FLOT vs. FLOT/Ramucirumab for Perioperative Therapy of Gastric or GEJ Cancer (RAMSES)

Inclusion criteria

• . Histologically confirmed, resectable adenocarcinoma of the gastroesophageal junction (AEG/GEJ-type II-III) or the stomach (uT2, uT3, uT4, any N category, M0), or any T N+ M0 patient, with the following specifications:
• . Medical and technical operability, according to the techniques described in Chapter 12 Surgical Therapy that are subtotal, total or transhiatal extended gastrectomy (patients planned to receive transthoracic esophagectomy are not eligible for the study)
• . Participating sites in PETRARCA study: Negative HER-2 detection (score IHC HER-2 0 or IHC HER-2 1+ ); IHC HER-2 2+ and negative by FISH, SISH or CISH1
• . No preceding cytotoxic or targeted therapy
• . No prior partial or complete tumor resection
• . Female and male patients ≥ 18 and ≤ 70 years. Patients in reproductive age must be willing to use adequate contraception during the study and for 7 months after the end of ramucirumab treatment (Appropriate contraception is defined as surgical sterilization (e.g., bilateral tubal ligation, vasectomy), hormonal contraception (implantable, patch, oral), and double-barrier methods (any double combination of: IUD, male or female condom with spermicidal gel, diaphragm, sponge, cervical cap)). Female patients with childbearing potential need to have a negative pregnancy test within 7 days before study start.