David Dodd
Analyst · NOBLE Capital Markets
Thank you, Max. Good afternoon, and thank you for participating in the first quarter 2024 GeoVax Corporate Update Call. During the first quarter, we successfully advanced our developments focused on our 2 Phase II status products: Gedeptin, a unique therapy against solid tumors, and GEO-CM04S1, a next-generation COVID-19 vaccine.
In addition, we also advanced other critically important initiatives. Today, we'll discuss the progress status and plans related to Gedeptin and CM04S1.
Our goal is to develop innovative cancer therapies and infectious disease vaccines addressing critically important unmet medical needs, pursuing initial indications that support expedited registration pathways. We anticipate establishing business partnerships and collaborations that support a worldwide development commercialization and distribution. Following my comments, Mark Reynolds, our CFO, will provide an update of our financials, and then your questions will be addressed.
At year-end, we announced the closure of enrollment for the Phase I/II trial of Gedeptin among advanced head and neck cancer patients. This initial targeted patient population represents those who are in end-stage care. The 17,000 in the U.S. and over 400,000 worldwide will unfortunately die each year as a result of head and neck cancer. Our goal is to obtain clinical evidence supporting advancement of this therapy, including in patients with earlier-stage disease.
You'll recall, this trial was funded by the FDA under the Orphan Drugs clinical trial program. We expect to report the trial final results during this first half of 2024, followed by discussing our plans for further evaluation of Gedeptin in patients with head and neck cancer, including a role similar to neoadjuvant or cytoreductive radiotherapy in combination with checkpoint blockade medications.
We refer to Gedeptin as tumor-agnostic, meaning that its mechanism of action will enable us to address a variety of solid tumors, both cancerous and benign.
We hold worldwide rights for all indications of this technology, and we are participating in various oncology and [ partnering ] conferences and some of which we will present Gedeptin clinical data with others to conduct partnering discussions.
We recently convened our oncology advisers reviewing the clinical results to date as well as further opportunities related to Gedeptin and other monotherapy indications, also address recombination therapy indications, Gedeptin in conjunction with immune checkpoint inhibitors. We continue to anticipate discussions with the FDA related to a potential expedited path to registration.
CM04S1, our next-generation COVID-19 vaccine, aims to provide a more practical public health-friendly vaccine solution [ than that offered ] from the currently approved vaccines. We believe that this is achieved by stimulating a robust and durable immune response across multiple virus variants as a result of the induction of both the antibody and cellular arms of the immune system against multiple virus antigens. This is the key differentiation of our vaccine in the current authorized vaccines.
Our vaccine utilizes a proven safe and efficient delivery platform, modified vaccinia Ankara, or MVA, which does not replicate in mammalian cells. This distinction is critically important in addressing the high-risk populations of immune-compromised individuals, for whom the current vaccines and monoclonal antibody therapies focus only on blocking or reducing virus infection are often inadequate. That our vaccine platform, MVA, is also a stand-alone vaccine authorized for protection against Mpox and smallpox is a unique feature, with critically important clinical benefits providing a significant differentiation for CM04S1.
In addition, we believe that CM04S1 offers an immune profile optimal for more general use as a heterologous booster to current mRNA vaccines, providing a more robust, durable and broadly functional immune response against emerging variants, potentially without the need for the continuous vaccine reconfiguration that appears necessary with the mRNA vaccine.
Relative to CM04S1, we anticipate partnering and collaborations in additional clinical and research efforts and in support of worldwide commercialization and distribution. Active initiatives are underway in these areas.
Let me now address our various clinical trials underway with this promising product. 3 Phase II clinical trials are underway with CM04S1, 2 of which address the high-risk populations of immunocompromised patients. The other Phase II trial evaluates our vaccine as a heterologous booster among healthy adults following prior receipt of an mRNA vaccine.
Overall, we hope to demonstrate that our COVID-19 vaccine successfully addresses the current unmet needs among the millions of immunocompromised patients while also demonstrating the vaccine is a more robust durable booster vaccine when used in conjunction with mRNA vaccines.
Starting with our healthy adult booster trial, last September, we completed enrollment in this trial. The trial involves 63 healthy adults who had previously received the Pfizer and Moderna mRNA vaccine. The immunological responses measured throughout the year-long study provide both neutralizing antibodies against multiple SARS-CoV-2 variants and specific T cell responses.
This past February, we reported positive interim data from this trial, indicating no serious adverse defense and statistically significant increases in neutralizing antibodies against multiple SARS-CoV-2 variants, ranging from the original Wuhan strain through Delta and Omicron XBB.1.5 as well as robust cellular immune responses.
We plan to perform additional testing against the current JN.1 variant. Final results from this heterologous booster trial are anticipated during fourth quarter this year, reflecting the 12-month monitoring of these patients.
In the U.S., there are approximately 20 million, 25 million immune-compromised adults. Worldwide, there are an estimated 250-plus million. Such populations include those with various blood cancers, renal disease, autoimmune diseases such as lupus, transplant patients and others with disease- or therapy-induced immunosuppression.
