In the study, conducted by the Gruppo Italiano Malattie EMatologiche
dell’Adulto (GIMEMA), and presented by lead investigator, Prof.
After a median follow-up of 49 months from diagnosis, median progression-free survival (PFS), the primary endpoint of the study, was 24 months with MPR compared to 38 months with MEL200 (HR 1.69, p<0.0001). ). The five-year overall survival (OS) rate was 62% (125/202) for MPR compared to 71% (142/200) for MEL200 (HR 1.25, p=0.27).
In the maintenance analysis, with a median follow-up of 35 months, patients receiving lenalidomide maintenance following either regimen, had a median PFS of 37 months compared to 26 months for observation (HR 0.52, p<0.0001). In addition, for patients receiving lenalidomide maintenance, the five-year OS rate was 75% (149/198) compared to 58% (118/204) for patients being observed until disease progression (HR 0.62, p=0.02) equating to a 38% reduction in the risk of death for patients receiving continuous lenalidomide maintenance therapy.
The most common grade 3/4 adverse events observed during the maintenance phase of the study were neutropenia (23%), cutaneous toxicity (5%), infections (4%), second primary malignancies (4%), thrombocytopenia (4%), diarrhea (3%), fatigue (3%) and anemia (2%).
These results are from an investigational study. REVLIMID® is not approved for the treatment of patients with newly-diagnosed multiple myeloma.
REVLIMID is approved in combination with dexamethasone for the treatment
of patients with multiple myeloma who have received at least one prior
therapy, in nearly 70 countries, encompassing
REVLIMID is approved in
U.S. Regulatory Information for Revlimid
REVLIMID® (lenalidomide) in combination with dexamethasone is indicated for the treatment of patients with multiple myeloma (MM) who have received at least one prior therapy.
REVLIMID® (lenalidomide) is indicated for the treatment of patients with transfusion-dependent anemia due to low- or intermediate-1–risk myelodysplastic syndromes (MDS) associated with a deletion 5q cytogenetic abnormality with or without additional cytogenetic abnormalities.
Important Safety Information
WARNING: EMBRYO-FETAL TOXICITY, HEMATOLOGIC TOXICITY, and VENOUS THROMBOEMBOLISM
Do not use REVLIMID during pregnancy. Lenalidomide, a thalidomide analogue, caused limb abnormalities in a developmental monkey study. Thalidomide is a known human teratogen that causes severe life-threatening human birth defects. If lenalidomide is used during pregnancy, it may cause birth defects or embryo-fetal death. In females of reproductive potential, obtain 2 negative pregnancy tests before starting REVLIMID treatment. Females of reproductive potential must use 2 forms of contraception or continuously abstain from heterosexual sex during and for 4 weeks after REVLIMID treatment. To avoid embryo-fetal exposure to lenalidomide, REVLIMID is only available through a restricted distribution program, the REVLIMID REMS™ program (formerly known as the “RevAssist®”program).
Information about the REVLIMID REMS™ Program is available at www.celgeneriskmanagement.com or by calling the manufacturer’s toll-free number 1-888-423-5436.
HEMATOLOGIC TOXICITY (Neutropenia and Thrombocytopenia)
REVLIMID can cause significant neutropenia and thrombocytopenia. Eighty percent of patients with del 5q MDS had to have a dose delay/reduction during the major study. Thirty-four percent of patients had to have a second dose delay/reduction. Grade 3 or 4 hematologic toxicity was seen in 80% of patients enrolled in the study. Patients on therapy for del 5q MDS should have their complete blood counts monitored weekly for the first 8 weeks of therapy and at least monthly thereafter. Patients may require dose interruption and/or reduction. Patients may require use of blood product support and/or growth factors.
REVLIMID has demonstrated a significantly increased risk of deep vein thrombosis (DVT) and pulmonary embolism (PE) in patients with MM who were treated with REVLIMID and dexamethasone therapy. Patients and physicians are advised to be observant for the signs and symptoms of thromboembolism. Patients should be instructed to seek medical care if they develop symptoms such as shortness of breath, chest pain, or arm or leg swelling. It is not known whether prophylactic anticoagulation or antiplatelet therapy prescribed in conjunction with REVLIMID may lessen the potential for venous thromboembolism. The decision to take prophylactic measures should be done carefully after an assessment of an individual patient’s underlying risk factors.
