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OGXI > SEC Filings for OGXI > Form 10-Q on 8-Nov-2012All Recent SEC Filings

Show all filings for ONCOGENEX PHARMACEUTICALS, INC. | Request a Trial to NEW EDGAR Online Pro

Form 10-Q for ONCOGENEX PHARMACEUTICALS, INC.


8-Nov-2012

Quarterly Report


Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

INFORMATION REGARDING FORWARD LOOKING STATEMENTS

This document contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements involve a number of risks and uncertainties. We caution readers that any forward-looking statement is not a guarantee of future performance and that actual results could differ materially from those contained in the forward-looking statement. These statements are based on current expectations of future events. Such statements include, but are not limited to, statements about future financial and operating results, plans, objectives, expectations and intentions, costs and expenses, interest rates, outcome of contingencies, financial condition, results of operations, liquidity, business strategies, cost savings, objectives of management and other statements that are not historical facts. You can find many of these statements by looking for words like "believes," "expects," "anticipates," "estimates," "may," "should," "will," "could," "plan," "intend," or similar expressions in this document or in documents incorporated by reference into this document. We intend that such forward-looking statements be subject to the safe harbors created thereby. Examples of these forward-looking statements include, but are not limited to:

progress and preliminary and future results of clinical trials conducted by us or our collaborators;

anticipated regulatory filings and requirements and future clinical trials conducted by us or our collaborators;

timing and amount of future contractual payments, product revenue and operating expenses;

market acceptance of our products and the estimated potential size of these markets; and

our anticipated future capital requirements and the terms of any capital financing agreements.

These forward-looking statements are based on the current beliefs and expectations of our management and are subject to significant risks and uncertainties. If underlying assumptions prove inaccurate or unknown risks or uncertainties materialize, actual results may differ materially from current expectations and projections. Factors that might cause such a difference include those discussed in Item 1A "Risk Factors," as well as those discussed elsewhere in the Quarterly Report on Form 10-Q. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this document or, in the case of documents referred to or incorporated by reference, the date of those documents.

All subsequent written or oral forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section. We do not undertake any obligation to release publicly any revisions to these forward-looking statements to reflect events or circumstances after the date of this document or to reflect the occurrence of unanticipated events, except as may be required under applicable U.S. securities law. If we do update one or more forward-looking statements, no inference should be drawn that we will make additional updates with respect to those or other forward-looking statements.

Overview

We are a biopharmaceutical company committed to the development and commercialization of new therapies that address treatment resistance in cancer patients. We have three product candidates in our pipeline, custirsen, OGX-427, and OGX-225, each of which has a distinct mechanism of action and represents a unique opportunity for cancer drug development. Of the product candidates in our pipeline, custirsen and OGX-427 are clinical-stage assets.

Our product candidates custirsen, OGX-427, and OGX-225 focus on mechanisms of treatment resistance in cancer patients and are designed to block the production of specific proteins that we believe promote survival of tumor cells and are over-produced in response to a variety of cancer treatments. Our aim in


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targeting these particular proteins is to disable the tumor cell's adaptive defenses, thereby rendering the tumor cells more susceptible to attack with a variety of cancer therapies. We believe this approach will increase survival time and improve the quality of life for cancer patients.

Product Candidate Custirsen

Custirsen is our product candidate designed to inhibit the production of clusterin, an antiapoptotic, stress-induced protein we believe promotes survival of cancer cells when overexpressed in a variety of tumors. We and collaborating investigators have conducted five phase 2 clinical trials to evaluate the ability of custirsen to enhance the effects of therapy in prostate, non-small cell lung and breast cancers. Results have been presented for each of these phase 2 trials. Data from these phase 2 studies demonstrate the potential benefit of adding custirsen, a second generation antisense molecule, to existing cancer therapies.

In December 2009, we announced that our wholly owned subsidiary, OncoGenex Technologies Inc., or OncoGenex Technologies, entered into a Collaboration and License Agreement dated December 20, 2009, or Collaboration Agreement, with Teva Pharmaceutical Industries Ltd., or Teva, for the development and global commercialization of custirsen (and related compounds targeting clusterin, excluding OGX-427 and OGX-225). On March 6, 2012, OncoGenex Technologies and Teva entered into an amendment to the Collaboration Agreement, or the Collaboration Agreement Amendment. Under the Collaboration Agreement Amendment, OncoGenex Technologies and Teva revised the clinical development plan, or Amended Clinical Development Plan, under which the following three phase 3 clinical trials have been initiated:

The SYNERGY Trial: The phase 3 clinical trial to evaluate a survival benefit for custirsen in combination with first-line docetaxel treatment in patients with castrate resistant prostate cancer, or CRPC. During discussions with the U.S. Food and Drug Administration, or FDA, the FDA informed us that an application supported primarily by the results of SYNERGY alone would be acceptable for submission for market approval. SYNERGY patient enrollment was completed in the fourth quarter of 2012. Over 1,000 men have now been enrolled in order to show a survival benefit with 90% power based on a hazard ratio of 0.75. Our expected timing of results for the survival primary endpoint is based on a pre-specified number of death events that is currently projected to occur in the fourth quarter of 2013.

