Stephen Hoge
Analyst · Needham, your line is open
Thank you, Stéphane. Good morning or good afternoon everyone. This morning I'll review our clinical progress. We've launched two vaccine boosters for the current fall winter season to meet different market demands and have received authorizations or approvals worldwide for these vaccines. We previously shared that mRNA-1273.214, which targets Omicron BA.1 induce significantly higher titers than 1273 against the BA1 and BA4/5 sub-lineages in the clinical trial. mRNA-1273.214 is now authorized in United Kingdom, Switzerland, Canada, Australia, European Union, Japan, and other countries. For mRNA-1273.222, which targets the Omicron BA.4 BA.5 variants, the Phase 2/3 study is ongoing and we expect data later this quarter. mRNA-1273.222 is authorized in the United States and now also in the United Kingdom, Switzerland, Australia, Canada, the European Union, Japan, and other countries. Now moving to Slide 9. I'll review our respiratory vaccines pipeline. I will cover the Phase 3 studies in detail in the next slide. Here I want to highlight the progress in the earlier stage studies with our respiratory vaccines. mRNA-1020, mRNA-1030 for seasonal influenza is in a Phase 1/2 study and is now fully enrolled. mRNA-1345, for RSV, is in the pediatric population, is now fully enrolled in our Phase 1 study. Moving now to our combination respiratory pipeline where we have made meaningful progress mRNA-1073, our combination vaccine for COVID and flu is in Phase 1/2, and is fully enrolled. I'm very pleased to announce that our combination COVID, flu and RSV vaccine or mRNA-1230 has also started enrolling in its Phase 1/2 study. We announced a new development candidate, mRNA-1045. This one targeting combination of RSV and influenza and that has started in its Phase 1/2 study. And lastly, in our combination vaccine pipeline, we also have a pediatric vaccine covering hMPV and PIV3. That study is ongoing in a fully enrolled Phase 1B study. Finally, our endemic human coronavirus vaccine is in pre-clinical development along with our pediatric RSV hMPV combination vaccine. Now the review our Phase 3 flu and RSV programs on Slide 10. For flu, our Phase 3 immunogenicity study in the southern hemisphere is fully enrolled with 6,000 participants with a data readout expected in the first quarter of 2023. As we've previously noted, regulators have indicated support for an accelerated approval pathway for our seasonal flu vaccine candidate pending the results from this study. We've also started enrolling our Phase 3 efficacy study in the northern hemisphere and have now enrolled more than 10,000 participants. Timing of this confirmatory Phase 3 efficacy readout will be driven by flu case accruals in the study and could come as early as this winter. Looking to RSV, our pivotal Phase 3 efficacy study in older adults has now enrolled more than 35,000 participants. As we previously mentioned, our primary endpoints in this study, are safety and vaccine efficacy. Timing of the Phase 3 efficacy readout will be driven by RSV case accruals in that study. As we're now in the midst of a very strong RSV season, we continue to expect that the result will be available this winter season. Moving on to our latent and public health vaccine portfolio, our CMV vaccine is ongoing in a Phase 3 study. Our EBV vaccine to prevent infectious mononucleosis is in a Phase 1 study, while our EBV vaccine to prevent longer term sequela, such as cancer and multiple sclerosis is in preclinical. We have two HIV Phase 1 trials ongoing and our HSV and VZV vaccines are ongoing preclinical studies. Finally, our public health vaccine for Zika is ongoing in a Phase 2 trial, and our Nipah vaccine is ongoing in a Phase 1 study. Now let's take a look at our therapeutics pipeline on Slide 12. First, I want to note that AstraZeneca notified us that after a portfolio review, they are returning the rights to the IL-12 program to us. They are concluding the Phase 1 study and we will then evaluate next steps for the program for ourselves. Second, we're excited that our checkpoint vaccine has started dosing its first patients in a Phase 1 study. And finally, our partner Vertex expects to submit an IND for our mRNA cystic fibrosis program by the end of this year. We recently shared updates on our personalized cancer vaccine PA and GSD1A programs at our latest R&D Day. And I will talk to those in more detail in the upcoming slides. Now recall at R&D Day that we shared data from two rare disease programs. The first is in our propionic acidemia program, which is a multi-dose study, and as of September, we had accrued six patient years of experience on the drug and administered well over 100 doses. It is generally been well-tolerated, which is encouraging. We've also seen an encouraging trend in the reduction of biomarkers and been observing a numerical decrease in the frequency of metabolic decompensation events, which is also really encouraging given the severity of these events for proponic acidemia patients. In the GSD1A program, we shared an early set of data from the first two patients in the first cohort. The study is a single-ascending dose study that runs a fasting challenge in a controlled and safe environment in patients with GSD1A, who are unable to normally fast or go without food for long periods of time without becoming hypoglycemic. Both patients in the first cohort have demonstrated that m mRNA-3745 was well tolerated and showed an extension of fast duration and normalization of key biomarkers including glucose, which we think is very encouraging signal of activity. To close, I wanted to remind everyone that we expect our Phase 2 results from our personalized cancer therapeutic by the end of the year. The randomized study comparing PCV plus KEYTRUDA versus KEYTRUDA alone enrolled approximately 150 resected melanoma patients in a high risk of recurrence. The primary endpoint is to prevent recurrence-free survival. As Stéphane mentioned earlier, our partner Merck exercised the option to jointly develop and commercialize mRNA-4157 and we look forward to sharing that data this quarter. With that, I will hand it over to Arpa.