On November 2, 2020 DURECT Corporation (Nasdaq: DRRX) reported financial results for the three months ended September 30, 2020 and provided a corporate update (Press release, DURECT, NOV 2, 2020, https://www.prnewswire.com/news-releases/durect-corporation-announces-third-quarter-2020-financial-results-and-update-of-programs-301165195.html [SID1234569723]).
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Total revenues were $2.7 million and net loss was $9.3 million for the three months ended September 30, 2020 as compared to total revenues of $10.8 million and net loss of $2.0 million for the three months ended September 30, 2019.
At September 30, 2020, cash and investments were $49.8 million, compared to cash and investments of $51.3 million at June 30, 2020 and $64.8 million at December 31, 2019. Debt at September 30, 2020 was $20.7 million, compared to $20.3 million at December 31, 2019.
"We are pleased with the progress made in our development of DUR-928 for the indications of Alcoholic Hepatitis, COVID-19 and NASH," stated James E. Brown, D.V.M, President and CEO of DURECT. "We expect dosing to begin shortly in AHFIRM, our Phase 2b clinical trial evaluating the potential life-saving capacity of DUR-928 in patients with severe Alcoholic Hepatitis. We initiated dosing in our Phase 2a trial of DUR-928 in COVID-19 patients in September and also will be presenting additional data from our Phase 1b NASH trial at The Liver Meeting Digital Experience 2020 in mid-November. We have had continuing correspondence with the FDA regarding the POSIMIR NDA and believe they are making progress with their review. And last but not least, we are excited to welcome Dr. Norman Sussman as our Chief Medical Officer."
Update on Selected Programs:
Epigenetic Regulator Program. DUR-928, the lead product candidate in the Company’s Epigenetic Regulator Program, is an endogenous, orally bioavailable, first-in-class small molecule, which may have broad applicability in acute organ injuries such as alcoholic hepatitis (AH) and coronavirus disease 2019 (COVID-19) patients with acute liver or kidney injury as well as in chronic liver diseases such as non-alcoholic steatohepatitis (NASH).
Clinical Development
Alcoholic Hepatitis (AH)
We expect to begin dosing soon in our Phase 2b study in subjects with severe acute Alcoholic Hepatitis to evaluate safety and efFIcacy of DUR-928 treatMent (AHFIRM). AHFIRM is a randomized, double-blind, placebo-controlled, international, multi-center Phase 2b study to evaluate the safety and efficacy of DUR-928 in approximately 300 patients with severe AH. The study will be comprised of three arms of approximately 100 patients each: (1) DUR-928 (30 mg); (2) DUR-928 (90 mg); and (3) Placebo plus standard of care (SOC). SOC may include the use of methylprednisolone, a corticosteroid, at the discretion of the treating physician. Patients will receive an intravenous (IV) dose of DUR-928 or placebo (sterile water) on day 1 and a second IV dose on day 4 if they are still hospitalized. The primary outcome measure will be 90-day survival rate for patients treated with DUR-928 compared to those treated with placebo plus SOC. Secondary endpoints include 28-day survival, the rate of adverse events, Lille and MELD (prognostic scores) and time in the intensive care unit. The Company is targeting 40-45 clinical trial sites in the US and Europe.
Given the high mortality rate in severe AH patients and the absence of an approved therapeutic, demonstration of a robust survival benefit in the AHFIRM trial may support an NDA filing.
During 2019, we completed a Phase 2a clinical trial of DUR-928 in patients with AH. All 19 patients treated with DUR-928 survived the 28-day follow-up period, 74% of patients (14/19) were discharged in ≤ 4 days after receiving a single dose of DUR-928, and there were no drug-related serious adverse events.
AH is an acute form of alcoholic liver disease (ALD) associated with long-term heavy intake of alcohol, and often occurs after a recent period of increased alcohol consumption. AH is typically characterized by a recent onset of jaundice and hepatic failure. According to the most recent data provided by the Agency for Healthcare Research and Quality (AHRQ), a part of the US Department of Health and Human Services (HHS), there were over 122,000 hospitalizations for patients with AH in 2017. From a recent publication analyzing the mortality and costs associated with AH, the cost per patient is estimated at over $50,000 in the first year. ALD is one of the leading causes of liver transplants in the U.S., costing over $800,000 per patient. An analysis of 77 studies published between 1971 and 2016, which included data from a total of 8,184 patients, showed the overall mortality from AH was 26% at 28 days, 29% at 90 days and 44% at 180 days after admission.
