Company: HURA
Filing Date: 2025-05-05
Form Type: 425
Source: 0000950170-25-063170
Chunk: 2

Company: TuHURA Biosciences, Inc./NV
Filing Date: 2025-05-05
Form: 425
Chunk 2
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.1 criteria at three months and six months. Data from the trial is anticipated by the end of Q4 2025 or early Q1 2026.

TuHURA is also preparing to initiate a single, randomized, placebo-controlled Phase 3 accelerated approval trial of IFx-2.0 administered as an adjunctive therapy to Keytruda®(pembrolizumab) versus Keytruda®plus placebo in first-line treatment for checkpoint inhibitor-naïve patients with advanced or metastatic MCC (NCT06947928). The primary endpoint in the Phase 3 trial will be overall response rate (ORR) at approximately 24 weeks, with a secondary endpoint of progression free survival (PFS) per RECIST 1.1 criteria. The Company has reached agreement with U.S. Food and Drug Administration (FDA) on requirements for lifting a partial clinical hold on this trial and believes it will meet the requirements in Q2 2025. TuHURA currently anticipates initiating the Phase 3 registrational trial in Q2 2025.

Based on data generated in TuHURA’s Phase 1b trial of IFx-Hu2.0 in CPI naïve patients with advanced or metastatic MCC who progressed receiving CPI therapy, FDA’s Oncology Center of Excellence (OCE), consistent with the FDA’s Project Front Runner Initiative, asked the Company to consider a first-line randomized placebo controlled trial of Keytruda®plus placebo or IFx-Hu2.0. The FDA also agreed that the trial could be conducted under their accelerated approval pathway with the use of Objective Response Rate (ORR) as the primary endpoint. The FDA also asked the Company to consider incorporating into its accelerated approval trial a key secondary end point of Progression Free Survival (PFS), which, if successfully achieved without a detriment to overall survival at the time of analysis, may result in the Company not being required to conduct a post approval confirmatory trial, and this single trial could potentially fulfill requirement for regular approval. The Company and the FDA have entered into a Special Protocol Assessment Agreement for the planned Phase 3 trial.

About TuHURA Biosciences, Inc.

TuHURA Biosciences, Inc. (Nasdaq: HURA) is a Phase 3 immuno-oncology company developing novel technologies to overcome primary and acquired resistance to cancer immunotherapy, two of the most common reasons cancer immunotherapies fail to work or stop working in the majority of patients with cancer.

TuHURA