Randomized Trial of G-CSF Alone Versus Intermediate-dose Ara-C Plus G-CSF Mobilization in Multiple Myeloma Patients.

Safety and Efficacy of Stem Cell Mobilization Using G-CSF (Filgrastim) Alone Compared to Intermediate-dose Cytosine Arabinoside Plus G-CSF in Multiple Myeloma Patients.

The purpose of the study is to compare safety and efficacy of stem cell mobilization using G-CSF (filgrastim) alone vs. intermediate-dose cytosine arabinoside plus G-CSF in multiple myeloma patients.

Study Overview

Detailed Description

Autologous hematopoietic stem cell transplantation (autoHSCT) is a standard treatment of eligible patients suffering from multiple myeloma (MM). Tandem autoHSCT allows to further improve results of the therapy. Nowadays, 99% of the procedures are performed using peripheral blood as a source of stem cells. Hence, the crucial point is to harvest adequate number of stem cells allowing hematopoietic recovery. The number of 5 × 10^6 CD34+ cells/kg is considered the optimal level, as far as double autoHSCT is concerned. There are two main mobilization strategies being used: based on G-CSF alone or in combination with chemotherapy (cyclophosphamide (CY) at dose range 1.5-7 g/m2 is mainly used in MM setting). However, a proportion of patients (5-40%) fail to collect the minimum number of cells required. Novel agents, like plerixafor, CXCR4 inhibitor, may enable effective CD34+ cell harvest in "poor mobilizers". Nevertheless, the optimal first-line and cost-effective protocol for mobilization of hematopoietic stem cells has not been determined so far.

Randomized trials comparing chemomobilization with use of CY + G-CSF to G-CSF alone, which had been conducted so far, did not demonstrate clear advantage of addition of CY to growth factor. Intermediate-dose cytosine arabinoside (AraC), 1.6 g/m2 plus filgrastim, has been shown to produce very high efficacy as a first or second-line mobilization regimen in patients with lymphoid malignancies, including MM. In a retrospective comparison, this strategy was significantly more effective than CY + filgrastim. This suggest that the type of chemotherapy agent added to G-CSF may play role in mobilization efficacy and that the combination of AraC and G-CSF may be more effective than G-CSF used alone. The goal of current study is to verify this hypothesis in randomized controlled trial.

Study Type

Interventional

Enrollment (Actual)

90

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Gliwice, Poland, 44-101
        • Department of Bone Marrow Transplantation and Oncohematology, Maria Sklodowska-Curie Institute, Oncology Center, Gliwice Branch

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 63 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Multiple myeloma patients considered eligible for tandem autologous stm cell transplantation procedure.
  2. Must have received at least one line of therapy including six or more cycles containing components like thalidomide, bortezomib, lenalidomide or melphalan.
  3. Must have achieved a partial remission (PR) or better response as assessed by International Myeloma Working Group guidelines.
  4. Must be 18-65 years of age.
  5. Must have World Health Organization performance status 0-1.
  6. Time form discontinuation of administration of any chemotherapy agent must be at least four weeks and immunomodulatory drug at least seven days.
  7. Hemoglobin level > 8 g/dl, Absolute neutrophil count (ANC) > 1.5 x 109/L, Platelet count >100 x 109/L.
  8. Serum creatinine < 1.5 x upper limit of normal (ULN), serum bilirubin < 1.5 ULN, serum aspartate transaminase (AST/SGOT) < 2.5 x ULN, serum alanine transaminase (ALT/SGPT) < 2.5 x ULN.
  9. Negative human immunodeficiency virus (HIV) infection test.
  10. Negative pregnancy test.
  11. Must understand and voluntarily sign informed consent form.

