Melphalan, Prednisone, and Lenalidomide in Treating Patients With Newly Diagnosed Multiple Myeloma

Mayo Clinic33 enrolled

Overview

RATIONALE: Drugs used in chemotherapy, such as melphalan, prednisone, and lenalidomide, work in different ways to stop the growth of cancer cells, either by killing the cells or by stopping them from dividing. Giving more than one drug (combination chemotherapy) may kill more cancer cells. PURPOSE: This phase I/II trial is studying the side effects and best dose of melphalan and lenalidomide when given together with prednisone and to see how well they work in treating patients with newly diagnosed multiple myeloma.

OBJECTIVES: Primary * Determine the maximum tolerated dose of melphalan and lenalidomide in combination with prednisone in patients with newly diagnosed multiple myeloma. * Determine the response rate in patients treated with this regimen. Secondary * Determine the toxicity of this regimen in these patients. OUTLINE: This is a dose-escalation study of melphalan and lenalidomide followed by a phase II study. * Phase I: Patients receive oral melphalan and oral prednisone daily on days 1-4. Patients also receive oral lenalidomide daily on days 1-21. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity. Cohorts of 3-6 patients receive escalating doses of melphalan and lenalidomide until the maximum tolerated dose (MTD) is determined. The MTD is defined as the dose preceding that at which 2 of 3 or 2 of 6 patients experience dose-limiting toxicity. \* Phase II: Patients receive oral melphalan and oral lenalidomide as in phase I at the MTD. Patients also receive oral prednisone as in phase I. Treatment repeats every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed every 3 months for 3 years.

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Multiple Myeloma and Plasma Cell Neoplasm

Interventions

lenalidomideDRUG

Phase I - dose escalating: 5mg level -1, 10mg level 0, 10mg level 1, 15mg level 2, 20mg level 3, 25mg level 4, orally days 1-21 every 28 days until progression Phase II - 10 mg orally days 1-21 every 28 days until progression

melphalanDRUG

Phase I - dose escalating: 5mg/m\^2 dose level -1, 5 mg/m\^2 dose level 0, 8 mg/m\^2 dose level 1 - 4, daily x 4 orally days every 28 days until progression Phase II - 5mg/m\^2 orally days 1-4 every 28 days until progression

prednisoneDRUG

60mg/m\^2, orally days 1-4 every 28 days until progression

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

DISEASE CHARACTERISTICS: * Diagnosis of multiple myeloma * Newly diagnosed disease * Requires treatment, in the judgment of the treating physician * Not a candidate for (or patient declines) autologous stem cell transplantation * Meets 1 of the following criteria: * Measurable disease, defined by any of the following: * Serum monoclonal protein ≥ 1 g/dL * Urine protein monoclonal light chain ≥ 200 mg/24 hours by electrophoresis * Measurable serum free light chains ≥ 10 mg/dL, kappa or lambda, AND κ/λ ratio is abnormal (if serum and urine are not measurable as defined above) * Evaluable disease, defined as monoclonal bone marrow plasmacytosis ≥ 30% PATIENT CHARACTERISTICS: * ECOG performance status 0-3 * Life expectancy \> 3 months * ANC ≥ 1,500/mm³ * Bilirubin ≤ 2.0 mg/dL * Alkaline phosphatase ≤ 3 times upper limit of normal (ULN) * AST ≤ 3 times ULN * Creatinine ≤ 3.0 mg/dL * Platelet count ≥ 100,000/mm³ * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use 2 effective methods of contraception, including ≥ 1 highly effective method, ≥ 4 weeks before and during study treatment * No uncontrolled infection * No peripheral neuropathy ≥ grade 2 * No serious medical condition, laboratory abnormality, or psychiatric illness that would preclude study compliance * No other active malignancy except for nonmelanoma skin cancer or carcinoma in situ \- Prior malignancy allowed if treated with curative intent and is free of disease for a period appropriate for that cancer * No known hypersensitivity to thalidomide * No known HIV positivity * No infectious hepatitis A, B or C * No history of deep vein thrombosis or other medical condition requiring the use of warfarin * Able to take daily prophylactic acetylsalicylic acid (81 or 325 mg) PRIOR CONCURRENT THERAPY: * See Disease Characteristics * More than 4 weeks since prior radiotherapy for treatment of multiple myeloma * No prior lenalidomide * No other concurrent anticancer agents or treatments * No concurrent steroids except prednisone ≤ 20 mg/day (or the equivalent) for concurrent illness or adrenal replacement therapy * No other concurrent investigational therapy or agent for treatment of multiple myeloma * No concurrent warfarin

Locations (3)

Mayo Clinic in Arizona

Scottsdale, Arizona, United States

Mayo Clinic in Florida

Jacksonville, Florida, United States

Mayo Clinic

Rochester, Minnesota, United States

Outcomes

Primary Outcomes

Patients With Overall Confirmed Response

Response that was confirmed on 2 consecutive evaluations.\> * Complete Response (CR): Complete disappearance of M-protein from serum and urine on immunofixations, normalization of Free Light Chain (FLC) ratio and \<=5% plasma cells in bone marrow\> * Very Good Partial Response (VGPR): \>=90% reduction in serum M-spike, Urine M-spike \<100mg per 24 hours\> * Partial Response (PR): \>=50% reduction in serum M-spike, Urine M-spike \>=90% reduction or \< 200mg per 24 hours, or \>=50% decrease in difference between involved and uninvolved FLC levels or 50% decrease in bone marrow plasma cells

Time frame: Every cycle during treatment

Secondary Outcomes

Progression-free Survival

Progression free survival (PFS) is defined as the time from the date of randomization to the date of disease progression or death resulting from any cause, whichever comes first. Progression was defined as any one or more of the following: An increase of 25% from lowest confirmed response in: * Serum M-component (absolute increase \>= 0.5g/dl) * Urine M-component (absolute increase \>= 200mg/24hour * Difference between involved and uninvolved Free Light Chain levels (absolute increase \>= 10mg/dl * Bone marrow plasma cell percentage (absolute increase of \>=10%)

Time frame: registration to progressive disease (up to 3 years)

Overall Survival (OS) at 3 Years

OS was defined as the time from registration to death due to any cause. Patients who were alive were censored at date of last follow-up. The overall survival at 3 years (a percentage) is reported below.

Time frame: registration to death (up to 3 years)

Duration of Response (DOR)

Duration of response was calculated from documentation of first response to date of progression in the subset of patients who responded. Patients without progression were censored at the date of last tumor evaluation.

Time frame: from first response to progression or death (up to 3 years)

Data from ClinicalTrials.gov

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