HOOKIPA Pharma Announces Pivotal Phase 2/3 Trial Design for HB-200 in Combination with Pembrolizumab

• Phase 2/3 pivotal trial design and protocol for HB-200 in combination with pembrolizumab for the first-line treatment of patients with HPV16+ recurrent or metastatic OPSCC aligned with FDA feedback
  

• HB-200 accepted for oral abstract presentation at ASCO 2024 Annual Meeting with data from approximately 40 patients treated with HB-200 in combination with pembrolizumab
  

• Two additional abstracts for HB-200 and HB-700 accepted for the ASCO 2024 Annual Meeting
  

• Company to host investor call at 8:00 a.m. ET on Thursday, April 25, 2024, to highlight path to potential registration; participant details below
  

NEW YORK and VIENNA, Austria, April 25, 2024 (GLOBE NEWSWIRE) -- HOOKIPA Pharma Inc. (NASDAQ: HOOK, HOOKIPA or the Company), a company developing a new class of immunotherapeutics based on its proprietary arenavirus platform, today announced its final pivotal Phase 2/3 trial design for HB-200 in combination with pembrolizumab. The Phase 2/3 trial design and protocol are based on alignment with the U.S. Food and Drug Administration (FDA) following the Company’s Type C meeting with the FDA.

The seamless Phase 2/3 trial is for the investigational product HB-200 in combination with pembrolizumab for the treatment of patients with Human Papillomavirus 16-positive (HPV16+) recurrent/metastatic PD-L1 CPS ≥ 20 oropharyngeal squamous cell carcinoma (OPSCC) in the first line setting. The Company anticipates the first patient will be enrolled in the fourth quarter of 2024.

The Company also announced acceptance of its HB-200 study abstract as an oral presentation at the American Society of Clinical Oncology (ASCO) 2024 Annual Meeting in the head and neck cancer session to be held on June 4, 2024. The presentation will include data for approximately 40 head and neck cancer patients treated with HB-200 in combination with pembrolizumab.

“It has been a dream of mine—and my HOOKIPA colleagues—to translate our science into a product that will make an impact for patients and help them fight cancer and infectious diseases. I am happy to say that we are taking a very big step forward to making this dream a reality,” said Joern Aldag, Chief Executive Officer of HOOKIPA. “We believe our data is best-in-class and puts us in the lead position for OPSCC in the first line setting. We have alignment with the FDA on our pivotal trial design and protocol, as well as PRIME designation for HB-200 in combination with pembrolizumab for the treatment of patients with OPSCC in the first line setting from the European Medicines Agency. We believe our trial design and alignment with our primary regulators can help us reach a potential registration more quickly. Further, we have been accepted for an oral abstract presentation at ASCO in June 2024 where we will present an update from our Phase 1/2 trial with approximately 40 patients treated with the combination of HB-200 and pembrolizumab.”