Celgene Corporation
Dec 13, 2011
PDF
Add to Briefcase

Final Phase II Data Evaluating REVLIMID® and Rituximab in Patients with Relapsed or Refractory Chronic Lymphocytic Leukemia

The Study Reported Overall Response Rate of 66%, With 12% of Patients Achieving Complete Response

After a Median follow-up of 31 Months, Overall Survival Was 75%

BOUDRY, Switzerland--(BUSINESS WIRE)--Dec. 13, 2011-- Celgene International Sàrl, a subsidiary of Celgene Corporation, (NASDAQ: CELG), announced final results from a phase II investigational study evaluating the combination of REVLIMID® (lenalidomide) and rituximab in 59 patients with relapsed or refractory chronic lymphocytic leukemia (CLL). These data were presented at the 53rd Annual Meeting of the American Society of Hematology in San Diego, CA.

In the study, 59 patients received rituximab 375 mg/m2 intravenously weekly for four weeks in cycle one, and then once every four weeks during cycles three to 12. Oral lenalidomide 10 mg/day was started on day nine of cycle one and then on a continuous dosing schedule. Cycles were 28 days with intention to continue therapy for 12 cycles or longer if the patient experienced a clinical response. Dose reductions were made for grade 3 or 4 hematological toxicity. Tumor lysis syndrome (TLS) prophylaxis comprising allopurinol 300 mg daily was administered during the first two weeks of cycle one.

All 59 patients were evaluable for response, with evaluations performed after cycles three, six, and every six cycles thereafter. In the study, the overall response rate was 66% (38/59) with seven patients (12%) achieving a complete response, seven patients (12%) achieving nodular partial responses, and 25 patients (42%) achieving partial responses.

At a median follow-up of 31 months, the estimated overall survival rate was 75%, and progression-free survival was 17.4 months.

Grade 3 or 4 hematologic toxicities included neutropenia (73%, n=43/59), thrombocytopenia (35%, n=20/59) and anemia (15%, n=9/59). Grade 3 or 4 infections occurred in 18 patients (31%). One patient experienced grade 3 TLS. Tumor flare reactions, all of which were grade 1 or 2, occurred in 16 patients (27%). Four deaths occurred during the study, including one due to stroke, one due to infectious exacerbation of chronic obstructive pulmonary disease and one from an unrelated cardiac arrhythmia. Colon cancer was diagnosed in one patient and myelodysplastic syndromes (MDS) in another, at 10 and six months after initiation of therapy, respectively. There were also two incidences of skin cancers and one recurrence of a head/neck cancer.

These data are from an investigational study. REVLIMID is not approved as a treatment for patients with chronic lymphocytic leukemia.

About REVLIMID®

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 Europe, the Americas, the Middle-East and Asia, and in combination with dexamethasone for the treatment of patients whose disease has progressed after one therapy in Australia and New Zealand.

REVLIMID is also approved in the United States, Canada, Switzerland, Australia, New Zealand and several Latin American countries, as well as Malaysia and Israel, for transfusion-dependent anaemia due to low- or intermediate-1-risk MDS associated with a deletion 5q cytogenetic abnormality with or without additional cytogenetic abnormalities. Marketing Authorization Applications are currently being evaluated in a number of other countries.

Since 1998, Celgene continues to be a pioneer in creating environments in which patients can benefit from our disease-altering therapies safely. As a result, hundreds of thousands of patients worldwide have accessed the clinical benefits of our therapies through our performance-based risk management programs including, S.T.E.P.S.®, RevAssist® and RevMate®, which form the foundation of our commitment to patient safety.

REVLIMID® (lenalidomide) in combination with dexamethasone is indicated for the treatment of multiple myeloma (MM) patients who have received at least one prior therapy.

REVLIMID is indicated for patients with transfusion-dependent anaemia 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: FETAL RISK, HEMATOLOGIC TOXICITY, and DEEP VEIN THROMBOSIS AND PULMONARY EMBOLISM

 

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 death to a developing baby. In women of childbearing potential, obtain 2 negative pregnancy tests before starting REVLIMID treatment. Women of childbearing potential must use 2 forms of contraception or continuously abstain from heterosexual sex during and for 4 weeks after REVLIMID treatment. To avoid fetal exposure to lenalidomide, REVLIMID is only available under a restricted distribution program called “RevAssist®.”

 

Information about the RevAssist program is available at www.REVLIMID.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. (see DOSAGE and ADMINISTRATION)

 

DEEP VEIN THROMBOSIS AND PULMONARY EMBOLISM

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 thromboembolic events. The decision to take prophylactic measures should be done carefully after an assessment of an individual patient’s underlying risk factors.

 

CONTRAINDICATIONS:

Pregnancy Category X:

Allergic Reactions:

WARNINGS AND PRECAUTIONS:

Fetal Risk:

Reproductive Risk and Special Prescribing Requirements (RevAssist Program):

Hematologic Toxicity—Multiple Myeloma:

Deep Vein Thrombosis:

Allergic Reactions:

Tumour Lysis Syndrome:

Tumour Flare Reaction:

DRUG INTERACTIONS:



USE IN SPECIAL POPULATIONS:

Nursing Mothers:

Geriatric Use:

Renal Impairment:

ADVERSE REACTIONS:

Multiple Myeloma

Myelodysplastic Syndromes

DOSAGE AND ADMINISTRATION:

Please see full Prescribing Information, including Boxed WARNINGS, CONTRAINDICATIONS, PRECAUTIONS, and ADVERSE REACTIONS.

About Chronic Lymphocytic Leukaemia

CLL is the most common type of leukaemia in adults, accounting for approximately 30-40% of all forms of leukaemia in Western countries. Overall incidence of CLL is around four per 100,000 and is 50% more common in men than in women. CLL is currently considered incurable; therefore the aim of treatment is to control the disease by managing symptoms and extending the time patients live without their disease worsening.

About Celgene International Sàrl

Celgene International Sàrl, located in Boudry, in the Canton of Neuchâtel, Switzerland, is a wholly owned subsidiary and international headquarters of Celgene Corporation. Celgene Corporation, headquartered in Summit, New Jersey, is an integrated global pharmaceutical company engaged primarily in the discovery, development and commercialization of innovative therapies for the treatment of cancer and inflammatory diseases through gene and protein regulation. For more information, please visit the Company's website at www.celgene.com.

Forward-Looking Statements

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 Securities and Exchange Commission.

Source: Celgene International Sàrl

Celgene International Sàrl
Investors:
+41 32 729 8303
ir@celgene.com
or
Media:
+41 32 729 8304
media@celgene.com