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. 2024 Jul 22;15(7):521. doi: 10.1038/s41419-024-06894-1

Fig. 2. Antitumor activity of olaparib, onvansertib single agents and their combination in BRCA1 mutated PDX models.

Fig. 2

A Survival curves and log-rank (Mantel–Cox) test in MNHOC#22 bearing mice. Tumor was transplanted intraperitoneally (i.p.) and at day 8 mice were randomized to receive vehicle (-●-), olaparib (100 mg/kg p.o. 5 days a week for 4 weeks, Inline graphic), onvansertib (50 mg/kg p.o. 5 days a week for 4 weeks, Inline graphic) and their combination (Inline graphic). p < 0.0023 onvansertib vs control; p < 0.0001: combo vs control and combo vs onvansertib. B Survival curves and log-rank (Mantel–Cox) test in MNHOC#266 bearing mice. MNHOC#266 PDX was transplanted i.p. and at day 8 mice were randomized to receive vehicle (-●-), olaparib (80 mg/kg p.o. 5 days a week for 4 weeks, Inline graphic), onvansertib (50 mg/kg p.o. 5 days a week for 4 weeks, Inline graphic) and their combination (Inline graphic) p < 0.0001: combo vs olaparib; p < 0.0001: combo vs control; p < 0.0069 combo vs onvansertib. C, D MNHOC#218Ola xenografts were transplanted subcutaneously and grown until masses reached 100–150 mg. Mice were then randomized to receive vehicle (-●-), olaparib (80 mg/kg p.o. 5 days a week for 4 weeks, Inline graphic), onvansertib (30 mg/kg in C or 45 mg/kg in D p.o. 5 days a week for 4 weeks, Inline graphic), and their combination (Inline graphic). Data are the mean ± SEM of tumor masses, as described in Materials and Methods; each group consisted of 8 animals. Gray dashed lines represent treatment duration.