Rachel King
Analyst · SunTrust. Your line is now open
Thank you, Helen. Our next key step for the GMI-1271 program is to initiate a registration study in the relapsed/refractory AML population. We've begun engaging with the FDA under the Breakthrough Therapy designation GlycoMimetics received in May 2017. Those conversations have been productive and helpful as we design our Phase 3 protocol and other aspects of the program required for registration, including manufacturing and non-clinical aspects of the program. With regard to the clinical program, our immediate focus is on reviewing the data emerging from the Phase 1/2 study to determine how best to capture the diverse set of benefits we've seen, where we observe the strongest signals, and what we consider to be the optimal endpoint for the Phase 3. Of course, that determination will also take into account FDA's guidance and advice. And we're very encouraged by the approach the agency has taken with us under Breakthrough Therapy designation to expedite the drug's development. As soon as, we're able to do so, we will share our final study design for the pivotal trial in relapsed/refractory AML population. Our goals to initiate this Phase 3 trial in mid-2018 and this will be the key operational focus for the company. In addition to the clinical update, we are thrilled that preclinical data that further elucidates GMI-1271's mechanism of action has been accepted for second oral presentation at ASH. In the preclinical study that is a subject of our abstract, in Murine Models of AML, E-selectin was up-regulated, and AML cells binding to E-selectin increased chemo-resistance by activating specific tumor cell survival signaling pathways. We further report that this effect is unique to E-selectin as compared to other vascular adhesion molecules, and that it can be blocked by GMI-1271. This translational research provides important evidence that elucidates how treatment with GMI-1271 appears to be improving sensitivity to chemotherapy. Given response rates that we've observed to date, that suggest improved clinical benefit in combination with chemotherapy in two AML populations, this preclinical work provides important further support for the mechanism of action of the drug candidate. I'd also like to share with you some additional exciting preclinical research on GMI-1271. Our Phase 1/2 studies, as you know, are evaluating GMI-1271 in newly diagnosed patients fit for chemotherapy and in the relapsed/refractory setting. The new information is that we have now completed preclinical studies, in which synergistic antitumor effects we're observed, when GMI-1271 was combined with hypomethylating agent. This data is important, because it supports our plan to expand the use of GMI-1271 into a third AML setting, namely the unfit-for-chemotherapy setting. Here patients are typically treated with hypomethylating agents, because they are considered to be too vulnerable to the side effects of intensive chemotherapy. Specifically, in a Murine Model of AML, we have now shown that when GMI-1271 is added to 5- 5-Azacytidine, overall survival is significantly increased over 5-Azacytidine alone. This new research provides compelling scientific support to expand clinical testing of GMI-1271 in this otherwise unfit patient population to attempt to boost the antitumor activity of hypomethylating agents. We plan to submit this preclinical data to an upcoming scientific meeting. I'd like to take a minute to recap, what we believe will be the differentiating features of this drug candidate. First, we believe it has the potential for wide use in AML across the three key treatment settings I outlined a moment ago. Most other drugs in development in AML are limited to more narrow patient sub-groups. And second, we believe that GMI-1271 has the potential both to improve cancer-related outcomes including survival, and also importantly, to improve tolerability of the underlying chemotherapy regimen. Given the potential to use GMI-1271 in multiple AML treatment settings, you should also note that we are actively exploring clinical studies that could be conducted in addition to the planned registration study in relapsed/refractory AML. I'm pleased to share with you that we've been approached by a number of experienced and world-renowned clinical consortia in the U.S. and Europe that are interested in sponsoring clinical trials of GMI-1271. This level of independent unsolicited inbound interest is important validation for the data we've generated to date. And also provides a significant potential market expansion opportunity for GlycoMimetics, allowing the company to more fully-explore potential uses of the drug that may otherwise be possible in this timeframe. With this likely support, we can define a comprehensive development program for GMI-1271. Our goal is to eventually expand the label to multiple patient populations across the continuum of care in AML. Based on this, we're working toward initiating a consortium funded clinical trials in 2018. In addition, to the registration study in the relapsed/refractory AML setting. Further details related to these plans will be shared in the coming months. Before turning to the rest of our clinical pipeline, I would like to remind you that during third quarter, we announced that the European Patent Office issued an intention-to-grant letter to us. The European patent covering Composition of Matter of GMI-1271 has now been granted, complementing the issued U.S. Composition of Matter Patent. These provide coverage on the drug itself to 2032 in both the U.S. and Europe. Together, these issued patents are part of GlycoMimetics' expanding patent portfolio covering the drug candidate GMI-1271 and methods of use in a variety of indications including various cancers. You'll also remember that we have an ongoing study in Europe evaluating GMI-1271 in a proof-of-concept trial in multiple myeloma. We initiated that trial in Ireland and have now expanded to major myeloma research centers in England, Germany and Denmark. We anticipate initial data from that study in 2018. Now, let's quickly review our other pipeline programs. According to our collaborative partner, Pfizer, the rivipansel Phase 3 in sickle cell crisis continues to be on track for completing in the second half of 2018. If successful and if Pfizer secures an approval, we remind you that there are substantial potential economics due to us. This includes a significant milestone payment for acceptance of the NDA. We remain confident about the outlook for rivipansel as it offers a unique positioning in the acute treatment setting for vaso-occlusive crisis of sickle cell disease. For GMI-1359, our novel combined E-selectin and CXCR4 antagonist, enrollment of our Phase 1 in healthy volunteers is completed. And we're in the process of defining plans for trial in patients. The details of which we anticipate discussing further during 2018. Finally, I want to let you know that we continue to research additional novel compounds based on our specialized chemistry platform. This focus is now on the galectins, which are important targets in cancer and fibrosis. In addition, we continued pre-clinical studies to explore further possible uses of the drugs currently in the clinic, as well as for potential follow-on compounds. We are pleased to be in a strong financial position to pursue these many exciting opportunities and we look forward to important milestones over the next 12 to 18 months. Now, having given you an overall perspective on our progress and plans, I would like to open the call to your questions. Operator?