PRIMARY OBJECTIVES:~I. To estimate the overall survival (OS) for patients with advanced gastric and gastroesophageal junction (GEJ) adenocarcinoma treated with MK-2206 (Akt inhibitor MK2206).~SECONDARY OBJECTIVES:~I. To estimate the progression free survival (PFS) in this patient population. II. To estimate the response rate (confirmed and unconfirmed complete response [CR] and partial response [PR] by Response Evaluation Criteria In Solid Tumors [RECIST] 1.1) in this patient population.~III. To assess the frequency and severity of toxicity associated with this regimen.~OUTLINE (CLOSED TO ACCRUAL 05/01/13):~Patients receive Akt inhibitor MK2206 orally (PO) every other day on days 1-28. Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity.~After completion of study therapy, patients are followed up every 3 months for 2 years.
This phase II clinical trial studies how well Akt inhibitor MK2206 works in treating patients with advanced gastric or gastroesophageal junction cancer. Akt inhibitor MK2206 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.