The AFFINITY Trial: The phase 3 clinical trial to evaluate a survival benefit for custirsen in combination with cabazitaxel treatment as second-line chemotherapy in patients with CRPC. We expect to enroll approximately 630 patients to show a survival benefit with 85% power based on a hazard ratio of 0.75, or an approximate 25% increase in survival time. We initiated this phase 3 clinical trial in August 2012.

The ENSPIRIT Trial: The phase 3 clinical trial to evaluate a survival benefit for custirsen in combination with docetaxel treatment as second-line chemotherapy in patients with non-small cell lung cancer, or NSCLC. We expect to enroll approximately 1,100 patients in order to show a survival benefit with 90% power based on a hazard ratio of 0.80, or an approximate 20% increase in survival time. This trial was initiated by Teva in September 2012. Two formal interim analyses are planned for stopping the trial early based on inadequate evidence of clinical benefit or futility. We will be evaluating both PFS and OS during the interim analyses. If both endpoints meet the predefined criteria for inadequate PFS clinical benefit and OS futility the trial would be stopped. The trial will not be stopped early in order to claim efficacy.

For detailed information regarding our relationship with Teva and the Collaboration Agreement, refer to the discussion under the heading "Business-License and Collaboration Agreements-Teva Pharmaceutical Industries Ltd." included in our 2011 Annual Report on Form 10-K filed on March 8, 2012.


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Custirsen received Fast Track designation from the FDA for the treatment of progressive metastatic prostate cancer in combination with docetaxel. The FDA has also agreed on the design of the SYNERGY trial through the special protocol assessment process.

We have also received written, scientific advice from the European Medicines Agency, or EMA, on our development plan for custirsen for treating patients with CRPC in combination with docetaxel, which aligned with our development plan regarding the proposed preclinical studies and both the study design and analyses for the phase 3 SYNERGY trial. In addition, the Committee for Medicinal Products for Human Use agreed that the intended safety database would enable a sufficient qualified risk-benefit assessment for market approval.

Our phase 3 registration trials have been designed based on our phase 2 clinical results, including:

A randomized phase 2 trial evaluating the benefit of combining custirsen with first-line docetaxel, the final results of which were published in the September 20, 2010 issue of the Journal of Clinical Oncology. Analyses indicated a survival benefit in patients treated with custirsen in combination with first-line docetaxel compared to docetaxel alone, the latter being the current standard of care for patients with advanced, progressive metastatic prostate cancer requiring initial chemotherapy. In summary, the median survival was 23.8 months for patients treated with custirsen in combination with first-line docetaxel and 16.9 months for patients treated with first-line docetaxel alone, with an unadjusted hazard ratio of 0.61. These results are described in our 2011 10-K filed on March 8, 2012 under the heading "Business-Our Product Candidates-Custirsen-Summary of Results of Custirsen Phase 2 Clinical Trials". Due to the results of the phase 2 trial, the SYNERGY trial will evaluate the survival benefit of custirsen in patients treated with first-line chemotherapy.

