RecruitingPhase 2Drug trialOxaliplatin ± Nivolumab in Combination With Trifluridine/Tipiracil or 5-fluorouracile in Frail Patients With Advanced, Recurrent or Metastatic Gastric, Oesophageal or Gastroesophageal Junction CancerOxaliplatin ± nivolumab in combination with trifluridine/tipiracil or 5-fluorouracile (5-FU) in frail patients with advanced, recurrent or metastatic gastric, oesophageal or gastroesophageal junction cancer.