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Melphalan and Radiation Therapy Followed By Lenalidomide in Treating Patients Who Are Undergoing Autologous Stem Cell Transplant for Stage I, Stage II, or Stage III Multiple Myeloma

Tandem High-Dose Therapy With Melphalan and Total Marrow Irradiation (TMI) With Peripheral Blood Progenitor Cell Support and Lenalidomide Maintenance in Multiple Myeloma: A Phase I/II Trial

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00112827
Enrollment
54
Registered
2005-06-03
Start date
2004-11-30
Completion date
2019-02-15
Last updated
2025-06-06

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

Conditions

Refractory Multiple Myeloma, Smoldering Multiple Myeloma, Stage I Multiple Myeloma, Stage II Multiple Myeloma, Stage III Multiple Myeloma

Brief summary

RATIONALE: Melphalan, a chemotherapeutic agent, has been found to be an effective treatment choice for destroying myeloma cells, especially when given at high (bone marrow ablative) doses. Total marrow irradiation (TMI)/ablative dose radiation therapy is another modality capable of destroying myeloma cells. Autologous peripheral blood/stem cell transplant (ASCT) given after either melphalan or following TMI (aimed at the bone marrow containing areas of the skeleton, the site of origin of myeloma cells) will shorten the duration/alleviate the severity of both melphalan and marrow irradiation-associated side effects. Lenalidomide, an effective agent on its own right for the treatment of myeloma, has been shown to further enhance the beneficial effects of autologous stem cell transplants when given as maintenance therapy. PURPOSE: This previously phase I trial established the maximum tolerated dose of TMI at 1600 cGy. The phase II part of this study is ongoing and is studying the effects of high-dose melphalan and ASCT, followed by TMI and a second ASCT, with subsequent maintenance lenalidomide. The study is conducted in patients with stages I-III myeloma, with specific emphasis on assessing complete and very good partial response rate conversions, progression-free and overall survival, and safety/feasibility of delivering the planned treatment regimen.

Detailed description

PRIMARY OBJECTIVES: I. To assess the feasibility and toxicities of tandem cycle ablative therapy consisting first of high-dose melphalan and then escalating doses of fractionated total marrow irradiation (TMI) using helical tomotherapy in patients with advanced multiple myeloma. II. To establish the maximum tolerated dose of TMI using helical tomotherapy. III. To assess response rate, progression free and over-all survival following treatment with tandem cycle ablative therapy consisting first of high-dose melphalan and then escalating doses of TMI using helical tomotherapy with Dexamethasone/Thalidomide maintenance therapy in patients with advanced multiple myeloma. IV. To assess the feasibility of adding decadron and thalidomide as maintenance following the second cycle of high-dose therapy. SECONDARY OBJECTIVES: I. To perform cytogenetic, gene rearrangement, and fluorescence in situ hybridization (FISH) studies on baseline and post-treatment bone marrow and blood specimens and correlate the presence/persistence of these features with treatment outcome. II. To bank/develop cell lines developed for future investigations of tumor biology, and for potential assessment of efficacy of novel therapeutic agents. OUTLINE: This is a dose-escalation study of total marrow irradiation (TMI). PRIMING AND APHERESIS: Patients receive cyclophosphamide IV over 2 hours. Patients also receive filgrastim IV or subcutaneously daily beginning 24 hours after the administration of cyclophosphamide and continuing until apheresis is complete. Patients undergo apheresis until an adequate number of peripheral blood stem cells are collected. ABLATIVE THERAPY: Course 1: Patients receive high-dose melphalan IV over 30 minutes on days -2 and -1. Patients then undergo autologous PBSC transplantation on day 0 and receive filgrastim IV or subcutaneously beginning on day 5 and continuing until blood counts recover. Course 2: Beginning 6-18 weeks later, patients undergo TMI once or twice daily on days -4 to -1. Patients then undergo autologous peripheral blood stem cell transplant and receive filgrastim IV or subcutaneously beginning on day 5 and continuing until blood counts recover. MAINTENANCE THERAPY: Beginning within 6-8 weeks of day 0 of course 2 (TMI), patients receive oral lenalidomide daily. Courses repeat every 28 days for approximately 3 years in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed at 30 days, every 6 months for 1 year, and then annually for at least 2 years.

