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Study of Melphalan and Topotecan (MT) Followed by Autologous Stem Cell Rescue in Patients With Multiple Myeloma.

A Study of Intensive-Dose Melphalan and Topotecan (MT) Followed by Autologous Stem Cell Rescue in Patients With Multiple Myeloma.

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00325416
Enrollment
177
Registered
2006-05-12
Start date
2001-11-19
Completion date
2018-01-30
Last updated
2018-03-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Myeloma

Keywords

melphalan, topotecan, topoisomerase, bone marrow transplant, drug sequence

Brief summary

The purpose of this research study is to determine the safest dose of topotecan when given in a high dose before a stem cell transplant; topotecan will be given with melphalan.

Detailed description

The stem cells being transplanted are cells found in the bone marrow and blood that are responsible for making red blood cells, white blood cells, and platelets. The stem cells are collected by a process called leukapheresis and will be frozen for later use. After receiving the chemotherapy drugs, the stem cells will be thawed and given like a blood transfusion. This is called autologous stem cell transplant or rescue. The study doctors will be measuring how well the disease responds to the drugs as well as any side effects to the drugs. During the course of this study, blood and bone marrow samples will be obtained to measure levels of the chemotherapy drugs as well as levels of certain enzymes (proteins). The staff of the Blood and Marrow Transplant program will continue to collect information about the participant's disease and its treatment for the rest of their life.

Interventions

DRUGmelphalan

(Days -4,-3,-2) 50 mg/m\^2/day IV over 30 minutes (total dose 150 mg/m\^2)

DRUGtopotecan (TPT)

Phase I Dose Escalation: Level 1 - 20 mg/m\^2; Level 2 - 30 mg/m\^2; Level 4 - 54 mg/m\^2; Level 5 - 72 mg/m\^2; Level 6 - 96 mg/m\^2; Level 7 - 127.8 mg/m\^2; Level 8 - 170.1 mg/m\^2 Phase II: Treatment at maximum tolerated dose (MTD)

Sponsors

GlaxoSmithKline
CollaboratorINDUSTRY
National Cancer Institute (NCI)
CollaboratorNIH
H. Lee Moffitt Cancer Center and Research Institute
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Multiple Myeloma Criteria = Newly diagnosed with drug sensitive disease (\>50% tumor response to standard chemotherapy) and poor prognostic indicators, such as Salmon-Durie stage III, serum b-2-microglobulin \>3.0 mg/L, high proliferative fraction or hypodiploidy. Relapsed patients after a response to standard chemotherapy. Patients with primary refractory disease. Patients with non-secretory multiple myeloma are eligible for enrollment on this study. They will be followed for toxicity, survival and molecular endpoint analyses, but will not be followed for response. Patients with plasma cell leukemia, either occurring de novo or arising from existing multiple myeloma, are ineligible for this study. * Patients greater than or equal to 18 years of age are eligible. * Patients must have histologically confirmed diagnosis by a pathologic review at the H. Lee Moffitt Cancer Center and Research Institute. * Patients must have undergone a complete psychosocial evaluation and been considered capable of compliance. * Patients willing and able to receive palifermin (young cohort only)

