Mitchell Steiner
Analyst · H.C. Wainwright
Good morning. With the meeting this morning's call are Dr. Gary Barnette, Chief Scientific Officer; Michele Greco, the CFO and CAO. Michael Purvis, EVP, General Counsel and Corporate Strategy; and Sam Fisch, Executive Director of Investor Relations and Corporate Communications. Thank you all for joining our call.
Veru Inc. is a late-stage clinical -- late clinical stage biopharmaceutical company focused on developing novel medicines for the treatment of breast cancer and for SARS-CoV-2 and other viral acute respiratory distressed syndrome ARDS-related diseases. Our drug development program includes enobosarm, a Selective Androgen Receptor Agonist for the management of advanced breast cancer and sabizabulin, a Microtubule Disruptor for the treatment of hospitalized COVID-19 and other viral-related ARDS. The company also has an FDA approved product, commercial product, the FC2 Female Condom, internal condom for dual protection against unplanned pregnancy and sexually transmitted infections. The revenue from the sexual health program is being used to partially fund the clinical development of our late-stage therapeutic candidates, which aim to address multi-billion dollar premium market opportunities.
This morning, we will provide an update on our prioritization strategy, the progress of the breast cancer and viral ARDS drug pipeline as well as the commercialization of our FC2 product. We will also provide financial highlights for our Second Quarter Fiscal Year 2023. This past quarter, we implemented a prioritization strategy to focus our drug development efforts on those drug candidates, which we believe have the best opportunity to lead to long-term success and shareholder value creation and conserve cash, including a reduction in personnel and certain other measures to reduce costs further.
The refocused research and development strategy includes the following: plans for our ongoing Phase IIb/III study of enobosarm and abemaciclib combination in second-line metastatic setting for AR+ ER+ HER2- metastatic breast cancer. With the company's clinical trial collaboration partner, Eli Lilly Company supplying abemaciclib; two, a planned Phase III study of enobosarm in bone-only nonmeasurable ER+ HER2- metastatic breast cancer; three, plans for continued development sabizabulin in a Phase III confirmatory COVID-19 study in hospitalized moderate to severe COVID-19 patients at high risk for ARDS; and four, a planned Phase III clinical study of sabizabulin in hospitalized influenza patients at high risk for ARDS.
In addition, the company announced that Veru is reserving sabizabulin for clinical development only in infectious disease indications. And accordingly, has terminated the Phase III VERACITY trial with sabizabulin in prostate cancer. Further, Phase II development VERU-100 asset will be pause with efforts to find a potential suitable development partner to share the cost of such future development. We also sought to sell our ENTADFI asset, which was successful and allowed us to generate additional non-dilutive cash.
Company's oncology drug pipeline has 2 clinical development programs for enobosarm, an oral selective androgen receptor agonist for the treatment of advanced metastatic breast cancer. Enobosarm is an oral first-in-class new chemical entity, selective androgen receptor agonist that activates the androgen receptor in AR+ ER+ HER2-metastatic breast cancer, which results in tumor suppressor activity without unwanted masculinizing side effects and changes in immaculate.
Enobosarm has extensive non-clinical and clinical experience, having been evaluated in 25 separate clinical studies in approximately 1,450 subjects dosed, including 3 Phase II clinical studies in advanced breast cancer involving more than 250 patients. In the 2 completed Phase II clinical studies conducted in women with AR+ ER+ HER2-metastatic breast cancer, enobosarm demonstrates significant antitumor efficacy in heavily pretreated cohorts that failed estrogen blocking agents, chemotherapy and/or CDK4/6 inhibitors and was well tolerated with a favorable safety profile.
In preclinical studies, metastatic breast cancer tissue samples taken from patients who have metastatic breast cancer that has become resistant to CDK4/6 inhibitors in estrogen blocking agents were growing the mice. In these mice, treatment with enobosarm in combination with a CDK4/6 inhibitor suppressed the growth of human metastatic breast cancer greater than either drug was able to do alone. Interestingly, the CDK4/6 inhibitor treatment caused the metastatic breast cancer tissue to make higher amounts of the androgen receptor, which may explain the observed synergy of combining a CDK4/6 inhibitor with enobosarm, which is selective AR agonist.
