Pharmacokinetic Interaction Between Olaparib and Regorafenib in an Animal Model.

Background: Olaparib (OLA) and regorafenib (REG) are metabolized by the CYP3A4 isoenzyme of cytochrome P450. Both drugs are also substrates and inhibitors of the membrane transporters P-glycoprotein and BCRP. Therefore, the potential concomitant use of OLA and REG may result in clinically relevant drug-drug interactions.

A retrospective analysis of haematological side effects of olaparib in excess-weight and normal BMI patients with ovarian cancer.

Background: Olaparib is the first poly(ADP-ribose) polymerase inhibitor approved in Europe for the treatment of platinum-sensitive patients with newly diagnosed or recurrent platinum-sensitive ovarian cancer with a confirmed BRCA mutation or homologous recombination deficiency (HRD). Epidemiological studies have shown an incompatible association between ovarian cancer and obesity, but there have also been scientific reports indicating that obesity, especially severe obesity, increases the risk of ovarian cancer. Olaparib has a wide range of side effects, especially anaemia and neutropenia, which may lead to dose reduction or therapy discontinuation.

Bidirectional pharmacokinetic drug interactions between olaparib and metformin.

Objective: Olaparib is a PARP (poly-ADP-ribose polymerase) inhibitor used for maintenance therapy in BRCA-mutated cancers. Metformin is a first-choice drug used in the treatment of type 2 diabetes. Both drugs are commonly co-administered to oncologic patients with add-on type 2 diabetes mellitus.

The use of Ctrough for the therapeutic drug monitoring of olaparib in patients with ovarian cancer.

Objective: Olaparib is the poly-[Adenosine diphosphate ribose (ADP-ribose)] polymerase inhibitor (PARPI) used in maintenance therapy of patients with platinum-sensitive ovarian cancer with mutations in breast cancer genes 1/2 (BRCA1/2). Oncologists still do not have recommendations of treatment depending on efficient plasma concentrations of the PARP inhibitor. The aim of the study was the assessment of plasma trough concentrations of olaparib at steady state (Ctrough) in ovarian cancer patients.

Metformin in selected malignancies in women.

The results of preclinical, epidemiological and clinical studies have shown that metformin, the main drug used in the treatment of type 2 diabetes, has antitumor activity. Metformin reduces the incidence of malignant neoplasms in various locations, including gynaecological tumours. It lowers morbidity, has a positive effect on the course of the disease and reduces mortality.