Our preclinical studies confirmed that the combination of lenalidomide with Bortezomib targeting multiple myeloma (MM) cell in its microenvironment triggered dual apoptotic signaling. Our collaborators at the Dana Farber Cancer Institute (DFCI rapidly translated these data to a phase l/ll clinical trial of combination lenalidomide, Bortezomib and Dexamethasone (RVD) therapy in relapsed refractory MM which defined the MTD, favorable tolerability, and remarkable anti-MM activity. A phase l/ll trial of RVD in newly diagnosed MM patients showed 100% responses (^PR) even in high risk cytogenetic subgroups, including 48% CR/nCR and 74% SVGPR. These unprecedented rates and extent of response to initial therapy raise an important question regarding the role of high-dose therapy and stem cell transplantation (HDT) with RVD combination therapy. Our hypothesis is that the integration of HDT following induction with RVD combination therapy will improve outcome in MM. In this Project, we will randomize 1,000 patients to RVD versus RVD with HDT to determine whether addition of HDT improves time to progression, response, event free, and overall survival (Sp Aim la). We will determine whether known prognostic factors such as the International Staging System (a2 microglobulin and albumin), LDH, and FISH, as well as recently reported combination of ISS and FISH abnormalities, correlate with response and survival outcomes (Sp Aim lb).
In Specific Aim 2 we will evaluate whether further stringent CR definition predicts superior survival outcome. We will compare normalization of serum free light chain, immunophenotypic CR using multicolor flow cytometric immunophenotyping of MM cells in bone marrow, and molecular CR using ASO-PCR as measures to detect minimal residual disease to define stringent CR. This project will determine role of high-dose therapy In the era of novel agent therapy.

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Program Projects (P01)
Project #
5P01CA155258-04
Application #
8733614
Study Section
Special Emphasis Panel (ZCA1-RPRB-J)
Project Start
Project End
Budget Start
2014-09-01
Budget End
2015-08-31
Support Year
4
Fiscal Year
2014
Total Cost
$341,145
Indirect Cost
$87,939
Name
Dana-Farber Cancer Institute
Department
Type
DUNS #
076580745
City
Boston
State
MA
Country
United States
Zip Code
02215
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Xu, Lian; Hunter, Zachary R; Tsakmaklis, Nicholas et al. (2016) Clonal architecture of CXCR4 WHIM-like mutations in Waldenström Macroglobulinaemia. Br J Haematol 172:735-44
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