Exclusion criteria

* Patients with a diffusing lung capacity oxygenation (DLCO) less than 50% (adjusted) of normal or with symptomatic obstructive or restrictive disease are ineligible. * Patients with a serum creatinine of greater than 2.0 mg/dL OR a creatinine clearance of less than 40 ml/minute. Creatinine clearance can be measured or calculated. Patients with renal dysfunction secondary to multiple myeloma may be enrolled at the discretion of the principal investigator. However, patients on hemodialysis or peritoneal dialysis are ineligible. * Patients with a total bilirubin greater than 2.0 mg/dL and serum glutamate oxaloacetate transaminase (SGOT) or serum glutamate pyruvate transaminase (SGPT) greater than two and a half times normal (unless due to primary malignancy), or a history of severe hepatic dysfunction are ineligible. * Patients who have evidence of severe cardiac dysfunction are ineligible. A gated blood pool (MUGA) scan must show an ejection fraction of at least 50%. Patients must be free of major heart disease. Patients are ineligible if they have received a total dose of doxorubicin of greater than 450 mg/m2 (or daunorubicin equivalent) unless the left ventricular ejection fraction by MUGA scan is at least 50%. Patients must not be taking nitroglycerin preparations for angina pectoris or antiarrhythmic drugs for major ventricular dysrhythmias. Patients with essential hypertension controlled with medications are eligible for study. Any patient with congenital or acquired heart disease or cardiac arrhythmias will have a cardiology consult and evaluation. * Patients with active infections are ineligible. * Patients who are HIV antibody positive are ineligible. * Patients with active leptomeningeal involvement are ineligible. Patients with a history of previous cerebrospinal fluid (CSF) tumor involvement without symptoms or signs are eligible provided the CSF is now free of disease on lumbar puncture and MRI of the brain shows no tumor involvement. Patients with severe symptomatic central nervous system (CNS) disease of any etiology are ineligible. * Patients with uncontrolled insulin-dependent diabetes mellitus or uncompensated major thyroid or adrenal dysfunction are ineligible. * Patients with an Eastern Cooperative Oncology Group (ECOG) performance status of \> or = 2 are ineligible. Patients with ECOG performance status 2 to 3 secondary to bone pain may be enrolled at the discretion of the institutional investigator. Patients with ECOG performance status 2 to 3 secondary to a potentially reversible disease-related problem may be enrolled at the discretion of the institutional investigator. * Patients who are pregnant or lactating are ineligible. * Patients with any previous malignancy other than non-melanoma skin cancer are ineligible, unless the patient is without evidence of disease \> or = 5 years after the treatment for the cancer was completed. * Patients previously treated with topotecan or any other topoisomerase I inhibitor.

Design outcomes

Primary

MeasureTime frameDescription
Phase I - Maximum Tolerated Dose (MTD) LevelPhase I - 5 years, 2 monthsMTD of topotecan in multiple myeloma patients receiving autologous transplant when give with melphalan 150 mg/m\^2 for three days. Two parallel dose escalations were used, one each for young (18-60 years of age) and elderly patients (\> 61 years of age). Elderly patients began a dose level once it had been found to be safe for the young cohort. The purpose of this approach was to expand the access of this trial to elderly patients while ensuring safety. Phase I Dose Escalation: Level 1 - 20 mg/m\^2; Level 2 - 30 mg/m\^2; Level 4 - 54 mg/m\^2; Level 5 - 72 mg/m\^2; Level 6 - 96 mg/m\^2; Level 7 - 127.8 mg/m\^2; Level 8 - 170.1 mg/m\^2
Phase II Participants - Overall Response RatePhase II - Phase start at 62 months up to 120 monthsRe-evaluation of participants who had responsive disease prior to transplant. All changes in monoclonal protein and immunoglobulins will be referenced to those levels obtained immediately prior to cyclophosphamide priming chemotherapy. Complete Response (CR): A CR will be defined as the disappearance of the monoclonal protein by immunofixation studies of serum and urine (100x concentrate) and less than or equal to 5% plasma cells in a bone marrow aspirate. Partial Response (PR): 50% - 74% decrease in the measurable monoclonal protein (M-component from an SPEP and/or UPEP with immunofixation).

Secondary

MeasureTime frameDescription
Phase II Event Free Survival (EFS)Phase II - Phase start at 62 months up to 120 monthsTime to treatment failure, which is defined as the time from day 0 to the time of progressive disease. Progressive disease is defined by unequivocal objective evidence and constitutes any of the following: 1). an increase in the total amount of monoclonal protein (M-component from Serum Protein Electrophoresis (SPEP) and/or Urine Protein Electrophoresis (UPEP) with immunofixation) by more than 100% from the lowest level of serum myeloma protein seen after high-dose chemotherapy by serum protein electrophoresis; 2). an increase in the total amount of monoclonal protein above the remission level of the myeloma peak (i.e., an increase of \>25% above the lowest level in a 24 hour urine or serum protein; 3). the reappearance of the M-protein if the patient had entered a CR: 4). definite increase in the size (\> 1 cm) or number of lytic bone lesions. Compression fractures do not constitute a relapse.
Phase II Overall Survival (OS)Phase II - Phase start at 62 months up to 120 monthsTime from start of treatment until death from any cause.

