The study will simultaneously enrol patients to the following two groups. Group A (intensive PK) will enrol 10 evaluable patients for an intra-patient evaluation of the impact of paclitaxel on exposure to AZD2014, and the impact of AZD2014 on exposure to paclitaxel via intensive PK sampling and non-compartmental PK analysis techniques (NCA). Group B (sparse PK) will enrol 30 patients and sparse sampling and population PK modelling techniques will be employed to estimate exposure to AZD2014 when administered in combination with a weekly paclitaxel dosing regimen. The efficacy and safety of the AZD2014 and weekly paclitaxel combination will be evaluated in all 40 patients using RECIST 1.1, observation of AEs/SAEs and use of conventional safety parameters.