Non-Alcoholic Steatohepatitis (NASH)
In May 2020, we reported positive topline results from a Phase 1b randomized and open-label clinical study conducted in the U.S. to evaluate safety, pharmacokinetics and signals of biological activity (including clinical chemistry and biomarkers as well as liver fat content and liver stiffness by imaging) of DUR-928 in NASH patients with stage 1-3 fibrosis. A total of 65 patients completed the study. DUR-928 was orally administered daily at 50 mg (n=23), 150 mg (n=21), or 600 mg (300 mg BID (n=21)) for 4 weeks. At the end of dosing, patients were followed up for an additional 4 weeks.
Reductions from baseline (pre-treatment) levels were seen in liver enzymes, liver stiffness as measured by imaging, and serum lipids. Many of these reductions were statistically significant. The Company believes that these results , i.e., multiple important parameters moving in the same desirable direction, especially given the short treatment course of four weeks, is a promising indication of DUR-928’s potential in NASH.
DUR-928 was well tolerated at all three doses evaluated. There were no serious adverse events reported during the study. Pharmacokinetic (PK) parameters after repeat dosing were comparable to those after a single dose (from a prior study), indicating no accumulation after repeat dosing.
Additional results, including biomarker data, will be presented through a poster at The Liver Meeting Digital Experience 2020 being held November 13-16, 2020.
Non-alcoholic fatty liver disease (NAFLD) is the most common form of chronic liver disease in both children and adults. It is estimated that NAFLD affects approximately 30% to 40% of adults and 10% of children in the United States. NASH, a more severe and progressive form of NAFLD, is one of the most common chronic liver diseases worldwide, with an estimated prevalence of 3-5% globally. No drug is currently approved for NAFLD or NASH.
COVID-19
We have initiated dosing in a randomized, double-blind, placebo-controlled, multi-center Phase 2 study to evaluate the safety and efficacy of DUR-928 in hospitalized COVID-19 patients with acute liver or kidney injury.
A total of approximately 80 patients are planned to be enrolled into two study treatment groups in a 3:1 (DUR-928: placebo) ratio. Patients will receive a dose of 150 mg of DUR-928 or placebo by intravenous infusion on day 1 and day 4 in combination with standard of care therapy, which will be determined by the principal investigator (PI) at each clinical trial site. The primary efficacy endpoint is a composite of survival and being free of acute organ failure (free of mechanical ventilation, free of liver failure events and free of renal replacement therapy) at day 28. Patients will be followed for 60 days. Any drug product(s) determined by the FDA to be safe and effective for the treatment of COVID-19 while the trial is ongoing may be offered, at each PI’s discretion, to any remaining and future patients in this trial.
COVID-19 is an infectious disease caused by severe acute respiratory syndrome coronavirus (SARS-COV-2). The rapid spread of the disease has resulted in a pandemic with millions of confirmed cases and over one million deaths worldwide. While most cases result in mild symptoms, including fever, cough and shortness of breath, some rapidly progress into acute respiratory distress syndrome (ARDS), multi-organ failure, and death. Many of these patients experience severe systemic inflammation that results in acute injuries in multiple organs including the liver and/or the kidney. Organ injury may also occur in hospitalized COVID-19 patients as the result of other complications of the viral infection. In a study of 1,059 adult cases of confirmed hospitalized COVID-19, 62% of patients presented with at least one elevated liver enzyme. In another study, 36.6% of 5,449 patients admitted with COVID-19 had or developed acute kidney injury (AKI).
POSIMIR (bupivacaine solution) Post-Operative Pain Relief Depot. POSIMIR is DURECT’s investigational post-operative pain relief depot that uses the Company’s patented SABER technology and is designed to deliver bupivacaine to provide up to 3 days of pain relief after surgery.
We have continued to communicate with the FDA regarding their review of the POSIMIR NDA and believe they are making progress on their review.
Methydur Sustained Release Capsules (ORADUR-Methylphenidate). Our partner, Orient Pharma, has informed us that they launched Methydur Sustained Release Capsules commercially in Taiwan in September 2020.
Conference Call
We will host a conference call today at 4:30 p.m. Eastern Time / 1:30 p.m. Pacific Time to discuss third quarter 2020 results and provide a corporate update:
The conference call will also be available by webcast on DURECT’s homepage at www.durect.com under the "Investors" tab. If you are unable to participate during the webcast, the call will be archived on DURECT’s website under "Event Calendar" in the "Investors" section.