Lower efflux of EGDR by MDR1 and MRP1 transporters under the influence of EDAG-1 was observed in MDA-MB-231 triple-negative breast cancer cells (MAF = 8.1 and 0.5 (MDR1) as well as 5.5 and 4.1 (MRP1) for concentrations of 0.5 and 1 μM, respectively). This evidence concerns the gene ABCB1 and triple-negative breast carcinoma.