On December 9, 2021 Innate Pharma SA (Euronext Paris:IPH; Nasdaq:IPHA) ("Innate" or the "Company") reported that data from the Phase 2 expansion cohort (‘cohort 3’), exploring the triplet combination of monalizumab, cetuximab and durvalumab in the first-line treatment of patients with recurrent or metastatic head and neck squamous cell cancer (R/M HNSCC), will be presented virtually today at the ESMO (Free ESMO Whitepaper) Immuno-Oncology Congress 2021 (Press release, Innate Pharma, DEC 9, 2021, View Source [SID1234596647]).
Schedule your 30 min Free 1stOncology Demo!
Discover why more than 1,500 members use 1stOncology™ to excel in:
Early/Late Stage Pipeline Development - Target Scouting - Clinical Biomarkers - Indication Selection & Expansion - BD&L Contacts - Conference Reports - Combinatorial Drug Settings - Companion Diagnostics - Drug Repositioning - First-in-class Analysis - Competitive Analysis - Deals & Licensing
Schedule Your 30 min Free Demo!
Monalizumab, Innate’s lead partnered asset, is a potentially first-in-class immune checkpoint inhibitor targeting NKG2A receptors expressed on tumor-infiltrating cytotoxic CD8+ T cells and NK cells.
"These data show anti-tumor activity in the first study to evaluate this chemo-free triplet combination in first-line recurrent or metastatic head and neck cancer," said Joyson Karakunnel, M.D., MSc, FACP, Chief Medical Officer of Innate Pharma. "We believe that the combination of monalizumab with the other two antibodies has the potential to become a new treatment option for patients. We look forward to collaborating with AstraZeneca on next steps of this program."
Key Data Highlights
After a median follow-up of 16.3 months, preliminary data suggest anti-tumor activity in the triplet of monalizumab, cetuximab and durvalumab in first-line treatment of R/M HNSCC.
As of August 1, 2021, 40 patients were enrolled. Thirteen patients had a confirmed response with a 32.5% overall response rate (95% confidence interval (CI): 20-48), including three complete responses. Seven out of 13 responders were still on treatment. Median duration of response was not yet reached (95% CI: 7.1-not available). The survival rate at 12 months was 58.6% (95% CI: 45-77) and the median overall survival was 15 months (95% CI: 11.4 – not available).
In addition, Innate performed an exploratory subgroup analyses (n=40) according to Combined Positive Score (CPS), which is a PD-L1 scoring method that helps predict response to anti-PD-(L)1 therapy. In this analysis, CPS>1 (n = 25), the subset that had the greatest number of patients, showed a 40% overall response rate (95% CI: 23-59) and median overall survival of 17.3 months (95% CI: 14.7-NA). There were 5 patients with CPS<1, and CPS was unavailable for 10 patients.
The safety of this chemotherapy free regimen was acceptable with a low rate of discontinuation.
Presentation Details
The oral presentation (#123MO) entitled, "Monalizumab, cetuximab and durvalumab in first-line treatment of recurrent or metastatic squamous cell carcinoma of the head and neck (R/M SCCHN): a phase 2 trial," will be presented from 12:15-12:20 pm CET today.
About Monalizumab:
Monalizumab is a potentially first-in-class immune checkpoint inhibitor targeting NKG2A receptors expressed on tumor infiltrating cytotoxic CD8+ T cells and NK cells.
NKG2A is an inhibitory checkpoint receptor for HLA-E. By expressing HLA-E, cancer cells can protect themselves from killing by NKG2A+ immune cells. HLA-E is frequently overexpressed in the cancer cells of many solid tumors and hematological malignancies. Monalizumab may reestablish a broad anti-tumor response mediated by NK and T cells, and may enhance the cytotoxic potential of other therapeutic antibodies.
AstraZeneca obtained full oncology rights to monalizumab in October 2018 through a co-development and commercialization agreement initiated in 2015. The ongoing development for monalizumab is focused on investigating monalizumab in various combination strategies in different malignancies.