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Lenalidomide, Cyclophosphamide, and Dexamethasone in Treating Patients With Primary Systemic Amyloidosis

This study has been completed.
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Mayo Clinic Identifier:
First received: November 28, 2007
Last updated: April 10, 2013
Last verified: April 2013

RATIONALE: Biological therapies, such as lenalidomide, may stimulate the immune system in different ways and stop plasma cells from growing. Drugs used in chemotherapy, such as cyclophosphamide and dexamethasone, work in different ways to stop the growth of plasma cells, either by killing the cells or by stopping them from dividing. Giving lenalidomide together with cyclophosphamide and dexamethasone may be an effective treatment for primary systemic amyloidosis.

PURPOSE: This phase II trial is studying how well giving lenalidomide together with cyclophosphamide and dexamethasone works in treating patients with primary systemic amyloidosis.

Condition Intervention Phase
Multiple Myeloma and Plasma Cell Neoplasm
Drug: cyclophosphamide
Drug: dexamethasone
Drug: lenalidomide
Phase 2

Study Type: Interventional
Study Design: Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase II Trial of Lenalidomide (Revlimid®), Cyclophosphamide and Dexamethasone in Patients With Primary Systemic Amyloidosis

Resource links provided by NLM:

Further study details as provided by Mayo Clinic:

Primary Outcome Measures:
  • Number of Participants Who Achieved a Confirmed Response Defined as a Complete Response (CR), Very Good Partial Response (VGPR) or Partial Response (PR) [ Time Frame: Duration on study (up to 3 years) ]

    Response that was confirmed on 2 consecutive evaluations during treatment.

    Complete Response(CR): Complete disappearance of M-protein from serum and urine on immunofixation, normalization of Free Light Chain (FLC) ratio and <5% plasma cells in bone marrow.

    Very Good Partial Response(VGPR): >=90% reduction in serum M-component; Urine M-Component <=100 mg per 24 hours.

    Partial Response(PR): >=50% reduction in serum M-component and/or Urine M-Component >=90% reduction or <200 mg per 24 hours; or >=50% decrease in difference between involved and uninvolved FLC levels.

Secondary Outcome Measures:
  • Number of Patients With Organ Response [ Time Frame: Duration of study (up to 3 years) ]

    Organ response was evaluated on the basis of improvement of one or more affected organ; only one parameter was required to satisfy the criteria. Response needed to be maintained for a minimum of 3 months to be considered valid.

    Renal response required a 50% reduction in 24-hour urine protein excretion (at least 0.5 g/d) with stable creatinine. Cardiac response required one of >= 2-mm reduction in the interventricular septal (IVS) thickness by echocardiogram, or improvement of ejection fraction by >= 20%, or improvement by 2 NYHA classes without an increase in diuretic use. Hepatic response required either >= 50% decrease in (or normalization of) an initially elevated alkaline phosphatase level or reduction in the size of the liver by at least 2 cm by radiographic determination. Gastrointestinal tract improvement was defined as normalization of a low serum carotene level, or reduction of diarrhea to < 50% of previous movements/day, or decrease in fecal fat excretion by 50%.

  • Number of Participants With Severe Adverse Events [ Time Frame: Duration of study (up to 3 years) ]
    Severe adverse events were defined as grade 3 or higher, at least possibly related to study drugs. Adverse events were graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) version 3.

  • Progression Free Survival (PFS) [ Time Frame: Duration of study (up to 3 years) ]
    Progression free survival (PFS) was defined as the time from registration to hematologic progression or death of any cause. Progression free and alive patients were censored at the date of last follow-up. The median PFS with 95% CI was estimated using the Kaplan Meier method.

  • Overall Survival (OS) [ Time Frame: Duration of study (up to 3 years) ]
    Overall survival (OS) was defined as the time from registration to death of any cause. Surviving patients were censored at the date of last follow-up. The median OS with 95% CI was estimated using the Kaplan Meier method.

Enrollment: 35
Study Start Date: December 2007
Study Completion Date: June 2012
Primary Completion Date: February 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: CRD

Lenalidomide 15mg daily (days 1-21)

Cyclophosphamide 300 mg/m^2 (days 1, 8, 15)

Dexamethasone 40 mg weekly

Drug: cyclophosphamide
300 mg/m^2 days 1, 8 & 15 of a 28 day cycle taken orally with food
Drug: dexamethasone
40 mg weekly taken orally
Drug: lenalidomide
15 mg daily days 1-21 of a 28 day cycle taken orally with food

Detailed Description:



* Assess the hematologic response rate in patients with primary systemic amyloidosis treated with lenalidomide, cyclophosphamide, and dexamethasone.


  • Determine the organ response rate in patients treated with this regimen.
  • Determine the toxicity of this regimen in these patients.
  • Determine the time to progression in patients treated with this regimen.
  • Determine the survival of patients treated with this regimen.