A phase 2 trial evaluating patients with metastatic CRPC who progressed while receiving, or within six months of completing, first-line docetaxel treatment. The median overall survival duration for the custirsen plus mitoxantrone arm was 11.5 months and for the custirsen plus docetaxel re-treatment arm was 15.8 months. Upon completion of the randomized study, an amendment allowed 25 additional patients to be treated with custirsen plus docetaxel re-treatment. The additional 25 patients had higher serum clusterin levels at enrollment than the randomized patients and the median overall survival duration for all 45 patients (20 randomized plus 25 additional patients) treated with custirsen plus docetaxel re-treatment was 12.8 months. Of the patients on this trial who had pain or were on opioids for pain control and were retreated with docetaxel as second-line treatment in combination with custirsen, approximately 50% had durable pain palliation. Pain responses in patients receiving custirsen in addition to docetaxel treatment as second-line therapy were favorable when compared to the pain responses reported for patients in the phase 3 TROPIC trial that led to the 2010 approval of cabazitaxel in the United States for patients who had previously received treatment with chemotherapy, and the abiraterone acetate phase 3 trial that led its 2011 approval in the United States for patients who had previously received treatment with chemotherapy. In the TROPIC trial, which evaluated a similar patient population for second-line chemotherapy as was evaluated in our phase 2 trial (i.e., patients who had progressed while on or soon after first-line docetaxel therapy), the pain response for cabazitaxel was 9.2% and for mitoxantrone was 7.7%. In the abiraterone acetate phase 3 trial, the proportion of patients with pain palliation among patients with a baseline pain score of four or more and at least one post-baseline pain score was 44% for patients receiving abiraterone and prednisone as compared with 27% for patients receiving prednisone and placebo. In August 2012 we initiated a phase 3 trial, referred to as the AFFINITY trial, evaluating the survival benefit of custirsen in combination with cabazitaxel as second-line chemotherapy. This trial is enrolling patients who have previously received first-line docetaxel therapy.

A phase 2 trial evaluating 81 patients with advanced NSCLC who received custirsen in combination with gemcitabine and a platinum chemotherapy (cisplatin or carboplatin) as first-line


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chemotherapy. The median overall survival was 14.1 months and 54% of patients survived at least one year. Thirty percent of patients who received custirsen with first-line chemotherapy survived at least two years. For comparison, published studies using a platinum-based regimen plus gemcitabine as first-line chemotherapy for advanced NSCLC reported median survivals of 8 to 11 months and one-year survival rates of 33% to 43%. Market approval for Roche's Avastin plus paclitaxel and carboplatin chemotherapy for NSCLC was based on results showing a median survival of 12.3 months compared to 10.3 months for patients treated with chemotherapy alone. Survival rates for Avastin plus chemotherapy versus chemotherapy alone were reported as 51% versus 44% at one year and 23% versus 15% at two years, respectively. In a phase 3 trial evaluating first-line treatment of NSCLC patients with either cisplatin plus pemetrexed or cisplatin plus gemcitabine, overall survival was 10.3 months for both treatment groups, however overall survival for patients treated with cisplatin and pemetrexed who had adenocarcinoma or large-cell carcinoma histology was 12.6 months and 10.4 months, respectively.

Recently, we updated our clinical development program for custirsen with our partner, Teva, initiating a Phase 3 clinical trial in NSCLC, referred to as the ENSPIRIT trial. This trial evaluates the potential survival benefit of custirsen in combination with docetaxel as second-line chemotherapy.

Product Candidate OGX-427

OGX-427 is our product candidate that is designed to inhibit production of heat shock protein 27, or Hsp27, a cell-survival protein expressed in many types of cancers including prostate, bladder, breast and non-small cell lung cancer. Hsp27 expression is stress-induced, including by many anti-cancer therapies. For example, Hsp27 levels increased four-fold in prostate cancer patients after treatment with chemotherapy or hormone therapy. Overexpression 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.

Our current OGX-427 development activities include the following clinical trials that have been or are expected to be initiated:

An investigator-sponsored phase 2 clinical trial evaluating OGX-427 when administered with prednisone to patients with CRPC has completed enrollment with data collection ongoing. This randomized, controlled phase 2 clinical trial enrolled 74 patients who had minimally symptomatic or asymptomatic advanced prostate cancer and who had not yet received chemotherapy. This trial is measuring the direct effect of OGX-427 on prostate-specific antigen, or PSA, levels, time to progression by PSA or measurable disease, numbers of circulating tumor cells, or CTCs, and other relevant secondary endpoints. Preliminary data were presented at several conferences throughout 2012, most recently at the European Society for Medical Oncology (ESMO) meeting in September 2012.

An investigator-sponsored, controlled phase 2 study evaluating OGX-427 in combination with abiraterone acetate for the treatment of CRPC, is expected to begin enrollment in late 2012 or early 2013. This trial will be supported in part by investigator grant funding.

Our current OGX-427 development activities for bladder cancer include the following clinical trials that have been initiated:

A phase 2 clinical trial of OGX-427 in patients with metastatic bladder cancer is ongoing. The trial is currently enrolling up to 180 patients. The trial design is a three-arm, blinded, randomized phase 2 trial evaluating OGX-427 in combination with gemcitabine and cisplatin in the first-line metastatic setting. Each arm is currently enrolling approximately 60 patients; the trial has been initiated in sites throughout the United States, Canada and Europe. The trial will be conducted as


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an event-driven trial such that the final analysis will have 80% power to show a critical hazard ratio of approximately 0.66 to 0.71. This type of Phase 2 trial will allow us to better predict the potential size of and success for a phase 3 trial where a survival benefit will be the primary endpoint. We currently expect to complete patient accrual in the second half of 2013.

