BACKGROUND:

 

The oral, potent poly(ADP-ribose) polymerase (PARP) inhibitor, olaparib, is well tolerated at doses of ≤400 mg twice daily (BID) (administered as capsules), and has shown efficacy in patients with advanced BRCA-mutated ovarian and breast cancer.

 

METHODS:

 

This Phase I, open-label, randomized trial investigates the effect of food on the pharmacokinetics of olaparib in patients with refractory/resistant advanced solid tumors. In Part A, a three-period crossover study, patients received a single oral dose of olaparib 400 mg (8 × 50 mg capsules) in three prandial states: fasted, a high-fat meal or a standard meal (with a 5-14 day washout). Blood samples for pharmacokinetic (PK) assessments were taken pre-dose and up to 72 h post-dose. After completing Part A, patients could enter Part B, where they would receive olaparib 400 mg BID.

 

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