Other

MeasureTime frameDescription
DNA Topoisomerase I Amount, Activity, or Subcellular DistributionLaboratory study (N/A)Laboratory Correlates will be summarized using descriptive statistics.
Genomic DNA Sequence Variations and Correlate With Toxicity to Melphalan and TopotecanLaboratory study (N/A)Laboratory Correlates will be summarized using descriptive statistics.
Breast Cancer Resistance Protein (BCRP) ExpressionLaboratory study (N/A)BCRP function will be assayed in multiple myeloma patient bone marrow aspirates obtained before and during high dose chemotherapy. BCRP function is expressed as the change in relative fluorescence in topotecan versus control cells. The distribution of paired differences in BCRP, a continuous variable, will be summarized using descriptive statistics and will be correlated with response and toxicity.
Pharmacokinetic Profiles of High Dose Topotecan and MelphalanPredetermined time points in protocolEvaluate the pharmacokinetic profiles of high dose topotecan and melphalan and to investigate the pharmacodynamic relationships with respect to the efficacy and toxicity of this regimen in each age group. Pharmacokinetics of Topotecan: For all dose levels, topotecan levels on Day -4 will be obtained at -15 min, 20 min into 30 min infusion, and 5 min, 15 min, 30 min, 1 h, 2 h, 4 h, 8 h, and 23 h after the 30 min infusion. Pharmacokinetics of Melphalan: For all dose levels, melphalan levels during the first day of cytoxan priming chemotherapy and on Day -4 will be obtained before, at the end of the infusion, and 5 minutes (min), 15 min, 30 min, 45 min, 60 min, 90 min, 120 min and 180 min after the infusion. The infusion time for the test dose of melphalan is over 5 min and for the high-dose is over 30 min.
Amount, Activity and Subcellular Distribution of Topoisomerase I With Clinical Response and ToxicityLaboratory study (no specific time points)Laboratory Correlates will be summarized using descriptive statistics.

Countries

United States

Participant flow

Recruitment details

Phase I: 129 (70 Group A and 60 Group B) participants were enrolled during the Phase I portion. Phase II: 48 (40 Group A and 8 Group B) participants were enrolled during the Phase II portion. Both Phases: 72 Phase I participants were still on study when Phase II began.

Participants by arm

ArmCount
Age Group A - Melphalan and Topotecan Plus Stem Cell Rescue
Participants 18 - 60 years of age. Intensive-Dose Melphalan and Topotecan (MT) followed by Stem Cell transplant. melphalan: (Days -4,-3,-2) 50 mg/m\^2/day IV over 30 minutes (total dose 150 mg/m\^2) topotecan (TPT): Phase I Dose Escalation: Level 1 - 20 mg/m\^2; Level 2 - 30 mg/m\^2; Level 4 - 54 mg/m\^2; Level 5 - 72 mg/m\^2; Level 6 - 96 mg/m\^2; Level 7 - 127.8 mg/m\^2; Level 8 - 170.1 mg/m\^2 Phase II: Treatment at maximum tolerated dose (MTD) Autologous Stem Cell Rescue: Day 0
109
Age Group B - Melphalan and Topotecan Plus Stem Cell Rescue
Participants 61 years of age or older. Intensive-Dose Melphalan and Topotecan (MT) followed by Stem Cell transplant. melphalan: (Days -4,-3,-2) 50 mg/m\^2/day IV over 30 minutes (total dose 150 mg/m\^2) topotecan (TPT): Phase I Dose Escalation: Level 1 - 20 mg/m\^2; Level 2 - 30 mg/m\^2; Level 4 - 54 mg/m\^2; Level 5 - 72 mg/m\^2; Level 6 - 96 mg/m\^2; Level 7 - 127.8 mg/m\^2; Level 8 - 170.1 mg/m\^2 Phase II: Treatment at maximum tolerated dose (MTD) Autologous Stem Cell Rescue: Day 0
68
Total177

