piperidines and Cystadenocarcinoma--Serous

To evaluate clinical activity and target modulation of vandetanib in women with recurrent ovarian cancer.. A phase II trial of orally administered vandetanib 300 mg daily was designed to include analyses of target inhibition through paired biopsies and dynamic imaging. Core 18-gauge needle biopsies and dynamic contrast-enhanced magnetic resonance imaging were obtained before initiation of therapy and 6 weeks into therapy. Biopsy samples were subjected to reverse-phase protein lysate array endpoint analysis. Cytokine concentrations were measured by enzyme-linked immunosorbent assay in serially collected plasma samples.. Twelve patients entered the study, and accrual was terminated in the first stage because of lack of response or disease stabilization beyond 6 months. Adverse events included rash, diarrhea, and prolonged QT interval corrected for heart rate, but not hypertension. Exploratory analyses showed that epidermal growth factor receptor (EGFR) phosphorylation was reduced in the eight paired biopsy sets obtained; vascular endothelial growth factor (VEGF) receptor-2 phosphorylation was not consistently affected nor were dynamic contrast-enhanced MRI permeability and flow parameters. Serial plasma VEGF concentrations were variable and did not significantly change in the 11 patients assessed.. Vandetanib 300 mg daily monotherapy had no significant clinical benefit in this disease setting. Proteomic analysis of paired biopsies detected both phosphorylated-EGFR and phosphorylated-VEGF receptor-2 in ovarian tumor tissue, but only phosphorylated-EGFR was measurably inhibited by vandetanib.

Topics: Administration, Oral; Adult; Aged; Antineoplastic Agents; Cystadenocarcinoma, Serous; Drug Administration Schedule; ErbB Receptors; Female; Humans; Middle Aged; Ovarian Neoplasms; Piperidines; Protein Kinase Inhibitors; Quinazolines; Recurrence; Signal Transduction; Treatment Failure; Vascular Endothelial Growth Factor Receptor-2

Ovarian cancer is the second the most common gynaecological malignancy in developed countries. 70% of patients relapse in the first 3 years following debulking surgery and first-line chemotherapy. Niraparib is a poly adenosine diphosphate ribose polymerase inhibitor which uses the concept of synthetic lethality in the presence of a mutation in the breast cancer susceptibility gene (

Topics: Aged; Brain Neoplasms; Cystadenocarcinoma, Serous; Disease-Free Survival; Female; Humans; Indazoles; Maintenance Chemotherapy; Neoplasm Grading; Ovarian Neoplasms; Piperidines; Treatment Outcome

Topics: Cystadenocarcinoma, Serous; Female; Humans; Indazoles; Ovarian Neoplasms; Piperidines; Precision Medicine