In subcutaneous xenografts of two aggressive KRAS -mutant cell lines, AsPC-1 and Panc-1, we determined that trametinib not only inhibited tumor growth as a monotherapy, but it also demonstrated a trend for an additive effect in combination with chemotherapy regimens, although it did not reach statistical significance (Figures 1 , 2 ).
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Inhibition of the MEK/ERK pathway augments nab-paclitaxel-based chemotherapy effects in preclinical models of pancreatic cancer.
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The sentences
The addition of trametinib to chemotherapy regimens showed a trend for an additive effect on tumor growth inhibition in subcutaneous AsPC-1 and Panc-1 PDAC xenografts.