| Not Yet Recruiting | Efficacy and Safety of Fruquintinib Combined With Sintilimab and Stereotactic Body Radiation Therapy (SBRT) fo NCT06977061 | Queling Liu | Phase 2 / Phase 3 |
| Recruiting | Total Neoadjuvant FLOT Chemotherapy in Locally Advanced Gastric and Gastroesophageal Junction Cancer NCT06028737 | Ukrainian Society of Clinical Oncology | Phase 2 / Phase 3 |
| Recruiting | Miss Rate of Gastric Neoplasms Under Computer-aided Endoscopy NCT06495645 | The University of Hong Kong | N/A |
| Enrolling By Invitation | Association of Nutritional Status With Immune Checkpoint Inhibitor Efficacy in Metastatic Metastatic Esophagog NCT06923020 | Yongxu Jia | — |
| Recruiting | Comparison of Outcomes of Multiple Platforms for Assisted Robotic - Gastrectomy NCT06362070 | Azienda Ospedaliera Universitaria Integrata Verona | N/A |
| Completed | Single-center, Randomized, Superiority Pivotal Clinical Study to Evaluate the Efficacy of Artificial Intellige NCT06969794 | Chuncheon Sacred Heart Hospital | — |
| Completed | Complete Mesogastric Excision With D2 Lympadenectomy for Gastric Cancer: NCT06281379 | Başakşehir Çam & Sakura City Hospital | N/A |
| Completed | Stomach Cancer Exosome-based Detection NCT06342427 | City of Hope Medical Center | — |
| Recruiting | The Australia and New Zealand Multicentre Upper Gastrointestinal Endoscopic Tissue Resection Study NCT05804331 | Western Sydney Local Health District | — |
| Recruiting | The Correlation Between Blood Concentration of Sintilimab and Efficacy and Adverse Reactions in Patients with NCT06702683 | Lin Liu | — |
| Unknown | Tranexamic Acid During Upper GI Endoscopic Resection Procedures NCT05688020 | Assaf-Harofeh Medical Center | Phase 4 |
| Completed | Learning Curve for Gastric Endoscopic Submucosal Dissection NCT05265221 | Soonchunhyang University Hospital | — |
| Recruiting | Endoscopic Resection of Gastrointestinal Neoplasms NCT04780256 | Azienda USL Reggio Emilia - IRCCS | — |
| Recruiting | Surgery in Gastrointestinal Stromal Tumors (GISTs) for Treatment, Tumor Modeling, and Genomic Analysis NCT04557969 | National Cancer Institute (NCI) | — |
| Unknown | Prevalence of Sub-epithelial Lesions Among Patients Undergoing EGDs in Egypt NCT04622098 | Kafrelsheikh University | — |
| Unknown | Non-curative ESDs: Assessing the Rates and Risk Factors for Residual Neoplasia NCT04484311 | Universidade do Porto | — |
| Unknown | Health and Employment After Gastro Intestinal Surgery - HEAGIS2 NCT04466631 | University of Padova | — |
| Completed | RCT of Gastric ESD With or Without Epineprhine Added Solution NCT04032119 | Chinese University of Hong Kong | Phase 3 |
| Completed | A Study of RGX-202-01 (Ompenaclid) as Combination Therapy in RAS Mutant Advanced Colorectal Cancer NCT03597581 | Inspirna, Inc. | Phase 1 |
| Completed | OPPOSITE: Outcome Prediction of Systemic Treatment in Esophagogastric Carcinoma NCT03429816 | University Hospital Heidelberg | N/A |
| Completed | A Dose-escalation, Expansion Study of ARX788, in Advanced Solid Tumors Subjects With HER2 Expression (ACE-Pan NCT03255070 | Ambrx, Inc. | Phase 1 |
| Unknown | Endoscopic Resection Multicenter Registry NCT03065257 | Weill Medical College of Cornell University | — |
| Completed | Use of Lidocaine in Endoscopic Submucosal Dissection NCT02543411 | Severance Hospital | N/A |
| Completed | The Effect of Perioperative Intravenous Magnesium on Pain After Endoscopic Submucosal Dissection for Gastric N NCT02235246 | Yonsei University | Phase 4 |
| Completed | Trial of S-1 Maintenance Therapy in Metastatic Esophagogastric Cancer NCT02128243 | AIO-Studien-gGmbH | Phase 2 |
| Completed | Preoperative Immunonutrition in Laparoscopic Total D2 Gastrectomy NCT05259488 | University of Rome Tor Vergata | — |
| Completed | Aberrant DNA Methylation to Predict Metachronous Gastric Neoplasms NCT04830618 | Seoul National University Hospital | — |
| Completed | The Role of Early Systematic Best Palliative Care Versus on Request Palliative Care Consultation During Standa NCT01996540 | Istituto Romagnolo per lo Studio dei Tumori Dino Amadori IRST S.r.l. IRCCS | N/A |
| Terminated | Study of Additive Omega-3 Fish Oil to Palliative Chemotherapy to Treat Oesophagogastric Cancer NCT01870791 | University Hospitals, Leicester | Phase 2 |
| Completed | Pain After Endoscopic Submucosal Dissection NCT02254889 | Gangnam Severance Hospital | N/A |
| Completed | Long-term Follow-up Prognosis of Atrophic Gastritis After 3 Years NCT01824953 | Konkuk University Medical Center | — |
| Unknown | A Phase I Study of S-1 Plus Irinotecan and Oxaliplatin in Advanced Gastrointestinal Malignancy NCT00506207 | National Cancer Center, Korea | Phase 1 |
| Completed | A Trial of Neoadjuvant TS-1 and Cisplatin for Type 4 and Large Type 3 Gastric Cancer NCT00252161 | Haruhiko Fukuda | Phase 3 |
| Completed | GCSSG-SPNX: Trial to Evaluate Splenectomy in Total Gastrectomy for Proximal Gastric Carcinoma: JCOG0110 NCT00112099 | Haruhiko Fukuda | Phase 3 |
| Completed | A Trial to Evaluate Para-aortic Lymphadenectomy for Gastric Cancer NCT00149279 | Japan Clinical Oncology Group | Phase 3 |
| Terminated | Randomized Controlled Trial to Evaluate Surgical Approaches to Gastric Cancer Invading the Esophagus (JCOG9502 NCT00149266 | Japan Clinical Oncology Group | Phase 3 |
| Completed | Randomized Trial of Adjuvant Chemotherapy With Cisplatin Followed by UFT in Serosa-positive Gastric Cancer (JC NCT00147147 | Japan Clinical Oncology Group | Phase 3 |