May 13, 2016
WOODCLIFF LAKE, N.J., May 13, 2016 /PRNewswire/ -- Eisai Inc. announced today that the U.S. Food and Drug Administration (FDA) approved LENVIMA® (lenvatinib), the company's multiple receptor tyrosine kinase inhibitor, in combination with everolimus for the treatment of patients with advanced renal cell carcinoma (aRCC) who were previously treated with an anti-angiogenic therapy. This approval was based on the impressive results of the registration study (Study 205), in which the once daily combination of 18 mg LENVIMA and 5 mg everolimus demonstrated a substantial improvement in progression-free survival (PFS), powerful objective response rate (ORR) and clinically meaningful overall survival (OS) when compared with everolimus alone, a standard of care for patients with aRCC who have received prior anti-angiogenic therapy.
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"Lenvatinib plus everolimus is the first and only FDA-approved regimen that successfully combines treatments that employ tyrosine kinase and mTOR inhibition, the primary targets of advanced RCC treatment for the past decade," said Robert Motzer, M.D., Memorial Sloan Kettering Cancer Center, New York, and the principal investigator of the study. "This combination regimen led to enhanced efficacy and helped patients with advanced RCC live longer without disease progression or death than those treated with everolimus alone. These noteworthy findings advance the treatment paradigm for this patient population."
LENVIMA was granted Breakthrough Therapy designation by the FDA for this indication, and the application received Priority Review, which is assigned to drugs the FDA believes have the potential to provide a significant improvement in the treatment of a serious condition.
In Study 205, a Phase 2 trial, LENVIMA and everolimus (LEN+EVE) resulted in a median PFS nearly three times that of everolimus alone. The median PFS, or the length of time from randomization until disease progression or death, in patients treated with the combination (n=51) was 14.6 months (95% CI: 5.9–20.1) compared with 5.5 months (95% CI: 3.5–7.1) for those treated with everolimus alone (n=50) (HR 0.37; 95% CI: 0.22–0.62). The combination regimen resulted in a 63% reduction in the risk of disease progression or death compared with everolimus alone. The treatment effect of the combination on PFS was supported by a retrospective independent review.
The objective response rate was 37% (95% CI: 24–52) in patients treated with the combination regimen (35% partial response + 2% complete response) compared to 6% (all partial response, 95% CI: 1–17) in patients treated with everolimus alone.
The patients who received LEN+EVE experienced a 10.1-month increase in median OS compared with those who received everolimus monotherapy (25.5 months [95% CI: 16.4–32.1] versus 15.4 months [95% CI: 11.8–20.6]; HR 0.67; 95% CI: 0.42–1.08). This OS analysis was conducted when 63% of deaths had occurred in the combination arm and 74% of deaths had occurred in the everolimus arm.
The safety of this combination regimen was also examined in Study 205. Serious risks from treatment with the combination of LENVIMA and everolimus may include hypertension, cardiac dysfunction, arterial thromboembolic events, hepatotoxicity, proteinuria, diarrhea, renal failure and impairment, gastrointestinal perforation and fistula formation, QT interval prolongation, hypocalcemia, reversible posterior leukoencephalopathy syndrome, hemorrhagic events, impairment of thyroid-stimulating hormone suppression/thyroid dysfunction, and embryofetal toxicity. The most common adverse reactions observed in study patients treated with LENVIMA and everolimus (greater than 30%) were, in order of decreasing frequency, diarrhea, fatigue, arthralgia/myalgia, decreased appetite, vomiting, nausea, stomatitis/oral inflammation, hypertension, peripheral edema, cough, abdominal pain, dyspnea, rash, weight decreased, hemorrhagic events and proteinuria. The most common serious adverse reactions (greater than or equal to 5%) were renal failure (11%), dehydration (10%), anemia (6%), thrombocytopenia (5%), diarrhea (5%), vomiting (5%) and dyspnea (5%). Adverse reactions led to dose reductions or interruption in 89% of patients receiving LENVIMA and everolimus and 54% in patients receiving everolimus. The most common adverse reactions (greater than or equal to 5%) resulting in dose reductions in patients treated with LENVIMA and everolimus were diarrhea (21%), fatigue (8%), thrombocytopenia (6%), vomiting (6%), nausea (5%) and proteinuria (5%).
Treating physicians are likely to be familiar with many of the adverse reactions observed for this combination regimen based on their prior experience with these types of drugs. Prescribers may be able to manage certain adverse reactions (such as nausea, vomiting, diarrhea and hypertension) with a proactive plan that includes concomitant medications and/or dose reductions, interruptions and/or discontinuations.
