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Revealed: Actinium KOLs Engagement and Pioneering Strategies for Iomab-B and Actimab-A

Watch 2023 Actinium Pioneering Strategies_Mellalta Meets

As Actinium forges ahead with its transformative therapies, including Iomab-B and Actimab-A, its strategic approach extends beyond clinical trials and regulatory milestones. Actinium’s presentation of six abstracts at the Society for Nuclear Medicine and Molecular Imaging (SNMMI) 2023 reflects a concerted effort to expand awareness of Iomab-B and the groundbreaking SIERRA trial results among the scientific and medical communities.

Acute myeloid leukemia (AML) remains a formidable challenge in the realm of oncology, especially for patients with relapsed or refractory (R/R) disease. Despite recent advances in treatment options, the prognosis for these patients remains poor. Allogeneic hematopoietic stem cell transplantation (HSCT) stands as the only potentially curative option, but its applicability is limited to a minority of patients due to the difficulties in achieving complete remission and tolerating intense conditioning regimens, particularly among the older population. In this context, two innovative therapies, Iomab-B and Actimab-A, are emerging as strategic breakthroughs in AML treatment.

Iomab-B: Transforming AML Treatment for Older Patients

Unprecedented Bone Marrow Transplant Access and Outcomes

Iomab-B, also known as 131I-apamistamab, represents a revolutionary approach in the treatment of AML, particularly for older patients with R/R disease. This anti-CD45 radioimmunoconjugate has been designed to deliver targeted myeloablative radiation to bone marrow, offering a reduced intensity tolerability profile. The phase 3 data presented at the European Hematology Association (EHA) meeting in June 2023 showcased groundbreaking results.

The pivotal SIERRA (NCT02665065) study demonstrated the ability of Iomab-B to safely deliver myeloablative doses of targeted radiation to bone marrow. Combined with HSCT, the therapy resulted in rapid engraftment and high initial complete remission (CR)/complete remission with platelet recovery (CRp) rates. Notably, the therapy exhibited a favorable toxicity profile, addressing concerns about tolerability among older patients.

The most significant outcome was the statistically significant improvement in the primary endpoint of durable complete remission (dCR). Patients who achieved dCR experienced remarkable long-term survival, with notable improvements in overall survival (OS) and event-free survival (EFS). Iomab-B provided unprecedented bone marrow transplant access and outcomes for a patient population traditionally ineligible for HSCT, presenting new hope to this vulnerable group.

Commercial Strategy and Upcoming Milestones

The strategic implications of Iomab-B’s success are vast. With the intention to submit a Biologics License Application (BLA) to the U.S. Food and Drug Administration (FDA) in the second half of 2023, the company aims to set a new standard of care for R/R AML patients. By offering an Early Access Program during the approval process, Iomab-B can reach the maximum number of customers and address the unmet needs of AML patients expeditiously.

Actimab-A: A Game-Changer in Combination Therapy

Promising Results in TP53 Mutation Patients

While Iomab-B focuses on HSCT, Actimab-A takes a different strategic approach. This investigational therapy, combined with the chemotherapy regimen 7+3, demonstrated encouraging results in patients with a TP53 mutation. The phase 1/2 study reported an impressive overall response rate (ORR) of 67%, with some patients achieving remission after previously failing therapy.

The absence of early mortality (<30 days) in the study is a strategic advantage, providing confidence in Actimab-A’s safety profile. With such promising data, Actimab-A has the potential to become a cornerstone in combination therapies for R/R AML, representing a strategic opportunity to improve patient outcomes.

Expanding Commercial Reach and Milestones Ahead

Key Commercial Leader Hired for Strategic Launch

In anticipation of successful FDA approval, the company has strategically expanded its leadership team, appointing Caroline Yarbrough as Chief Commercial Officer. With her extensive commercial expertise, Yarbrough’s strategic vision will ensure the successful launch and commercialization of Iomab-B and Actimab-A. Her experience in leading successful launches for various cancer treatments, including hematology and cellular therapies, positions the company for a strategic advantage in the market.

Paving the Way for the Future of AML Treatment

The company’s strategic roadmap for 2023 encompasses several key milestones. Alongside the BLA submission for Iomab-B, the initiation of late-stage development for Actimab-A in combination therapies is poised to be a strategic game-changer. Additionally, the company’s NIH-funded Iomab-ACT collaboration with MSKCC presents a strategic opportunity for exploring further development in cell and gene therapy.

Collaborating with partner Immedica for the Marketing Authorization Application (MAA) and commercialization of Iomab-B in the European Union is a strategic step towards global expansion.

Reaching Key Physician Groups: Establishing Early Post-Approval Launch Momentum

Mellalta Meets recognizes the importance of Actinium’s presentations and the award at SNMMI 2023. This strategic initiative aligns with Actinium’s goal of generating early post-approval launch momentum, a crucial aspect in the concentrated transplant market.

By participating in major meetings and conferences like SNMMI, Actinium effectively engaged with three key physician groups: transplant specialists, hematologist/oncologists, and nuclear medicine physicians. The presentations of SIERRA trial results at these prestigious events not only established the credibility of Iomab-B but also expanded the therapy’s exposure to influential medical practitioners.

Strategic Physician Engagement: Garnering Inbound Interest and Paving the Way for Early Access Program

In the aftermath of SNMMI 2023, Actinium’s management confirmed the positive impact of their strategic engagement. The company noted that it had successfully gained significant exposure and captured the attention of the three key physician groups. This strategic outreach generated inbound interest from multiple groups eager to learn more about Actinium’s planned Early Access Program for Iomab-B in 2H23.

The strategic alignment with the medical community has set the stage for a successful early post-approval launch, with key physicians already expressing interest in the therapy. Actinium’s innovative approach to strategic physician engagement bodes well for the future, as it paves the way for a successful BLA filing in 2H23.

Mellalta Meets Conclusion: Strategic Innovations with a Transformative Impact

Actinium’s strategic initiatives have transcended the boundaries of clinical trials, heralding a new era in AML treatment. By showcasing the SIERRA trial results at SNMMI 2023 and engaging with influential physician groups, Actinium has strategically positioned itself for future success. The expanded awareness of Iomab-B and Actimab-A in the scientific and medical communities lays the foundation for early post-approval launch momentum and a promising future in the concentrated transplant market.

As we await the 2H23 BLA filing, Actinium’s strategic roadmap serves as a beacon of hope for AML patients and a testament to the company’s dedication to innovation and patient-centric care. With strategic expansion and awareness efforts, Actinium is poised to make a transformative impact on AML treatment, changing the trajectory of this challenging disease for the better.

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Mellalta Meets performed a Competitive Landscape and Competitive Intelligence study in the first quarter of 2023.  This research study aimed to analyze the dynamics of the Acute Myeloid Leukemia (AML) market in the G7 regions, identify current treatment trends, explore disruptive events, and highlight critical opportunities driving the AML market.

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