Tom Isett
Analyst · Cantor Fitzgerald. Your line is open
Thank you, Steve, and good afternoon, everyone. I am pleased to report another highly productive quarter for our biopharmaceutical development activities, wherein we continue to grow and advance our recently established immunooncology pipeline, while also advancing our second-generation COVID-19 vaccine candidate. Last month, we received the FDA’s response to our pre-IND package for 202, IBIO-202, which is our nucleocapsid protein subunit vaccine candidate against the SARS-CoV-2 virus. Given the agency’s feedback, we are moving forward with IND-enabling studies and we plan to file an investigational new drug application before the end of this calendar year. We were guided in the development of IBIO-202 what we call our DAVi strategy, with the acronym reflective of the need for vaccines with greater durability, access and variant inclusion. These critical needs are currently unmet by commercially available vaccines, all of which rely in some way on the virus’ spike protein as their basis for generating immunity. Spike protein is a major modulator of CoV-2’s infectivity and lead a vision [ph]. And as we have seen, it is subject to frequent mutations. Indeed, since our last call, we saw the emergence and rapid spread of Omicron, a variant which had over 35 mutations at its spike. It’s important to note that it’s one of the very few companies, if not the only company, developing a vaccine exclusively based on the far less mutable nucleocapsid protein, iBio has the opportunity to lead in the development through its true second-generation solution. Our preclinical data suggests that IBIO-202 provides a durable memory T-cell response. And at least today, none of the variants displayed mutations in the region of the virus that we used for our antigen. Thus, with our work on IBIO-202, we are aiming to deliver people’s last COVID vaccine dose, not just their next dose. While we think that the switch to a nucleocapsid-based subunit vaccine to address issues with durability and the variance, we believe it also can favorably affect access as well. This is because subunit vaccines typically don’t have the additional costs and logistical challenges associated with frozen transport and storage, like mRNA vaccines too. However, we see technology solutions for other complementary ways to improve access even further. In particular, there are new delivery technologies that can avoid the labor-intensive process of delivering intramuscular injections, while making it easier for people with a fear of needles to seek getting vaccinated. To that end, in November, we executed an agreement with a leading innovator of microarray patch delivery systems to explore the feasibility of administering IBIO-202 intradermally. Microarray patches are minimally invasive and contain microneedles that painlessly penetrate the upper layers of the skin and dissolve to release their payload. This intradermal delivery method may even allow for vaccine self-administration, creating a more accessible alternative to intramuscular injections. Interestingly, this route of administration may also enhance durability is targeting a large pool of immune cells in the skin they elicit an enhanced immune response. In turn, a stronger immune response could mean a lower dose of antigen is required, which then again could further improve access via lower cost of goods. Turning now to our therapeutics, we are very pleased to see the investments that we began making in drug discovery R&D a few quarters ago already bearing fruit with multiple new pipeline additions and advancements. I would like to start our discussion in this area by pointing out that going forward, we will classify our discovery and preclinical programs into four distinct stages for greater clarity, ease of tracking and consistency with our peers. The stages are: one, early discovery; two, late discovery; three, lead optimization; and four, IND-enabling. Since we announced plans to create our in-house drug discovery capabilities at the end of last fiscal year, we went on to add six new immunooncology assets to our pipeline in just six months. Our newest candidate, a monoclonal antibody designed with machine learning tools, has progressed the fastest. Emanating from our partnership with RubrYc Therapeutics, the concept for this molecule was only just identified in October, but due in part to its high-quality design, this candidate has already moved through to late discovery stage. This example helps demonstrate the power of artificial intelligence in developing higher quality therapeutic candidates and Martin will speak to this further. Meanwhile, another element of our partnership with RubrYc is our worldwide exclusive license agreement to a novel IL-2 sparing anti-CD25 antibody for the depletion of immunosuppressive regulatory T-cells. This is a promising anticancer therapeutic candidate with the potential to turn cold tumors hot. We have transitioned the development of the molecule from the mammalian cell culture production methods that RubrYc’s CDMO was using to our plant-based FastPharming manufacturing system. So in addition to the scalability, sustainability and quality advantages, we are now realizing by switching to FastPharming, we also avoid the costly and complicated process of licensing the intellectual property needed to produce an afucosylated version of the molecule in mammalian systems. We can achieve the same end by simply deploying our proprietary Glycaneering technology to afucosylate the antibody implants. Data generated to-date demonstrates that the quality of the FastPharming-produced antibody is comparable to traditional mammalian bio-production methods. We continue to advance this candidate as IBIO-101, an estimate that we may enter the IND-enabling stage before the middle of calendar 2022. We added another candidate to our oncology pipeline in November when we announced a research collaboration with the University of Texas Southwestern Medical Center to explore the anti-cancer potential of the endostatin E4 molecule in solid tumors. A version of this E4 protein has antifibrotic properties and makes up the core of the IBIO-100 program. While we continue to develop IBIO-100 for two major fibrotic diseases, systemic scleroderma and idiopathic pulmonary fibrosis, this new collaboration with UTSW is based on E4’s potential to address tumors, with a strong fibrotic component like those associated with pancreatic cancer that make them so hard to treat. On a related note, last week, iBio and a licensor for the fibrotic indications, the University of Pittsburgh, signed an amended license agreement that extends a number of development milestone-related deadlines for IBIO-100. Now, I’d like to turn the call over to our Chief Scientific Officer, Martin Brenner, who will provide us with an update on our recent R&D activities and pipeline drug candidates. Martin?