Study to Assess the Safety, Tolerability, Pharmacokinetics (PK) and Preliminary Efficacy of AZD2014

Dose escalation phase: a single dose taken orally (solution or tablet) of AZD2014 on single dose day 1 (visit 2), followed by once or twice daily continuous dosing after a washout period (48 hours - 7 days) at visit 4, until discontinuation or withdrawal or Single or multiple doses taken orally (solution or tablet) of AZD2014 taken intermittently until discontinuation or withdrawal. Expansion phase: twice daily dosing from day 1 until discontinuation or withdrawal or a single dose taken orally of AZD2014 on single dose day 1 (visit 2), followed by a single dose on second single dose day 1 (visit 3) after a washout period (48 hours - 7 days) followed by once or twice daily continuous dosing after a washout period (48 hours - 7 days) at visit 4, until discontinuation or withdrawal or single or multiple doses taken orally (solution or tablet) of AZD2014 taken intermittently until discontinuation or withdrawal.