John Scarlett
Analyst · Needham & Company. Your line is open
Thanks, Olivia. That’s great segue to our 2019 objective. Our first objective in 2019 is the transition of the Imetelstat program back to Geron. We’re on track for the IND transfer to take place by the end of the second quarter and for the transfer of the majority of the program by the end of the third quarter of 2019. We expect transfer of the manufacturing activities to be completed by the end of the third quarter of 2020. We’re diligently managing the transfer of the IND in order to enable the start of enrolment of the Phase 3 trial and lower-risk MDS by mid year. In order for us to complete the transfer we need to obtain clinical, regulatory, biometric and safety information from Janssen to create our own data basis in monitoring systems. In addition, Janssen needs to transfer all regulatory filings as well as preclinical CMC and vendor information. We’re also preparing clinical supplies and readying our internal processes and systems to ensure compliance study conduct for both of the ongoing Imetelstat Phase 2 clinical trials. Once the IND transfer has been completed, our next 2019 objective is to commence screening and enrolment for the Phase 3 clinical trial for Imetelstat and lower-risk MDS by mid-year. Data from the Phase 2 portion IMerge that were reported at ASH in December support our decision to move forward to the Phase 3. The ASH presentation December reported results from 38 patients enrolled in the Phase 2 portion of IMerge. All 38 eight patients were transfusion dependent with low or Intermediate-1 risk, non-del(5q) MDS who had relapsed or refractory to prior treatment within erythropoiesis stimulating agent and who were naïve to treatment with a hypomethylating agents or lenalidomide. The baseline – sorry, the median baseline transfusion burden was eight units of packed red cells given within an eight period of time represent -- representing a high transfusion burdened patient population. Across the population of 38 patients the transfusion burden at baseline ranged from 4 to 14 units per eight weeks. The primary efficacy endpoint of the trial was the proportion of patients who achieved transfusion independence for at least eight consecutive weeks, also known as an eight-week TI rate. Key secondary endpoints include durability of respond as assessed by 24-week TI rate, as well as the breadth of response through reduction and transfusion burden and responses across MDS sub-types. I’d like to highlight some of the main outcomes reported at ASH in December which encourage us to continue further development of Imetelstat and lower-risk MDS. First, the eight-week TI rate was 37%. We believe this is a strong response. Patients in a similarly designed study of the lenalidomide and non-del(5q) lower-risk MDS patients achieved an eight-week TI rate of only 27%. Second, the 24-week TI rate was 26%. To put this perspective, this means that about 70% of the patients who achieved an eight-week TI went on to achieve a 24-week TI. This is an excellent results indicating significant durability of the transfusion independence and Imetelstat treated patients. Third, the Hematologic improvement-erythroid rate known as HI-E was 71%, which means that 71% of the patients had a reduction of at least four units of packed red cells over eight weeks compared to baseline. Again, this is an excellent result. Drug other than Imetelstat in a protocol similar to IMerge have struggled show an HI-E rate of greater than 50%. Lastly, patient had a mean relative reduction of transfusion burden from a baseline line of 68%. Meaning, that across all patients regardless of whether they achieved an eight-week TI. Imetelstat treatment resulted in a mean reduction of 68% in the number of units transfused. In our market research physicians who treat MDS patients value such meaningful reductions in transfusion burden because of the reduction in cost and improvements in quality of life associated with reducing transfusions to this degree. To put these results in further context, I’d like to say few words about the data presented at ASH in December from the Medalist trial of Luspatercept, which was a Phase 3 clinical trial and compare those data that I just described for Imetelstat treated patients in the Phase 2 portion of IMerge. The lowest MDS patients studied in Medalist had many similarities to these patients studied in IMerge. They failed ESAs and had become transfusion dependent. They were non-del(5q) and they were naive to both lenalidomide and HMAs. However, there was an important distinction. The baseline meeting number of pretreatment transfusions for the medalist patients with five packed cells over eight weeks compared to eight units over eight weeks for the IMerge patients. Notably, 29% of the medalist patients had a baseline transfusion burden of less then four units per eight weeks, those patients would not have been eligible for our IMerge trial where we require transfusion burden of greater than or equal to four units of eight weeks. When we look at the efficacy results for the two drugs in the two studies, the overall eight-week TI rates were quite similar, 37% for Imetelstat treated patients and 38% from Luspatercept. However, upon further analysis of the data from the ASH presentation and the Luspatercept patients with the transfusion burden of greater than or equal to four units per eight-week, that is the population with the baseline transfusion burden consistent with that of the Imetelstat patients in IMerge, the eight-week TI rate declined to 38% to approximately 20%. Based on these data from medalist, we expect that Luspatercept, which has a relatively benign adverse affect profile is likely to be used predominantly in patients with low transfusion burdens. In contrast the Phase 3 portion of IMerge will continue to enroll only patients who have a transfusion burden of at least four units of packed cells for eight weeks. In conclusion, the efficacy results from the Phase 2 portion of IMerge presented at ASH showed clinical benefit including in patients with high transfusion burden and suggest that Imetelstat has a potentially important role to play in transfusion dependent lower-risk MDS. As of the October 26, 2018 data cutoff for the IMerge ASH presentation, the median duration of transfusion independence had not been reached. Since there are still a few handfuls of patients continuing on treatment in the Phase 2 portion of IMerge, we expect more mature data to be available in 2019 and anticipate submitting such data for presentation at a future medical conference. Another objective in 2019 is to outline a decision regarding the potential for late-stage development of Imetelstat in MF by the end of the third quarter. While the data from the Phase 2 IMerge clinical trial including new overall survival data presented at ASH in December suggest a meaningful survival outcomes in relapsed refractory MF patients, the potential clinical path forward is yet to determined. The ASH presentation reported that median OS for the 9.4 mg per kilogram dosing are almost 29.9 months in a poor prognosis relapsed refractory patient population where they’re currently no approved treatments today. Other observational studies have similar patient population at academic medical centers published recently in medical literature have reported median OS ranges of approximate 12 to 14 months after failure of or discontinuation from Litinib. Our decision whether to continue late-stage development in MF will be influenced by our assessment of what would likely be require to achieve clinical success in regulatory approval including the cost and duration of any potential clinical trials. To inform this assessment we will conduct discussions with key opinion leaders over the coming month and we expect discussions with regulatory authorities to begin after the IND is transferred back to Geron. Our key organizational objective in 2019 is to build our development team by recruiting senior personnel with late stage hematology-oncology expertise. There are three core reasons for doing this. The first is to provide for outstanding execution of the Phase 3 clinical trial and lower-risk MDS. This includes full engagement with key opinion leaders and clinical investigators who will form an influential group of supporters as we meet our commercialization. The second is, having the organizational expertise and capacity to allow us to maximize Imetelstat value by evaluating potential additional indications including MF and perhaps other key malignancies in the future. The third is that having in-house scientific and clinical capabilities enables us to evaluate, attract and develop additional hematology-oncology assets that can be added to our franchise in the future. Our plans to open an office in Northern New Jersey should be very helpful in recruiting senior personnel with late-stage hematology-oncology clinical drug development expertise as well as enhancing efficient support for global clinical trials including the many European sites we will have for the Phase 3 IMerge trial. In summary, we look forward to 2019 being a pivotal year for the future of both Imetelstat and Geron. We believe we’re firmly on the path to create value for patients and investors alike. So with that, we’d like to answer the questions. And I’ll turn the call back over to our operator.