The first clinical development study is a Phase IIb/III clinical study called ENABLAR-2, which is a enobosarm plus abemaciclib combination treatment with second-line AR+ ER+ HER2-metastatic breast cancer. On March 30, 2023, the company met with the FDA to gain further regulatory clarity for the ongoing Phase IIb/III clinical trial design and program. The Phase IIb/III study has been amended to accommodate the FDA's latest recommendations to support a potential registration. In the first stage of the trial, the dose of the enobosarm and the abemaciclib combination is being optimized and the efficacy and safety of the combination therapies being assessed in 3 arms of 40 patients each, the abemaciclib plus enobosarm 9 milligram combination therapy, abemaciclib plus enobosarm 1 milligram combination therapy and an estrogen blocking agent as the control arm.
The primary endpoint for the Stage I of the study is an objective response rate or ORR, which measures objective tumor responses as partial or complete. ORR is an endpoint that the FDA recognizes as an appropriate surrogate endpoint for clinical benefit for a possible accelerated approval, which is consistent with the new FDA guidance issued on March 24, 2023, entitled clinical trial considerations to support accelerated approval of oncology therapeutics. In Stage 2 of the Phase IIb/III study, we plan to enroll approximately 210 subjects in a multi-center, open-label, randomized, one-to-one active control clinical study to evaluate the efficacy and safety of enobosarm plus abemaciclib combination therapy versus an alternative estrogen blocking agent, which is either a selective androgen receptor degrader or an aromatase inhibitor in subjects with AR+ ER+ HER2- metastatic breast cancer, who have failed a CDK4/6 inhibitor plus an estrogen blocking agent, so basically first-line.
The primary endpoint is progression-free survival, which is used to confirm the ORR findings in Stage 1. In January of 2022, Veru entered into a clinical trial collaboration supply agreement through which Eli Lilly supplies abemaciclib, an FDA-approved CDK4/6 inhibitor for the ENABLAR-2 study. As you can see, the regulatory strategy and the clinical design for the Phase IIb/III ENABLAR-2 clinical study could yield an accelerated approval from Stage 1 and the full approval from Stage 2 for the second-line of abemaciclib, enobosarm combination treatment of AR+ ER+ HER2- metastatic breast cancer. We anticipate having clinical data for the Phase IIb/III ENABLAR-2 study in 2024.
The second clinical study plans to evaluate enobosarm monotherapy for the treatment of bone-only nonmeasurable ER+HER2- metastatic breast cancer. Bone is the most frequent site of breast cancer metastases with bone metastases noted in 60% to 80% of metastatic breast cancers, up to 51% of patients have bone-only nonmeasurable breast cancer metastases, and they have very limited therapeutic options. Enobosarm inhibits breast cancer growth and builds and heels bone by increasing both cortical and trabecular bone.
Further, enobosarm increased its muscle mass and improve physical function, both the beneficial bone and muscle effects may reduce the skeletal-related events caused by bone metastases. Accordingly, enobosarm could be a potential therapeutic option for women with bone-only nonmeasurable metastatic breast cancer. We plan to meet with the FDA to discuss the Phase IIb/III clinical development program to evaluate enobosarm monotherapy in bone-only nonmeasurable metastatic breast cancer.
We turn our attention now to the viral ARDS infectious disease program, ARDS is a form of noncardiogenic pulmonary edema with diffuse alveolar damage associated with systemic inflammatory conditions. Viruses can cause up to 1/3 of the community-acquired pneumonia and viruses can trigger the immune system to release an overwhelming amount of inflammatory proteins known as the cytokine storm. The cytokine storm causes tissue damage in the lungs that leads to ARDS. Patients who develop ARDS have a high mortality rate. Virus-induced ARDS remains a significant unmet medical need with limited treatment options. Common viral infections that cause ARDS include COVID-19, influenza and Respiratory Syncytial Virus, also known as RSV and other virus infections that may also lead to ARDS in depth, posing a global public health risk to society includes smallpox and Ebola virus.
A single operating involving any one of these viruses would be an immediate global emergency with limited existing options available for treatment. As ARDS results from the over-exaggerated immune inflammatory response by the patient to a virus infection rather than direct injury from the virus infection itself, an antiviral agent alone may not be effective. Sabizabulin has host targeted antiviral and a broad spectrum anti-inflammatory agent has the potential to address the virus infection and the inflammation caused by the cytokine storm that causes ARDS, multi-organ failure and death.
