Frank Bedu-Addo
Analyst · H.C. Wainwright
Thank you, Deanne, and thank you all for joining us this morning. During the third quarter, the PDS Biotech management team has advanced numerous key initiatives, supporting continued development of our Versamune platform-based products. We continue to progress our oncology and infectious disease programs, despite the challenges posed by the COVID-19 pandemic. On our second quarter call, we discussed several key objectives that we were seeking to accomplish by the end of 2020. These included initiation of 2 PDS0101 Phase II clinical trials; VERSATILE-002, in which PDS Biotech's lead immunotherapy, PDS0101, is combined with Merck's blockbuster cancer immunotherapy, KEYTRUDA; and secondly, another PDS0101 study, led by Dr. Ann Klopp at the MD Anderson Cancer Center. We also projected continued progression of our infectious disease programs, specifically in COVID-19 and universal flu.
A quick summary of our progress since our last quarterly report includes 6 key topics: First, the recently announced initiations of the second and third Phase II clinical trials of PDS0101; the VERSATILE-002 trial in first-line recurrent or metastatic HPV16-positive head and neck cancers; and also the MD Anderson-led trial, evaluating PDS0101 in combination with standard of care, chemo radiation in locally advanced cervical cancer.
Second, the NCI-led Phase II trial, which is the first and furthest progressed Phase II trial, is evaluating a triple combination of PDS0101 with 2 of EMD Serono's cutting-edge clinical stage immunotherapies in advanced HPV-associated cancers. In this trial, the safety benchmark has been successfully achieved, and recruitment of the first 8 patients also completed. The results from the first 8 patients will determine the initial efficacy assessment.
Third, progression of preclinical studies by PDS Biotech and the National Cancer Institute for our pipeline products, PDS0103. The PDS0103 immunotherapy combines the utility of the Versamune platform with novel and proprietary highly immunogenic peptides derived from the cancer-associated protein known as Mucin 1, or MUC1. MUC1 is highly expressed in several types of cancer and has been shown to be associated with drug resistance and poor disease prognosis in breast, colorectal, lung and ovarian cancers for which PDS0103 is being developed.
Fourth, this past Friday, November 6, Farmacore and the Brazilian regulatory agency, ANVISA, agreed on IND requirements to initiate clinical trials of PDS0203 in Brazil in collaboration with PDS Biotech and this is the COVID-19 vaccine.
Fifth, preclinical development of PDS Biotech universal flu vaccine, PDS0202, was initiated.
And finally, the successful raise of approximately $19 million via public offering, which we closed in August, in which we expect to provide approximately 2 years of working capital from that point.
So I will start with our oncology pipeline. I would like to provide a bit more detail about recent advancements in our oncology pipeline. As of today, there are 3 ongoing Phase II trials of PDS0101, all of which have been developed through partnerships with well-renowned leaders in the oncology field, including Merck; the National Cancer Institute, or NCI; and the University of Texas; MD Anderson Cancer Center. The National Cancer Institute and MD Anderson trials are investigator initiated. As a reminder, PDS Biotech retains 100% ownership of PDS0101 and all other Versamune-based compounds. We have taken advantage of the Versamune platform's unique combination of safety and potency as demonstrated in our Phase I trial to pursue our strategy of combining PDS0101 with standard of care in 2 of the 3 ongoing Phase II trials to deliver higher-quality therapeutic options and outcomes to cancer patients. It is noteworthy that the VERSATILE-002 trial, 1 of the 2 combination studies with standard of care, is addressing first-line treatment of recurrent or metastatic disease. The third PDS0101 combination trial, the National Cancer Institute-led triple combination study, is based on the NCI's independent demonstration and publication of powerful anticancer effects in preclinical studies. If this preclinical data is successfully confirmed in the ongoing Phase II trial, this triple combination could form the basis of a unique platform, providing improved cancer treatments across multiple cancers.
VERSATILE-002. On Monday, November 9, we announced the initiation of our VERSATILE-002 clinical trial. As a reminder, VERSATILE-002 is a multicenter, open-label, single-arm, non-randomized trial of approximately 100 patients. The study is evaluating the combination of our Versamune-based PDS0101 with the anti-PD-1 checkpoint inhibitor, pembrolizumab, also known as KEYTRUDA, for first-line treatment of recurrent or metastatic head and neck cancer. Our partner, Merck, will be providing drug, and PDS Biotech is fully responsible for the day-to-day management of the study. We have previously delayed the initiation of VERSATILE-002 due to the impact of the COVID-19 pandemic on clinical trial operations, and after careful consideration, in collaboration with Merck and the chosen clinical sites, we determined that it was safe to proceed with the trial. We believe that the combination of PDS0101 and KEYTRUDA as the first-line therapy for recurrent or metastatic head and neck cancer has tremendous potential to provide significantly improved clinical benefits to patients compared to treatment with KEYTRUDA alone. This means that patients whose cancer has returned or spread following initial treatment will be able to avoid chemotherapy and take this combination of 2 immunotherapy drugs, an approach that may be very appealing to patients. We are hopeful that enrolling patients with more functional immune systems that have not been compromised by extensive chemotherapy may allow for improved efficacy of the combination.