Exclusion Criteria:

  1. Failure of prior, first-line mobilization regimen.
  2. Bone marrow plasma cell infiltration of above 20%.
  3. Administration of growth-factor other than G-CSF within 4 weeks before starting study treatment.
  4. Administration of G-CSF within 14 days before starting study treatment.
  5. Ongoing or active infection.
  6. Coexisting neoplasm, other than multiple myeloma.
  7. Pregnant or lactating females.
  8. Patients treated with use of autologous or allogenic stem cell transplantation in the past.
  9. Positive human immunodeficiency virus (HIV) infection test.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: G-CSF (filgrastim)
Patients will receive G-CSF(filgrastim) at 10 μg/kg per day (divided into two doses every 12 hours) subcutaneously for up to 7 days. On day 5, circulating CD34+ level will be determined. Leukapheresis will be started when the CD34+ blood level will reach at least 10/µl. If the level will be not achieved, G-CSF administration will be continued until CD34+ level will decrease compared to the preceding day. Leukaphereses will be performed using Spectra-Optia Apheresis System (TherumoBCT Inc, Lakewood, CO, USA) according to the manufacturers protocols for mononuclear cell harvesting, processing 2 total blood volumes. In case of failing to harvest targeted number of stem cells (5 × 10^6 CD34+ cells/kg), next leukapheresis can be performed on following two days (maximum 3 leukaphereses) if circulating CD34+ cell level will remain as described above.
Active Comparator: Cytosine arabinoside + G-CSF (filgrastim)
Cytosine arabinoside will be administered as a 2-hour i.v. infusion at a dose of 0.4 g/m2 twice daily on days 1 and 2 (total dose 1.6 g/m2). G-CSF (filgrastim) 5-10 ug/kg will be started on day 5 and continued until last leukapheresis. The number of circulating CD34+ cells will be first evaluated after neutrophil recovery from nadir. Leukapheresis will be started when the CD34+ blood level will reach at least 10/µl. If the level will be not achieved, G-CSF administration will be continued until CD34+ level will decrease. Leukaphereses will be performed using Spectra-Optia Apheresis System (TherumoBCT Inc, Lakewood, CO, USA) according to the manufacturers protocols for mononuclear cell harvesting, processing 2 total blood volumes. In case of failing to harvest targeted number of stem cells (5 × 10^6 CD34+ cells/kg), next leukapheresis can be performed on following two days (maximum 3 leukaphereses) if circulating CD34+ cell level will remain as described above.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
The proportion of patients with stem cell yield at least 5 × 10^6 CD34+ cells/kg in each treatment arm.
Time Frame: After up to three leukaphereses (7-20 days after starting mobilization regimen).
After up to three leukaphereses (7-20 days after starting mobilization regimen).

Secondary Outcome Measures

Outcome Measure
Time Frame
Peak level of CD34+ cells in peripheral blood (/μl).
Time Frame: 7-20 days after starting mobilization regimen.
7-20 days after starting mobilization regimen.
Total number of harvested CD34+cells/kg.
Time Frame: Ater up to three leukaphereses (7-20 days after starting mobilization regimen).
Ater up to three leukaphereses (7-20 days after starting mobilization regimen).
Number of leukaphereses needed to harvest target amount of stem cells.
Time Frame: 7-20 days after starting mobilization regimen.
7-20 days after starting mobilization regimen.
The proportion of hematologic and non-hematologic complications.
Time Frame: 1 month
1 month
Duration of neutropenia < 0.5 x10^9/L and thrombocytopenia <50 x10^9/L.
Time Frame: 1 month
1 month
Number of blood transfusions needed and number of days of antibiotics therapy.
Time Frame: 1 month
1 month
Duration of hospital stay.
Time Frame: 1 month
1 month
Time of neutrophil and platelet engraftment after autologous stem cel transplantation.
Time Frame: 1 month
1 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Tomasz Czerw, MD, Maria Sklodowska-Curie Institute, Oncology Center, Gliwice Branch, Wybrzeze Armii Krajowej 15 Street, 44-101 Gliwice, Poland

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 20, 2013

Primary Completion (Actual)

March 18, 2016

Study Completion (Actual)

October 27, 2017

Study Registration Dates

First Submitted

July 23, 2013

First Submitted That Met QC Criteria

July 23, 2013

First Posted (Estimate)

July 25, 2013

Study Record Updates

Last Update Posted (Actual)

August 28, 2018

Last Update Submitted That Met QC Criteria

August 26, 2018

Last Verified

July 1, 2018

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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