Matthew W. Foehr
Analyst · Craig-Hallum
Thanks, John. There's been a significant amounts to report recently on both on our fully funded partnered programs as well as our internal un-partnered R&D programs. So I'll begin with comments on some of our partner programs and I'll start with Promacta. The global team at GSK continues to put significant effort behind the asset and they're making great progress. They're publishing key data related to the dozens of clinical trials that are running around the world and are also reporting on continued commercial momentum, as John mentioned. We are very pleased to see clinical data presented in MDS/AML as well as aplastic anemia in oral sessions at the European Hematology Association meeting in June. In MDS/AML, the data presented provided further evidence supporting Promacta development and these important indications and also noted trends toward improved overall survival. We view this as a meaningful development and look forward to future data. As John mentioned, GSK announced last week that they received a positive CHMP recommendation for Revolade, which is Promacta's name in some ex-U.S. markets. The positive recommendation was for the use and for the treatment of low platelet count in adult patients with chronic Hepatitis C where the degree of thrombocytopenia is the main factor preventing the initiation or limiting the ability to maintain optimal interferon-based therapy. We are very pleased with this news out of Europe as we view Promacta as an important medicine in this indication even as the clinical landscape evolves with new potential HepC therapies on the horizon. The CHMP recommendation was based on Promacta's safety and efficacy data, including 2 global Phase III studies of more than 1,500 HepC patients. A positive CHMP opinion is generally seen as one of the final steps before marketing authorization is granted in the EU. And typically, that process takes about 70 days from the time of a positive opinion. I'll switch gears now and talk about our partners at Pfizer, who recently presented additional clinical data for the bazedoxifene/conjugated estrogens program at The Endocrine Society's annual meeting. This asset was formerly referred to as Aprela in the U.S. and is referred to as a Duavive in Europe. The drug was highlighted at a very well-attended SERM menopause symposium at the Endo meeting where the large body of data relating to the efficacy and safety profile the drug was reviewed. Pfizer had a PDUFA date coming on October 3, so we're expecting to see regulatory action on this asset only 9 weeks from now. Our partners at Spectrum Pharmaceuticals have continued to execute on the Captisol-enabled melphalan program for stem cell conditioning after assuming the management of that pivotal trial from us in late Q1. This continues to be an exciting late stage partnered asset for us and it's clear that Captisol-enabled melphalan is in the hands of a capable and extremely dedicated partner. As mentioned in our press release today, we've received the rights back from The Medicines Company for MDCO-157, which is a Captisol-enabled IV clopidogrel. MedCo recently ran a pharmacokinetic and pharmacodynamic study of multiple doses of IV clopidogrel versus oral clopidogrel in healthy volunteers. That study generally indicated that there appear to be potential differences in the metabolism between oral and IV routes of administration for that specific active. The results changed the timing and the outlook of the program for MedCo and, as a result, it no longer fit within their pipeline and the rights have returned to Ligand. The Medicines Company has indicated to us that it is not an issue with Captisol but is specifically related to the metabolism for this particular active ingredient, which is a prodrug that goes through a multistep activation process once in the body. This is not the first time we've had the rights to an asset return to us from a partner and we are now beginning to look at what effort we may consider focusing internally on the asset and we will also assess the re-partnering landscape for it as we have with other programs in the past. In May, we announced that our partners at Rib-X Pharmaceuticals initiated the 660-patient multi-center Phase III trial of Captisol-enabled IV delafloxacin for first-line treatment of bacterial skin infections. For that trial start, we earned a $0.5 million milestone payment in Q2. The FDA has designated this product as a qualified infectious disease product, enabling our partners at Rib-X to benefit from a number of incentives including an additional 5 years to market exclusivity, priority review and eligibility for fast-track status. I'll now touch on 3 different programs that we have partnered with Merck. First, we mentioned in our release today some more specifics relating to the Captisol license and supply relationship relating to Merck's IV program for posaconazole known by the brand name NOXAFIL. Posaconazole is currently only available in an oral suspension and Captisol has enabled the development of an IV form of this established drug. We've been very pleased with Merck's progress on this and are happy that we can now provide the investors with a little more color on the active ingredient and the therapy area for this previously partnered Captisol program. The second Merck program is Dinaciclib. Following an internal assessment of the program, Merck's team very recently made the strategic decision to discontinue evaluation of the drug in patients with chronic lymphocytic leukemia or CLL. And the last Merck partnership I'd like to mention is BACE. On our website, we just posted some summary slides related to the BACE program, which is called MK-8931. It's in development for mild to moderate Alzheimer's disease. And with some of Merck's recent updates from presentations on the program, we thought that a simple consolidation of some of the publicly available information on this partnered asset might be useful to Ligand investors and we posted the slides to the Investors Section of ligand.com. Just as a bit of history, this is a partner program that we obtained through the acquisition of Pharmacopeia in 2008, and for those that may not be following MK-8931, it is the first BACE inhibitor that has been demonstrated to lower beta amyloid levels in cerebrospinal fluid of patients with Alzheimer's. Merck presented these findings from a clinical study in patients with mild to moderate Alzheimer's at a conference about 2 weeks ago. And importantly, Merck's got the leading position in the BACE inhibition field. Merck's Phase II/III trial, the EPIC study, is ongoing now in patients with mild to moderate Alzheimer's, and Merck has called 8931 a potentially transformative candidate in their pipeline, and earlier this week referred to it as a candidate that has "the potential to alter the course of medicine." We agree with them and we're very excited about this as well given that Ligand is entitled to royalties on the program. Alzheimer's is obviously a huge global market by any measure with major unmet medical needs, and it's great to have a partner like Merck putting such significant resource behind this high-profile program. They said that they expect an interim safety analysis from EPIC by the end of this year. So that's within 5 months from now. And while our partners continue to invest significantly to advance our partner programs, we continue here at Ligand to make very good progress on our internal currently un-partnered programs. As we announced last week, the FDA has granted orphan designation to our Captisol-enabled topiramate program for the treatment of partial onset or primary generalized tonic-clonic seizures and hospitalized epilepsy patients who are unable to take oral topiramate. This is an important step in a value-creating event for the program. I want to recognize the team that was involved in working with the FDA on this as it's a great outcome for the project. As a reminder, this program was also the subject of 2 clinical publications that were published simultaneously about 12 weeks ago in the journal Epilepsia. Our goal here is to find a committed partner to further advance the clinical development of Captisol-enabled topiramate and then add it to our portfolio of fully funded programs. I'd also like to make mention of our diabetes asset LGD-6971 (sic) [LGD-6972], which is our potent orally viable available small molecule glucagon receptor antagonist for the treatment of Type II diabetes. Glucagon receptor antagonist are a clinically validated new class of molecules for diabetes and our team knows the chemistry and biology in this space quite well. We feel we have an improved next-generation molecule compared to what's currently in development. And in June at the ADA meeting, we also presented pre-clinical data demonstrating potential efficacy and applicability in Type I diabetes. Lilly also has a program in the glucagon space and helped to ripen the landscape with clinical data that was also presented at the recent ADA meeting. Our IND for 6972 is coming together very nicely. It is on track as we previously stated to be submitted this year. We've completed the needed IND enabling studies, have manufactured clinical material and expect to submit our electronic IND shortly. We see 6972 as one of our most promising un-partnered assets. And with that, I'll turn the call over to John Sharp who will review the financials.