Company is developing sabizabulin for the treatment of hospitalized moderate to severe COVID-19 patients at high risk for ARDS and death. ARDS remains the most frequent serious complication of severe COVID-19 infection. As we reported up to 33% of hospitalized patients with COVID-19 have ARDS, and 75% to 92% of patients admitted to the intensive care unit with COVID-19 have ARDS. The mortality rate of COVID-19 associated ARDS is 45%. And among patients who die from COVID-19, there's a 90% incidence of ARDS. In the current endemic phase, COVID-19 infection is estimated to be the fourth leading cause of death in the United States. COVID-19 is not going away. It has transitioned to a new disease that will remain with us like influenza and RSV.
The endemic phase for COVID-19 remains deadly with the latest data from the CDC reporting, 1,100 deaths this past week and an average of 4,500 hospitalizations a day, the number of COVID-19 cases is expected to be seasonal, with a rise in mid-summer when people gather in doors to get out of the heat and in the winter when they gather to get out of the cold. As the COVID-19 endemic continues, there also needs to remain -- we need to remain vigilant and focused on preparedness for the next wave of infections involving new potentially more dangerous mutated virus strains. In fact, a new mutated strain, if Omicron has emerged called Arcturus, it's also known as XBB.1.16 and it appears to have high infectivity in pathogenicity. COVID-19 will be a problem for the foreseeable future and there's a great need for effective therapies, especially for these hospitalized patients with moderate to severe COVID-19 infection at high risk for ARDS.
The company has completed a positive Phase II and a positive Phase III COVID-19 clinical trials evaluating sabizabulin. The Phase III clinical study was a double-blind randomized placebo-controlled study in 204 hospitalized moderate to severe COVID-19 patients in high risk for ARDS. The primary endpoint was the proportion of patients have died by day 60. And based on a planned interim analysis of the first 150 patients randomized, the independent data monitoring committee unanimously recommended that the study be stopped for clear evidence of clinical efficacy, and they identified no safety concerns. In the interim analysis, treatment of sabizabulin 9 milligram once a day resulted in a clinically meaningful and statistically significant 55.2% relative reduction in deaths compared to placebo.
On May 10, 2022, the company had a pre-emergency use authorization so that's EUA meeting with the FDA to discuss the submission of an EUA application for sabizabulin COVID-19 treatment. On June 7, 2022, the company submitted a request for FDA emergence use authorization for sabizabulin. On July 6, 2022, the company announced publication of the interim analysis, interim efficacy and the full safety clinical results from the Phase III COVID-19 study of sabizabulin in The New England Journal of Medicine Evidence. February 28, 2023, the FDA notified the company that was -- that had declined to grant at that time, the company's request for emergency use authorization for sabizabulin to treat hospitalized moderate to severe COVID-19 patients. And in communicating its decision, the FDA stated that despite the FDA declined to issue an EUA for sabizabulin at this time, the FDA remains committed to working with the company in development of sabizabulin.
Separately, on February 16, 2023, the FDA also provided comments on a confirmatory Phase III study protocol submitted by the company that could support a new EUA request to the FDA. In regard to the study design, the FDA stated that strong consideration should be given to the appropriate time frames for interim analysis, so that should "strong efficacy signal again be observed, the trial could be stopped in an efficient time frame". On April 27, 2023, the company met with the FDA and reached agreement on the design of the Phase III confirmatory COVID-19 clinical trial and the path forward to submit a new EUA application and/or NDA. The FDA agreed to a confirmatory Phase III randomized, one-to-one, multi-center global efficacy and safety study of sabizabulin 9 milligrams oral daily dose plus standard of care treatment versus placebo plus standard of care treatment and 408 hospitalized adult patients with moderate to severe SARS-CoV-2 infection with high risk for ARDS.
The patient population for sabizabulin will be expanded to include all hospitalized moderate to severe COVID-19 patients, to WHO-4, passive, low flow oxygen, WHO-5 forced, high flow oxygen, or WHO-6 mechanical ventilation, and there's no requirement to have a co-morbidity. The primary efficacy endpoint will be all-cause mortality at day 60. Secondary endpoints include days in the hospital, days in the ICU, days in mechanical ventilation and a proportion of patients alive without respiratory failure. And an exploratory endpoint will be the presence of long COVID-19 symptoms at day 180.
