Clinical Trial: Bendamustine Hydrochloride, Etoposide, Dexamethasone, and Filgrastim For Peripheral Blood Stem Cell Mobilization in Treating Patients With Refractory or Recurrent Lymphoma or Multiple Myeloma

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Phase II Study of Bendamustine (B), Etoposide (E), Dexamethasone (D), and GCSF for Peripheral Blood Hematopoietic Stem Cell Mobilization (BED)

Brief Summary: This phase II trial is studying how well giving bendamustine hydrochloride, etoposide, dexamethasone, and filgrastim together for peripheral stem cell mobilization works in treating patients with refractory or recurrent lymphoma or multiple myeloma. Giving chemotherapy, such as bendamustine hydrochloride, etoposide, and dexamethasone, before a peripheral stem cell transplant stops the growth of cancer cells by stopping them from dividing or killing them. Giving colony-stimulating factors, such as filgrastim, and certain chemotherapy drugs helps stem cells move from the bone marrow to the blood so they can be collected and stored

Detailed Summary:

PRIMARY OBJECTIVES:

I. To estimate the frequency of bendamustine (bendamustine hydrochloride) combined with GCSF (filgrastim) and dexamethasone to successfully mobilize peripheral blood stem cells (PBSCs) (as determined by collecting a minimum of 2 x 10^6 cluster of differentiation (CD)34+/kg).

SECONDARY OBJECTIVES:

I. To evaluate the response rate to bendamustine by diagnosis using established disease-specific response criteria.

II. To examine the number of apheresis cycles required to collect a minimum of 2 x 10^6 CD34+ cells/kg and ideally >= 5 x 10^6 CD34+ cells/kg (when achievable).

III. To assess the impact of bendamustine on B and T-lymphocyte populations in the peripheral blood (CD20+ cells, natural killer [NK] cells, CD4+25+ foxP3- regulatory cells, and CD8 cells).

OUTLINE:

Patients receive bendamustine hydrochloride intravenously (IV) over 30-60 minutes on days 1 and 2, etoposide IV over 60-240 minutes on days 1-3, dexamethasone orally (PO) on days 1-4, and filgrastim subcutaneously (SC) beginning on day 5 and continuing until peripheral blood stem cell collection is complete. Patients undergo leukapheresis daily for a minimum of 3 days or until > 5 x 10^6 CD34+/kg has been collected.

After completion of study treatment, patients are followed for up to 5 years.


Sponsor: University of Washington

Current Primary Outcome: Successful mobilization and collection of PBSCs [ Time Frame: Within 7 days of apheresis and within 6 weeks of receiving bendamustine hydrochloride ]

Defined as collection of > 2 x 10^6 CD34/kg. The current study will be deemed to be potentially efficacious if the observed rate of success is at least 80%.


Original Primary Outcome: Successful mobilization and collection of PBSCs, as defined by a collection of at least 2 x 10^6 CD34+/kg [ Time Frame: 6 weeks post PBSC collection ]

Current Secondary Outcome:

Original Secondary Outcome:

Information By: University of Washington

Dates:
Date Received: April 20, 2010
Date Started: August 2010
Date Completion:
Last Updated: March 8, 2016
Last Verified: March 2016