MedPath

S0115, High-Dose Melphalan and Autologous Peripheral Stem Cell Transplantation in Treating Patients With Multiple Myeloma or Primary Systemic Amyloidosis

Phase 2
Completed
Conditions
Multiple Myeloma
Plasma Cell Myeloma
Interventions
Biological: filgrastim
Procedure: peripheral blood stem cell transplantation
Registration Number
NCT00064337
Lead Sponsor
SWOG Cancer Research Network
Brief Summary

RATIONALE: Drugs used in chemotherapy such as melphalan work in different ways to stop cancer cells from dividing so they stop growing or die. Combining chemotherapy with donor peripheral stem cell transplantation may allow the doctor to give higher doses of chemotherapy drugs and kill more cancer cells.

PURPOSE: This phase II trial is studying how well giving melphalan together with autologous stem cell transplantation works in treating patients with multiple myeloma or primary systemic amyloidosis.

Detailed Description

OBJECTIVES:

* Determine overall survival of patients with high-risk multiple myeloma, primary systemic amyloidosis, or light chain deposition disease treated with two courses of modified high-dose melphalan and autologous peripheral blood stem cell transplantation.

* Determine the hematologic response in patients treated with this regimen.

* Determine the qualitative and quantitative toxic effects of this regimen in these patients.

* Determine the prognostic significance of cytogenetic markers in these patients.

OUTLINE: This is a multicenter study. Patients are stratified according to disease (high-risk multiple myeloma vs primary systemic amyloidosis vs both).

* Induction therapy (multiple myeloma patients only): Patients receive oral dexamethasone on days 1-4, 9-12, and 17-20 and oral thalidomide daily on days 1-35. Treatment repeats every 35 days for 2 courses in the absence of disease progression or unacceptable toxicity.

* Mobilization and stem cell collection:

* Multiple myeloma patients: Within 28-35 days after completion of induction therapy, patients receive cyclophosphamide IV over 2-3 hours on day 1 and filgrastim (G-CSF) subcutaneously (SC) daily beginning on day 2 and continuing through the day before the last leukapheresis. Usage of mesna IV on day 1 (prior to and twice after cyclophosphamide administration is recommended).

* Primary systemic amyloidosis patients: Patients receive G-CSF SC daily beginning on day 1 and continuing through the day before the last leukapheresis.

All patients undergo leukapheresis for the collection of stem cells until the target number of CD34+ cells is reached.

* Conditioning regimen: Within 1-4 weeks after mobilization, patients receive modified high-dose melphalan IV over 20 minutes on day -2.

* Peripheral blood stem cell (PBSC) reinfusion: PBSCs are reinfused on day 0. Patients receive G-CSF SC daily beginning on day 1 and continuing until blood counts recover.

Patients undergo a second autologous PBSC transplantation within 3-6 months, but no later than 12 months, after the first transplantation.

* Second conditioning regimen: Patients receive modified high-dose melphalan IV over 20 minutes on day -2.

* Second PBSC infusion: PBSCs are infused on day 0.

* Maintenance regimen (multiple myeloma patients only): Between 4-8 weeks after the second transplantation, patients with no progressive disease receive oral dexamethasone once daily on days 1-4 and oral thalidomide once daily on days 1-28. Courses repeat every 28 days for 2 years in the absence of disease progression or unacceptable toxicity.

Patients are followed at 3 and 6 months and then annually thereafter.

