Roger M. Perlmutter
Analyst · Michael Yee with RBC Capital
Thanks, Tony. This afternoon, I will provide an update on regulatory and development activities in the fourth quarter, comment on some of the important events that we expect will occur in 2012. I'll also provide a brief overview of Micromet, a pioneering biotechnology company with a novel therapeutic platform exemplified by a promising development candidate for the treatment of acute lymphoblastic leukemia and other hematologic malignancies. As you are aware, and as Kevin mentioned, this morning we announced that Amgen has entered into a definitive agreement to acquire Micromet in an all-cash transaction. Turning then to Slide 14 with respect to XGEVA, as Tony mentioned, we've been making good progress in gaining approval for XGEVA and all major jurisdictions. In the fourth quarter, working with our partner, Daiichi Sankyo, we completed discussions with the Japanese regulatory authorities leading to the approval of denosumab as landmark for the reduction of skeletal-related events in patients with metastatic bone disease, which was announced last week. We have also been engaged in constructive conversations with the FDA regarding XGEVA in advance of the Oncologic Drugs Advisory Committee or ODAC meeting, which is scheduled for February 8. XGEVA is the first agent to show an improvement in bone metastasis-free survival in men with castrate-resistant prostate cancer. As such, there is no precedent for regulatory approval in this indication. The data that support our submission were published in significant part in The Lancet in November of last year. An editorial that accompanied this publication posed questions about the clinical significance of the observed 4-month delay in the appearance of bony metastasis, and this general topic, that is, what constitutes a clinically meaningful effect in patients with castrate-resistant nonmetastatic prostate cancer was discussed at a prior ODAC meeting in September of last year. Hence, we certainly expect that the FDA will seek advice regarding the clinical significance of an improvement in bone metastases-free survival. We look forward to these ODAC discussions as we continue to explore the best way to employ XGEVA, which is, of course, already approved in the United States to reduce skeletal-related events in men with metastatic prostate cancer and relieving the burden of bony involvement by prostatic malignancies. As noted on our slide, in the fourth quarter, the European Commission authorized the use of Vectibix as first-and second-line treatment for patients with metastatic colorectal cancer. Vectibix is our fully human antibody directed against the epidermal growth factor receptor, which has been previously approved in major markets for the treatment of metastatic colorectal cancer in patients who have failed other therapeutic regimens. In the fourth quarter, our regulatory affairs group filed an sBLA with the FDA for the use of Prolia to treat osteoporosis in men. The PDUFA date for this indication is September 20, 2012. We have previously announced top line data indicating that Prolia treatment increases bone mineral density in such patients. In addition, we received approval in the third quarter for the use of Prolia in men receiving androgen deprivation therapy for prostate cancer. In this population, Prolia treatment was shown to reduce the risk of vertebral fractures. During our third quarter earnings call, I noted that severe shortages in the availability of DOXIL, a chemotherapeutic agent from Johnson & Johnson, were affecting enrollment in one of our 2 studies of AMG 386 in ovarian cancer patients. Because of this, we were forced to suspend enrollment in this Phase III study in the fourth quarter. However, our pivotal study of AMG 386 in this indication, which employs combination therapy with paclitaxel, continues to enroll ahead of schedule. This study and our study of AMG 479 in pancreatic cancer should complete enrollment by the end of 2012. Turning then to key events that we expect during 2012, Slide 15 shows that we expect to see data from our Phase III outcome study, the EVOLVE trial, by mid-year. This is an event-driven study in which we asked whether the treatment of secondary hyperparathyroidism with Cinacalcet reduces all-cause mortality and cardiac morbidity as determined using a composite endpoint. Later in 2012, we expect that interim data will become available from our study of talimogene laherparepvec, the oncolytic virus therapy known as T-Vec. We used data related to durable responses as defined in our Special Protocol Assessment with the FDA. You will recall that enrollment in this Phase III study was increased to provide more power for observing an overall survival signal. However, we do not expect to be able to examine survival data until sometime in 2013. Two important Phase II programs will also provide data in 2012. We