Douglas Edward Williams
Analyst · Thomas Wei from Jefferies
Thanks, George. During Q1, we continued to make progress on several aspects of our R&D programs, starting with important advances on the regulatory front. This quarter, the FDA approved the AVONEX PEN, the first intramuscular auto injector, and simultaneously approved AVOSTARTGRIP, a new dose titration regimen. As you know, we submitted BG-12 for marketing approval with the FDA and EMA earlier this year. As George indicated, we believe we are on track for the U.S. review process and expect a confirmatory letter in the coming weeks stating that our NDA has been accepted. In addition the European Medicines Agency, or EMA, has validated Biogen Idec's marketing authorization application for a review of BG-12 in the European Union, and we recently filed for marketing approval of BG-12 in Canada and Switzerland. The NDA filing for BG-12 was the largest Biogen Idec has done to date, and it was the commitment of many dedicated people that made this happen. We continue to move closer to making this potential new oral treatment for MS available for patients. Last week, important data on our neurology franchise were presented at the American Academy of Neurology Annual Meeting, where the strength and quality of our neurology pipeline was demonstrated with 49 company-sponsored platform and poster presentations. We shared comprehensive data for CONFIRM, the second registrational study of BG-12, at 3 platform presentations. Results from CONFIRM showed that BG-12 demonstrated strong efficacy across a variety of measures, including annualized relapse rate, and also met MRI endpoints in a cohort of patients, demonstrating a significant effect on these measures of disease activity. In a platform presentation focused on the safety profile of BG-12 and CONFIRM, both dose regimens of BG-12 showed favorable safety and tolerability profiles, which were consistent with those seen in DEFINE. The incidence of serious infection was slow and balanced across the study groups and there were no opportunistic infections. There were no malignancies seen in the BG-12 arms at CONFIRM, while there was one malignancy seen in the placebo and 4 malignancies seen in the Glaterimer Acetate arms of the trial. The most common side effects for BG-12 were flushing and GI events, which decreased substantially after the first month and resulted in a low incidence of discontinuations. Lastly, the poster presentation of a Phase I study of BG-12 in combination with aspirin in healthy volunteers demonstrated that the PK profile of BG-12 was not affected by aspirin and that pretreatment decreased the incidence and severity of BG-12-related flushing without any adverse impact on GI symptoms. Turning to TYSABRI. 14 posters and presentations were presented at this year's AAN meeting, highlighting the high standard of efficacy that TYSABRI has set in the MS market. The initial data from the TYSABRI observational program, or TOP, indicated that patients experienced significantly reduced annualized relapse rates after 4 years of treatment with TYSABRI and the level of disability progression, as measured by EDSS, remains stable over time. Additionally, interim results from the ongoing STRATIFY 2 trial supported what has been seen in other clinical research, where the overall anti-JCV antibody prevalence among MS patients was approximately 50% to 60%. Recall that the primary objective of STRATIFY 2 is to demonstrate, prospectively, that the PML risk in TYSABRI-treated patients who are anti-JCV antibody negative is lower than the PML risk in patients who are anti-JCV antibody positive. An interim analysis conducted with data collected as of February 2012 showed that there was a significantly lower incidence of PML in anti-JCV antibody negative versus positive patients. STRATIFY 2 also showed that anti-JCV antibody prevalence was lower in females than males and increased with age. Treatment with TYSABRI did not appear to affect patients' anti-JCV antibody status. Initial findings from the TYNERGY study, a 12-month trial looking at MS-related fatigue in patients with relapsing-remitting MS, showed that TYSABRI treatment was associated with improved MS-related fatigue. This result was very important, as 50% to 60% of MS patients report fatigue as one of their most disabling symptoms, which can contribute to both cognitive and physical difficulties. We also presented further details of the daclizumab SELECT trial in the scientific program highlights plenary session, as well as the baseline features of the EMPOWER study, our first Phase III clinical trial of dexpramipexole for patients with ALS. Since the design of EMPOWER and the entry criteria are the same as the Phase II trial, we're hopeful that we can replicate the results we saw in that study. Turning now to other important aspects of our MS pipeline. We presented data from 2 Phase I studies of Anti-Lingo monoclonal antibody or BIIB33 that has been shown an animal models to promote remyelination and axon survival. The first Phase I study was a single ascending dose study in healthy volunteers, while the second study was a multiple ascending dose study in patients with relapsing-remitting MS or secondary progressive MS. Primary endpoints for both studies were the incidence of adverse events and serious adverse events, as well as other safety evaluations. Secondary end points for both studies included several measures of serum and CSF levels of BIIB33. Data presented indicated that single and multiple doses of BIIB33 appear to be safe and well tolerated in both healthy subjects and subjects with MS, and that CSF levels achieved were in the predicted range needed for efficacy, based on animal models of demyelination. Importantly, the result supported advancing the development of the agent into Phase II proof of concept studies, which we expect to initiate in the second half of 2012. Moving on to other early-stage compounds in our portfolio, I'm pleased with the progress that we've made expanding our early-stage pipeline this quarter. Through the recent acquisition of Stromedix, we added STX-100, a noble humanized monoclonal antibody that disrupts the TGF-beta signaling pathway, specifically in tissues where fibrotic changes are occurring. We're excited about STX-100 because it exhibited significant activity in preclinical animal models of fibrotic disease and demonstrated an attractive safety and tolerability profile in the Phase I program. Stromedix has also identified a series of pathway-specific biomarkers in the lung to inform dose selection of STX-100 for proof of concept studies. Molecule has potential in several additional fibrotic indications, given the selective mechanism of action and the central role of TGF-beta in fibrosis. We expect to initiate the Phase II study in IPF by midyear. This quarter, we also began dosing patients in the Phase I program for ISIS-SMN for the treatment of Spinal Muscular Atrophy and expect to see results late in 2013. As we move forward into 2012, I look forward to providing you key top line data readouts from 3 pivotal trials in the second half of this year, namely the A-Long study of our long-lasting recombinant Factor VIII in Hemophilia A patients, the B-LONG study of our long-lasting recombinant Factor IX in Hemophelia B patients in the second half of 2012. And finally, the data readout from EMPOWER, the first study of dexpramipexole and ALS is expected in the fourth quarter of this year. With that, I'll now pass the call to Tony Kingsley, our EVP of Global Commercial Operations.