PROJECTED ACCRUAL: A total of 100 patients will be accrued for this study within 20-25 months.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
104
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
TreatmentfilgrastimMM Induction: dexamethasone 20mg/d PO Days 1-4, 9-12 and 17-20 every 35 days for 2 cycles and thalidomide 200 mg/d PO Days 1-70. Mobilization and SC Collection: MM, MM+AL, MM+LCD: cyclophosphamide 2.5 gm/m2 IV Day 1; mesna 800 mg/m2 IV Day 1 x 3 doses; G-CSF 10 mcg/kg/d SQ Day 2 through day prior to last leukapheresis. Amyloid or LCDD-Only: G-CSF 16 mcg/kg/d SQ Days 1-3 (continued daily until the day prior to the last day of stem cell collection). Conditioning/Transplant - Modified HighDose Melphalan (given for both transplants): melphalan 100 mg/m2/d IV over 20 mins Day -2; PBSC infusion \>/= 3.5 x 10\^6 CD34+ cells/kg IV Day 0. Maintenance (MM only): dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year, followed by dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year.
Treatmentperipheral blood stem cell transplantationMM Induction: dexamethasone 20mg/d PO Days 1-4, 9-12 and 17-20 every 35 days for 2 cycles and thalidomide 200 mg/d PO Days 1-70. Mobilization and SC Collection: MM, MM+AL, MM+LCD: cyclophosphamide 2.5 gm/m2 IV Day 1; mesna 800 mg/m2 IV Day 1 x 3 doses; G-CSF 10 mcg/kg/d SQ Day 2 through day prior to last leukapheresis. Amyloid or LCDD-Only: G-CSF 16 mcg/kg/d SQ Days 1-3 (continued daily until the day prior to the last day of stem cell collection). Conditioning/Transplant - Modified HighDose Melphalan (given for both transplants): melphalan 100 mg/m2/d IV over 20 mins Day -2; PBSC infusion \>/= 3.5 x 10\^6 CD34+ cells/kg IV Day 0. Maintenance (MM only): dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year, followed by dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year.
TreatmentcyclophosphamideMM Induction: dexamethasone 20mg/d PO Days 1-4, 9-12 and 17-20 every 35 days for 2 cycles and thalidomide 200 mg/d PO Days 1-70. Mobilization and SC Collection: MM, MM+AL, MM+LCD: cyclophosphamide 2.5 gm/m2 IV Day 1; mesna 800 mg/m2 IV Day 1 x 3 doses; G-CSF 10 mcg/kg/d SQ Day 2 through day prior to last leukapheresis. Amyloid or LCDD-Only: G-CSF 16 mcg/kg/d SQ Days 1-3 (continued daily until the day prior to the last day of stem cell collection). Conditioning/Transplant - Modified HighDose Melphalan (given for both transplants): melphalan 100 mg/m2/d IV over 20 mins Day -2; PBSC infusion \>/= 3.5 x 10\^6 CD34+ cells/kg IV Day 0. Maintenance (MM only): dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year, followed by dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year.
TreatmentdexamethasoneMM Induction: dexamethasone 20mg/d PO Days 1-4, 9-12 and 17-20 every 35 days for 2 cycles and thalidomide 200 mg/d PO Days 1-70. Mobilization and SC Collection: MM, MM+AL, MM+LCD: cyclophosphamide 2.5 gm/m2 IV Day 1; mesna 800 mg/m2 IV Day 1 x 3 doses; G-CSF 10 mcg/kg/d SQ Day 2 through day prior to last leukapheresis. Amyloid or LCDD-Only: G-CSF 16 mcg/kg/d SQ Days 1-3 (continued daily until the day prior to the last day of stem cell collection). Conditioning/Transplant - Modified HighDose Melphalan (given for both transplants): melphalan 100 mg/m2/d IV over 20 mins Day -2; PBSC infusion \>/= 3.5 x 10\^6 CD34+ cells/kg IV Day 0. Maintenance (MM only): dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year, followed by dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year.
TreatmentmelphalanMM Induction: dexamethasone 20mg/d PO Days 1-4, 9-12 and 17-20 every 35 days for 2 cycles and thalidomide 200 mg/d PO Days 1-70. Mobilization and SC Collection: MM, MM+AL, MM+LCD: cyclophosphamide 2.5 gm/m2 IV Day 1; mesna 800 mg/m2 IV Day 1 x 3 doses; G-CSF 10 mcg/kg/d SQ Day 2 through day prior to last leukapheresis. Amyloid or LCDD-Only: G-CSF 16 mcg/kg/d SQ Days 1-3 (continued daily until the day prior to the last day of stem cell collection). Conditioning/Transplant - Modified HighDose Melphalan (given for both transplants): melphalan 100 mg/m2/d IV over 20 mins Day -2; PBSC infusion \>/= 3.5 x 10\^6 CD34+ cells/kg IV Day 0. Maintenance (MM only): dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year, followed by dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year.
TreatmentthalidomideMM Induction: dexamethasone 20mg/d PO Days 1-4, 9-12 and 17-20 every 35 days for 2 cycles and thalidomide 200 mg/d PO Days 1-70. Mobilization and SC Collection: MM, MM+AL, MM+LCD: cyclophosphamide 2.5 gm/m2 IV Day 1; mesna 800 mg/m2 IV Day 1 x 3 doses; G-CSF 10 mcg/kg/d SQ Day 2 through day prior to last leukapheresis. Amyloid or LCDD-Only: G-CSF 16 mcg/kg/d SQ Days 1-3 (continued daily until the day prior to the last day of stem cell collection). Conditioning/Transplant - Modified HighDose Melphalan (given for both transplants): melphalan 100 mg/m2/d IV over 20 mins Day -2; PBSC infusion \>/= 3.5 x 10\^6 CD34+ cells/kg IV Day 0. Maintenance (MM only): dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year, followed by dexamethasone 40 mg/d PO Days 1-4 every 28 days and thalidomide 100 mg/d PO daily - given for one year.
Primary Outcome Measures
NameTimeMethod
Overall Survival5 years from initial registration, or until death, whichever occurred earlier, on average, about 4.5 years

Time from initial registration until death or date of last contact, whichever occurs first, for up to 5 years from the date of the last patient registration.

Secondary Outcome Measures
NameTimeMethod
Hematologic ResponseUntil off study

Trial Locations

Locations (34)

Arkansas Cancer Research Center at University of Arkansas for Medical Sciences

🇺🇸

Little Rock, Arkansas, United States

University of California Davis Cancer Center

🇺🇸

Sacramento, California, United States

Mountain States Tumor Institute at St. Luke's Regional Medical Center

🇺🇸

Boise, Idaho, United States

Kansas Masonic Cancer Research Institute at the University of Kansas Medical Center

🇺🇸

Kansas City, Kansas, United States

Tammy Walker Cancer Center at Salina Regional Health Center

🇺🇸

Salina, Kansas, United States

Boston University Cancer Research Center

🇺🇸

Boston, Massachusetts, United States

Barbara Ann Karmanos Cancer Institute

🇺🇸

Detroit, Michigan, United States

Josephine Ford Cancer Center at Henry Ford Hospital

🇺🇸

Detroit, Michigan, United States

CCOP - Montana Cancer Consortium

🇺🇸

Billings, Montana, United States

Hematology-Oncology Centers of the Northern Rockies - Billings

🇺🇸

Billings, Montana, United States

Scroll for more (24 remaining)
Arkansas Cancer Research Center at University of Arkansas for Medical Sciences
🇺🇸Little Rock, Arkansas, United States

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.