Interventions

Undergo irradiation

DRUGmelphalan

Given IV

PROCEDUREperipheral blood stem cell transplantation

Undergo transplantation

BIOLOGICALfilgrastim

Given IV

GENETICfluorescence in situ hybridization

Correlative studies

GENETICcytogenetic analysis

Correlative studies

DRUGcyclophosphamide

Given IV

DRUGlenalidomide

Given orally

Sponsors

City of Hope Medical Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
No minimum to 70 Years
Healthy volunteers
No

Inclusion criteria

Criteria * Patients with multiple myeloma (stages I-III) will be eligible if they are either in response, or have stable disease * Patients with smoldering myeloma are eligible if there is evidence of progressive disease requiring therapy (\>= 25% increase in M protein levels or Bence Jones excretion; Hgb =\< 10.5 g/dl; frequent infections; hypercalcemia; rise in serum creatinine above normal on two separate occasion) * Patients with non-quantifiable monoclonal proteins are eligible provided they meet other criteria for multiple myeloma, or smoldering myeloma, and they have evaluable or measurable disease by other (radiographic) means * Unlimited prior chemotherapy regimens allowed * KPS \>= 70% * Patients with Waldenstrom's macroglobulinemia are not eligible * Less than 18 months since diagnosis * No contraindication to the collection of a minimum of 4 x 10\^6 CD34+ cells/kg by apheresis * All patients must have signed a voluntary, informed consent in accordance with institutional and federal guidelines * Adequate hepatic function as demonstrated by bilirubin, =\< 1.5 mg/dl, and SGOT and SGPT \< 2.5 x upper limits of normal * Adequate renal function as demonstrated by: creatinine of measured or calculated creatinine clearance of \> 50 cc/min * Absolute neutrophil count of \> 1000/ul, platelet count of \> 100,000/ul * Cardiac ejection fraction \>= 50% by MUGA scan and/or by echocardiogram * Adequate pulmonary function as demonstrated by FEV1 \> 60% and DLCO \> 50% of predicted lower limit * Hepatitis B antigen, Hepatitis C RNA and HIV antibody tests negative * No other medical, or psychosocial problems, which in the opinion of the primary physician or principal investigator would place the patient at unacceptably high risk from this treatment regimen * Females of reproductive age not using adequate birth control measures/ or who are pregnant are not eligible * History of other malignancies within the last 3 years, as long as patients have remained in complete remission for at least 2 years, except for non-melanoma skin cancer and in situ carcinoma of the cervix * Patients should have finished their prior chemotherapy at least 14 days prior to cyclophosphamide priming, and should have received their last dose of thalidomide, dexamethasone, or bisphosphonate \> 10 days prior to cyclophosphamide priming * Pre-treatment tests must have been performed within 6 weeks prior to initiation of cyclophosphamide; A CBC, platelet count and comprehensive chemistry panel should be performed within 1 week prior to initiating cyclophosphamide priming * Known hypersensitivity to Filgrastim or to E. coli derived proteins is an exclusion * Inability to lie supine in a full body cast for approximately 30 minutes, the anticipated duration of each treatment session, is an exclusion * Previous radiation therapy to more than 20% of bone marrow containing areas, or to any area exceeding 2000 cGy, is an exclusion * Patients must be fully aware of the teratogenic potential of thalidomide and agree to fully comply with the mandated guidelines regarding contraception as stated in the informed consent and the patient warning document attached to the consent form * Women of childbearing potential must have a negative pregnancy test performed within 24 hours prior to beginning thalidomide, except for woman who have been postmenopausal for at least 2 years, or underwent hysterectomy * Use of effective means of contraceptive should be started at least 2 weeks prior to initiating thalidomide