An investigator-sponsored phase 1 clinical trial is ongoing to evaluate OGX-427 when administered directly into the bladder in patients with bladder cancer. The trial is currently enrolling 25 patients; it is designed to determine the safety and potential benefit of OGX-427 administered into the bladder using a catheter, which is known as intravesical instillation. In addition, the trial will measure the direct effect of OGX-427 on expression of Hsp27 in bladder tumor cells, as well as determine the pharmacokinetics and pharmacodynamics of OGX-427 when delivered by intravesical instillation. This clinical trial is being funded by the National Cancer Institute of Canada. Preliminary data were presented at the ASCO GU Symposium in February 2012.

Additional phase 2 investigator-sponsored studies evaluating OGX-427 in other malignancies are under development. Further details of these studies will be provided when the trials are initiated. Results of these studies may direct future company-sponsored trials in indications that show promising clinical benefits.

Available preliminary data from our ongoing phase 1 and phase 2 clinical trials as well as a completed phase 1 trial are as follows:

Preliminary study results in our ongoing investigator-sponsored randomized phase 2 clinical trial (evaluating OGX-427 when administered in combination with prednisone to patients with CRPC) were presented at several conferences throughout 2012, most recently at the European Society for Medical Oncology (ESMO) meeting in September 2012. The preliminary data showed a higher number of patients without disease progression at 12 weeks, and greater declines in PSA and CTCs with OGX-427 plus prednisone treatment compared to prednisone alone.

Preliminary study results in our ongoing investigator-sponsored phase 1 clinical trial, evaluating OGX-427 when administered directly into the bladder in patients with superficial or muscle-invasive bladder cancer, demonstrated a trend towards decreased levels of Hsp27 and increased tumor cell death rates after intravesical treatment with OGX-427. Additionally, of the 15 patients treated with OGX-427, 33% had complete responses with no pathologic evidence of disease observed in post-surgical tissue after the four intravesical OGX-427 treatments. Preliminary data from this trial were presented at the ASCO GU Symposium in February 2012.

OGX-427 has been evaluated in a phase 1 trial in patients with bladder, breast, prostate, ovarian, or NSCLC who have failed potentially curative treatments or for which a curative treatment does not exist. Final results of this phase 1 trial were presented during an oral presentation at the ASCO 2010 annual meeting. The phase 1 trial evaluated 36 patients treated with OGX-427 as a single agent and 12 patients with OGX-427 in combination with docetaxel who had failed up to six prior chemotherapy treatments. OGX-427 as a single agent administered weekly was evaluated at doses from 200 mg up to 1000 mg in five cohorts of approximately six patients in each cohort. Two further cohorts tested OGX-427 at the 800 and 1000 mg doses combined with docetaxel. Patients could receive up to ten 21-day cycles. OGX-427 was well tolerated both as a monotherapy and in combination with docetaxel. Most adverse events were mild (grade 1 or 2) and mainly occurred during the three "loading doses" given over nine days prior to weekly dosing. The most frequently reported adverse events in the OGX-427 monotherapy arms were infusion-related reactions and chills. The most frequently reported adverse events in the OGX-427 plus docetaxel arms were infusion-related reactions, chills, fatigue, diarrhea, pruritus, nausea, and back pain. A maximum tolerated dose for OGX-427 was not reached in this trial. Thirty-three of 36 patients with prostate cancer had at least one post-baseline PSA evaluation. Three of 21 patients in the monotherapy cohorts had reductions in PSA greater than or equal to 30% as did 6 of 12 patients in the


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combination therapy cohorts. Six of seven patients with ovarian cancer had both baseline and post-baseline CA-125 measurements. All were treated with monotherapy. Three patients had a reduction of CA-125. Of particular interest was the decrease at all doses and in all diseases evaluated in the trial for both total CTCs and CTCs which were positive for Hsp27, Hsp27(+) CTCs. Recent studies have shown that the presence of CTCs in peripheral blood may be of prognostic significance for patients with solid tumors and patients with values of five CTCs or fewer are generally considered to have a more favorable prognosis. For detailed information regarding OGX-427, refer our 2011 Annual Report on Form 10-K filed on March 8, 2012 to the discussion under headings "Our Product Candidates-OGX-427-Current OGX-427 Development Activities" and "Our Product Candidates-OGX-427-Summary of Results of OGX-427 Clinical Trials".