OUTLINE: Patients receive oral lenalidomide on days 1-21, oral cyclophosphamide* on days 1, 8, and 15, and oral dexamethasone on days 1, 8, 15, and 22. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.

NOTE: *Patients may receive cyclophosphamide for up to 1 year. After completion of study treatment, patients are followed every 6 months for up to 3 years.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No


  • Histochemical diagnosis of AL amyloidosis based on detection of green birefringent material in Congo red-stained tissue specimens by polarizing microscopy
  • Measurable disease, as defined by one of the following:

    • Serum monoclonal protein ≥ 1.0 g by serum electrophoresis
    • Urine monoclonal protein > 200 mg by 24-hour urine electrophoresis
    • Serum immunoglobulin free light chain ≥ 10 mg/dL AND abnormal serum immunoglobulin kappa to lambda free light chain ratio
  • Symptomatic organ involvement with amyloid to justify therapy

    • May include liver involvement, cardiac involvement, renal involvement, grade 1 peripheral neuropathy, or soft tissue involvement
    • Must have more than skin purpura or carpal tunnel syndrome
  • No amyloid-specific syndrome, such as carpal tunnel syndrome or skin purpura, as only evidence of disease

    - Vascular amyloid only in a bone marrow biopsy specimen or in a plasmacytoma is not indicative of systemic amyloidosis

  • No clinically overt multiple myeloma (i.e., monoclonal BMPC > 30%, bone lesions, or hypercalcemia)


  • ECOG performance status 0-2
  • ANC ≥ 1,000/μL
  • Platelet count ≥ 75,000/μL
  • Creatinine < 3.0 mg/dL
  • Not pregnant
  • Negative pregnancy test
  • Fertile patients must use two acceptable methods of contraception for ≥ 28 days prior to, during, and for ≥ 28 days after completion of study treatment
  • No nursing during and for ≥ 28 days after completion of study treatment
  • No blood, semen, or sperm donation during and for ≥ 28 days after completion of study treatment
  • No malignancies within the past 5 years except treated basal cell or squamous cell carcinoma of the skin, or carcinoma "in situ" of the cervix or breast
  • No neuropathy ≥ grade 2, defined as motor neuropathy (symptomatic weakness interfering with function, but not interfering with activities of daily living [ADL]) or sensory neuropathy (sensory alteration or paresthesia [including tingling], interfering with function, but not interfering with ADL)
  • No uncontrolled infection
  • No syncope within the past 30 days
  • No known hypersensitivity to thalidomide, including desquamating rash with thalidomide in the past
  • No known seropositivity for HIV
  • No active hepatitis A, B, or C
  • No New York Heart Association class III or IV heart disease
  • No venous thromboembolic event within the past 42 days
  • Able to take aspirin (81 or 325 mg) daily as prophylactic anticoagulation - Patients intolerant to aspirin may use low molecular weight heparin


  • No prior lenalidomide
  • More than 2 weeks since prior and no other concurrent anticancer agents or treatments
  • More than 4 weeks since prior experimental agents
  • No other concurrent corticosteroids except chronic steroids (maximum dose 20 mg/day of prednisone equivalent) for disorders other than amyloidosis (e.g., adrenal insufficiency or rheumatoid arthritis)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00564889

United States, Arizona
Mayo Clinic in Arizona
Scottsdale, Arizona, United States, 85259-5499
United States, Florida
Mayo Clinic in Florida
Jacksonville, Florida, United States, 32224
United States, Minnesota
Mayo Clinic
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
Mayo Clinic
National Cancer Institute (NCI)
Study Chair: Shaji K. Kumar, MD Mayo Clinic
Principal Investigator: Craig B. Reeder, MD Mayo Clinic
Principal Investigator: Vivek Roy, MD, FACP Mayo Clinic
  More Information

Responsible Party: Mayo Clinic Identifier: NCT00564889     History of Changes
Other Study ID Numbers: MC0685
P30CA015083 ( US NIH Grant/Contract Award Number )
MC0685 ( Other Identifier: Mayo Clinic Cancer Center )
NCI-2010-01954 ( Other Identifier: NCI CTRP )
06-005711 ( Other Identifier: Mayo Clinic IRB )
Study First Received: November 28, 2007
Results First Received: July 19, 2011
Last Updated: April 10, 2013

Keywords provided by Mayo Clinic:
primary systemic amyloidosis

Additional relevant MeSH terms:
Multiple Myeloma
Neoplasms, Plasma Cell
Neoplasms by Histologic Type
Hemostatic Disorders
Vascular Diseases
Cardiovascular Diseases
Blood Protein Disorders
Hematologic Diseases
Hemorrhagic Disorders
Lymphoproliferative Disorders
Immunoproliferative Disorders
Immune System Diseases
Proteostasis Deficiencies
Metabolic Diseases
Dexamethasone acetate
Dexamethasone 21-phosphate
BB 1101
Anti-Inflammatory Agents
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs processed this record on April 21, 2017