George Yancopoulos
Analyst · Geoffrey Porges with SVB Leerink
Thank you, Len. And with all of us still in the throes of the COVID-19 epidemic, I will start with an update on our antiviral antibody cocktail that has the potential to both possibly protect against infection and also treat those already infected. Based on our Ebola program, our new non-human primary data for our COVID-19 cocktail as well as our understanding of immune response, we believe that our COVID-19 treatment is well positioned to help patients prior to and early in infection. We initiated our clinical program in June, barely 5 months after we started this treatment, developing this treatment. Our rapid timeline was possible due to our VelociSuite technologies, which were developed in-house over decades to allow for specific turnkey disease interventions and were recently applied to develop a similar approach against Ebola, which we hope will prove to be the first treatment approved for this disease with a PDUFA date in October. We are conducting 4 trials of Regeneron COV2, our antibody cocktail: one in hospitalized COVID-19 patients; a second, ambulatory study in outpatients who are diagnosed with COVID-19; a third, preventative study in household contacts with COVID-19 patients being carried out in collaboration with the National Institute of Allergy and Infectious Disease; and a fourth, multi-dose, healthy volunteer study. Our studies are adaptive in nature as we learn more about the virus and our antibody cocktail and other studies are being planned as well. All of these studies have passed several safety assessments with no safety concerns observed to-date. Despite the challenging environment, in which these studies are being conducted, we are targeting to report initial virology and biomarker data from the treatment studies by the end of September with clinical outcome data to follow as enrollment progresses. In June, we have published two important papers in science on our antibody cocktail, in which we described the details of how the two antibodies in our cocktail block the coronavirus spike protein, and importantly, highlighted the significance of using the antibody cocktail versus single antibody approach. We showed that the cocktail approach avoided viral escape due to viral mutation, which rapidly occur when using single antibody approaches. In addition, we have recently generated important data in non-human primates, which has been both posted on bio-archives. These studies showed that in this setting, our antibody cocktail can not only effectively prevent infection primates matching or exceeding recently published prevention data achieved with vaccine approaches, but also that our cocktail can treat those already infected by accelerating viral elimination. I next want to highlight the outside support we have received for our strategy in addition to conducting our Phase 3 prevention study in collaboration with the NIAID, which substantively expands our reach to investigate our cocktail in the preventative setting. We recently signed a manufacturing contract with BARDA as part of Operation Warp Speed to make initial lives of our cocktail at risk so that the drug could be available as soon as possible, if proven efficacious and approved by the FDA. While we are all hoping that vaccines prove successful and we ourselves are partnering on some novel second generation vaccine approaches, we believe that our neutralizing antibody cocktail could play an important role as a rapid first line in defense, in those for whom the vaccine is not available and in the long-term could also provide protection for those least likely to respond well to a vaccine, such as the elderly and immunocompromised. Moreover, unlike the vaccine and as supported by our initial primate studies, our cocktail may not only prevent infection, but could also have the potential to treat those already infected. Moving on to our efforts outside of COVID-19 and starting with DUPIXENT, the demonstrated safety and efficacy of DUPIXENT are further bolstered by the recent FDA approval in children with moderate-to-severe atopic dermatitis, children as young as 6 years old. We are not stopping there as we are conducting a study in even younger atopic dermatitis patients. And for children with asthma, we plan to submit a BLA supplement for approval in pediatric asthma by the end of the year, pending upcoming Phase 3 data. We are also enhancing convenience for all patients with the recent FDA approval of our 300 milligram auto-injector. Outside of the United States, DUPIXENT was approved in China recently, which represents a major milestone as we work to ensure patients everywhere have access to this life changing medicine. Our DUPIXENT clinical program continues to deliver positive results in additional Type 2 inflammatory indications. In May, we announced that we met the primary and key secondary endpoints in Part A as our pivotal trial in the eosinophilic esophagitis. Patients treated with DUPIXENT demonstrated significant clinical and anatomic improvements, with almost a 70% reduction in disease symptoms compared to an approximately 30% reduction for patients on placebo as demonstrated by the Dysphasia Symptom Questionnaire. We are currently enrolling Part B of this trial and communicating with regulators about filing requirements for this indication. In addition, the first pivotal DUPIXENT trial in patients with chronic obstructive pulmonary disease typified by Type 2 inflammation or Type 2 COPD completed a pre-specified analysis by the Independent Data Monitoring Committee requiring a certain threshold reduction in exacerbations, which was met and thus triggered opening a second pivotal trial for this potential indication. Approval in Type 2 COPD would unlock another important opportunity for depiction to help patients with Type 2 inflammatory disease, who currently have limited options. Moving on to our oncology portfolio and starting with our PD-1 antibody, Libtayo. At the virtual ASCO meeting, we presented a clinically meaningful cutaneous squamous cell carcinoma data follow-up, followed by a label update as well. As reported at ASCO, was up to 3 years of follow-up, while the overall response rates remain stable approaching 50%, the complete response rates have climbed to 20% in metastatic CSCC increasing from the 7% rate reported in the initial preliminary analysis, providing