Joseph Belanoff
Analyst · Cantor Fitzgerald. Please go ahead
Thank you, Charlie. We are very pleased with the performance of our Cushing syndrome franchise last quarter. As we expected, patients taking Korlym work through the insurance reauthorization process, many of them must undergo at the start of each year. There care was not interrupted because we gave them Korlym at no cost. But the temporary pause and reimbursement for some patients did reduce our first quarter revenue as it has every year since Korlyms launch. Meanwhile, we continue to add prescribers and patients, growth we expect to continue. There is much left to do. There are 8,000 endocrinologists in the United States nearly every Endocrinology practice in the country has a few patients with Cushing syndrome. To reach more physicians we are increasing the size of our field sales force from 41 clinical specialists to about 55. The exact number and the pace of hiring will depend on how quickly we find candidates with the skill, experience and dedication to helping patients required to work effectively with physicians treating patients with this complex disease. We expect the additional clinical specialists to contribute significantly to our commercial business in 2020 and beyond. Korlym is shown first, in its pivotal trial and then in commercial use the cortisol modulation can greatly benefit many patients however Korlym causes off target effects that limit its use. Korlym treats Cushing syndrome by modulating cortisol activity at the glucocorticoid receptor, GR for short. A Korlym does not just modulate the effect of cortisol, it also binds to the progesterone receptor PR for short. Korlym's affinity for PR makes it in a board of fashioned. In fact, the active ingredient in Korlym is the same as in the medication call the abortion pill. Korlym's PR affinity also causes endometrial thickening and vaginal bleeding in a significant portion of the women who take the medicine regardless of their age. By a different mechanism Korlym also causes low potassium in many patients, a condition known is hypokalemia. Potassium is important for the normal function of nerve and muscle cells particularly heart muscle cells low levels of potassium can be life threatening. Hypokalemiais is manageable but requires close monitoring and often prophylactic treatment, 44% of the patients in Korlym's pivotal trial experienced hypokalemia, it is one of the leading causes of Korlym discontinuation. Our planned successor to Korlym relacorilant it does not cause these off target effects. Like Korlym, relacorilant works by modulating excess cortisol activity at GR. Unlike Korlym, relacorilant is selective because it does not bind to PR, it is not the abortion pill and does not cause endometrial thickening or vaginal bleeding. In addition unlike Korlym relacorilant is not significantly increased cortisol levels and does not cause hypokalemia. These are major medical and commercial advantages and relacorilants Phase two trial patients exhibited meaningful improvements in the trial's primary endpoints of hypertension and glucose control and in a variety of secondary endpoints including weight loss, liver function, coagulopathy, insulin resistance, cognitive function, mood and quality of life. It was well tolerated. As expected, there were no adverse events caused by PR affinity and there were no drug-induced instances of hypokalemia. We presented these results in April at the annual meeting of the American Association of Clinical Endocrinologists, you can see our poster at the Investors Past Events tab of our website. Relacorilants Phase 3 trial, which we call GRACE is underway with the planned enrollment of 130 patients at 60 sites in the United States, Canada, Europe and Israel. Each patient in the GRACE study receives relacorilants for 22 weeks. Those who exhibit prespecified improvements in hypertension or glucose metabolism enter a 12-week double-blind randomized withdrawal phase in which have continue receiving relacorilant and the rest are switched to placebo. GRACE's primary endpoints are the rate and degree of relapse during the randomized withdrawal phase of the study comparing patients continuing Korlym -- relacorilant and those randomized to placebo. I'm pleased to announce that we plan to begin a second clinical trial in patients with less severe Cushing syndrome later this year. These patients have a adrenal adenomas an a more indolent disease trajectory. We expect that this study will enroll approximately as many patients as the GRACE trial with half of the participants receiving relacorilant and the rest placebo. Many of the sites, participating in the GRACE study will participate in this trial. It is important to note that this trial is not a required part of a relacorilant development program. We expect to base Relacorilant's NDA for Cushing syndrome on the results of GRACE. That being said, this etiology of Cushing syndrome has not been studied extensively and we expect our trial's results to contribute meaningfully to its understanding and treatment. I will now turn to our oncology program. In tumors that express glucocorticoid receptors, cortisol stimulation suppresses the programmed cell death known as apoptosis. Since chemotherapy drugs kill tumors by prompting apoptosis, this effective cortisol is harmful. Many solid tumor types, including pancreatic and ovarian have high levels of glucocorticoid receptors which unfortunately correlates with lower survival rates. Our Phase I-II trial relacorilant plus nab-paclitaxel, Celgene's taxane-based drug Abraxane tested the hypothesis that adding a cortisol modulator to a chemotherapeutic regimen will turn down cortisols anti-apoptotic effect and allow chemotherapy to achieve its full potential. We presented data from this trial at this year's ASCO Conference. 7 of 25 patients with metastatic pancreatic cancer and 5 of the 11 patients with advanced ovarian cancer achieved durable disease control, meaning their tumors either shrink or cease growing for 16 weeks or longer. The duration of response, in some patients was particularly notable. Tumor shrinkage in two patients with pancreatic diseases lasted longer than 50 weeks. A patient with ovarian cancer exhibited tumor shrinkage for 65 weeks. The target lesion in another patient with ovarian cancer disappeared completely. These are striking results. All of these patients had undergone multiple prior lines of therapy including treatments with nab- paclitaxel or another taxane that any of them responded when relacorilant was added to the therapy was surprising. Our ASCO poster is available at the Investors Past Events tab of our website. Our investigators believe as do we that our Phase I-II results justify larger more definitive studies. Earlier this year, we began 180 patient placebo-controlled Phase II trial of relacorilant plus nab-paclitaxel in patients with advanced ovarian