractory Plasma Cell Myeloma Clinical Trial

Official title: Phase I/II Bortezomib, Melphalan and Low Dose TBI Conditioning for Patients Undergoing Autologous Stem Cell Transplantation for Multiple Myeloma

Status Completed

Clinical Trial Summary

This phase I/II trial studies the side effects and best dose of bortezomib when given together with melphalan, and total-body irradiation before stem cell transplant and to see how well it works in treating patients with multiple myeloma. Giving chemotherapy and total-body irradiation before a stem cell transplant stops the growth of cancer cells by stopping them from dividing or killing them. The stem cells that were collected from the patient's blood or bone marrow are returned to the patient to replace the blood-forming cells that were destroyed by the chemotherapy and total-body irradiation.

Clinical Trial Description

PRIMARY OBJECTIVES:

I. To determine the maximum tolerated dose (MTD) of bortezomib that can be added to high dose melphalan and low dose total body irradiation as part of conditioning chemotherapy for myeloma. (Phase I) II. To determine the efficacy of the bortezomib added to high dose melphalan and low dose total-body irradiation (TBI) in patients with myeloma undergoing stem cell transplantation, as defined by achievement of complete response (CR). (Phase II)

SECONDARY OBJECTIVES:

I. To examine the toxicities associated with addition of bortezomib to high dose melphalan and TBI in patients with multiple myeloma (MM).

II. To determine the progression free rate at 1 and 2 years.

TERTIARY OBJECTIVES:

I. To determine the proportion of patients achieving a minimal residual disease (MRD) negative status.

II. To assess the HevyLite assay prior to and during treatment.

OUTLINE: This is a phase I, dose-escalation study of bortezomib followed by a phase II study.

CONDITIONING REGIMEN: Patients receive bortezomib intravenously (IV) on days -5 and -2, TBI twice daily (BID) on days -5 and -2, and melphalan IV over 1 hour on days -4 and -3.

TRANSPLANT: Patients undergo autologous bone marrow or peripheral blood stem cell transplant on day 0.

After completion of study treatment, patients are followed up at 100 days and then every 90 days for up to 3 years. ;

Related Conditions & MeSH terms

• DS Stage I Plasma Cell Myeloma
• DS Stage II Plasma Cell Myeloma
• DS Stage III Plasma Cell Myeloma
• Multiple Myeloma
• Neoplasms, Plasma Cell
• Refractory Plasma Cell Myeloma

• NCT number: NCT01936090
• Study type: Interventional
• Source: Mayo Clinic
• Status: Completed
• Phase: Phase 1
• Start date: August 2013
• Completion date: February 16, 2018