WARNINGS AND PRECAUTIONS
REVLIMID REMS™ Program
Because of embryo-fetal risk, REVLIMID is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) the REVLIMID REMS Program (formerly known as the “RevAssist®” Program). Prescribers and pharmacies must be certified with the program and patients must sign an agreement form and comply with the requirements. Further information about the REVLIMID REMS program is available at www.celgeneriskmanagement.com or by telephone at 1-888-423-5436
Hematologic Toxicity—Multiple Myeloma: REVLIMID can cause significant neutropenia and thrombocytopenia. Patients taking REVLIMID for MM should have their complete blood counts monitored every 2 weeks for the first 12 weeks and then monthly thereafter. In the pooled MM studies Grade 3 and 4 hematologic toxicities were more frequent in patients treated with the combination of REVLIMID and dexamethasone than in patients treated with dexamethasone alone. Patients may require dose interruption and/or dose reduction
Venous Thromboembolism: Venous thromboembolic events (predominantly deep venous thrombosis and pulmonary embolism) have occurred in patients with MM treated with lenalidomide combination therapy and patients with MDS treated with lenalidomide monotherapy
Allergic Reactions: Angioedema and serious dermatologic reactions including Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) have been reported. These events can be fatal. Patients with a prior history of Grade 4 rash associated with thalidomide treatment should not receive REVLIMID. REVLIMID interruption or discontinuation should be considered for Grade 2-3 skin rash. REVLIMID must be discontinued for angioedema, Grade 4 rash, exfoliative or bullous rash, or if SJS or TEN is suspected, and should not be resumed following discontinuation for these reactions. REVLIMID capsules contain lactose. Risk-benefit of REVLIMID treatment should be evaluated in patients with lactose intolerance
Tumor Lysis Syndrome: Fatal instances of tumor lysis syndrome have been reported during treatment with lenalidomide. The patients at risk of tumor lysis syndrome are those with high tumor burden prior to treatment. These patients should be monitored closely and appropriate precautions taken
Tumor Flare Reaction: Tumor flare reaction has occurred during investigational use of lenalidomide for chronic lymphocytic leukemia (CLL) and lymphoma, and is characterized by tender lymph node swelling, low grade fever, pain and rash. Treatment of CLL or lymphoma with lenalidomide outside of a well-monitored clinical trial is discouraged
Hepatotoxicity: Cases of transient liver laboratory abnormalities (predominantly transaminases) were reported in patients treated with lenalidomide. Treatment with lenalidomide should be interrupted until the levels return to baseline. Successful re-challenge without recurrence of liver laboratory elevation was reported in some patients
Second Primary Malignancies: Patients with MM treated with lenalidomide in studies including melphalan and stem cell transplantation had a higher incidence of second primary malignancies, particularly acute myelogenous leukemia (AML) and Hodgkin lymphoma, compared to patients in the control arms who received similar therapy but did not receive lenalidomide. Monitor patients for the development of second malignancies. Take into account both the potential benefit of lenalidomide and the risk of second primary malignancies when considering treatment with lenalidomide
Periodic monitoring of digoxin plasma levels, in accordance with clinical judgment and based on standard clinical practice in patients receiving this medication, is recommended during administration of REVLIMID. It is not known whether there is an interaction between dexamethasone and warfarin. Close monitoring of PT and INR is recommended in MM patients taking concomitant warfarin. Erythropoietic agents, or other agents, that may increase the risk of thrombosis, such as estrogen containing therapies, should be used with caution in MM patients receiving lenalidomide with dexamethasone
USE IN SPECIFIC POPULATIONS
Pregnancy: If pregnancy does occur during treatment, immediately
discontinue the drug. Under these conditions, refer patient to an
obstetrician/gynecologist experienced in reproductive toxicity for
further evaluation and counseling. Any suspected fetal exposure to
REVLIMID must be reported to the
Nursing Mothers: It is not known whether REVLIMID is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for adverse reactions in nursing infants, a decision should be made whether to discontinue nursing or the drug, taking into account the importance of the drug to the mother
Pediatric Use: Safety and effectiveness in pediatric patients below the age of 18 have not been established
Geriatric Use: Since elderly patients are more likely to have decreased renal function, care should be taken in dose selection. Monitor renal function
Renal Impairment: Since REVLIMID is primarily excreted unchanged by the kidney, adjustments to the starting dose of REVLIMID are recommended to provide appropriate drug exposure in patients with moderate (CLcr 30-60 mL/min) or severe renal impairment (CLcr < 30 mL/min) and in patients on dialysis
Please see full Prescribing Information, including Boxed WARNINGS, CONTRAINDICATIONS, WARNINGS AND PRECAUTIONS, and ADVERSE REACTIONS
This press release contains forward-looking statements, which are
generally statements that are not historical facts. Forward-looking
statements can be identified by the words "expects," "anticipates,"
"believes," "intends," "estimates," "plans," "will," “outlook” and
similar expressions. Forward-looking statements are based on
management’s current plans, estimates, assumptions and projections, and
speak only as of the date they are made. We undertake no obligation to
update any forward-looking statement in light of new information or
future events, except as otherwise required by law. Forward-looking
statements involve inherent risks and uncertainties, most of which are
difficult to predict and are generally beyond our control. Actual
results or outcomes may differ materially from those implied by the
forward-looking statements as a result of the impact of a number of
factors, many of which are discussed in more detail in our Annual Report
on Form 10-K and our other reports filed with the