Withdrawals & dropouts

PeriodReasonFG000FG001
Phase I: Dose EscalationDenial of insurance coverage74
Phase I: Dose EscalationInability to collect adequate stem cells01
Phase I: Dose EscalationPre-transplant screen failure89
Phase I: Dose EscalationWithdrawal by Subject72
Phase II: Treatment at MTDdenial of insurance coverage01
Phase II: Treatment at MTDWithdrawal by Subject01

Baseline characteristics

CharacteristicAge Group A - Melphalan and Topotecan Plus Stem Cell RescueAge Group B - Melphalan and Topotecan Plus Stem Cell RescueTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants58 Participants58 Participants
Age, Categorical
Between 18 and 65 years
109 Participants10 Participants119 Participants
Age, Continuous46 years68.5 years54 years
Region of Enrollment
United States
109 participants68 participants177 participants
Sex: Female, Male
Female
39 Participants29 Participants68 Participants
Sex: Female, Male
Male
70 Participants39 Participants109 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 1090 / 68
serious
Total, serious adverse events
27 / 10923 / 68

Outcome results

Primary

Phase II Participants - Overall Response Rate

Re-evaluation of participants who had responsive disease prior to transplant. All changes in monoclonal protein and immunoglobulins will be referenced to those levels obtained immediately prior to cyclophosphamide priming chemotherapy. Complete Response (CR): A CR will be defined as the disappearance of the monoclonal protein by immunofixation studies of serum and urine (100x concentrate) and less than or equal to 5% plasma cells in a bone marrow aspirate. Partial Response (PR): 50% - 74% decrease in the measurable monoclonal protein (M-component from an SPEP and/or UPEP with immunofixation).

Time frame: Phase II - Phase start at 62 months up to 120 months

Population: Phase II (treatment at MTD) participants with responsive disease prior to transplant.

ArmMeasureGroupValue (NUMBER)
Age Group A - Melphalan and Topotecan Plus Stem Cell RescuePhase II Participants - Overall Response RateOverall Response Rate65 percentage of participants
Age Group A - Melphalan and Topotecan Plus Stem Cell RescuePhase II Participants - Overall Response RateComplete Response Rate26 percentage of participants
Age Group A - Melphalan and Topotecan Plus Stem Cell RescuePhase II Participants - Overall Response RatePartial Response Rate39 percentage of participants
Age Group B - Melphalan and Topotecan Plus Stem Cell RescuePhase II Participants - Overall Response RateOverall Response Rate57 percentage of participants
Age Group B - Melphalan and Topotecan Plus Stem Cell RescuePhase II Participants - Overall Response RateComplete Response Rate18 percentage of participants
Age Group B - Melphalan and Topotecan Plus Stem Cell RescuePhase II Participants - Overall Response RatePartial Response Rate39 percentage of participants
Primary

Phase I - Maximum Tolerated Dose (MTD) Level

MTD of topotecan in multiple myeloma patients receiving autologous transplant when give with melphalan 150 mg/m\^2 for three days. Two parallel dose escalations were used, one each for young (18-60 years of age) and elderly patients (\> 61 years of age). Elderly patients began a dose level once it had been found to be safe for the young cohort. The purpose of this approach was to expand the access of this trial to elderly patients while ensuring safety. Phase I Dose Escalation: Level 1 - 20 mg/m\^2; Level 2 - 30 mg/m\^2; Level 4 - 54 mg/m\^2; Level 5 - 72 mg/m\^2; Level 6 - 96 mg/m\^2; Level 7 - 127.8 mg/m\^2; Level 8 - 170.1 mg/m\^2

Time frame: Phase I - 5 years, 2 months

Population: Phase I Dose Escalation participants.