Product Candidate OGX-225

OGX-225, an inhibitor of insulin growth factor binding proteins 2 and 5, is in preclinical development. We are currently evaluating various alternatives, including partnering, which would allow us to further the development of this preclinical asset.

Collaboration Revenue

We recorded $10.3 million of Collaboration Revenue in connection with our Collaboration Agreement with Teva in the nine months ended September 30, 2012, as compared to $4.3 million in the nine months ended September 30, 2011. At September 30, 2012, an aggregate of $9.1 million of the upfront collaboration payment was included in the balance sheet line item Current Deferred Collaboration Revenue, which we are recognizing as we incur direct and indirect development costs under the Collaboration Agreement. As the direct and indirect costs associated with the Clinical Development plan are incurred, the associated revenue from the Current Deferred Collaboration Revenue balance is recognized. Management currently expects that all remaining Current Deferred Collaboration Revenue will be recognized as Collaboration Revenue by the end of the fourth quarter of 2012. Further, we are eligible to receive payments of up to $370 million upon the achievement of developmental and commercial milestones set forth in the Collaboration Agreement. At present, we are unable to predict the timing or likelihood of such milestone payments, although we do not expect to receive any milestone payments from Teva in 2012. Moreover, Isis has disclosed in its SEC filings that it believes it is entitled to receive 30% of the up to $370 million in milestone payments we may receive from Teva as part of the Collaboration Agreement. We disagree with their assessment but believe there may be some lesser payment obligation. See Note 3 of Notes to Consolidated Financial Statements included elsewhere in this Quarterly Report on Form 10-Q for further details on our collaboration with Teva.

Research and Development Expenses

Research and development, or R&D, expenses consist primarily of costs for milestone payments to third parties, clinical trials, contract manufacturing, personnel costs, facilities, regulatory activities, preclinical studies, and allocations of other R&D-related costs. External R&D expenses include fees paid to universities, hospitals and other entities that conduct certain R&D activities and that manufacture our product candidates for use in our clinical trials, such as fees related to patient treatment costs, clinical trial site costs, clinical research organization costs and contract manufacturing fees incurred for preclinical, clinical, manufacturing and regulatory activities associated with preparing the compounds for submissions of NDAs or similar regulatory filings to the FDA, EMA or other regulatory agencies outside the United States and Europe.

Currently, we manage our clinical trials through contract research organizations and independent medical investigators at their sites and at hospitals and expect this practice to continue. Through our clinical


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development programs, we are developing each of our product candidates in parallel for multiple disease indications. Due to the number of ongoing projects and our ability to utilize resources across several projects, we do not record or maintain information regarding the indirect operating costs incurred for our research and development programs on a program-specific basis. In addition, we believe that allocating costs on the basis of time incurred by our employees does not accurately reflect the actual costs of a project.

Under the Collaboration Agreement with Teva, we are required to spend $30 million towards development of custirsen, which will include our personnel costs for certain development activities. Teva will fund all other expenses incurred pursuant to the Clinical Development Plan. We have incurred costs of $3.5 million in 2009, $4.9 million in 2010, $3.3 million in 2011 and $9.2 million in 2012, which have been applied against our $30 million funding commitment, resulting in a remaining funding commitment of $9.1 million at September 30, 2012. We expect aggregate full-time equivalent reimbursement of between $1.5 and $2.5 million annually from 2012 to 2013, which will be applied against our funding commitment, or reimbursed to us from Teva. We currently expect that we will incur all remaining costs associated with the Clinical Development Plan by the end of the fourth quarter of 2012.

Several of our clinical trials have been supported by grant funding that was received directly by the hospitals and/or clinical investigators conducting the clinical trials, thereby allowing us to complete these clinical trials at a lower cost to us.

Additionally, several of our clinical trials are investigator-sponsored versus company-sponsored, thereby allowing us to complete these clinical trials at a lower cost to us.

Since our drug candidates are in development, we cannot estimate completion dates for development activities or when we might receive material net cash inflows from our R&D projects, if ever. We expect our R&D expenses to increase in 2012 and into the future, likely significantly, as we further expand development of custirsen, OGX-427 and our other programs. Our programs or anticipated programs may be subject to change from time to time as we evaluate our R&D priorities and available resources.

General and Administrative Expenses

General and administrative, or G&A, expenses consist primarily of salaries and related costs for our personnel in executive, business development, human . . .

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