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Clinical Trial Summary

This phase I trial studies how well vismodegib after stem cell transplant works in treating patients with high-risk first remission or relapsed multiple myeloma. Vismodegib may slow the growth of cancer cells. Giving vismodegib after autologous stem cell transplant may kill more multiple myeloma cells.


Clinical Trial Description

PRIMARY OBJECTIVES:

I. To determine if GDC-0449 (vismodegib) is able to reduce myeloma cancer stem cells (CSC) when given to patients with multiple myeloma (MM) following autologous stem cell transplantation.

SECONDARY OBJECTIVES:

I. To determine whether GDC-0449 is inhibiting the hedgehog (Hh) pathway in patients with MM following autologous transplantation by measuring downstream targets of Hh using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) on plasma cells and MM CSC obtained from blood and bone marrow of patients undergoing treatment.

II. To determine whether changes in MM CSC as measured by clonogenic assays on bone marrow are seen in response to GDC-0449 and whether these changes predict recurrence.

III. To determine whether changes in MM CSC can be measured with similar or better accuracy using peripheral blood flow cytometry as compared to bone marrow clonogenic assays.

IV. To determine the safety and toxicity profile for treatment with GDC-0449 following autologous transplantation in patients with high risk or relapsed MM.

V. To characterize the pharmacokinetics (PK) of GDC-0449 (total and unbound) at steady-state and correlate this with pharmacodynamic (PD) endpoints.

VI. To determine the one year progression free survival for patients given GDC-0449 following autologous transplantation.

OUTLINE:

Patients receive vismodegib orally (PO) once daily (QD) on days 1-28. Treatment repeats every 28 days for up to 11 courses in the absence of disease progression or unacceptable toxicity.

After completion of treatment, patients are followed up for 4 weeks. ;


Study Design

Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01330173
Study type Interventional
Source National Cancer Institute (NCI)
Contact
Status Completed
Phase Phase 1
Start date December 2010
Completion date November 2014

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