"Rates of renal cell carcinoma have been on the rise over the past several decades, and unfortunately, advanced RCC remains an incurable disease. Since the VEGF pathway is known to be involved in the growth of renal cell tumors, it is important to have a diverse offering of therapeutic options, including treatments that continue to target VEGF inhibition," said Sumanta Kumar Pal, M.D., Assistant Professor, Department of Medical Oncology & Therapeutics Research and Co-Director, Kidney Cancer Program at City of Hope in Duarte, Calif. "The combination regimen of lenvatinib and everolimus provides a new treatment for patients with advanced RCC whose disease continues to progress despite prior treatment with an anti-angiogenic therapy."
LENVIMA was first approved in the U.S. on February 13, 2015, for patients with locally recurrent or metastatic, progressive, radioactive iodine-refractory differentiated thyroid cancer (DTC).
"By bringing this breakthrough treatment to patients with advanced RCC, Eisai now offers an efficacious option in a second difficult-to-treat tumor type, just 15 months after its initial approval, and we look forward to continued exploration of LENVIMA in additional malignancies," said Alton Kremer, M.D., Ph.D., Chief Clinical Officer and Chief Medical Officer, Oncology Business Group at Eisai. "This also marks the second time in four months that one of Eisai's oncology treatments has been granted a new indication following Priority Review from the FDA. These milestones, as well as the ongoing development of innovative agents in our pipeline, underscore our steadfast commitment to Eisai's human health care (hhc) mission of identifying and addressing the unmet needs of people living with cancer."
About Study 205
Study 205, the Phase 2 study, was a multicenter, randomized trial in patients (n=153) with unresectable advanced or metastatic RCC who were previously treated with an anti-angiogenic therapy and randomized 1:1:1 to receive a combination of 18 mg LENVIMA plus 5 mg everolimus once a day, LENVIMA only (24 mg once a day) or everolimus only (10 mg once a day) administered orally in continuous 28-day cycles until disease progression or unacceptable toxicity. The primary efficacy endpoint of this study was investigator-assessed PFS. Other endpoints of the study included ORR, OS and safety.
The results of this study were published online in The Lancet Oncology in October 2015, following an oral presentation at the 2015 American Society of Clinical Oncology (ASCO) Annual Meeting.
About Renal Cell Carcinoma
Renal cell carcinoma (RCC), also known as renal cell cancer or renal cell adenocarcinoma, is the most common type of kidney cancer, representing about 90% of cases in the United States. Renal cell carcinoma occurs when malignant cells are found in the lining of the tubules in the kidney. While RCC usually grows as a single tumor within a kidney, there may also be two or more tumors in one or both kidneys. In 2016, it is estimated that there will be approximately 62,700 new cases of kidney cancer, and about 14,240 people will die from the disease. Approximately 16% of patients with RCC will have metastases at diagnosis, and as many as 40% will demonstrate metastasis after primary surgical treatment for localized RCC. With a 5-year survival rate ranging from 5% to 12%, the prognosis for these patients is poor.
About LENVIMA® (lenvatinib)
LENVIMA® (lenvatinib) is a kinase inhibitor that is indicated for:
Lenvatinib, discovered and developed by Eisai, is a receptor tyrosine kinase (RTK) inhibitor that inhibits the kinase activities of vascular endothelial growth factor (VEGF) receptors VEGFR1-3. Lenvatinib also inhibits other RTKs that have been implicated in pathogenic angiogenesis, tumor growth, and cancer progression in addition to their normal cellular functions, including fibroblast growth factor (FGF) receptors FGFR1-4; the platelet derived growth factor receptor alpha (PDGFRα), KIT, and RET. The combination of lenvatinib and everolimus showed increased anti-angiogenic and anti-tumor activity as demonstrated by decreased human endothelial cell proliferation, tube formation, and VEGF signaling in vitro and tumor volume in mouse xenograft models of human renal cell cancer greater than each drug alone.
Important Safety Information
Warnings and Precautions
Use in Specific Populations
For more information about LENVIMA, click here for the full Prescribing Information.
About Eisai Inc.
At Eisai Inc., human health care is our goal. We give our first thoughts to patients and their families, and helping to increase the benefits health care provides. As the U.S. pharmaceutical subsidiary of Tokyo-based Eisai Co., Ltd., we have a passionate commitment to patient care that is the driving force behind our efforts to discover and develop innovative therapies to help address unmet medical needs.
Eisai is a fully integrated pharmaceutical business that operates in two global business groups: oncology and neurology (dementia-related diseases and neurodegenerative diseases). Each group functions as an end-to-end global business with discovery, development, manufacturing and marketing capabilities. Our U.S. headquarters, commercial and clinical development organizations are located in New Jersey; our discovery labs are in Massachusetts and Pennsylvania; and our global demand chain organization resides in Maryland and North Carolina. To learn more about Eisai Inc., please visit us at www.eisai.com/US.
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