Enrique Conterno
Analyst · Jefferies
Thank you, Mike, and good afternoon, everyone, and welcome to our second quarter 2021 earnings call. Today, I would like to provide a high-level summary of important accomplishments and developments in recent months. Pat Cotroneo, our CFO, will then review the financials. After which, we will open up the call for your questions. There is no question we are facing a significant challenge given the recent FDA Advisory Committee vote. However, FibroGen continues to be positioned to create significant value for patients and shareholders by executing on the 3 areas of focus as shown on Slide 3. Number one, ensuring regulatory and commercial success of roxadustat, a transformational medicine for the treatment of anemia, first in patients with chronic kidney disease and also with significant potential for expansion to treatment of additional indications; number two, developing pamrevlumab in 3 indications with significant unmet medical need, locally advanced unresectable pancreatic cancer, Duchenne muscular dystrophy and idiopathic pulmonary fibrosis; and number three, strengthening research productivity by leveraging our leadership position, both in hypoxia inducible factor and connective tissue growth factor biology and by accessing external innovation. Today's call will include an update of the regulatory status of roxadustat, our continued strong performance in China, our clinical trial programs and recent corporate developments. Let us get started with roxadustat on Slide 4. In June, the CHMP of the European Medicines Agency adopted a positive opinion relating to the use of roxadustat for the treatment of anemia associated with CKD. We expect a decision from the European Commission by the end of August. In July, the FDA Cardiovascular and Renal Drugs Advisory Committee voted to recommend not approving roxadustat for the treatment of anemia of CKD. We and our partner, AstraZeneca, are in dialogue with the FDA and expect an action in the near future. During the quarter, roxadustat was approved in South Korea to treat adult patients with anemia CKD and we have regulatory submissions in other territories under review. To support commercialization efforts worldwide, we have submitted manuscripts covering all primary Phase 3 studies to peer-reviewed journals. As noted in Slide 5, 7 of these manuscripts have been published encompassing both nondialysis-dependent and dialysis-dependent data, and we expect additional publications of the Phase 3 data in the coming months. Moving now to China. As you can see on Slide 6, we are pleased to report total roxadustat net sales to distributors in China of $52.8 million for the second quarter and $96.3 million for the first half of 2021. The increase in uptake continues to be driven by both an expansion in hospital listings and broad adoption with enlisted hospitals. FibroGen reported $13.4 million in China roxadustat net product revenue for the second quarter 2021 and $28.7 million for the first half of 2021. Hospital listings continue to be a key focus of our launch efforts. And at the end of the second quarter, roxadustat was listed at hospitals that collectively represent approximately 81% of the CKD anemia market opportunity in China. As you can see on Slide 7, the ESA market growth has accelerated since the inclusion of roxadustat on the NRDL. In fact, ESA revenue over the last 6 months has shown meaningful growth over the same period in the prior year. Moving to Slide 8. Roxadustat has driven the expansion of the anemia CKD category over the past 1.5 years. In fact, roxadustat captured 70% of the category growth and is capturing share in an expanded market. Finally, as shown on Slide 9, roxadustat is the #1 branded treatment for anemia CKD in China for the past 5 months, achieving a value share of 32% in the most recent months within the segment that includes all ESA products, and roxadustat currently the only HIF-PHI in the market. We look forward to keeping you updated as we advance our long-term goal of making roxadustat the standard of care in treating China's CKD anemia patients. Moving now to our clinical development programs on Slide 10. COVID continues to create challenges to recruitment. And today, we are updating our timelines, starting with roxadustat. We recently completed WHITNEY, our Phase 2 trial in patients with chemotherapy-induced anemia and look forward to sharing top line data with you later this quarter. Top line data of MATTERHORN, our Phase 2 trial in patients with anemia myelodysplastic syndromes, or MDS, is now expected in the second half of 2022 or first half of 2023 versus prior guidance of the first half of 2022. In China, the blinded portion of the Phase 3 trial of roxadustat in patients with anemia of MDS has begun enrollment. Moving now to pamrevlumab. In locally advanced unresectable pancreatic cancer, an interim analysis of event-free survival for potential accelerated approval of our LAPIS Phase 3 trial will be completed in the second half of 2022. Previously, the reflection rate was a surrogate end point for accelerated approval. After recent discussions with the FDA, we changed this end point to the event-free survival end point, which is composed of progression, death and resection failure due to progression. This better reflects the potential clinical benefit in this patient population. During the second quarter, pamrevlumab was included in the Pancreatic Cancer Action Network's Precision Promise adaptive trial platform, which is evaluating pamrevlumab and standard of care for patients with metastatic pancreatic cancer. Moving to Duchenne muscular dystrophy, enrollment continues in our LELANTOS-1 Phase 2 trial in nonambulatory patients with top line data now expected in the first half of 2023 versus prior guidance of second half 2022. Finally, in idiopathic pulmonary fibrosis. Today, we're pleased to provide guidance that we expect top line data from our ZEPHYRUS-1 Phase 3 trial in mid-2023. These timelines assume current covered conditions, and we will provide further updates as they become available. Moving now to the corporate update. We appointed Dr. John Hunter to the position of Chief Scientific Officer. Moving now to Slide 11. In June, we announced our partnership with HiFiBiO to advance next-generation therapies for patients with cancer and autoimmune disease, which could enable up to 3 INDs by 2023. FibroGen is accessing 3 new monoclonal antibodies against exciting targets, Galectin-9, CXCR5 and CCR8. Galectin-9 is an oncology target with a reported role in acute myeloid leukemia and immune resistance in many solid tumors. Next, CXCR5 is an autoimmune and oncology target and our primary interest autoimmunity, but there are also opportunities in beta-cell lymphomas. Finally, CCR8 is an oncology target with broad potential in solid tumors. Now I would like to provide an update on our internal review. On April 6, 2021, the company clarified the certain previously disclosed cardiovascular safety analysis from the roxadustat Phase 3 program for the treatment of anemia and chronic in disease included post-hoc changes to the certification factors and provided additional data from the cardiovascular safety analysis with the prespecified certification factors. As stated at that time, the company initiated an internal review to ensure this does not occur in the future. We now have completed that review. Key company findings from the review are as follows. The underlying data used for the cardiovascular safety analysis are accurate with no data integrity issues with the data used to generate such analysis. In its NDA, the company calculated accurately and described both set of analysis, including the statistical methodologies and the certification factors utilized. The statistical analysis using post-hoc stratification factors were designated as primary analysis and the statistic analysis using prespecified ratification factors, a sensitivity analysis. Those responsible for the statistic analysis believed it was a reasonable and valid way to analyze and present the data. Management is taking steps to ensure the company's processes are consistent with best practices in all respects. In addition to other processes and procedures, we plan to implement independent quality unity oversight of clinical data management, programming, analysis and reporting. Furthermore, those directly responsible for the decision to use post-hoc certification factors in the primary analysis no longer work for the company. The use of post-hoc certification factors was not discussed by the FDA Advisory Committee or reference as a consideration that led to the Advisory Committee vote against recommending approval for roxadustat. We do not believe that it played any role in that vote. I will now turn the call over to our CFO, Pat Cotroneo, for the financial update. Pat?