Dr. Greg Glenn
Analyst · JP Morgan. Your line is now open
Thank John, and good morning everyone. I’ll begin my comments with an update on our RSV F Vaccine program for older adults. As a reminder, RSV infects over 2.5 million older adults every year in the United States alone with an estimated annual cost burden in excess of $28 billion. According to the CDC, the disease causes 207,000 hospitalizations and 16,000 deaths among adults older than 65, every year. There are also roughly 900,000 medical interventions that are directly caused by RSV disease annually. Resolve is a randomized, observer-blinded, placebo-controlled trial that enrolled 11,850 adults, 60 years of age and older at 60 sites in the U.S. The primary efficacy objective of this trial is the prevention of moderate to severe RSV associated lower respiratory tract disease, as defined by the presence of multiple lower respiratory tract symptoms and signs. The secondary efficacy objective is the prevention of all acute symptomatic RSV respiratory disease. The trial was designed based on prior Phase 2 results, in which we were able to describe the RSV attack rate, vaccine effect, and case definitions. With respect to this year’s attack rate, we will continue to closely monitor several different RSV surveillance systems for the 2015-2016 seasons. Unlike influenza, the intensity of the annual national RSV season can see relatively consistent year-in and year-out. And today, this RSV season has remained consistent with previous years. Based on data provide RSVAlert and CDC’s National Respiratory and Enteric Virus Surveillance System, the percent of RSV positive tests is generally consistent with the 2014-2015 season and the prior five years. This gives us additional confidence that we will have [ph] enough events to evaluate the efficacy of our vaccine in this population over this season. But let me remind you, we remain blinded; on day first, we finished our surveillance of the enrolled participants and PCR testing is now in a way. We expect to provide top line efficacy results of the single [ph] trial in third quarter this year, line in line with the prior guidance. These pivotal efficacy results will support filing of our U.S. BLA in 2017 as well as other global licensor applications. In addition to Resolve, we have ongoing Phase 2 rollover clinical trial of our RSV F Vaccine in older adults. Data from this trial will support discussions with regulatory agencies, advisory committees like ACIP and the payor community as we see the recommendation for the annual seasonal vaccine in older adults. The trial itself is a randomized observer-blinded placebo-controlled rollover trial which targeted the enrollment of the same adults 60 years of age who participated in the prior Phase 2 trial. We have successfully completed enrollment of this trial with 1,330 older adults, which exceeded our expectations before enrollment. The primary end-point of the trial to evaluate safety in serum anti-F IgG antibody concentrations in response to revaccination in second RSV season. Results of this trial are expected in the second half of 2016. Now moving on to our RSV program for infants via maternal immunization, we initiated enrollment in a global, multi-year pivotal Phase 3 clinical trial known as Prepare during the fourth quarter. RSV is the most common cause of lower respiratory tract infections and is the leading cause of severe lower respiratory tract disease in the infants and young children worldwide. In the U.S., RSV is the leading cause of hospitalization of infants and globally, and second only to malaria as a cause of death in children under one-year of age. Despite the induction of post infection immunity, repeat infection and lifelong susceptibility to RSV is common. Validating the need for a vaccine, Novavax has been awarded a grant up to $89 million from the Bill & Melinda Gates Foundation to support development of this RSV F Vaccine for infants via maternal immunization. The Prepare trial itself is a randomized, observer-blinded, placebo-controlled trial that utilizes a group sequential design, offering flexibility in trial size that is responsive to the rate of endpoint events and the evolving evidence of efficacy while maintaining the integrity of blinded trial. Thus, the eventual sample size may vary between 5,000 and 8,255 pregnant women over a period of two to four years. As Stan mentioned earlier, participants are being recruited and vaccinated at a number of global clinical sites based on the consideration of each region’s RSV season, thus allowing the year around enrollment. We are working to expand a number of sites in countries that participated during the first global season and to add sites in additional countries as we enter into the second global season. We will build on the experiences occurred in the first global season to continue towards successful execution in our second and third global seasons. The primary objective of the Prepare trial is to determine the efficacy of maternal immunization with the RSV F Vaccine against symptomatic lower respiratory tract infection with hypoxemia in infants through the first 90 days of life. We believe that maternal immunization offers the optimal way of protecting young infants from RSV who are in more susceptible populations of this disease and in general the great momentum towards global acceptance of the use of maternal immunization has created an excellent environment for trial execution. Moving to pediatrics, while we remain focused on our ongoing RSV vaccine Phase 3 trials, we recognize the value of pediatric RSV vaccine and our discussions with regulatory agencies regarding our clinical development plans. We expect to provide guidance on our clinical development plans in the second half of this year. We recently met with two European national regulatory agencies, The Paul-Ehrlich-Institut in Germany and the Medicines & Healthcare Products Regulatory Agency in the UK. And in that meeting, both the infant and maternal immunization, and older adult programs were discussed. Consistent with the FDA, both agents were supportive of each program including clinical trial designs, trial endpoints and the proposed clinical datasets to support future marketing authorization applications, the European equivalent of a U.S. BLA. Importantly, both agents also agreed that our clinical development plan could support an annual vaccination study [ph] within our label. Moving to our influenza program, in recent meetings with BARDA, we have been discussing the next steps in both our seasonal and pandemic influenza VLP vaccine programs and our preliminary efforts of developing influenza nanoparticle vaccines. We expect that these discussions will continue through the year. We also are continuing to work on plans for conducting a clinical trial for the combination of respiratory vaccine that will combine a version of our seasonal flu vaccine with our RSV vaccine. Under ideal circumstances, we would plan to conduct a single clinical trial including arms of a combination product and our seasonal influenza nanoparticle vaccine in the first half of 2017. This trial would be the first of our seasonal influenza nanoparticle vaccine, which is a new approach that builds on advancements achieved with the RSV nanoparticle. We will provide additional details on this approach at the upcoming Keystone Symposia to be held on -- between May 22nd and 26th in Cape Town, South Africa. We’ve also begun to work on the zika vaccine, leveraging our unique experience in the rapid development of vaccine against emerging disease threats. As we discussed last quarter, we initiated efforts to develop the zika vaccine with a goal of rapidly progressing through animal studies and the early process development activities. At this point, the vaccine is being developed as an envelope protein nanoparticle, and we expect to benefit from the use of our Matrix-M adjuvant. This approach has been successfully used with 879 [ph] in Ebola and we have confidence that can be successfully used in other emerging diseases, including zika. We will continue to work with various government and non-government groups to determine the pathway forward to fund larger scale productions in clinical trials. With that update of our key programs, I’ll now turn the call over to Buck.