Opinion statement
Most individuals with gestational trophoblastic neoplasia (GTN) are cured with chemotherapy; however, about 5% of them will develop chemotherapy-resistant disease and will die of disease progression. Most GTN tissues express programmed death ligand-1 (PDL-1), making immune checkpoint inhibitors (ICIs) targeting this pathway an attractive treatment option for individuals with GTN. There is increasing evidence to support the use of ICIs for individuals with recurrent or resistant GTN, but available data are derived from case reports and small single arm trials. As promising as it seems, not all individuals with GTN respond to ICIs, and there is lack of evidence toward which factors mediate the effect of ICIs on GTN. In addition, treatment-related adverse events and impact on future fertility are not negligible and should be considered before initiating this treatment. Therefore, additional research is needed to evaluate treatment outcome of ICIs in GTN compared to standard treatment, and to identify molecular and clinical predictors for treatment response, before this treatment is incorporated into the standard of care.
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Salman, L., Bouchard-Fortier, G. & Covens, A. Immune Checkpoint Inhibitors for the Treatment of Gestational Trophoblastic Neoplasia: Rationale, Effectiveness, and Future Fertility. Curr. Treat. Options in Oncol. 23, 1035–1043 (2022). https://doi.org/10.1007/s11864-022-00988-8
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DOI: https://doi.org/10.1007/s11864-022-00988-8