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Bortezomib, Total Marrow Irradiation, Fludarabine Phosphate, and Melphalan in Treating Patients Undergoing Donor Peripheral Blood Stem Cell Transplant For High-Risk Stage I or II Multiple Myeloma

2014-07-10 14:01:21 | BioPortfolio

Summary

RATIONALE: Bortezomib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving chemotherapy drugs, such as fludarabine phosphate and melphalan, and total marrow irradiation before a donor peripheral blood stem cell transplant helps stop the growth of cancer cells and helps stop the patient's immune system from rejecting the donor's stem cells. When the healthy stem cells from a donor are infused into the patient they may help the patient's bone marrow make stem cells, red blood cells, white blood cells, and platelets.

PURPOSE: This phase I trial is studying the side effects and best dose of bortezomib when given together with fludarabine phosphate and melphalan with or without total marrow irradiation in treating patients undergoing donor peripheral blood stem cell transplant for high-risk stage I or II multiple myeloma.

Description

PRIMARY OBJECTIVES:

I. To determine the feasibility of escalating doses of bortezomib with or without total marrow irradiation (TMI) at a fixed dose of 900 cGy in combination with fludarabine (FLU) and melphalan (MEL) as preparative regimen for allogeneic hematopoietic stem cell transplant in patients with high risk multiple myeloma who have human leukocyte antigen (HLA) matched donor (sibling or matched unrelated donor).

II. To describe toxicities, maximum tolerated dose (MTD) and dose limiting toxicities (DLT) of this preparative regimen.

SECONDARY OBJECTIVES:

I. To evaluate the frequency of clinical response, i.e., complete response [CR], partial response [PR], very good partial response [VGPR]) at 6 month and 1 year post transplant.

II. To evaluate the frequency of primary and secondary engraftment failure.

III. To evaluate the time to neutrophil and platelet engraftment.

IV. To evaluate the incidence of acute and chronic graft-versus-host disease (GVHD).

V. To evaluate progression-free survival.

VI. To evaluate overall survival.

VII. To evaluate minimal residual disease (MRD) at 6 months and 1 year post transplant by flow cytometry in the bone marrow.

OUTLINE: This is a dose-escalation study of bortezomib. Patients are assigned to 1 of 2 treatment groups. GROUP I (patients eligible for TMI): Patients receive bortezomib intravenously (IV) on days -6 and -3 and undergo TMI twice daily (BID) on days -9 to -7. Patients also receive fludarabine phosphate IV on days -9 to -5 and melphalan IV on day -4. GROUP II (patients ineligible for TMI): Patients receive bortezomib IV on days -6, -3, 1, and 4. Patients also receive fludarabine phosphate IV and melphalan IV as in Group I.

TRANSPLANT: All patients undergo allogeneic peripheral blood stem cell (PBSC) transplant on day 0.

GVHD PROPHYLAXIS: All patients receive tacrolimus IV or orally (PO) and sirolimus PO beginning on day -3.

After completion of study treatment, patients are followed up at day 100, 6 months, and then annually thereafter.

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Refractory Multiple Myeloma

Intervention

bortezomib, fludarabine phosphate, melphalan, total marrow irradiation, tacrolimus, sirolimus, peripheral blood stem cell transplantation, laboratory biomarker analysis

Location

City of Hope
Duarte
California
United States
91010

Status

Recruiting

Source

City of Hope Medical Center

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-10T14:01:21-0400

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Medical and Biotech [MESH] Definitions

An alkylating nitrogen mustard that is used as an antineoplastic in the form of the levo isomer - MELPHALAN, the racemic mixture - MERPHALAN, and the dextro isomer - MEDPHALAN; toxic to bone marrow, but little vesicant action; potential carcinogen.

A 12-KDa tacrolimus binding protein that is found associated with and may modulate the function of calcium release channels. It is a peptidyl-prolyl cis/trans isomerase which is inhibited by both tacrolimus (commonly called FK506) and SIROLIMUS.

A mixture of six synthetic oligopeptides, each containing MELPHALAN. It is used as a broad-spectrum antineoplastic due to its alkylating and antimetabolic actions but, is toxic to bone marrow, gastrointestinal system and vasculature.

Irradiation of one half or both halves of the body in the treatment of disseminated cancer or widespread metastases. It is used to treat diffuse metastases in one session as opposed to multiple fields over an extended period. The more frequent treatment modalities are upper hemibody irradiation (UHBI) or lower hemibody irradiation (LHBI). Less common is mid-body irradiation (MBI). In the treatment of both halves of the body sequentially, hemibody irradiation permits radiotherapy of the whole body with larger doses of radiation than could be accomplished with WHOLE-BODY IRRADIATION. It is sometimes called "systemic" hemibody irradiation with reference to its use in widespread cancer or metastases. (P. Rubin et al. Cancer, Vol 55, p2210, 1985)

A family of immunophilin proteins that bind to the immunosuppressive drugs TACROLIMUS (also known as FK506) and SIROLIMUS. EC 5.2.1.-

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