1. Phase II trial of everolimus in patients with refractory metastatic adenocarcinoma of the esophagus, gastroesophageal junction and stomach: possible role for predictive biomarkers
- Author
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J. Randolph Hecht, Lisa Yonemoto, Brian DiCarlo, Ravi Patel, Diego Martinez, Meghan Brennan, Isett Laux, Heloisa P. Soares, He-Jing Wang, David J. Park, Zev A. Wainberg, and Andre K. D. Liem
- Subjects
Adult ,Male ,Oncology ,Cancer Research ,medicine.medical_specialty ,Esophageal Neoplasms ,Population ,Antineoplastic Agents ,Adenocarcinoma ,Toxicology ,Stomach Neoplasms ,Internal medicine ,Biomarkers, Tumor ,Clinical endpoint ,Humans ,Medicine ,Pharmacology (medical) ,Everolimus ,Neoplasm Metastasis ,Esophagus ,education ,Aged ,Sirolimus ,Pharmacology ,education.field_of_study ,Predictive marker ,business.industry ,Middle Aged ,medicine.disease ,Regimen ,medicine.anatomical_structure ,Biomarker (medicine) ,Female ,Esophagogastric Junction ,business ,medicine.drug - Abstract
Our study was designed to evaluate the efficacy and safety of everolimus in patients with pre-treated metastatic gastric and esophagus cancers in a US-based population focusing on biomarker correlation. Patients with advanced upper GI adenocarcinomas who progressed after 1–2 prior regimens received everolimus 10 mg PO daily. The primary endpoint was disease control rate (DCR). Secondary endpoints included progression-free survival (PFS), toxicity, overall survival (OS) and biomarker correlatives of the mTOR pathway. Target accrual was 50 patients based on one-sided type I error of 10 % and power of 90 %. Forty-five patients were evaluable, 21 gastric, 11 esophagus and 13 from the GEJ. The median age was 64 (range 38–73); all patients had an ECOG of 0 or 1; and 18 patients (40 %) had only 1 prior regimen. The most common grade 3–4 adverse events included fatigue (24 %) and thrombocytopenia (22 %). We observed 1 partial response with 39 % of evaluable patients having stable disease. Median OS was 3.4 months (95 % CI 2.7–5.6 months), and PFS was 1.8 months (95 % CI 1.7–2.2 months). There was a strong correlation between ≥2 + IHC staining for p-S6 in tumor samples with better PFS (p
- Published
- 2015