Good afternoon and welcome to the AcelRx Pharmaceuticals First Quarter 2015 Financial Results Conference Call. All participants will be in listen-only mode. [Operator Instructions] After today’s presentation there will be an opportunity to ask questions. [Operator Instructions] Please note this event is being recorded. I would now like to turn the conference over to Tim Morris, Chief Financial Officer. Please go ahead.

Thank you, Laura. Good afternoon everyone and welcome to today's call. On this call I’m joined by Howie Rosen, Interim Chief Executive Officer; and Pamela Palmer, our Founder and Chief Medical Officer. During the call today, we will make forward-looking statements, including but not limited to statements related to future financial results, including AcelRx plans to seek a pathway forward towards gaining approval of Zalviso in the U.S., including meeting with outside advisors for consultation, potential additional clinical studies, additional Human Factors studies, additional data analyses, or one of the dispute resolution processes provided for by the FDA. AcelRx's belief that an additional clinical study should not be required to demonstrate the safety and efficacy of the Zalviso System beyond what has already been established in the Phase III clinical studies; anticipated resubmission of the Zalviso NDA to the FDA, including the scope of the resubmission and the timing of the resubmission and FDA review time; financial guidance and cash forecast; potential milestones and royalty payments under the Grunenthal agreement; the process and timing of submissions on the Zalviso MAA, including timing for potential approval of the MAA by the EMA. The status of the collaboration agreement with Grunenthal or any other future potential collaborations; the process and timing of anticipated future development of AcelRx's product candidates including Zalviso and ARX-04; a potential contract with the Department of Defense to receive partial development support for ARX-04 and the therapeutic and commercial potential of AcelRx's Pharmaceuticals product candidates including Zalviso and ARX-04. These forward-looking statements are based on AcelRx Pharmaceuticals' current expectations and inherently involve significant risks and uncertainties. AcelRx Pharmaceuticals' actual results and timing of events could differ materially from those anticipated in such forward-looking statements and as a result of these risks and uncertainties, which include, without limitations, risks…

Thank you very much Tim. And I’d like to thank everyone for joining us this afternoon for the first quarter call. During today’s call we’ll provide the following. A regulatory update on Zalviso in the U.S., a brief update on our progress towards Zalviso approval in Europe with our partner Grunenthal, the clinical update on ARX-04, which is currently enrolling a Phase III trial and a brief review of the first quarter financial results. So let me start with the Zalviso regulatory update. On April 21, 2015 we submitted a request to the Division of Anesthesia, Analgesia, and Addiction Products, which are also referred to as the Division of the Food and Drug Administration for a Type B meeting. This past Friday the Division notified the Company that the request for a meeting was denied. In the response the Division restated their view that a clinical study is required for the approval of Zalviso. We disagree with this response and are consulting with our regulatory, legal and clinical advisors to determine our next steps. We will be considering all options to determine a pathway forward for Zalviso including the possibility of dispute resolution through one of the FDA prescribed pathways as well as conducting additional clinical or Human Factors studies. As part of the Type B meeting, we’d intended to share with the Division the results of the bench testing and the Human Factors studies we perform to address items included in the complete response letter or CRL that they had sent us. And as we also discussed the Type A meeting, we held for the Division. We also wanted to further discuss their desire for additional clinical work. We continue to believe that an additional clinical study should not be required to demonstrate the safety and efficacy of the…

Thank you, Howie. As we mentioned last time we’ve initiated a pivotal Phase III trial for ARX-04. As a reminder, ARX-04 is a single use 30 microgram sufentanil sublingual tablet in a disposable, pre-filled, single-dose applicators that is administrated to the patient by healthcare professional. The proposed indication for this product is a treatment of moderate-to-severe acute pain in a medically supervised setting. This Phase III study SAP-301, is a multi-center double-blind placebo-controlled trial that will evaluate the efficacy and safety of ARX-04 versus placebo for the treatment of moderate-to-severe acute pain following ambulatory abdominal surgery. SAP-301 is expected to enroll up to 160 adult patients randomized 2 to 1 active to placebo to be treated for up to 48 hours. ARX-04 or placebo will be administered by site staff as requested by the patient but no more than once per hour. Enrollment is on track and pending the completion of enrollment in the study we anticipate top line results in the fourth quarter of 2015. The primary endpoint of this study is to demonstrate a statistically significant difference in the time weighted summed pain intensity difference to baseline or SPID of ARX-04 compared to placebo over a 12 hour dosing period also known as SPID-12. The study is being conducted at four sites in the United States. As you will recall we are also working with the Department of Defense or DoD on a contract to partially support our development of ARX-04. After completion of the DoD contract we plan to initiate a second Phase III clinical trial of ARX-04. This study will add to the safety database for ARX-04 and will help us understand how the application of ARX-04 treats trauma related moderate-to-severe pain in the emergency room one of the large target markets for the product. This study is therefore an open label safety study in patients who presented to the emergency room with moderate-to-severe pain due to trauma or injury. Approximately 40 patients are planned to be enrolled in this study. We anticipate the contract will be completed this quarter. The DoD continues to express interest in a potential product like ARX-04 to treat wounded soldiers in the battlefield. I will now turn the call back to Tim to discuss the financial results.

