Whereas Wu et al. could not observe an effect on the growth of different triple‐negative breast cancer cells (BT549, MDA‐MB‐436, HCC70) at 3 μm BAY‐876, Ma et al. reported inhibition of ovarian cancer growth with an IC50 value up to 60 nm in OVCAR3 cells.37 However, also the ovarian cancer cell line A2780 was resistant towards the treatment with BAY‐876.[37b] This indicates a cell line‐dependent sensitivity towards treatment with the GLUT‐1‐selective inhibitor. Here, SLC2A1 is linked to ovarian carcinoma.