Scott Cormack
Analyst · Stifel. Your line is now open. Please proceed with your question
Thanks, Jim. Good afternoon and thank you for joining us. Today I will provide an update on several - our key clinical programs, including a preview of data through presented later this month at the American Society of Clinical Oncology Annual Meeting in Chicago. John will then conclude with a review of our financial results for the first quarter and then we’ll open the call to questions. Our two clinical stage assets, Custirsen and Apatorsen are currently being evaluated in two Phase 3 studies and five Phase 2 studies respectively across a variety of cancer indications. Both of these programs have multiple clinical data readouts in the near term making the coming months very exciting. We now have substantial clinical evidence indicating that our products have the potential to improve survival in the most vulnerable patients, those who have an increased risk for poor outcomes. Recent data have shown that patients in the SYNERGY and Borealis-1 trials who had poor prognosis live longer when treated with Custirsen and Apatorsen. I'm pleased to announce the data for both of these trials will be presented at the ASCO Annual Meeting in a couple of weeks along with updates on the Borealis-2 and Cedar trials that will be highlighted as trials in progress. The abstracts are now available on ASCO's website. Let me start with the data to be presented on SYNERGY and how that reinforces our ongoing belief that Custirsen benefits patient's with the greatest therapeutic need. These findings are significant, as our ongoing AFFINITY and ENSPIRIT Phase 3 Custirsen trials include a higher percentage of patients who are at risk - increase risk for poor outcomes. Results from the Phase 3 SYNERGY trial and subsequent exploratory analysis to be presented at ASCO show Custirsen provided a meaningful benefit in men who had a poor prognosis. The new data presented at ASCO will provide a more in-depth analysis of survival in the subgroup. Let me take a few minutes to review while we think these findings have a significant impact on the future development of Custirsen. As expected we found in the SYNERGY trial the men with commonly risk factors were at the greatest risk for poor outcomes. These risk factors included poor performance status, elevated prostate specific antigen, or PSA, elevated lactate dehydrogenase, or LDH, decreased hemoglobin, or the presence of liver metastases. Nearly half of the patients in the SYNERGY trial had at least two of these five risk factors and results show these men had a 27% reduction in risk of death when treated with Custirsen. In fact, had these criteria been perceptively defined as a primary endpoint, the trial would have shown a statistically significant survival benefit. These data underscore the importance of assessing clinical benefit for specific patient sub populations that are most likely to benefit from Custirsen treatment. We're scheduled to meet with the FDA in June, to discuss our proposed amendment to the Phase 3 AFFINITY trial and statistical analysis plan to include a co-primary endpoint evaluating survival benefit in men who are at increased risk for poor outcomes. We are also seeking advice from other regulatory agencies regarding this amendment. We expect to report topline results from the AFFINITY Phase 3 trial later this year or in early 2016. Our Phase 3 Custirsen trial ENSPIRIT is evaluating non-small cell lung cancer patients who have progressed following initial treatments. While we are in the process of making other amendments to the ENSPIRIT study that I'll outline in a moment, we are not at this time amending the statistical analysis plan to include a co-primary endpoint evaluating survival benefit in patients who are at increased risk for poor outcomes. That is because at the time of the initial futility analysis, approximately 80% of the patients in this trial had at least one poor prognostic risk factor. Given the aggressiveness of non-small cell lung cancer and the high percentage of patients in this trial with at least one risk factor, we believe the ENSPIRIT trial may already be in reg for the desired patient population. Last month we announced that we've filed an amendment to the ENSPIRIT trial protocol to provide us with a more expedient path to assess Custirsen's potential survival benefit in the hope so we can bring much needed treatment options to patients suffering from non-small cell lung cancer. We follow the protocol amendment with the FDA and have initiated or will be initiating filings with regulatory agencies in other countries as we become the sponsor in those specific regions. Let me take a few minutes to review these important changes. First, we provided the hypothesized hazard ratio from 0.80 to 0.75, while maintaining 90% power. This also changes the critical hazard ratio from 0.87 to a more meaningful and clinically relevant hazard ratio of 0.84. Recent non-small cell lung cancer drug approvals have hazard ratios that were 0.86 and lower. We believe that our revised thresholds are more appropriately aligned to the interest of both treating clinicians and their patients. As a result, the required number of patients the trial decreases from 1,100 to 700 patients. Second, the final futility analysis is now designed to be more rigorous and will take place when 40% of the events occur instead of the original 50%. This analysis is expected to occur in the next few months. As a reminder, the trial results will remain blinded to all parties unless futility is observed. Third, an evaluation of overall survival by patient histology and custirsen's efficacy among patients with varying risk factors and disease parameters will now be conducted. Finally, based on current enrollment and the changes discussed, we believe final survival results could be available as soon as the second half of 2016. Let's now switch to our Apatorsen program which is currently the subject of five ongoing Phase 2 investigator sponsor studies in bladder, lung, prostrate, and pancreatic cancers. An update on the global Phase 2 Borealis-1 trial in metastatic bladder cancer will be provided in ASCO oral session. The fact that this is an oral presentation underscores the importance of these data. In December 2014, we announced the results from this trial indicated that patients with lower performing status, as defined as prognostic score of 80% or less derive the greatest benefit from 600 milligram apatorsen in combination with chemotherapy. The result was a 50% reduction in risk of death compared to chemotherapy alone. Data presented at ASCO will provide further analysis of the impact of apatorsen in patients with specific poor prognostic risk factors. These results along with our previous Phase 1 trial in superficial bladder cancer who received apatorsen intravesically demonstrate the potential of this compound across the paradigm of bladder cancer treatment. Given the urgent needs to new bladder cancer treatments and our results to-date, we are working closely with investigators and planning to engage regulatory agencies to determine next steps. Finally, we have two posters featured in trials and progress. The first is Borealis 2, and the investigators sponsored randomized Phase 2 trial, evaluating apatorsen in combination with docetaxel in patients with advanced or metastatic bladder cancer. And who have disease progression following first line platinum based chemotherapy. This trial is sponsored by the Hoosier Oncology Group, and is currently enrolling patients. The second poster is on Cedar, an investigator sponsored randomized open label Phase 2 study evaluating apatorsen in previously untreated patients with advanced squamous cell lung cancer. The primary objective of this trial is progression free survival with secondary objectives to evaluate tumor response rates, overall survival, safety, tolerability, and health related quality of life. Additional analysis will be conducted to determine the effect of therapy on Hsp27 levels and to explore potential biomarkers that may help predict response to treatment. Over the next 12 months, we expect a number of significant clinical events from several apatorsen clinical trials within the ORCA program that are currently evaluating patient survival in some of the most aggressive tumor types, and we look to providing you with additional updates as these events occur. That concludes my update on our recent development progress. I would now like to invite John, to provide an overview of our financial results for the first quarter of 2015. John?