Thank you, Pam. Earlier today we reported financial results for the first quarter ended March 31, 2015. I refer you to that press release for specific details on the actual results. Net loss for the first quarter of 2015 was $10 million or $0.23 basic net loss per share, and $0.27 diluted net loss per share. This compares to a net loss of $9.6 million or $0.22 basic and diluted net loss per share for the first quarter last year. The increase in net loss and net loss per share was due primarily to higher headcount related expenses in the first quarter of 2015 as compared to the first quarter of 2014. At the end of March we implemented a cost reduction plan and reduced our workforce by approximately 36%. The associated termination and related costs are reflected as restructuring costs in the Statement of Comprehensive Loss. For the first quarter we recognized $181,000 of previously deferred revenue under the collaboration agreement with Grunenthal, as compared to $95,000 for the first quarter last year. R&D expenses for the quarter were at $6.3 million, this compared with $4.7 million for the first quarter last year. The increase was primarily due to increased medical affairs personnel and the initiation of SAP-301, a pivotal Phase III clinical study for ARX-04. G&A expenses were $4.5 million for the first quarter compared with $3.9 million for the first quarter of 2014. Again the increase was primarily due to increased commercial personnel in anticipation of the potential approval of Zalviso last year. These positions again have subsequently been eliminated as part of the cost reduction plan that we implemented in March 2015. Other income and expense includes $2.2 million in non-cash income in the first quarter of 2015 and $700,000 in non-cash expense in the first quarter last year respectively resulting from the liability accounting related to the warrants issued in connection with the PIPE financing completed in June 2012. These PIPE warrants are considered a liability for accounting purposes and they are remeasured at the end of each reporting period utilizing the Black-Scholes valuation model. As of March 31, 2015, there were approximately 500,000 PIPE warrants outstanding. At the end of March 2015, AcelRx had cash, cash equivalents and investments of $64.4 million, compared with $75.4 million at December 31, 2014. The net decrease in cash, cash equivalents and investments was $11 million for the first quarter. We will now open the call up to questions.

[Operator Instructions] And our first question will come from David Amsellem of Piper Jaffray.

Thanks, just a couple. So you had referenced potentially exploring dispute resolution with the FDA, so I tested the question on that is at what point do you build that route. Howard, may be a little more clarity on how you are thinking about it and when you apply that drug? And then secondly, what are your thoughts on the wisdom of dispute resolution in the first place given that you presumably are going to eventually file on 04 and want to presumably maintain a constructive relationship with the decision. So how are you thinking about dispute resolution from that context? Thanks.

Sure. David. Hi, this is Tim, let me take the first one and we’ll let Howie take the second one. I guess in terms of how we are going to come to the position obviously we just found out about this on Friday. So as you know the FDA has a number of pathways forward and one of them does include kind of a formal dispute resolution process, one of them does include kind of an informal pathway. I think once we have that input from all of our legal and our regulatory advisors plus a little bit of internal conversion we will decide on a path forward. At such point when we have a little bit more of a definitive plan we’ll obviously let the market now. So it’s still a little bit fresh to us, we obviously have that way all of the potential options here both probability and success and also keeping a good relationship with the agency, there might be some benefits of one route versus another, but it’s probably too early to tell. So from the wisdom of that. Howie?

Yes, it’s really a question about ARX-04 and everything is particular to the specific facts around specific products and so oftentimes these things are just around interpretation and data or miscommunications and those types of things. And so again as Tim said we’ll focus on what makes sense for Zalviso, but we are obviously keep the bigger picture in mind as well.

Thank you. End of Q&A

[Operator Instructions] And showing no further questions I would like to turn the conference back over to management for closing remarks.

Okay, thank you, Laura. So I’d like to thank everyone for attending today’s call and also we look forward to continuing to provide you with updates on our progress with Zalviso in Europe and the U.S. and the ARX-04 Phase III program. Thank you, again.

The conference is now concluded. Thank you for attending today's presentation. You may now disconnect.