Objectives: Based upon preclinical data showing synergy with mTOR inhibition and platinum chemotherapy, this study explores the safety and tolerability of combining everolimus with mFOLFOX6 for patients with metastatic gastroesophageal adenocarcinoma.
Methods: Eligible patients with metastatic gastroesophageal adenocarcinoma received standard-dose mFOLFOX6 chemotherapy in combination with escalating doses of everolimus.
Results: Six patients were accrued to the first dose level of 2.5 mg everolimus daily with mFOLFOX6. Overall, the toxicity profile was manageable with expected grade 3 toxicities of mucositis and neutropenia. The dose-limiting toxicity (DLT) included a week delay in therapy greater than 7 days as a result of the first 2 courses of mFOLFOX6. Two patients experienced DLTs at the first dose level due to delays in their treatment caused by prolonged grade 2 neutropenia and fever with fatigue. They were allowed to continue with a dose reduction of their chemotherapy. The median overall survival and progression-free survival were 20.3 and 14.5 months, respectively.
Conclusions: The combination of mFOLFOX6 and everolimus is an active regimen with 83% of the patients experiencing a partial response. p53 mutations were found in the 5 samples analyzed.
© 2016 S. Karger AG, Basel.