In order to get a potentially efficacious drug to patients in an efficient time frame, there are 2 planned interim efficacy analyses that will be conducted. As requested by FDA, the first planned interim analysis will occur when 204 patients that 50% of the population have completed day 60 primary efficacy endpoint and the second planned interim analysis is expected to occur when 290 patients, which is 71% have completed the day 60 primary efficacy endpoint, which incidentally is the same time frame with a similar amount of data as when the interim analysis was conducted for the first Phase III study. If either of the efficacy analysis meet statistical significance criteria, the trial could be stopped for efficacy.
Should the pre-specified primary efficacy endpoint analysis demonstrate a statistically significant effect on all-cause mortality favoring sabizabulin, the company may consider a new request for EUA and/or submission of an NDA "as the company would potentially have 2 adequate and well-controlled trials for review". As the program has fast track designation, enrolling NDA submission is a possibility for sabizabulin. The Phase III confirmatory COVID-19 clinical trial is expected to begin enrollment in the second half of 2023, and the first planned interim efficacy analysis is anticipated to be conducted in 2024.
Now our justification for pursuing a Phase III confirmatory trial in hospitalized moderate to severe COVID-19 patients and high risk for ARDS is as follows. First of all, COVID is here to stay. It's a large market size. It's the fourth leading cause of death. There's lack of effective treatment options and a high mortality rate in COVID-19 patients, who progress to ARDS. Sabizabulin has a unique mechanism of action as a host targeted antiviral and a broad anti-inflammatory agent and its viral mutant strain agnostic. As requested by the FDA, the host targeted antiviral activity sabizabulin has been reconfirmed with an in vitro cell study done at the University of Rochester.
Sabizabulin has demonstrated efficacy and safety in the previous Phase II and Phase III clinical studies, we have regulatory clarity, the Phase III COVID-19 confirmatory study with 2 potential interim analyses to assess efficacy of sabizabulin earlier. The company may request a new EUA and/or an NDA with this additional data from the Phase III confirmatory COVID-19 study. And interestingly, on the Section 564 the Federal Food, Drug and Cosmetic Act, FDA may continue to issue EUAs and EUA drugs may be available after the National Public Health Emergency ends today.
Clinical evaluation of other drug candidates by competitors had marginal no activity. Thus, there will be less competition for hospitalized COVID-19 patients to enroll into clinical trials, having a positive first Phase III COVID-19 study with sabizabulin treatment, demonstrating a mortality benefit published in New England Journal of Medicine Evidence should also help with patient recruitment into clinical trials. And compared to the first Phase III clinical study, we plan to conduct a confirmatory Phase III clinical study in a greater number of clinical sites with approximately 100 sites compared to 50 clinical sites for the previous Phase III study.
Now as it relates to the current ex-U.S. regulatory status, the company believes that it is most likely that all the ex-U.S. regulatory authorities, like the FDA, will require some level of new additional clinical data, including from the confirmatory Phase III study before granting emergency conditional or other similar authorizations of sabizabulin for COVID-19. In April, we submitted a request to the FDA CDER -- [ SDER ] to reevaluate the FDA's declination of our EUA for sabizabulin to the FDA's formal dispute resolution process often referred to as the FDA dispute resolution or the FDR process. We will provide more details on the content of our FDR application when we have an FDA response on the next steps.
But for now, we can say that our main argument for seeking the reevaluation is that we believe the FDA applied an incorrect standard of review of our EUA, essentially holding our data to the proven safe and effective standard of a new drug application rather than the proper standard under an EUA application whether sabizabulin's potential benefits outweighs potential risk. And we also believe that this inappropriate standard affected much of the November 2022 PADAC Advisory Committee meeting. Also, we have contrasted the FDA's higher level of scrutiny towards our sabizabulin EUA with other EUAs that have been granted, including the recent EUA granted for prohibit for certain late-stage COVID-19 patients.
We're now awaiting the FDA's decision on whether to accept our request to the FDR process, we will determine our next step based -- at that time based on the FDA's response, but we will consider all options. We hope to hear this month, but because we're dealing with an EUA and not proceeding under a PDUFA statute like we would if we had filed an NDA, the FDA's time lines are not definite. Our FDR application is a matter of high importance of Veru and we will update you when the time is appropriate.
