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Review
. 2010 Oct;37(5):460-7.
doi: 10.1053/j.seminoncol.2010.09.006.

Clinical studies with anti-CTLA-4 antibodies in non-melanoma indications

Luana Calabrò  1 , Riccardo Danielli, Luca Sigalotti, Michele Maio
Affiliations
Review

Clinical studies with anti-CTLA-4 antibodies in non-melanoma indications

Luana Calabrò et al. Semin Oncol. 2010 Oct.

Abstract

Available medical treatments have limited impact on the survival of patients with advanced cancer; therefore, new therapeutic strategies able to generate more effective host's immune responses against neoplastic cells are being actively pursued. Among these, a recent approach involves targeting of cytotoxic T-lymphocyte antigen-4 (CTLA-4), a key immune checkpoint molecule, by monoclonal antibodies (mAbs). Ipilimumab and tremelimumab represent the prototypes of this new class of immunomodulating mAb and have been extensively tested in metastatic melanoma with highly promising results. The clinical activity observed in melanoma has served as a model to exploit the therapeutic potential of CTLA-4 blockade in a variety of human malignancies. Along this line, early-phase trials with anti-CTLA-4 mAbs have been completed or are ongoing in tumors of different histotype. Results are demonstrating the feasibility, safety, and activity of these agents, thus suggesting a promising therapeutic role to be further investigated in phase II/III trials in a wide range of tumors. This review summarizes the main trials with ipilimumab and tremelimumab in tumors of different histotypes, excluding cutaneous melanoma, which is extensively described in other chapters of this issue of Seminars in Oncology.

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