Article
作者: Verlingue, Loic ; Dziadziuszko, Rafal ; Oaknin, Ana ; Prenen, Hans ; Lugowska, Iwona ; Deva, Sanjeev ; Perets, Ruth ; Italiano, Antoine ; Keshelava, Nino ; Lindsay, Colin R. ; Richard, Muriel ; Boetsch, Christophe ; Smolin, Alexey ; Cicin, Irfan ; Roselló-Keränen, Susana ; Taus, Álvaro ; Sleiman, Nassim ; Teichgräber, Volker ; Arslan, Cagatay ; Tosi, Diego ; Ardeshir, Caroline ; Kraxner, Anton ; Goksu, Sema Sezgin ; Rottey, Sylvie ; Marbach, Daniel ; Charo, Jehad ; Evers, Stefan ; Gumus, Mahmut ; Guerra Alia, Eva Maria ; Moiseyenko, Vladimir ; Lindsay, Colin R ; Dejardin, David ; Habigt, Christin
BACKGROUND:Simlukafusp alfa (FAP-IL2v) is an immune cytokine engineered to selectively promote immune responses in the tumour microenvironment. We evaluated the antitumour activity and safety of FAP-IL2v plus atezolizumab in recurrent and/or metastatic cervical squamous cell carcinoma (SCC) in a phase 2 basket study (NCT03386721).
METHODS:Patients with confirmed metastatic, persistent or recurrent cervical SCC who had progressed on ≥1 anti-cancer therapy and had measurable disease were enrolled. FAP-IL2v 10 mg was administered once every 3 weeks (Q3W) or once weekly (QW) for 4 weeks then once every 2 weeks (Q2W) with the corresponding Q3W or Q2W atezolizumab regimens. The primary endpoint was objective response rate by investigator assessment.
FINDINGS:Forty-eight patients were enrolled (Q3W: n = 47; QW/Q2W: n = 1). Among 45 response evaluable patients, objective responses occurred in 12 patients (27%; CI 16.0-41.0), including 3 complete and 9 partial responses. Responses occurred in 6/19 PD-L1 positive patients (32%; 95% CI 15.4-54.0) and 5/24 PD-L1 negative patients (21%; 95% CI 9.2-35.6). Median duration of response was 13.3 months (95% CI 7.6-NE). Median progression-free survival was 3.7 months (95% CI 3.3-9.0). Adverse events (AEs) were consistent with the known safety profile of each drug. AEs leading to withdrawal of either agent occurred in 6 patients (13%). Pronounced expansion and activation of natural killer and CD8 T cells in peripheral blood and increased tumour infiltration and inflammation were observed.
INTERPRETATION:FAP-IL2v plus atezolizumab is clinically active and has manageable safety in patients with recurrent and/or metastatic cervical SCC.
FUNDING:F. Hoffmann-La Roche Ltd.