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This is a pilot study to gain information and estimate the toxicity/tolerability of 1-3 cycles of BD, followed by HDM/ASCT, and maintenance therapy with BD in patients with MIDD associated with multiple myeloma and AL amyloidosis.

The treatment has three phases:

1) Initial treatment phase: This phase consists of 1-3 21-day-cycles of a combination regimen that includes bortezomib 1.3 mg/m2, IV or Subcutaneous Injection (SQ), on days 1, 4, 8, and 11; and dexamethasone 40 mg PO or IV, on days 1, 4, 8, and 11. Stem cell mobilization and HDM/ASCT. Post-ASCT consolidation/maintenance treatment phase: This phase consists of six cycles of bortezomib 1.3 mg/m2, IV or (SQ) with dexamethasone 20 mg PO or IV administered on days 1, 8, 15, and 22 every 12 weeks +/- 2 weeks. Long Term Follow Up will cease when all patients on study have fulfilled the requirements for at least five follow up appointments.

Bortezomib/Dexamethasone (BD), Followed By Autologous STC & Maintenance Bortezomib/Dexamethasone

Hani Hassoun, MD

The goal of this clinical trial is to determine the toxicity and also the efficacy of a treatment that includes the following treatment: Two medications, bortezomib and dexamethasone (or BD), followed by autologous stem cell transplantation, and a prolonged course of treatment with bortezomib and dexamethasone after transplantation. This type of treatment has been very effective in multiple myeloma. However, there is little experience with this treatment in patients who have Monoclonal Immunoglobulin Deposition Disease (MIDD) or amyloidosis. The investigators and others have treated patients who have MIDD and amyloidosis with bortezomib and autologous stem cell transplantation and have had success with this treatment. But the combination of autologous transplant with BD given before and after the transplant is a new way of treating these diseases, which the investigators believe will be very effective.

Bortezomib/Dexamethasone (BD), Followed By Autologous Stem Cell Transplantation and Maintenance Bortezomib/Dexamethasone For the Initial Treatment of Monoclonal Immunoglobulin Deposition Disease (MIDD) Associated With Multiple Myeloma and AL Amyloidosis

Pilot Study of Bortezomib/Dexamethasone (BD), Followed By Autologous Stem Cell Transplantation and Maintenance Bortezomib/Dexamethasone For the Initial Treatment of Monoclonal Immunoglobulin Deposition Disease (MIDD) Associated With Multiple Myeloma and AL Amyloidosis

of a 3-phase comprehensive treatment approach including induction with BD followed by risk adapted HDM/ASCT, followed by consolidation/maintenance therapy with BD in patients with AL amyloidosis.

Toxicities will be assessed according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 4.0.

\[Complete Response (CR) (Normalization of the free light chain (FLC)levels and ratio; Negative serum and urine ; \<5% plasma cells in bone marrow), Very Good Partial Response (VGPR) (Reduction in the dFLC (difference between involved \[iFLC\] and uninvolved FLC) to\<4mg/dl) and Partial Response (PR)\] (\>/= 50% reduction in the dFLC), achieved at 12 month, and at 24 months post-initiation of treatment following the 3-phase comprehensive treatment approach.

12 months post-initiation of treatment following the 3 phase comprehensive treatment approach including induction with BD, followed by risk adapted HDM/ASCT, followed by consolidation/maintenance therapy with BD in patients with AL amyloidosis.

following the 3-phase comprehensive treatment approach including induction with BD, followed by risk adapted HDM/ASCT, followed by consolidation/maintenance therapy with BD in patients with AL amyloidosis.

24 months post-initiation of treatment following the 3 phase comprehensive treatment approach including induction with BD, followed by risk adapted HDM/ASCT, followed by consolidation/maintenance therapy with BD in patients with AL amyloidosis.

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Bortezomib/Dexamethasone (BD), Followed By Autologous Stem Cell Transplantation and Maintenance Bortezomib/Dexamethasone For the Initial Treatment of Monoclonal Immunoglobulin Deposition Disease (MIDD) Associated With Multiple Myeloma and AL Amyloidosis	NCT01383759	Light Chain Dep... Light Chain and... Monoclonal Immu... Amyloidosis	Bortezomib/Dexa...	18 Years -	Memorial Sloan Kettering Cancer Center
Bortezomib/Dexamethasone (BD), Followed By Autologous Stem Cell Transplantation and Maintenance Bortezomib/Dexamethasone For the Initial Treatment of Monoclonal Immunoglobulin Deposition Disease (MIDD) Associated With Multiple Myeloma and AL Amyloidosis	NCT01383759	Light Chain Dep... Light Chain and... Monoclonal Immu... Amyloidosis	Bortezomib/Dexa...	18 Years -	Memorial Sloan Kettering Cancer Center

Spots Global Cancer Trial Database for light chain and heavy chain deposition disease (lhcdd or midd)