Ali Fattaey
Analyst · SunTrust Robinson and Humphrey. Your line is now open
Thank you, Jim. Good morning everyone, and thank you for joining us today. I'd like to start today with providing a brief overview and also contexts for our progress from last year into 2017 and I'll also describe our expectations for this year. Our business plan calls for Curis to have multiple oncology drug candidates that we develop and that we expect to commercialize in certain territories should they be approved. Our pipeline currently includes four drug candidates, two of which are in clinical development, and two in pre-IND state. In 2016, we initiated a Phase 2 trial for our clinical candidates CUDC-907, the results of which if successful should play CUDC-907 on a path for potential accelerated approval with the FDA. We also advanced our second drug candidate CA-170 into Phase 1 clinical testing. Furthermore we initiated IND enabling studies for our two non-clinical candidates CA-327 and CA-4948. Now in 2017 we expect the initial readouts from the clinical trials of CUDC-907 and CA-170 these data should serve as proof-of-concept to demonstrate that each can be an active drug for treatment of patients with certain cancers. We also expect to file IND for and began to examine CA-327 and CA-4948 in patients with advanced cancers this year. Before I began with the status update for each of these programs, I’d like to note the press release from this morning regarding our recent financing transaction that is secured with Erivedge royalty. As indicated, we worked with HealthCare Royalty Partners on a $45 million non-recourse loan to Curis that will be repaid with Erivedge royalty payments that we received from Genentech. As I just described, we do have an ambitious year ahead of us with expectation of four programs in clinical development. The capital proceeds from this facility allow us to not only expand the development of our current clinical candidates CUDC-907 and CA-170, but to also bring CA-327 and CA-4948 into the clinic as expeditiously as possible this year. We expect that with the existing capital and this facility our cash runway will be extended significantly beyond the initial data readouts for CUDC-907 and CA-170 clinical trials and well into the first half of 2018. It is now my pleasure to provide an update on the status of each of our drug candidate programs. I would like to begin with CA-170 the first orally administered small molecule checkpoint antagonist to go into the clinic from our collaboration with Aurigene. CA-170 targets the PD Ligands and VISTA inhibitory immune checkpoints. Patient dosing in the Phase 1 trial of CA-170 began in June of 2016 with a fixed 50 milligrams starting dose using a once daily continuous administration schedule. By the end of 2016, we completed enrollment in the fourth escalating dose cohort of 400 milligram daily dose. We are currently enrolling patients in the sixth cohort of 800 milligram daily dose. Dose escalation has progressed on track through these levels dose levels with no limiting safety events thus far. All patients have thus far been enrolled in the U.S. and have either had prior treatment with immunotherapy or have cancers that are not yet indicated for such treatments. We presented preliminary pharmacokinetic or PK and pharmacodynamic or PD data from patients treated in the initial four dose cohorts at the Society for Immunotherapy of Cancer or SITC Annual Conference in November of 2016. Analysis of clinical plasma PK indicated that similar to non-clinical observations CA-170 is readily absorbed on oral dosing in men has a linear and dose proportional increase in exposure as determined by Cmax and AUC measurements it has a 10 to 12 hour half-life in men, and does not appear to accumulate after multiple dosing. Significant patient exposure was also observed at the starting 50 milligram daily dose and it reached similar Cmax and AUC levels as what we observed in non-clinical active dose of 10 milligram per kilogram that was used in mouse tumor model studies. During that presentation evaluation of patient whole blood samples had pre and post CA-170 oral dosing at doses examined thus far have also demonstrated a several fold increase in the circulating population of activated T-cells after CA-170 dosing. These CD8+ sides of toxic T-cells express markers of activation including CD-69, the OX40 costimulatory receptor and Granzyme B that we looked at. These initial PD readouts indicate that CA-170 is biologically active and can result in immune activation at examine doses has measured in the peripheral blood from treated patients. Now our current efforts for CA-170 trial in the first half of 2017 are focused on two fronts. First, enrollment of immunotherapy treatment naïve patients with cancers that are eligible for treatment with approved anti-PD1 or anti-PDL1 antibodies in the U.S. In