Now in order to position sabizabulin as a drug to be used broadly for the treatment of viral ARDS, in other words, COVID assorted the hook into ARDS. The company also plans to expand the clinical development of sabizabulin for the treatment of hospitalized influenza patients at high risk for ARDS and death. On April 4, 2023, the company announced positive results of a preclinical study of sabizabulin, demonstrating robust anti-inflammatory activity with improved outcomes in an H1N1 influenza induced pulmonary infection mouse ARDS model, H1N1 is the old Spanish flu and now swine flu, and this was conducted by a team of researchers at LabCorp, early development laboratories in the United Kingdom.
Sabizabulin treatment resulted in a statistically significant decrease in the total number of inflammatory cells and a reduction in key cytokines and chemokines in lung fluid. Clinically, sabizabulin treatment resulted in a reduction in severity of lung inflammation by histopathology and it was a dose-dependent improvement in lung function. Oral administration of the 2 milligram per kilogram sabizabulin resulted in a reduction of clinical signs and body weight loss associated with H1N1 infection. Company expects to submit the full data set for presentation in the future scientific meetings and peer review publications. These preclinical data suggests that sabizabulin has a potential for treatment for hospitalized influenza patients in high risk for ARDS and death.
The pathogenesis and mortality rates for hospitalized influenza patients who develop ARDS are similar to COVID-19 associated ARDS, representing a high unmet need and very limited treatment options. According to the CDC, this is important. Influenza burden estimates in the United States who up to 630 hospitalizations and 55,000 deaths in just the last 6 months. Accordingly, Veru is planning a double-blind, randomized, placebo-controlled Phase III clinical trial evaluating sabizabulin in hospitalized adult influenza patients at high risk for ARDS. Moreover, the company is planning to expand the development of sabizabulin for smallpox and Ebola viruses under the Animal Rules FDA regulatory pathway.
So on April 11, 2023, the company announced positive results from a preclinical in vitro study evaluating the effects of sabizabulin against the prototypical poxvirus called the vaccinia virus, which demonstrates sabizabulin prevented both the release of the poxvirus from an infected cells and the spread of the poxvirus to healthy cells. And this was conducted by a team of research led by Dr. Brian Ward, who is Associate Professor of Microbiology and Immunology, University of Rochester School of Medicine and Dentistry in New York. The company expects to submit the full data set for presentation at future scientific meetings and peer review publications.
Based on the clinical data -- preclinical data, the company plans to expand sabizabulin program to include other serious virus infections that pose a global public health threat to society. Sabizabulin as a host targeted antiviral and broad anti-inflammatory agent may be useful as a novel treatment not only against small pox and other poxviruses, but it may also reduce the hyper reactive immune response triggered by poxvirus that's responsible to severe pneumonia, ARDS, multi-organ failure and death.
The company plans to have a pre-IND meetings with the FDA to discuss the Animal Rule of regulatory requirements for assessing the efficacy of sabizabulin to smallpox virus as well as Ebola virus. Clinical human efficacy trials of drugs for preventing or treating smallpox and Ebola viruses are not feasible and challenge studies in healthy subjects are unethical. Therefore, drugs for these indications are generally developed and approved under a regulatory pathway commonly referred to as the Animal Rule. FDA may grant marketing approval based on adequate and well-controlled animal efficacy studies, when the results of those studies established if the drug is reasonably likely to produce clinical benefit in humans.
Now as for our commercial business, the company's sexual health program consists of FC2 and FDA-approved commercial product to dual protection against unplanned pregnancy and sexually transmitted infections. Company sells FC2 both in the commercial sector and in the public health sector, both in the U.S. and globally. In the U.S., FC2 is available by prescription through multiple telemedicine and internet pharmacy channels as well as retail pharmacies. The company has launched its own dedicated direct-to-patient telemedicine pharmacy services portal platform to continue to drive sales growth. FC2 is also available to public health sector entities such as State Departments of Health and 501(c)(3) organizations. In the global public health sector, the company markets FC2 to entities, including ministries of health, government health agencies, U.N. agencies and non-profit organizations and commercial partners.
The company had another FDA-approved product ENTADFI, which is finasteride and tadalafil capsules for oral use as a new treatment for benign prostatic hyperplasia that was approved by the FDA in December 2021. On April 19, 2023, the company entered into an asset purchase agreement with Blue Water Biotech. The purchase price for the transaction was $20 million plus $80 million of potential sales milestones based on net revenues of ENTADFI after closing.
I will now turn the call over to Michele Greco, the CFO and CAO, to discuss the financial highlights. Michele?