ArmMeasureValue (NUMBER)
Age Group A - Melphalan and Topotecan Plus Stem Cell RescuePhase I - Maximum Tolerated Dose (MTD) Level127.8 mg/m^2
Age Group B - Melphalan and Topotecan Plus Stem Cell RescuePhase I - Maximum Tolerated Dose (MTD) Level30 mg/m^2
Secondary

Phase II Event Free Survival (EFS)

Time to treatment failure, which is defined as the time from day 0 to the time of progressive disease. Progressive disease is defined by unequivocal objective evidence and constitutes any of the following: 1). an increase in the total amount of monoclonal protein (M-component from Serum Protein Electrophoresis (SPEP) and/or Urine Protein Electrophoresis (UPEP) with immunofixation) by more than 100% from the lowest level of serum myeloma protein seen after high-dose chemotherapy by serum protein electrophoresis; 2). an increase in the total amount of monoclonal protein above the remission level of the myeloma peak (i.e., an increase of \>25% above the lowest level in a 24 hour urine or serum protein; 3). the reappearance of the M-protein if the patient had entered a CR: 4). definite increase in the size (\> 1 cm) or number of lytic bone lesions. Compression fractures do not constitute a relapse.

Time frame: Phase II - Phase start at 62 months up to 120 months

Population: Phase II (treatment at MTD) evaluable participants at time of analysis

ArmMeasureValue (MEDIAN)
Age Group A - Melphalan and Topotecan Plus Stem Cell RescuePhase II Event Free Survival (EFS)13.3 months
Age Group B - Melphalan and Topotecan Plus Stem Cell RescuePhase II Event Free Survival (EFS)21.3 months
Secondary

Phase II Overall Survival (OS)

Time from start of treatment until death from any cause.

Time frame: Phase II - Phase start at 62 months up to 120 months

Population: Phase II (treatment at MTD) evaluable participants at time of analysis

ArmMeasureValue (MEDIAN)
Age Group A - Melphalan and Topotecan Plus Stem Cell RescuePhase II Overall Survival (OS)63 months
Age Group B - Melphalan and Topotecan Plus Stem Cell RescuePhase II Overall Survival (OS)62 months
Other Pre-specified

Amount, Activity and Subcellular Distribution of Topoisomerase I With Clinical Response and Toxicity

Laboratory Correlates will be summarized using descriptive statistics.

Time frame: Laboratory study (no specific time points)

Other Pre-specified

Breast Cancer Resistance Protein (BCRP) Expression

BCRP function will be assayed in multiple myeloma patient bone marrow aspirates obtained before and during high dose chemotherapy. BCRP function is expressed as the change in relative fluorescence in topotecan versus control cells. The distribution of paired differences in BCRP, a continuous variable, will be summarized using descriptive statistics and will be correlated with response and toxicity.

Time frame: Laboratory study (N/A)

Other Pre-specified

DNA Topoisomerase I Amount, Activity, or Subcellular Distribution

Laboratory Correlates will be summarized using descriptive statistics.

Time frame: Laboratory study (N/A)

Other Pre-specified

Genomic DNA Sequence Variations and Correlate With Toxicity to Melphalan and Topotecan

Laboratory Correlates will be summarized using descriptive statistics.

Time frame: Laboratory study (N/A)

Other Pre-specified

Pharmacokinetic Profiles of High Dose Topotecan and Melphalan

Evaluate the pharmacokinetic profiles of high dose topotecan and melphalan and to investigate the pharmacodynamic relationships with respect to the efficacy and toxicity of this regimen in each age group. Pharmacokinetics of Topotecan: For all dose levels, topotecan levels on Day -4 will be obtained at -15 min, 20 min into 30 min infusion, and 5 min, 15 min, 30 min, 1 h, 2 h, 4 h, 8 h, and 23 h after the 30 min infusion. Pharmacokinetics of Melphalan: For all dose levels, melphalan levels during the first day of cytoxan priming chemotherapy and on Day -4 will be obtained before, at the end of the infusion, and 5 minutes (min), 15 min, 30 min, 45 min, 60 min, 90 min, 120 min and 180 min after the infusion. The infusion time for the test dose of melphalan is over 5 min and for the high-dose is over 30 min.

Time frame: Predetermined time points in protocol

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026