Design outcomes

Primary

MeasureTime frameDescription
Maximum Tolerated Dose (MTD)8 weeks from start of treatment, up to 2 yearsThe highest dose tested (Total Marrow Irradiation) in which there is no treatment related mortality and none or only one patient experienced dose limited toxicity (DLT) attributable to the study drug(s), when at least six were fully treated at that dose and fully followed for toxicity. The MTD is one dose level below the lowest dose tested in which 2 or more patients experienced DLT attributable to the treatment or there was a treatment related death. At least 6 patients will be treated at the MTD.
Number of Subjects With ResponseEvaluated after each course until completion of treatment.Response defined as complete response or very good partial response. Complete response defined as the absence of bone marrow or blood findings of multiple myeloma on at least 2 measurements at a minimum of a 6 week interval. Thus all evidence of serum and urinary M-components must disappear on electrophoresis as well as by immunofixation studies. The follow-up bone marrow may not contain more than 5% plasma cells on aspiration or core biopsy and no evidence of increasing anemia. Skeletal X-rays must either show recalcification or no change in osteolytic lesions. Resolution of soft tissue plasmocytomas. Very good partial response defined as reduction of bone marrow or blood findings of multiple myeloma on at least 2 measurements at a minimum of a 6 week interval by greater than or equal to 90%.
Overall SurvivalFrom date of treatment until the date of death from any cause, assessed up to 14 yearsEstimated using the product-limit method of Kaplan and Meier. Event defined as death due to any cause.

Countries

United States

Participant flow

Participants by arm

ArmCount
Phase 1 Cohort 1 (Total TMI Dose: 1000 cGy)
See Detailed Description total marrow irradiation: Undergo irradiation escalating according to the following schedule 1000cGy, 1200cGy, 1400cGy, 1600cGy, 1800cGy melphalan: Given IV peripheral blood stem cell transplantation: Undergo transplantation filgrastim: Given IV fluorescence in situ hybridization: Correlative studies cytogenetic analysis: Correlative studies cyclophosphamide: Given IV autologous-autologous tandem hematopoietic stem cell transplantation: Undergo transplantation lenalidomide: Given orally
3
Phase 1 Cohort 2 (Total TMI Dose: 1200 cGy)
See Detailed Description total marrow irradiation: Undergo irradiation escalating according to the following schedule 1000cGy, 1200cGy, 1400cGy, 1600cGy, 1800cGy melphalan: Given IV peripheral blood stem cell transplantation: Undergo transplantation filgrastim: Given IV fluorescence in situ hybridization: Correlative studies cytogenetic analysis: Correlative studies cyclophosphamide: Given IV autologous-autologous tandem hematopoietic stem cell transplantation: Undergo transplantation lenalidomide: Given orally
4
Phase 1 Cohort 3 (Total TMI Dose: 1400 cGy)
See Detailed Description total marrow irradiation: Undergo irradiation escalating according to the following schedule 1000cGy, 1200cGy, 1400cGy, 1600cGy, 1800cGy melphalan: Given IV peripheral blood stem cell transplantation: Undergo transplantation filgrastim: Given IV fluorescence in situ hybridization: Correlative studies cytogenetic analysis: Correlative studies cyclophosphamide: Given IV autologous-autologous tandem hematopoietic stem cell transplantation: Undergo transplantation lenalidomide: Given orally
4
Phase 1 Cohort 4 & Phase 2 MTD (Total TMI Dose:1600 cGy)
See Detailed Description total marrow irradiation: Undergo irradiation escalating according to the following schedule 1000cGy, 1200cGy, 1400cGy, 1600cGy, 1800cGy melphalan: Given IV peripheral blood stem cell transplantation: Undergo transplantation filgrastim: Given IV fluorescence in situ hybridization: Correlative studies cytogenetic analysis: Correlative studies cyclophosphamide: Given IV autologous-autologous tandem hematopoietic stem cell transplantation: Undergo transplantation lenalidomide: Given orally
36
Phase 1 Cohort 5 (Total TMI Dose: 1800 cGy)
See Detailed Description total marrow irradiation: Undergo irradiation escalating according to the following schedule 1000cGy, 1200cGy, 1400cGy, 1600cGy, 1800cGy melphalan: Given IV peripheral blood stem cell transplantation: Undergo transplantation filgrastim: Given IV fluorescence in situ hybridization: Correlative studies cytogenetic analysis: Correlative studies cyclophosphamide: Given IV autologous-autologous tandem hematopoietic stem cell transplantation: Undergo transplantation lenalidomide: Given orally
7
Total54

