Prognostic Potential of Cell Surface Markers and Pim Kinases in Multiple Myeloma
The purpose of this study is to understand if small proteins found on the surface of myeloma cells (called CXCR4 and CD47) or inside the myeloma cells (Pim kinases, sphingolipids, and pS6) can predict how patients will respond to chemotherapy-treatment and if a small molecule inside the myeloma cells (called Pim kinase) can be used as a treatment target for myeloma. A sample from the bone marrow biopsy (a small amount of tissue removed from the body for laboratory testing) and aspirate (a small amount of fluid is removed from the body for laboratory testing) that had been done before the subject entered this study will be provided for research purposes. Based on preliminary data, it is hypothesized that CXCR4, CD47, sphingolipids, and Pim kinases could be used as prognostic/predictive markers and that Pim kinase inhibitors provide a new agent for the treatment of multiple myeloma.
|Study Design:||Observational Model: Cohort
Time Perspective: Prospective
|Official Title:||Prognostic Potential of Cell Surface Markers and Pim Kinases in Multiple Myeloma|
- Measure the expression levels of CXCR4, CD47, and pS6 by flow cytometry in myeloma patient's marrow aspirate [ Time Frame: 3 years ] [ Designated as safety issue: No ]Our Aim 1 is to perform a corrective study to measure the expression levels of CXCR4, CD47, and pS6 by flow cytometry in myeloma patient's marrow aspirate and correlate their expression level with patients' treatment responses
- Determine if Pim kinase inhibitors or sphingosine kinase 2 inhibitors will inhibit patients' myeloma cells [ Time Frame: 3 years ] [ Designated as safety issue: No ]Our aim 2 involves only in vitro cell culture system and in vivo animal models. We will measure the efficacy of Pim kinase inhibitors in inhibiting patients' myeloma cell growth in vitro using cell culture system. We will also determine the efficacy of Pim kinase inhibitors and sphingosine kinase 2 inhibitors in inhibiting tumor growth of patients' myeloma cells in animal models. We will measure the tumor size in animal models. Our Aim 2 does not involve any measurement of human myeloma patients. Therefore, measures of safety, tolerability etc in patients are not applicable.
Biospecimen Retention: Samples With DNA
The patients will not have bone marrow biopsy or aspirate solely for this study. When the patients undergo routine bone marrow aspirate and biopsy for the purpose of initial diagnosis, followup or restaging, they will be asked and consented for participation in the study. The patient will then be treated with standard chemotherapy including Bortezomib-based, Revlimid-based, Thalidomide-based chemoregimen. The bone marrow aspirate from patients who consent to be in the study will be stained for CXCR4, CD47, pS6, in addition to standard study flow cytometry panel for multiple myeloma. The staining and flow cytometry analysis will be performed at the Clinical Flow Cytometry Facility (Director: Dr. Sally Self) according to the standard flow cytometry procedure. Sphingolipid gene expression levels will be measured. A small aliquot may be sent to collaborators in Genentech Corp for measurement of pS6 and Pim kinase expression. The sample information will be de-identified.
|Study Start Date:||July 2011|
|Estimated Primary Completion Date:||July 2014 (Final data collection date for primary outcome measure)|
Multiple Myeloma subjects with bone marrow aspirate/biopsy
All patients seen at MUSC with a diagnosis of multiple myeloma or possible multiple myeloma who undergo bone marrow aspirate and biopsy will be approached for participation in this study.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01410981
|Contact: Shanta Salzerfirstname.lastname@example.org|
|Contact: Yubin Kang, MDemail@example.com|
|United States, South Carolina|
|Medical University of South Carolina||Recruiting|
|Charleston, South Carolina, United States, 29425|
|Contact: Shanta Salzer 843-792-1463 firstname.lastname@example.org|
|Contact: Yubin Kang, MD 843-792-6520 email@example.com|
|Principal Investigator: Yubin Kang, MD|