Julie Rubinstein
Analyst · Derik De Bruin of Bank of America. Your line is open
Thanks, Chad. Starting first with life sciences research. We are continuing to make important progress across our research business as our partners expand their usage of our immuno sequencing products and services. In particular, the biopharma community is increasingly using immunoSEQ for immune repertoire profiling, and clonoSEQ for MRD monitoring in clinical trials. Since the beginning of 2019, our assays have been selected by an additional 40 biopharma companies for a total of 165 partners to date. As Chad mentioned, by the end of this year, we are launching an upgraded RUO kit for immunoSEQ that will work quantitatively with any sample type, including stored tissue samples. As the use of immuno sequencing expands across disease states, we are growing our sales and marketing team and seeking partners for global distribution. As the industry continues to assess the inclusion of MRD as a potential surrogate or primary endpoint in clinical trials for blood cancers, it is increasingly important to have a standardized and highly accurate option for MRD testing in registrational trials.Of note, in Q3 we announced a global agreement with Amgen for the use of our clonoSEQ assay to assess MRD across multiple drug development programs in their portfolio. This partnership exemplifies the growing role MRD testing plays in demonstrating drug efficacy in clinical trials. Under the terms of this type of agreement, we will receive annual development fees in addition to potential sequencing payments and regulatory milestones.Turning next to clinical diagnostics. Starting with clonoSEQ, clinical test volumes during the third quarter increased 36% to 2,551 tests compared to the third quarter of 2018. clonoSEQ is currently used by more than 400 HEMOCs in over 130 institutions. Clinical test volumes are growing in line with our expectations just 9 months following CMS coverage. Progress to date has been achieved by a small 14-person field force. As Chad mentioned, we have triggered an expansion in commercial resources in response to accelerated coverage to achieve broader market adoption over the next 18 months. We aim to more than double our field team by January 2020 to support the growing demand for clonoSEQ across the U.S., and the need to expedite the account activation and workflow integration processes. We are also ramping up our marketing efforts so that more patients are aware of the importance of knowing their MRD status.We are educating the clinical community about the importance of obtaining a baseline sample for every patient. This will enable us to perform regular longitudinal MRD monitoring over the lifetime of each patient. Today, clinicians are already using the test to confirm response to therapy, determine disease burden before and-or after transplant, confirm complete remission by traditional methods and guide maintenance therapy. To expand the use cases for clonoSEQ, we are continually generating data through biopharma partner trials, investigator sponsored protocols and a patient registry to curate real world evidence.With regards to lifecycle management, we are on track for our first label expansion with submission to the FDA by the end of 2019 for clonoSEQ to be used to monitor patients with CLL from blood samples. Work is also underway to expand our current label from bone marrow to blood in multiple myeloma and ALL, and to extend utility to patients with NHL, also from blood samples. Moving into blood will be highly preferred by patients and significantly less costly to the healthcare system. We are exploring product line extensions that may allow for greater access and utilization of our diagnostic products. To that end, we announced a partnership with Illumina to enable the development of in-vitro diagnostic test kits for local labs. We are committed to ensuring that patients have access to the best tools available to monitor their disease, and while it is still early days, we are confident that clonoSEQ will become the standardized MRD monitoring tool that clinicians will use to manage their patients.Turning now to our clinical diagnostic pipeline product, immunoSEQ DX. This product is intended to diagnose disease based on the T-cell response to disease specific antigens, which we are calling a TCR signature. Each disease will have a different TCR signature, which we will identify and continuously improve by leveraging our immune medicine platform and Microsoft's machine learning expertise. To launch this product in 2021, we set out to confirm at least one clinical signal by the end of 2019 to take into clinical validation in 2020. This signal confirmation has been achieved in the acute line disease setting from two independent retrospective 200 plus patient cohorts. In both of these studies, we compared to standard of care, which is two-tiered serological testing. Our data shows a reduction in both false positive and false negative rates compared to standard of care. In each patient cohort, we identified T-cell receptors that are over represented in patients with acute Lyme disease, whose cases have been clinically confirmed. We intend to continually improve the diagnostic sensitivity of our test by identifying more line specific receptors over the next year as we collect additional patient cohorts and run our registrational clinical validation study. There are approximately 300,000 newly diagnosed patients with Lyme disease each year in the United States and over 3.5 million tests run. We believe that detecting Lyme disease based on the expansion of line specific TCRs in the blood can significantly increase the accuracy of detection of this disease. This signal in line de-risks the science behind immunoSEQ DX.We also continue to progress in other disease states that we have discussed such as celiac disease. In October, we opened a research study for 1,000 volunteers who believe they may have celiac disease, and we plan to sponsor several other such studies in additional disease states in the near future. We are now expanding our commercial team for immunoSEQ DX, and working with the FDA to define our validation protocols necessary to bring this product to market.Turning now to drug discovery. Our partnership with Genentech to use our TCR discovery and screening process to develop cellular therapies in oncology is progressing well. As previously discussed, we are focusing on the development of shared cellular therapy products using our version of off the shelf TCRs against prioritized shared antigens. In Q3, we contributed significant resources to the generation of data packages on TCRs against many antigen targets. From these data packages, Genentech is prioritizing TCRs for cell therapy product development with the goal of the first IND filing in 2020. We are also continuing to make progress with Genentech on the development of a personalized cellular therapy product, where we plan to identify in real time the TCRs that are specific to each patient's tumor.In sum, we are beginning to gain traction on all fronts as we execute against our commercial products and advance our clinical pipeline. We are confident in our ability to leverage our immune medicine platform to bring high margin, patient specific immune-driven products to market.With that, I will now turn the call over to Chad C. for more details on our financials. Chad?