cancer. In addition, we have completed writing the protocol for a Phase III trial of relacorilant plus nab-paclitaxel in patients with metastatic pancreatic cancer and we'll seek FDA guidance regarding the fastest path to approval in that indication. Our objective is to start this trial by year-end. The results, I've described are exciting. I will quote briefly from the opinion expressed by the European Medicines Agency's Committee for Orphan Medicinal Products the comp for short. When I recommended that relacorilant be designated as an orphan drug for the treatment of pancreatic cancer. This is a direct quote relacorilant has the potential to restore tumor sensitivity to taxane therapy. This was demonstrated by non-clinical and clinical results, that is the achievement of durable partial responses or disease control in some patients, despite previously failed treatment regimens. The COMP considered that the preliminary clinical data submitted by the sponsor supported the claim of significant benefit for the purpose of an initial orphan designation. "We agree if we can confirm our Phase I-II findings and subsequent larger trials it will constitute a major advance in the treatment of these dire cancers. Cortisol modulation may treat patients with metastatic prostate cancer by a different mechanism androgens stimulate growth in tumors of the prostate, which is why androgen deprivation is the standard treatment. Investigators at the University of Chicago and Memorial Sloan Kettering have shown that when prostate tumor cells are treated with Androgen Deprivation agents such as enzalutamide Pfizer's drug Xtandi, their growth begins to be stimulated by cortisol. Our hypothesis which originates with investigators at the University of Chicago. Is it adding a cortisol modulator to androgen deprivation therapy will block this tumor escape route. Investigators at the University of Chicago are leading to controlled Phase II trials, testing this hypothesis one examining Korlym plus standing and the other relacorilant plus Xtandi. We are conducting a dose finding trial of our proprietary selective cortisol modulator exicorilant formerly CORT125281 combined with Xtandi to treat patients with castration-resistant prostate cancer, and we'll evaluate data from that trial as well as data from the trial is being led by the University of Chicago. Investigators once it is available to determine the appropriate next steps for our development program. I will conclude with a discussion of our program in metabolic disease. Pre-clinical and clinical data have shown the cortisol modulation may play a role in treating two serious widespread metabolic disorders for which there are no FDA approved treatments. Weight gain caused by antipsychotic medications and non-alcoholic steatohepatitis or NASH, let me provide some background millions of patients rely on anti-psychotic medications to treat illnesses such as schizophrenia and bipolar disorder these medications are effective, but they're side effects, including weight gain hyperglycemia and hyperlipidemia shorten the lives of patients, most of whom die from cardiovascular diseases. In April we began dosing healthy subjects in a Phase 1b trial to test whether miricorilant attenuates the weight gain caused by the commonly prescribed antipsychotic medication olanzapine. We model this trial on placebo controlled studies we conducted in which mifepristone significantly reduce the metabolic side effects of olanzapine and another antipsychotic medication risperidone. Unfortunately mifepristone, status as the abortion pill prevented us from advancing it as a treatment for common disorders. Miricorilant is a viable candidate because it is a selective cortisol modulator. Like relacorilant it has no progesterone receptor activity. In our current trial 60 healthy subjects receive olanzapine and either miricorilant or placebo for two weeks. Although the trial's primary endpoint is change in weight. We have a more fundamental goal. This is our first study of miricorilant potential Pharmacodynamics activity. Its results in animal studies were very powerful. We know from its Phase I trial that miricorilant is well tolerated. Our objective for this study is to begin to learn about its metabolic properties in people. We will have results later this year. Later this year, we will also have a double, we will also begin a double-blind, placebo-controlled Phase II trial in patients with recent antipsychotic induced weight gain. In 2020 after our program to optimize miricorilant formulation is complete, we will initiate a Phase II trial and the reversal of long-standing antipsychotic induced weight gain. Now, I'll say a few words about NASH, another serious metabolic disorder that affects millions of people in the United States. NASH is characterized by fatty liver inflammation and fibrosis. It is a precursor to cirrhosis. If a person is potent in animal models of these conditions and appears to reverse fatty liver disease in patients with Cushing syndrome. In animal models of these conditions, miricorilant is even more potent. We expect to initiate a double-blind, placebo-controlled Phase II trial, at [indiscernible] in patients with NASH next year. To recap, our Cushing syndrome business had an excellent quarter. We reaffirm our 2019 revenue guidance of $285 million to $315 million for 2019. We are significantly increasing the size of our field sales force, which should begin to contribute to our commercial results next year. Relacorilants Phase III NDA enabling GRACE trial continues to enroll patients. Separately, we will begin a placebo-controlled double-blind trial in patients with less severe Cushing syndrome later this year. We continue to make important advances in our oncology program. We presented striking data from a Phase I-II trial at ASCO this year. The data showed durable disease control and patients with metastatic ovarian and pancreatic cancer will be on what is expected for a population that have received multiple prior lines of therapy including prior use of taxane. We are actively enrolling subjects in 180 patient-controlled Phase II trial relacorilant plus Abraxane in ovarian cancer. We expect to begin a Phase III trial in patients with metastatic pancreatic cancer later this year. Our trial of exicorilant plus enzalutamide continues to generate data as the trial is being led by investigators at the University of Chicago with Korlym and relacorilant. Our metabolic program achieved an important milestone, our lead compound miricorilant is being tested for the attenuation of antipsychotic induced weight gain in healthy subjects and two Phase, two trials and antipsychotic induced weight gain will be conducted one expect it to begin later this year and another one to begin in 2020. We also plan to start a Phase II trial of miricorilant to treat patients with NASH next year. I'll stop here for questions.