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. 2025 Jan:214:115161.
doi: 10.1016/j.ejca.2024.115161. Epub 2024 Nov 30.

Treatment sequence with tebentafusp and immune checkpoint inhibitors in patients with metastatic uveal melanoma and metastatic GNA11/GNAQ mutant melanocytic tumors

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Free article

Treatment sequence with tebentafusp and immune checkpoint inhibitors in patients with metastatic uveal melanoma and metastatic GNA11/GNAQ mutant melanocytic tumors

Florentia Dimitriou et al. Eur J Cancer. 2025 Jan.
Free article

Abstract

Background: Metastatic uveal melanoma (mUM) is rare. Immune checkpoint inhibitors (ICIs) have shown modest efficacy in mUM. Tebentafusp prolonged overall survival (OS) in a phase 3 study. We aimed to investigate the efficacy and safety of the sequence of tebentafusp and ICIs.

Methods: Patients with HLA-A * 02:01 positive mUM, or metastatic GNA11/GNAQ mutant melanocytic tumors treated with tebentafusp followed by ICIs (group 1) or the inverse sequence (group 2) at any treatment line were retrospectively identified. The primary objective was OS rate at 2 years.

Results: 131 patients were included; 51 in group 1 and 80 in group 2. 30 % in group 1 % and 40 % in group 2 had normal baseline lactate dehydrogenase (LDH, p = 0.05). 94 % in group 1 % and 77 % in group 2 had multilobular liver disease (p = 0.02). Median OS was 22.4 months (95 % CI 19-24.8) in group 1 and 33.6 months (95 % CI 28.9-43) in group 2 (p = 0.004). Total median PFS was 12 months (95 % CI 10.7-18.8) in group 1 and 20.3 months (95 % CI 17.2-27.3) in group 2 (p = 0.04). The frequency of cytokine release syndrome was higher in group 2 (15 % vs 27 %). Other clinical factors were associated with short total PFS in the multivariable analysis.

Conclusions: Both treatment sequences are clinically feasible. A clinical benefit was noted in the sequential combination of ICIs followed by tebentafusp. This observation is limited by the retrospective nature of the study and merits further investigation in prospective clinical trials.

Keywords: GNA11; GNAQ; Immune checkpoint inhibitors; Tebentafusp; Uveal melanoma.

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Conflict of interest statement

Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: FD receives/received honoraria and travel support from Merck Sharp & Dohme, Bristol Myers Squibb, Pierre Fabre and Sun Pharma. EKH reports: advisory role; Novartis, MSD; speaker´s Bureau: Novartis, MSD; research Funding: funding paid to Dr. Koch Hein Institution for support of a melanoma registry in Chile; travel, accommodations, expenses: Pfizer, Novartis, Roche Pharma AG. CGM receives/received honoraria for lectures/advisory board and travel support from Pierre Fabre, BMS, MSD. GVL is consultant advisor for Agenus, Amgen, Array Biopharma, AstraZeneca, Bayer, BioNTech, Boehringer Ingelheim, Bristol Myers Squibb, Evaxion, Hexal AG (Sandoz Company), Highlight Therapeutics S.L., IOBiotech, Immunocore, Innovent Biologics USA, Merck Sharpe & Dohme, Novartis, PHMR Ltd, Pierre Fabre, Regeneron, Scancell, SkylineDX B.V. O.M. has consulting/advisory roles for Bristol Myers Squibb, MSD, Roche, Novartis, Amgen, Pierre Fabre, and Neracare; has received research grants from Bristol Myers Squibb, MSD, and Amgen; is a consultant advisor or a paid speaker for Bristol Myers Squibb, MSD, Novartis, Pierre Fabre, Amgen, and Nektar; has received research funding from Bristol Myers Squibb and Pierre Fabre; and is the cofounder of a cell therapy company called Cellula. DBJ has served on advisory boards or as a consultant for BMS, Catalyst Biopharma, Iovance, The Jackson Laboratory, Mallinckrodt, Merck, Mosaic ImmunoEngineering, Novartis, Oncosec, Pfizer, Targovax, and Teiko, and has received research funding from BMS and Incyte. EK has consultancy/advisory relationships with Bristol Myers Squibb, Novartis, Pierre Fabre, Immunocore and Lilly, and received research grants from Bristol Myers Squibb, Delcath, Novartis and Pierre-Fabre. Not related to current work and paid to institute. AMJ has received research funding (institution) from Immunocore, Merck Sharp and Dohme, Bristol Myers Squibb. RD declares financial interests from Novartis, Merck Sharp & Dhome (MSD), Bristol-Myers Squibb (BMS), Roche, Amgen, Takeda, Pierre Fabre, Sun Pharma, Sanofi, Catalym, Second Genome, Regeneron, Alligator, T3 Pharma, MaxiVAX SA, Pfizer, Simcere and touchIME. All other authors have declared no conflicts of interest.

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