HOOKIPA Pharma Announces Positive Preliminary Phase 2 Data on HB-200 in Combination with Pembrolizumab in Patients with HPV16+ Head and Neck Cancers
NEW YORK and VIENNA, Austria, May 31, 2023 (GLOBE NEWSWIRE) -- HOOKIPA Pharma Inc. (NASDAQ: HOOK, ‘HOOKIPA’), a company developing a new class of immunotherapeutics based on its proprietary arenavirus platform, today announced positive preliminary data from its ongoing Phase 2 study of HB-200 in combination with pembrolizumab in patients with recurrent/metastatic Human Papillomavirus 16-positive (HPV16+) head and neck cancer. New data show a 43 percent objective response rate (ORR) with HB-200 in combination with pembrolizumab in checkpoint inhibitor (CPI)-naïve patients, doubling the 19 percent response rate for pembrolizumab alone. HOOKIPA plans to share the full data at a medical conference later this year and is preparing to start a pivotal trial of HB-200 in combination with pembrolizumab in the 1st-line setting in 2024. The company will host a webcast call June 1st at 8:00 a.m. EDT.
“Given the unmet medical need for patients with recurrent/metastatic HPV16+ head and neck cancers, we are thrilled to share the preliminary data on HB-200 in combination with pembrolizumab as they show a robust improvement in objective response rate and prolonged tumor control compared to pembrolizumab alone,” said Joern Aldag, Chief Executive Officer at HOOKIPA. “Efficacy, immunogenicity and safety data observed in our HB-200 program to-date support our decision to progress to a pivotal trial of HB-200 in combination with pembrolizumab as 1st-line treatment for these patients. The data also underscore the scalability of our arenaviral platform across a range of cancers.”
HB-200 results (NCT04180215)
1st-line combination data
2nd-line plus combination data
Safety and tolerability profile
Webcast: HOOKIPA will host a live webcast on June 1, 2023 at 8:00 a.m. EDT. Joern Aldag, Chief Executive Officer, Katia Schlienger M.D., Ph.D., Chief Medical Officer, and Klaus Orlinger, Ph.D., Chief Scientific Officer will provide an overview of the HB-200 data and future plans for HOOKIPA’s oncology program. Alan Ho, M.D., Ph.D., a study investigator, will also offer commentary on the unmet medical need for patients with head and neck cancer.
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The webcast and the presentation will be available within the Investors & Media section of HOOKIPA’s website at https://ir.hookipapharma.com/events. An archived replay will be accessible for 30 days following the event.
About the HB-200 trial (NCT04180215)
The Phase 2 part of the trial is open-label with primary endpoints of efficacy based on objective response and disease control rate as defined by RECIST 1.1 and iRECIST. The trial is evaluating HB-200 in combination with pembrolizumab in the 1st-line and 2nd-line plus settings, as well as HB-200 alone in the post-standard of care setting. HOOKIPA anticipates sharing an additional data update at an upcoming medical conference.
About Human Papillomavirus-driven Cancers
While there are numerous HPV types associated with cancer, HPV16 is the most common cause of cancer. Most HPV infections are cleared from the body with no lasting consequences. However, in some cases, HPV DNA becomes integrated into chromosomal DNA. When host cells take up this DNA, they express the HPV E6 and E7 proteins. This uptake can potentially lead to cancer since expression of these proteins leads to alterations in cell cycle control, which in turn predisposes these cells to become cancerous.
Find out more about HOOKIPA online at www.hookipapharma.com
Forward Looking Statements
Certain statements set forth in this press release constitute “forward-looking” statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. Forward-looking statements can be identified by terms such as “believes,” “expects,” “plans,” “potential,” “would” or similar expressions and the negative of those terms. Such forward-looking statements involve substantial risks and uncertainties that could cause HOOKIPA’s research and clinical development programs, future results, performance or achievements to differ significantly from those expressed or implied by the forward-looking statements. Such risks and uncertainties include, among others, the uncertainties inherent in the drug development process, including HOOKIPA’s programs’ early stage of development, the process of designing and conducting preclinical and clinical trials, the regulatory approval processes, the timing of regulatory filings, the challenges associated with manufacturing drug products, HOOKIPA’s ability to successfully establish, protect and defend its intellectual property, risks relating to business interruptions resulting from the coronavirus (COVID-19) disease outbreak or similar public health crises, the impact of COVID-19 on the enrollment of patients and timing of clinical results, and other matters that could affect the sufficiency of existing cash to fund operations. HOOKIPA undertakes no obligation to update or revise any forward-looking statements. For a further description of the risks and uncertainties that could cause actual results to differ from those expressed in these forward-looking statements, as well as risks relating to the business of the company in general, see HOOKIPA’s quarterly report on Form 10-Q for the quarter ended March 31, 2023, which is available on the Security and Exchange Commission’s website at www.sec.gov and HOOKIPA’s website at www.hookipapharma.com.
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1 Harrington et al. Pembrolizumab With or Without Chemotherapy in Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma: Updated Results of the Phase III KEYNOTE-048 Study. Journal of Clinical Oncology. 2023;41(4);790-802.
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