Baseline characteristics

CharacteristicTotalPhase 1 Cohort 1 (Total TMI Dose: 1000 cGy)Phase 1 Cohort 2 (Total TMI Dose: 1200 cGy)Phase 1 Cohort 3 (Total TMI Dose: 1400 cGy)Phase 1 Cohort 4 & Phase 2 MTD (Total TMI Dose:1600 cGy)Phase 1 Cohort 5 (Total TMI Dose: 1800 cGy)
Age, Continuous54 years49 years56 years54 years54 years54 years
Race/Ethnicity, Customized
African American
8 Participants0 Participants0 Participants0 Participants6 Participants2 Participants
Race/Ethnicity, Customized
Asian
3 Participants0 Participants1 Participants0 Participants2 Participants0 Participants
Race/Ethnicity, Customized
Caucasian
35 Participants3 Participants2 Participants4 Participants22 Participants4 Participants
Race/Ethnicity, Customized
Hispanic
7 Participants0 Participants1 Participants0 Participants5 Participants1 Participants
Race/Ethnicity, Customized
Other
1 Participants0 Participants0 Participants0 Participants1 Participants0 Participants
Region of Enrollment
United States
54 participants3 participants4 participants4 participants36 participants7 participants
Sex: Female, Male
Female
23 Participants1 Participants2 Participants3 Participants13 Participants4 Participants
Sex: Female, Male
Male
31 Participants2 Participants2 Participants1 Participants23 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
2 / 33 / 44 / 420 / 364 / 7
other
Total, other adverse events
3 / 34 / 43 / 433 / 367 / 7
serious
Total, serious adverse events
0 / 30 / 40 / 46 / 363 / 7

Outcome results

Primary

Maximum Tolerated Dose (MTD)

The highest dose tested (Total Marrow Irradiation) in which there is no treatment related mortality and none or only one patient experienced dose limited toxicity (DLT) attributable to the study drug(s), when at least six were fully treated at that dose and fully followed for toxicity. The MTD is one dose level below the lowest dose tested in which 2 or more patients experienced DLT attributable to the treatment or there was a treatment related death. At least 6 patients will be treated at the MTD.

Time frame: 8 weeks from start of treatment, up to 2 years

Population: All patients enrolled in the dose-finding portion of the study.

ArmMeasureValue (NUMBER)
Treatment ArmMaximum Tolerated Dose (MTD)1600 cGy
Primary

Number of Subjects With Response

Response defined as complete response or very good partial response. Complete response defined as the absence of bone marrow or blood findings of multiple myeloma on at least 2 measurements at a minimum of a 6 week interval. Thus all evidence of serum and urinary M-components must disappear on electrophoresis as well as by immunofixation studies. The follow-up bone marrow may not contain more than 5% plasma cells on aspiration or core biopsy and no evidence of increasing anemia. Skeletal X-rays must either show recalcification or no change in osteolytic lesions. Resolution of soft tissue plasmocytomas. Very good partial response defined as reduction of bone marrow or blood findings of multiple myeloma on at least 2 measurements at a minimum of a 6 week interval by greater than or equal to 90%.

Time frame: Evaluated after each course until completion of treatment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Treatment ArmNumber of Subjects With Response3 Participants
Phase 1 Cohort 2 (Total TMI Dose: 1200 cGy)Number of Subjects With Response3 Participants
Phase 1 Cohort 3 (Total TMI Dose: 1400 cGy)Number of Subjects With Response2 Participants
Phase 1 Cohort 4 & Phase 2 MTD (Total TMI Dose:1600 cGy)Number of Subjects With Response20 Participants
Phase 1 Cohort 5 (Total TMI Dose: 1800 cGy)Number of Subjects With Response4 Participants
Primary

Overall Survival

Estimated using the product-limit method of Kaplan and Meier. Event defined as death due to any cause.

Time frame: From date of treatment until the date of death from any cause, assessed up to 14 years

Population: Overall survival was calculated for aggregated arms, due to small number of patients in most treatment arms.

ArmMeasureValue (MEDIAN)
Treatment ArmOverall Survival95.8 months

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