this regard, we have recently been granted approval to enroll immunotherapy treatment naïve patients with melanoma, non-small cell lung cancer, renal, bladder, forehead neck cancers in an extension of the Phase 1 trial of CA-170 in Korea and Spain. Additional approvals for enrollment of patients with these cancers in other European countries is expected through this and next quarter. Second, analysis of tumor biopsies from patients pre and post CA-170 treatment to assess their immune profile. These analyses are include detecting the expression of inhibitory checkpoints on tumor tissue, the expression of cell surface markers on different immune cells that infiltrate within the tumor, as well as gene expression patterns of immune related genes of interest. These analyses are intended to assess the immune modulating activity of increasing CA-170 doses within the patient’s tumors as well as inform potential correlates of CA-170 clinical activity and or safety signals. We expect to analyze the initial Phase 1 clinical profile of CA-170 early in the second half of 2017, based on data from approximately 30 to 40 patients with respect to PK, PD safety and clinical activity. I would now like to update on CUDC-907. CUDC-907 is being investigated to assess its efficacy as a monotherapy treatment in an ongoing Phase 2 trial in up to 60 patients with relapsed/refractory MYC-altered diffuse large B cell lymphoma, or DLBCL. Studies have shown that approximately 35% of patients with DLBCL have MYC-alterations, which is associated with a significantly poor prognosis in the first and second lines of treatment as well as even after autologous stem cell transplant. Although small clinical studies using experimental agents with various mechanisms of action have shown clinical benefit in patients with advanced DLBCL randomized studies have shown the treatment of patients with relapsed refractory DLBCL with commonly used chemotherapy resulting approximately 10% to 15% objective response rates and median progression free survival of two and half to three months. As we have previously reported on the Phase 1 trial of CUDC-907 of the 25 patients with relapsed refractory DLBCL treated with monotherapy CUDC-907, eight patients achieved an objective response including three with complete responses. Importantly five of the responders including all patients with complete response had MYC-altered disease. Additionally duration of treatment was over six months for responders on CUDC-907 monotherapy. The Phase 2 trial of CUDC-907 is currently enrolling patients in 22 centers in the U.S. and in Europe, and we expect to complete enrollment within the first half of this year. The primary endpoint of the Phase 2 study is objective response rate in up to 60 patients with MYC-altered relapse refractory DLBCL. Secondary endpoints of durability of benefits and safety will also be evaluated. We expect to analyze sufficient clinical data from this study by mid-to-early second half of this year to provide the basis for requesting a meeting with the FDA to discuss a potential path for accelerated approval of monotherapy CUDC-907 in this patient population. I would now like to briefly update on the status of our two pre-IND drug candidates. In October of 2016, we exercise our option to license the second immuno-oncology program in our partnership with Aurigene. The development candidate from this program CA-327 is an orally bio-available small molecule that targets PDL1 and TIM3 inhibitory immune checkpoints. Initial characterization and preclinical profile of CA-327 was presented by our Aurigene colleague at scientific conferences in November of 2016. CA-327 is currently completing IND-enabling studies and we expect to file an IND for this drug candidate early in the second half of 2017 and began its clinical development soon thereafter. We have also continued characterization of CA-4948, which is the development candidate from our IRAK4 program in collaboration with Aurigene. CA-4948 has been shown to be active in vivo xenograft models of human lymphoma and we have continued to assess this activity in additional models of other hematologic malignancies as well. CA-4948 is also currently completing IND-enabling studies and we expect to file an IND by mid 2017 for its testing in the Phase 1 clinical trial in patients with hematologic malignancies. Lastly we are pleased to note Roche and Genentech’s continued commitment to commercialize Erivedge globally for the treatment of patients with advanced basal cell carcinoma, as well as their efforts to explore Erivedge income combination therapy trial for the treatment of patients with idiopathic pulmonary fibrosis or patients with myelofibrosis. With that I will turn the call over to Jim for a discussion of our financial results as well as providing further details on the loan facility with HealthCare Royalty Partners. Jim?