previously announced top line data for our large Phase II study of AMG 785, the sclerostin-binding antibody that increases bone formation in women with postmenopausal osteoporosis. These data will be presented in scientific meetings later in the year. And we will also have the opportunity to review primary data from our fracture healing studies where we asked whether administration of AMG 785 assists in resolution of tibial or hip fractures. We also expect to see data by the end of the year from 4 studies of AMG 145, our fully human antibody directed against PCSK9 that has been shown to lower LDL cholesterol levels in patients with hypercholesterolemia. Our studies explore the efficacy of AMG 145 as monotherapy or in combination with statins in statin-intolerant patients and in patients with heterozygous familial hypercholesterolemia. Finally, I wish to say a few words about our announced agreement with Micromet. Under the leadership of Patrick Baeuerle, their Scientific -- Chief Scientific Officer. Micromet has pioneered the development of Bispecific T-Cell Engaging antibodies called BiTEs. As shown on Slide 16, a typical BiTE antibody combines an antibody that activates cytotoxic T-lymphocytes shown at the top in red, with an antibody that binds an appropriate target on the surface of tumor cells. The resultant chimera, in this case exemplified by Micromet's lead molecule blinatumomab, binds the tumor cells in the patient and recruits cytotoxic T-cells, a critical part of normal immune defense to eliminate these tumor cells. This approach is powerful because cytotoxic T-cells are remarkably active, but as well because simulation of these cells yields a memory cell population that remains active over time. In the case of blinatumomab, these cytotoxic T-cells kill B lymphocytes including those cells that expand illegitimately in cases of B-lineage acute lymphoblastic leukemia. As shown on Slide 17, Phase II data presented by Micromet scientists late last year at the American Society of Hematology meetings, show that nearly 70% of patients with relapsed or refractory acute lymphoblastic leukemia achieved a complete response or a complete response with partial hematologic recovery. This level of activity in such grievously ill patients is quite remarkable. Indeed, in these responding patients, tumor cells became undetectable after treatment. Median survival in this study had not yet been achieved with a median follow-up of 9.7 months. This is far longer than what has typically been achieved with contemporary combination chemotherapy. As with all highly active cytotoxic therapies, there are adverse effects associated with blinatumomab treatment. However, at this early stage and given the impressive efficacy observed to date, these adverse effects appear manageable. In short, we believe that blinatumomab is a rare asset, a therapy that offers enormous promise for patients suffering from an aggressive, grievous malignancy where alternative therapies do not now exist. And not surprisingly, as shown on Slide 18, the BiTE platform has attracted great interest from numerous biopharmaceutical partners, including, of course, Amgen itself. We feel confident that the ability of BiTE antibodies to activate cytotoxic T lymphocytes and to trigger a memory response in these cells will prove valuable in a variety of disease settings. Hence, I'm delighted that our colleagues from Micromet will be joining Amgen and that we, at Amgen, by virtue of our special expertise in the development and manufacture of complex protein therapeutics will be able to provide the resources necessary to develop the BiTE platform for the broader benefit of patients around the world. I cannot complete my discussion without noting that the fourth quarter of 2011 will be my last full quarter at Amgen. After 11 years, I'm proud to be able to hand over the reins to my Chief Medical Officer, Sean Harper, who is with me here today. Through the work of thousands of very talented Amgen scientists, I have had the privilege of introducing new therapies that improve the lives of patients suffering from rheumatologic disease, osteoporosis, autoimmunity and the depredations of malignancy. These 11 years have passed in an instant. And in many ways, I'm tempted to continue for another 11 years, but I recognize that there is an appropriate time to let a new generation address these new challenges. I'm deeply grateful for the opportunity that I have had to serve the cause of biomedical research from this outpost, and I look forward to cheering the accomplishments of Sean and the entire Amgen team as they endeavor to bring our deep pipeline of promising new medicines to patients who desperately need better therapies. I close by thanking all of those who have helped bring us to this point. I have been inspired everyday by your efforts, and I will deeply miss working with Amgen employees around the world. Kevin?