OSLO, Norway, May 09, 2022 (GLOBE NEWSWIRE) -- Nykode Therapeutics AS (Euronext Growth (Oslo): NYKD), a clinical-stage biopharmaceutical company dedicated to the discovery and development of vaccines and novel immunotherapies, today announced positive interim results from its Phase 2 VB C-02 trial of VB10.16, its wholly-owned therapeutic cancer vaccine, in combination with the PD-L1 inhibitor atezolizumab in patients with HPV16-positive advanced cervical cancer. Interim results from 39 patients with a median follow up of 6 months show an ORR of 21%—including two patients who achieved a complete response and six who achieved a partial response—and a very high disease control rate of 64%. The trial enrolled a heavily pre-treated patient population with more than two thirds of the patients having received at least two previous systemic lines of treatment.
Interestingly, anti-tumor activity was observed in both PD-L1 positive (ORR of 27% and DCR of 77%) and PD-L1 negative patients (ORR of 17% and DCR of 58%) indicating a potential clinical benefit also in the PD-L1 negative population. In addition, a DCR of 71% was observed in patients with non-inflamed tumors, including both immune desert and T cell excluded tumors. Together these findings suggest a differentiated anti-tumor response pattern of the combination treatment compared to checkpoint inhibitor monotherapy.
“We are thrilled to report these positive interim safety and efficacy results from our Phase 2 trial with VB10.16, which showed evidence of durable anti-tumor activity in a heavily pre-treated population of patients with late-stage cervical cancer,” said Michael Engsig, Chief Executive Officer of Nykode Therapeutics. “These interim results support Nykode’s unique approach of targeting Antigen-Presenting Cells (APCs), designed to produce a robust and long-lasting CD8 killer T cell response against cancer cells. We look forward to reporting updated efficacy data readouts from the Phase 2 trial during the first half of 2023 as we continue to advance our cervical cancer program.”
Immunological analyses of the peripheral T cell responses demonstrated an increased HPV16-specific IFNγ T cell immune response post-vaccination in the majority of subjects and were associated with clinical efficacy indicating the induction of clinically relevant T cell responses. Clearance of circulating HPV16 DNA was significantly correlated with clinical response and progression free survival suggesting ctDNA may be an early marker of response to treatment in cervical cancer. VB10.16 is potentially a first-in-class therapeutic vaccine against HPV16 positive cervical cancer.
"The patients who were treated with VB10.16 in combination with atezolizumab in the C-02 trial were heavily pre-treated and are prone to progress quickly,” said Professor Peter Hillemanns, Director of the Departments of Gynecology, Obstetrics and Breast Cancer at Hannover University Hospital, Germany and principal investigator of the C-02 trial. “It is very encouraging to see that a majority of patients experienced a clinical benefit and that many patients had durable responses. The combination of VB10.16 and atezolizumab was also well tolerated by patients.”
“Treatment advances within the area of advanced cervical cancer have been limited though checkpoint inhibitors have demonstrated clinical efficacy in some patients. The unmet need is still high, and we are very pleased to see a high disease control rate and durable responses in these heavily pre-treated HPV16+ cervical cancer patients. The anti-tumor activity seen in both non-inflamed and PD-L1 negative populations may potentially open up a new subset of patients for treatment. These findings indicate that VB10.16 may give a meaningful added clinical benefit compared to the existing standard of care treatment in this setting. We would like to thank all the investigators, patients and their relatives for participating in this trial. Without all of you the advances of VB10.16 would not have been possible,” added Siri Torhaug, Chief Medical Officer of Nykode Therapeutics.
VB10.16 was generally safe and well tolerated, with 10% of patients experiencing Grade 3 or more treatment-related adverse events, indicating no increased toxicity compared with atezolizumab monotherapy and a favorable safety pro is consistent with previously published data for the Nykode DNA vaccine technology platform.
Nykode expects to report updated efficacy data read-outs from VB C-02 during the first half of 2023.