Clinical Research Directory

Inclusion Criteria: * \* Adults ≥ 18 years old at the start of study treatment. * New diagnosis of early-stage (Stage I, II, III) esophageal, gastroesophageal junction, or gastric adenocarcinoma, squamous cell carcinoma, or poorly differentiated carcinoma. * Plan to start systemic therapy for resectable or potentially resectable disease. * Ability to understand and the willingness to sign a written informed consent document. Exclusion Criteria: * \* Patients with stage I disease with plans to undergo endoscopic resection or surgery alone without perioperative systemic therapy. * Metastatic disease at the time of diagnosis. * Patients who are unable to provide informed consent. * Any condition that would, in the Investigator's judgment, contraindicate the patient's participation in the clinical study due to safety concerns with clinical study procedures. * Currently participating in another intervention research study seeking to improve functional status, alleviate frailty, increase muscle strength, or improve cognitive function.