one of the most dramatic examples of ongoing and prolonged benefit from an immunotherapy treatment. Moreover, this data firmly established Libtayo as first-in-class for this dermato-oncology cancer setting with compelling long-term clinical data. In addition last quarter, we announced positive first-in-class data for a second dermato-oncology indication that is basal cell carcinoma, which we will be submitting for regulatory review. Finally, we are excited about the opportunity for Libtayo in non-small cell lung cancer based on our recent positive Phase 3 trial with Libtayo as monotherapy in PD-L1 high patients, which we will also be submitting for regulatory view. And we have completed screening patients for enrollment in our follow-on chemo combination study in lung cancer. Libtayo is foundational to our oncology strategy and we are making significant progress with Libtayo in skin cancers, lung cancers and our numerous combination and collaborative studies. Our CD-3 bispecific clinical program is moving forward despite operational challenges imposed by the COVID-19 pandemic. Regeneron 1979, our CD20xCD3 bispecifics has shown robust efficacy in both follicular lymphoma and more aggressive disease, including diffuse large B-cell lymphoma. Our potentially pivotal Phase 2 study continues to enroll globally and we are having productive discussions with regulators to expand the registrational program with combinations and in earlier lines of treatment. We are preparing to explore novel combinations, including a combination from novel class of costimulatory bispecifics, that is one targeting B-cell specifically. We recently published a second major paper featured on the cover of Science Translational Medicine in June describing how these co-stimulatory bispecifics can synergize, not only with CD3 bispecifics, but also with PD-1 blockers. By the way, we are actively working on subcutaneous delivery of this potentially important drug candidate. Our BCMA by CD3 bispecific is moving forward and we are planning to initiate potentially pivotal studies in various multiple myeloma settings. Moreover, we intend to explore standard novel combinations, including with a co-stimulatory bispecific targeting plasma cells. We expect to provide updates for both our CD20 and BCMA programs at ASH later this year. I would like to expand a bit on our co-stimulatory bispecific effort as it represents an important example of the ongoing innovation in oncology for Regeneron. As I said, we are planning on combining such costims with both our CD20 and BCMA bi-spec programs for lymphoma and myeloma. But our first co-stimulatory bispecific is already in clinical development. This first-in-humans co-stim PSMAxCD28 is in combination with Libtayo for prostate cancer and is continuing to enroll in the dose escalation stage of clinical investigation. We are also excited about two additional co-stim bispecifics scheduled to enter the clinic this year. These new co-stim trials include EGFRxCD28 in combination with Libtayo, which will be explored in several solid tumors, including lung cancer and head and neck cancer as well as MUC16xCD28, which will be tested for patients with ovarian cancer as well as in other settings. Our MUC16 co-stim will be studied in combination with either Libtayo or MUC16xCD3 bispecific, which is already in clinic. The span of our toolkit enables us to explore these and many new combinations that based on preclinical evidence could provide meaningful advances for a wide variety of cancer patients. Moving on from oncology, I would like to provide an update on our fasinumab program. We have previously announced positive top line efficacy data in a fasinumab Phase 3 FACT long-term safety study, or FACT LTS substudy. And today we are announcing that two additional Phase 3 studies in patients with osteoarthritis pain, FACT OA1 and FACT OA2 met the co-primary efficacy endpoints for the fasinumab 1 milligram monthly dose versus placebo. The fasinumab 1 milligram monthly dose also showed nominally significant benefits in physical functions in both trials and pain in one of the two trials when compared to the maximum FDA approved doses of NSAIDs for osteoarthritis. The less frequent dose of fasinumab 1 milligram every 2 months used in an arm of the FACT OA1 trial showed numerical benefit over placebo, but did not achieve statistical significance. In the initial safety analysis from the Phase 3 trials, there is an increase in arthropathies reported with fasinumab. In the FACT LTS substudy, there was increase in joint replacements with fasinumab 1 milligram monthly treatment, during the off-drug follow-up period. Although this increase was not seen in the other trials to-date, additional longer term safety data from the ongoing trials is being collected and is expected to be reported early next year. Finally, I would like to briefly address other exciting developments in our pipeline. We are planning to publish evinacumab results in homozygous familial hypercholesterolemia shortly and we have submitted our applications to the FDA and to EMA. Regarding our garetosmab program for fibrodysplasia ossificans progressiva, or FOP, we are planning to submit data to regulatory authorities in the first quarter of next year pending results from the crossover arm of our trial, where placebo patients are now receiving active drug. Our hope is to replicate the dramatic 90% reduction in new lesion formation that we saw in the first part of the trial. At the European Hematology Association Meeting in June, we presented promising pozelimab monotherapy interim results in paroxysmal, nocturnal, hematoglobinuria patients. We are hoping to start to start testing a combination with Alnylam's RNAi treatment, cemdisiran, by year end. And last but certainly not least, we are starting to enrol our Phase 3 study of the high dose EYLEA in DME and wet AMD. High-dose EYLEA has the potential to reduce dosing frequency, while maintaining the efficacy and safety of our medicine that is trusted by doctors and patients worldwide. To conclude, our broad and diverse pipelines is growing and progressing even in this COVID 19 environment, I could not be prouder that even in these extraordinary and challenging times, our people are continuing to push on every front in our efforts to bring important new treatments to the patients who need them. I now turn over the call to Marion.