Kim Brazzell
Analyst · H.C. Wainwright. Your line is open
Thank you, Mark. I'm happy to share our progress with the KPI-012 program and additional work we're doing with our mesenchymal stem cell secretome platform. As Mark mentioned, we're on track to file an IND for KPI-012 and to initiate a Phase II/III clinical trial in persistent corneal epithelial defect patients in the fourth quarter of this year. We've also made significant progress towards identifying additional front-of-the-eye indications that are currently evaluating potential KPI-012 for the treatment of partial limbal stem cell deficiency and the ocular manifestations of moderate-to-severe Sjogren's, both of which are areas of significant unmet medical need. In addition, we're also exploring some exciting retinal applications for the secretome program. As we've discussed previously, KPI-012 is an application of our novel technology utilizing secretome harvested from human bone marrow derived mesenchymal stem cell. The secretome approach allows us to produce a cell-free therapy comprised of the essential biomolecule secreted by the mesenchymal stem cell, including growth factors, protease inhibitors, matrix proteins and neurotrophic factors with the potential for multiple therapeutic applications. Because our approach is cell-free, allows for many of the same benefits as more traditional cell therapy without the need for the administration of intact cells, which we believe will avoid many of the safety and logistics concerns associated with current cell therapy approaches. We are initially advancing KPI-012 for the treatment of persistent corneal epithelial defect, or PCED, which is defined as a nonhealing corneal wound or defect that is refractory to conventional treatments. PCED is a disease of impaired corneal healing that can be the result of numerous underlying etiologies, including, but not limited to, neurotrophic keratitis, infectious keratitis, surgical or nonsurgical trauma and severe ocular surface disease of various causes. Corneal healing is a highly regulated multifactorial process that involves numerous biological pathways and molecules. And we believe that effective treatment of PCED across its various etiologies require a multifactorial mechanism of action, such as that of KPI-012, to address the impaired healing that is the hallmark of the disease. PCED affects an estimated 100,000 patients each year in the U.S., and we believe it represents a potential market opportunity in excess of $1 billion. There is one approved therapy in the PCED space, OXERVATE, which has only been shown to be effective for the treatment of neurotrophic keratitis, which is estimated to be the underlying etiology for only third of all PCED cases. This therapy is quite burdensome for the patients. It is dosed six times a day at two-hour intervals for eight weeks and requires a multistep reconstitution process prior to each dose. We believe there is a clear unmet need for a new therapy that can provide benefit for all the various etiologies of PCED and improve the vision and quality of life of all PCED patients. As we have shared previously, the initial clinical trial conducted with KPI-012 in PCED patients of various etiologies demonstrated benefit in all eight evaluable PCED patients with complete healing of the PCED lesion in six of eight of these patients. KPI-012 was well tolerated in the trial with no significant safety issues. Pending FDA clearance of our planned IND, we plan to initiate a Phase III trial in PCED patients in the fourth quarter of 2022, which, if positive, could serve as one of the two required pivotal trials necessary for FDA approval. We expect top line results from this Phase II/III trial in the first quarter of 2024. Based on the compelling mechanism of action and numerous interactions with key opinion leaders, we're also evaluating the potential of KPI-012 for the treatment of partial limbal stem cell deficiency or partial LSCD, as we call it, and for the ocular manifestations of moderate-to-severe Sjogren's. Limbal stem cell deficiency is an ocular surface disease, characterized by the loss or deficiency of stem cells in the junction of the cornea and limbus, where they play an essential role in the generation and repopulation of corneal epithelial cells. When the limbal stem cell population is reduced or depleted, the ability of the corneal epithelium to prepare and renew itself is compromised, which can result in recurrent epithelial breakdown, neovascularization, conjunctival overgrowth and other sequelae that can lead to loss of corneal clarity and vision impairment as well as significant pain and diminished quality of life. There are currently no approved pharmaceutical products for the treatment of LSCD. Approximately 70% of LSCD patients or about 70,000 patients in the U.S. have partial LSCD, meaning they have some level of remaining stem cells, but still suffer significant pathology and symptomatology. We believe these patients would be appropriate candidates for KPI-012 to maintain the integrity of the ocular surface and avoid the vision impairment and pain associated with the disease. In addition to the effects of KPI-012 on corneal healing observed in both animal models and in PCED patients in the previous trial, the stat on the literature that suggests that MSC secretomes could also restore the limbal stem cell niche, which would be a significant benefit in both partial and complete LSCD. The other ocular surface indication of interest is Sjogren's, a chronic multisystem autoimmune disease, characterized by insufficient fluid production in certain glands of the body, leading to substantial dryness, primarily of the eyes and of the mouth. Approximately 90% of Sjogren's patients suffer from ocular manifestations and experience significant ocular symptoms, which often impacts patients' daily life and productivity. And as a result, the quality of life in Sjogren's patients can be significantly diminished. Despite current treatments, many Sjogren's patients do not achieve significant improvement in their ocular symptoms. There's a significant unmet need for new therapies that can provide meaningful improvement in the ocular symptoms, visual impair and quality of life to the approximately 50% of Sjogren's patients or roughly 95,000 people in the U.S. who suffer with moderate-to-severe disease. We estimate that partial limbal stem cell deficiency and the ocular manifestations of moderate-to-severe Sjogren's together represent a total potential market opportunity of between $1.5 billion and $2 billion in the United States alone. Finally, as we mentioned earlier, we also believe our secretome platform has potential utility for retinal degenerative diseases, such as retinitis pigmentosa and Stargardt disease. We plan to initiate preclinical trials evaluating the utility of our secretome platform for retinal degenerative diseases in the coming months with the goal of selecting a retinal indication for further development in the second half of 2023. Taken together, we believe our efforts with KPI-012 and our secretome platform provide ample opportunity to improve the treatment of a number of severe ocular surface diseases that impact thousands of patients around the world. We look forward to providing additional updates as we initiate our Phase II/III clinical trial in PCED planned for later this year and to potentially expand our efforts into additional indications in 2023. Now I'd like to pass the call to Mary to go over our financial results.