Now moving on to our investigator-initiated trials. In addition to VERSATILE-002, we also have 2 ongoing investigator-initiated Phase II trials. The furthest progress of these 2 PDS0101 trial is a National Cancer Institute-led Phase II trial, evaluating a novel triple combination of PDS0101 with 2 other clinical stage immunotherapies: M7824, a first-in-class bifunctional checkpoint inhibitor; and NHS-IL12, an antibody conjugated cytokine designed to facilitate entry of the cytokine IL-12 into tumors to enhance local T-cell responses. This novel combination is being studied in patients with several types of advanced HPV-associated cancers. Any patient with an advanced HPV-associated cancer, including anal, cervical, head and neck, penile or vaginal, vulvar, squamous cell rectal, lung and esophageal cancers, who have failed prior first-line treatment is eligible to enroll in this trial. On October 26, we announced the initiation of an MD Anderson-led Phase II trial of PDS0101 in combination with standard of care chemo radiotherapy, or CRT, for treatment of locally advanced cervical cancer. This study will investigate the safety and preliminary efficacy outcomes of this combination. Dr. Wood will provide additional details about our ongoing clinical trials shortly. Our clinical development strategy of combining PDS0101 with standard of care treatment is designed to mitigate risk in our proof-of-concept Phase II trial. It is also designed to demonstrate the potential for significantly enhanced clinical benefit to patients over the current standard of care without compounding toxicity. If we do achieve this goal, we believe that we will have a clear path towards commercialization of PDS0101. After initial commercial approval, our strategy of combining PDS0101 with standard of care also positions us for rapid market penetration and expansion. As some of you may already know, the HPV cancer market is very large and expected to remain robust for the next several decades, despite the use of preventive HPV vaccines first introduced in 2006. There are currently about 43,000 new incidences of these cancers every year in the United States alone. HPV-associated head and neck cancer has been described as a silent epidemic due to the rapidly increasing incidence of this cancer. The anal cancer incidents has also been steadily increasing. For both investigator-initiated trials combined, our financial responsibility is limited to approximately $1 million, plus an obligation to supply PDS0101.
Now moving on to our pipeline and PDS0103. In April, we announced the expansion of our Cooperative Research and Development Agreements, or CRADA, with the National Cancer Institute to include studies of PDS0103. PDS0103 combines Versamune with novel proprietary peptides derived from the cancer-associated protein known as MUC1. These novel proprietary and highly immunogenic peptides were developed by the Laboratory of Tumor Immunology and Biology of the National Cancer Institute. MUC1 is expressed in a wide range of tumor types, including 4 cancers of interest to PDS Biotech: breast, colorectal, lung and ovarian cancers. Expression of MUC1 is often associated with poor disease prognosis due in part to drug resistance. In preclinical studies and similar to PDS0101, PDS0103 demonstrated the ability to generate powerful MUC1-specific CD8-killer T-cells. Our hope is that in humans, we will see a similar result, allowing the immune system to better recognize the MUC1 proteins expressed by malignant cells and attack and kill MUC1-expressing tumors. We are pleased to announce that PDS0103 formulation work is complete. For the final stage of preclinical development, the National Cancer Institute will be initiating preclinical studies of PDS0103 in combination with other immunotherapeutic agents ahead of a planned human clinical study. We anticipate that the preclinical studies will be completed during the first half of 2021.
Turning now to our infectious disease pipeline. We announced on July 14 that PDS Biotech's collaborator has been granted an NIAID Award to develop a Versamune-based universal influenza vaccine. Preclinical development of this program has been initiated, and its goal is to develop a novel vaccine that will promote the induction of both T-cells and antibodies and be effective in protecting the population against multiple strains of the flu virus. Earlier this week, we announced an update to our COVID-19 vaccine development program in partnership with Farmacore. Based on promising preclinical results from the PDS0203 program and in agreement with our partner Farmacore, we have chosen to streamline our COVID-19 vaccine pipeline by advancing PDS0203 in Brazil. The PDS0203 program will replace PDS0204, the previous Farmacore product as we prepare for a human clinical study. To that end, as we announced on November 10, Farmacore met with ANVISA, Brazil's drug regulatory agency and FDA counterpart last Friday, November 6, to review the PDS0203 preclinical results. ANVISA and Farmacore agreed on the path forward for official submission of a final data package and the Phase I/II human clinical trial protocol. Farmacore is in discussions with specific agencies of the government to extend the preclinical funding to cover the upcoming human clinical trial anticipated to begin in Brazil during the first half of 2021. Please note that this is a developing situation, and we will provide more details as they become available.
Based on emerging COVID-19 data from several countries, it is clear that T-cell responses as well as long-term durability of the immune response are paramount. As a result, we are conducting additional longer-term preclinical studies of PDS0203. While these studies are not critical for initially advancing this program into the clinic, they are important to help us attain a more complete understanding of the potential of this vaccine to provide robust, long-term protection against COVID-19. The full preclinical data set, including the durability of T-cell and antibody immune responses, will be submitted for peer review upon completion. As I have said in the past, our goal with the COVID-19 vaccine program is not to race to commercialization, but rather to design and develop a vaccine that presents the critical characteristics necessary to provide optimal long-term protection and also be globally successful. This means that the vaccine must induce antibody responses and the full breadth of immune responses, including virus-specific memory, CD4 helper T-cell and CD8-killer T-cells. For commercial success, the vaccine should also be safe, simple, rapidly scalable, capable of production at commercial scale and demonstrate long-term stability. PDS0203 is being developed to exhibit each of these qualities. We will keep informed as development progresses.
Moving on to our financial position. As a reminder, in August, we completed a common stock offering, which raised approximately $19 million, and our cash balance as of September 30 is just under $34 million. Our ongoing strategy has been to partner with world-class institutions to strengthen our scientific knowledge and advance our pipeline while conserving our capital resources. As a result, our cash balance is sufficient to support our previously announced initiatives through the initial data readouts for our PDS0101 clinical trials. Michael King, our interim CFO, will provide additional details during his portion of today's prepared remarks shortly.
Now to review our clinical updates, I'd like to turn the call over to our Chief Medical Officer, Dr. Lauren Wood.