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NovelMed Initiates Phase II Trial for NM8074, an Anti-Bb Antibody, in Treatment-Naïve PNH Patients: An Overview of Progress in PNH Study

Tuesday, October 31, 2023

NovelMed Therapeutics, Inc. is excited to announce the commencement of its Phase II clinical trial for the treatment of newly diagnosed Paroxysmal Nocturnal Hemoglobinuria (PNH) patients using their groundbreaking anti-Bb antibody, NM8074. This open-label, multi-dose, multi-center study aims to evaluate the safety and efficacy of NM8074 in the PNH patient population. Currently, eight PNH patients have been enrolled in the trial, with two patients already receiving NM8074 treatment. Key efficacy parameters include improvements in Hemoglobin, an increase in RBC clone size, decreased Lactate Dehydrogenase (LDH) levels, reduced pRBC transfusions, and decreased D-Dimer levels. Positive outcomes on these measures will pave the way for NM8074 as a highly differentiated and innovative biologic for newly diagnosed PNH patients.

The Phase II study is divided into two cohorts, featuring a biweekly dosing schedule spanning a 3-month assessment period. Notably, preliminary data indicates that NM8074 demonstrates a favorable safety profile, with no safety concerns. NM8074 was administered to newly diagnosed PNH patients with a clone size exceeding 10%. The results show significant reductions in LDH, Reticulocytes, Free Hemoglobin, and D-dimer, along with increases in Hemoglobin and Haptoglobin levels as expected. Furthermore, the clone size increased in a time-dependent manner. In summary, these observed changes in efficacy parameters validate the drug's mechanism of action and substantiate NM8074 as an effective PNH treatment option.

NovelMed Therapeutics, commented, "Preliminary data from the Phase II clinical trial in newly diagnosed PNH patients confirms NM8074's potential to comprehensively address intravascular and extravascular hemolysis-mediated anemia and bolster patient host defense systems, thus reducing the risk of infections."

Previously, a Phase I trial involving forty healthy volunteers was successfully completed without any safety concerns. NM8074 was well tolerated across all doses, ranging from 0.3 to 20 mg/kg. These results corroborate NM8074's complete inhibition of the alternative pathway (AP) while preserving the classical pathway (CP), aligning with data generated by NovelMed's expert scientists. This selective mechanism distinguishes NM8074 from other complement blockers currently approved or in development by the FDA.

PNH is a rare blood disorder characterized by the immune system's (Complement) attack on and destruction of PNH Red Blood Cells (RBC hemolysis). This leads to a decrease in hematocrit and hemoglobin levels, elevated LDH and D-Dimer, and an increased need for blood transfusions. PNH is a rare, chronic, and serious complement-mediated blood disorder with significant unmet needs. Despite the use of anti-C3 and anti-C5 therapies, many PNH patients continue to experience anemia, fatigue, and dependence on blood transfusions.

NM8074 is a monoclonal antibody with dual specificity, differentiating it from other therapies such as Iptacopan, which binds to Factor B. NM8074 targets Bb and selectively blocks the alternative pathway (AP). This high-affinity monoclonal antibody inhibits C3b formation and deposition and membrane-attack complex (MAC) formation, offering a significant advantage in preventing the total lysis of red blood cells in PNH. Furthermore, NM8074 is being evaluated for other clinical indications, including atypical Hemolytic Uremic Syndrome (aHUS), for which it has received regulatory approval. NM8074's potential extends to complement-mediated pathologies in renal disorders, ocular disorders, neurological disorders, dermatological disorders, and inflammation, illustrating its broad application across multiple diseases.

Dr. Rekha Bansal, Chief Executive Officer, emphasized, "This wide application to multiple diseases underscores our commitment to serving diverse patient populations."

In contrast to other complement blockers from third parties, which indiscriminately block both the alternative and classical complement pathways, NM8074 offers a unique mechanism of action. It is expected to function as a superior therapeutic option, potentially without the Black-Box warning associated with currently FDA-approved treatments.



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