CP and neoplasm: On the other hand, olaparib showed strongly additive effects in reducing tumor growth when used in combination with cisplatin, while not being very effective as a single agent (olaparib alone 1865.63 ± 93.25 mm3, p = 0.07 vs. CP+Olaparib 641.28 ± 32.05 mm3, p = 0.002) (Fig. 5B).