Many of these patients are limited in their ability to respond adequately to the approved mRNA vaccines, placing them at significant increased risk of severe COVID-19 infection, hospitalization and potentially death. This is well documented in the medical literature, highlighting the need of a next-generation vaccine that addresses this critically important medical area.
We believe that CM04S1 is the leading next-generation vaccine in clinical development that support of the needs of immunocompromised patients. Also, we believe that an opportunity for an expedited regulatory path likely exists due to our focus on such high-risk, unserved and underserved immunocompromised patient populations.
Encouraging data from our Phase II stem cell transplant/immunocompromised randomized trial comparing CM04S1 against an mRNA vaccine have been presented at several international conferences. Preliminary results were published last September in the peer-reviewed journal vaccines. The findings demonstrated robust [ immunogenicity ], illustrating the vaccine's ability to strongly induce both antibody and T cell responses, essential for confirming protection, particularly in immunocompromised individuals.
The vaccine article also highlighted the unique feature of CM04S1 providing immune responses across a spectrum of viral variants, again, from the ancestral Wuhan strain through Delta and the highly [ virulent ] Omicron XBB.1.5 variant.
We're continuing to expand this study to additional sites. Thus far, the data continue to demonstrate increased robust protective immunity and increased durability. This patient population represents one of the highest at-risk patient populations for severe disease, hospitalization and the risk of debt.
Following the initiation of patient enrollment in the chronic lymphocytic leukemia immunocompromised patient trial last August, this investigator-initiated trial has continued to recruit and enroll patients. The trial is designed to evaluate CM04S1 among approximately 80 CLL patients directly comparing it to the Pfizer-BioNTech mRNA vaccine.
Typically, these patients are unable to generate protective antibody responses following mRNA vaccine due to their underlying hematologic malignancy, placing them at extreme risk of developing clinically severe COVID-19. As a consequence, many of these patients remain homebound more than 4 years since the pandemic began.
We are optimistic the CM04S1 can offer these individuals the protection from this virus that they still desperately need. We anticipate that the required number of patients in support of an interim analysis will soon be reached and that the interim results will be available yet this year.
Finally, I'd like to address Project NextGen. This $5 billion initiative, the follow-on from Operation Warp Speed, is focused on accelerating the clinical development of COVID-19 vaccine with the potential for enhanced breadth of protection against variants and improved durability being particularly interested in novel vaccine candidates already in clinical trials. CM04S1 is a prime example of the desired next-generation COVID-19 vaccine.
We continue to have active advancing negotiations regarding the inclusion of CM04S1 in Project NextGen, and we look forward to further updating you in the near future.
We're addressing opportunities that provide us a basis for achieving leadership within differentiated patient areas and commercial markets. Our current clinical-stage products, Gedeptin and CM04S1, are focused on patient populations currently underserved or unserved by existing vaccines and/or therapies.
GEO-MVA, our vaccine against Mpox and smallpox, is intended to disrupt the current global monopoly in that important area, providing us a leadership position as the first U.S.-based supplier of such a vaccine.
This may also provide GeoVax our initial step into revenue generation due to the significant government interest in U.S.-based supply chains versus overdependence on non-U.S. suppliers. The strong sentiment in favor of such on-sourcing initiative remains a major national legislative focus and interest, and we're well aware of it and very much involved in it.
We're confident that we're on a course that we'll build significant shareholder and stakeholder value while delivering critically important differentiated products to improve lives worldwide. During the remainder of this year, we'll continue to report progress and results from our CM04S1 Phase II programs.
For Gedeptin, we expect to report the final results from the recently completed trial and our plans with the expanded Phase II trial. We also expect to report further plans regarding next steps related to evaluating Gedeptin as combination therapy used in conjunction with immune checkpoint inhibitors.
Relative to our MVA vaccine against Mpox and smallpox, we anticipate reporting our regulatory path and plans related to advancing that product towards registration. Finally, we anticipate further updates related to our advanced MVA manufacturing process targeted to enable GeoVax to effectively produce and distribute MVA-based vaccines in response to real-time market needs.
To summarize, our various clinical-stage products, Gedeptin, CM04S1 and MVA, represent critically important areas of medical needs, largely unserved or underserved by current products and standard of care. We are pleased with the consistent encouraging results we're seeing from our clinical studies.
Moreover, we believe the expedited path to registration are feasible for these products. From a potential commercial perspective, these product opportunities represent an estimated annual U.S. revenue potential of almost $30 billion.
I'll underscore that this isn't a sales forecast, but rather a reflection of the significance of the need to address these critically important areas of health care, both clinically and commercially. Expanding this to a worldwide basis in conjunction with partners and collaborators adds to the confidence we have relative to the outlook for GeoVax, our shareholders and stakeholders.
Now I'd like to turn the presentation over to Mark Reynolds, GeoVax Chief Financial Officer, for a review of our recent results and financial status. Mark?