FDA Fast Tracks Immuneering's IMM-1-104 for Advanced Melanoma

20 December 2024
Immuneering Corporation, a company focused on developing universal-RAS/RAF cancer therapies, has recently announced a significant advancement in their clinical-stage program. The U.S. Food and Drug Administration (FDA) has granted Fast Track designation to their leading candidate, IMM-1-104, for treating patients with unresectable or metastatic NRAS-mutant melanoma who have either not responded to or cannot tolerate PD-1/PD-L1-based immune checkpoint inhibitors. This promising therapy is currently under evaluation in a Phase 2a clinical trial involving patients with advanced solid tumors, including melanoma.

According to Ben Zeskind, Ph.D., Co-Founder and CEO of Immuneering, immune checkpoint inhibitors are crucial in melanoma treatment. However, patients who cannot benefit from them have very limited treatment options. Although targeted therapies like MEK and RAF inhibitors have shown potential in treating melanoma, they often come with significant toxicity. At the recent European Society for Medical Oncology 2024 congress, IMM-1-104 was presented as a novel MEK inhibitor that demonstrated a unique tolerance profile in Phase 1 trials, distinguishing it from other MEK inhibitors currently in use. This attribute opens up possibilities for IMM-1-104 to aid melanoma patients either as a standalone treatment or in combination with RAF inhibitors and immune checkpoint inhibitors.

The FDA's decision to grant Fast Track designation for IMM-1-104 in advanced melanoma addresses a critical unmet need in this field. The ongoing Phase 2a clinical trial is actively enrolling melanoma patients across five distinct arms. Previously, IMM-1-104 had also received Fast Track designations for treating both first and second-line pancreatic cancer, illustrating its versatile potential.

The Fast Track designation is a program intended to speed up the development and review process of drugs that could potentially treat serious conditions and meet unmet medical needs. Medications with this designation may benefit from more frequent discussions with the FDA about their development plans and could be eligible for accelerated approval and priority review if certain criteria are met.

IMM-1-104 is designed to achieve universal-RAS activity by selectively affecting cancer cells more than healthy cells. This is accomplished through Deep Cyclic Inhibition of the MAPK pathway with once-daily dosing. The treatment is currently undergoing evaluation in a Phase 1/2a study targeting patients with advanced solid tumors that have RAS mutations.

Immuneering Corporation is dedicated to developing and commercializing universal-RAS/RAF therapies for a wide range of cancer patients. Their initial focus is on creating a universal-RAS treatment. The company's strategy involves Deep Cyclic Inhibition of the MAPK pathway to impact cancer cells while sparing healthy ones. IMM-1-104, an oral, once-daily Deep Cyclic Inhibitor, is now in a Phase 2a trial for patients with advanced solid tumors, including those with RAS mutations. Additionally, Immuneering is developing IMM-6-415, a twice-daily oral Deep Cyclic Inhibitor now in a Phase 1/2a trial for patients with tumors harboring RAS or RAF mutations. The company's pipeline also includes several early-stage programs.

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