Scott Cormack
Analyst · William Blair. Your line is open
Thanks, Jim. Good afternoon everyone and thank you for joining us. Following the close of the third quarter, we find ourselves in a pivotal time for the company, as we await the first AFFINITY data readout by the end of this year and a number of other significant readouts over the next 12 months. On the call today, I will provide an update on our Custirsen and Apatorsen clinical programs and preview anticipated milestones through the end of this year and into 2016. John will provide a review of our financial results for the third quarter and we’ll conclude the call with questions. Let me start with Custirsen program and the first of two important milestones from our Phase 3 AFFINITY trial. The AFFINITY trial is evaluating the survival benefit of Custirsen in combination with docetaxel treatment as second line chemotherapy in men with metastatic castrate-resistant prostate cancer. The first of two analysis to be conducted will determine the ability of Custirsen to extend survival in a prospectively defined subgroup of men who are at increased risk for poor outcomes. This group is comprised of men having two or more of five common clinical features, including poor performance status, elevated PSA, elevated LDH, decreased hemoglobin, and the presence of liver metastasis. This patient selection criteria was developed in collaboration with study investigators and key opinion leaders following analysis that are identified patients who significantly benefit from Custirsen in the Phase 3 synergy trial. Being able to prospectively identify these patients, we provide guidance for physicians to determine which patients are most appropriate to receive Custirsen and may also lead to earlier product registration. In order to reach a statistically significant survival benefit in the subgroup, we’re required to reach a hypothesized hazard ratio of 0.69 with the clinical hazard ratio being less than or equal to 0.78. Following discussions with both FDA and EMA earlier this year, we’re confident in our ability to proceed with plans for regulatory submission for the subgroup population based on the patient selection criteria. Again, we expect to have these data by the end of this year. At the same time is the final analysis for the subgroup, interim analysis for both utility and efficacy are scheduled to occur in the intent to treat or entire patient population, of the AFFINITY trial. If this interim analysis shows early efficacy, we’d proceed with an NDA filing for the entire trial population. If the early efficacy interim analysis does not show a highly significant difference, the study will continue as planned with final results expected in the second half of 2016. To reiterate, the subgroup and ITT are separate analysis for survival benefit. In the event of the subgroup analysis as positive, we’d proceed with discussions with the FDA on an IND filing. A growing body of evidence points to the roll of clusterin plays in blocking the effects of many known therapeutic agents. Preclinical studies have shown that tumor cells that over express clusterin are likely to display more aggressive behavior and respond less well to chemotherapy, radiation or hormone ablation therapy. At the 2015 European Cancer Congress or ECC meeting Vienna this past September, we presented data that look to serum clusterin levels from men in the SYNERGY trial who had metastatic CRPC. The analysis show that Custirsen treatment significantly lowered serum clusterin levels from baseline in men with metastatic CRPC. In addition, these data showed that serum clusterin reductions during Custirsen treatment resulted in higher two-year survival rates in those patients who were at increased risk for poor outcomes. Of those patients with lower serum clusterin levels, the data also showed a correlation to an overall survival benefit for Custirsen-treated patients who were at increased risk. We believe this data supports the important benefit Custirsen may bring to these patients. Before I turn to an update on our second product candidate, Apatorsen, I’d like to review the current status of the Phase 3 ENSPIRIT trial. ENSPIRIT is evaluating the ability of Custirsen in combination with docetaxel treatment as second line chemotherapy to extend survival in patients with non-small cell lung cancer. A protocol amendment to the statistical design and analysis plan of the ENSPIRIT trial was submitted to approved by all regulatory agencies in participating countries. We believe this amendment specifically detailing the revised statistical thresholds, are more appropriately aligned to the interest of both treating clinicians and their patients, because the statistical threshold for efficacy is more aligned to clinical relevance. Based on current ENSPIRIT enrollment projections, we believe final survival results could be available in the second half of 2016. I’d now like to move to our other lead product candidate, Apatorsen. Apatorsen is designed to inhibit the production of Hsp27. Over expression of Hsp27 is thought to be an important factor leading to the development of treatment resistance and is associated with metastasis and negative clinical outcomes in patients with various tumor types. We are studying Apatorsen across multiple cancer indications and in the past quarter had two important updates for metastatic bladder cancer program. Patients living with advanced metastatic bladder cancer typically have poor prognosis with very limited therapeutic options. At the ECC meeting, we presented additional analysis of data from the Borealis-1 trial, confirming that patients with advanced bladder cancer identified is having increased risk for poor outcomes also had increased baseline levels of serum heat shock protein 27, as well as increased circulating tumor cells. The study showed that baseline Hsp27 and circulating tumor cell levels were additional risk factors for survival outcomes. This data further validates the subgroup classifications for poor versus good prognostic risks in the Borealis-1 analysis, which showed that patients with advanced disease were specific poor prognostic risk factors experienced a clinical benefit with Apatorsen. These data have also been accepted for an oral presentation at the upcoming European Multidisciplinary Meeting on Urological Cancers on November 14 in Barcelona. Our second Phase 2 Apatorsen trial metastatic bladder cancer called Borealis-2, completed patient enrollment in the third quarter. The investigator-sponsored, randomized, Phase 2 trial has met the target enrollment of 200 patients and will evaluate over all survival with Apatorsen in combination with docetaxel in patients with advanced or metastatic bladder cancer who have disease progression following first-line platinum-based chemotherapy. Borealis-2 is sponsored by the Hoosier Cancer Research Network and its being conducted at 27 sites across the United States. We expect to announce these results in 2016. Our Spruce trial is an investigator-sponsored, randomized, placebo-controlled Phase 2 trial in patients with previously untreated advanced non-squamous non-small cell lung cancer. The aim of the trial is to determine if adding Apatorsen to carboplatin and pemetrexed therapy can extend progression free survival outcome compared to carboplatin and pemetrexed alone. Additional analysis or expected to improve tumor response rates, overall survival, safety, tolerability, and the effective therapy on Hsp27 levels. Patients who were at increased risk for poor outcomes will also be prospectively evaluated. This trial was initiated in August 2013 and patient enrollment was completed in February 2015. Our primary progression free survival end point data is expected in the first quarter of 2016, we’ve continued to overall survival follow-up. We have two additional investigator-sponsored Phase 2 trials in ORCA program. Our Spruce-2 trial in untreated advanced squamous non-small cell lung cancer broadly called Cedar is currently enrolling patients. The specific trial is being conducted in men with castrate-resistant prostate cancer who are experiencing a rising PSA while receiving Zytiga. The trial is also continuing enrollment to patients. That concludes my update on our recent product candidate developments. I’ll now invite John to provide an overview of our financial results for the third quarter of 2015. John?