Clinical Research Directory
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Tundra lists 93 Gastroesophageal Junction Adenocarcinoma clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.
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NCT03615326
Pembrolizumab/Placebo Plus Trastuzumab Plus Chemotherapy in Human Epidermal Growth Factor Receptor 2 Positive (HER2+) Advanced Gastric or Gastroesophageal Junction (GEJ) Adenocarcinoma (MK-3475-811/KEYNOTE-811)
The study will compare the efficacy and safety of pembrolizumab plus trastuzumab in combination with standard of care (SOC) chemotherapy versus trastuzumab in combination with SOC chemotherapy in participants with HER2-positive gastric cancer. The primary hypotheses of the study are that pembrolizumab plus trastuzumab in combination with chemotherapy is superior to trastuzumab plus chemotherapy in terms of 1) progression free survival (PFS) per Response Evaluation Criteria in Solid Tumors 1.1 (RECIST 1.1) as assessed by blinded independent central review (BICR), and 2) overall survival (OS).
Gender: All
Ages: 18 Years - Any
Updated: 2026-08-26
93 states
NCT07043400
A Study to Investigate Tislelizumab Administered as Subcutaneous Injection Versus Intravenous Infusion Plus Chemotherapy in Patients With Unresectable or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma
This study is designed to assess the levels of drug exposure following treatment with tislelizumab administered as a subcutaneous (SC) injection compared to intravenous infusion (IV) as first-line therapy in adults with gastric or gastroesophageal junction (GEJ) that is locally advanced and cannot be surgically removed or has spread from the stomach to other areas of the body. Approximately 351 patients will be participating in this study. The study is composed of a screening period, a treatment period, and a follow-up period.
Gender: All
Ages: 18 Years - Any
Updated: 2026-08-24
37 states
NCT03604991
Nivolumab and Ipilimumab in Treating Patients With Esophageal and Gastroesophageal Junction Adenocarcinoma Undergoing Surgery
This phase II/III trial studies the usefulness of treatment with nivolumab and ipilimumab in addition to standard of care chemotherapy and radiation therapy in patients with esophageal and gastroesophageal junction adenocarcinoma who are undergoing surgery. Immunotherapy with antibodies, such as nivolumab and ipilimumab, may remove the brake on the body's immune system and may interfere with the ability of tumor cells to grow and spread. Chemotherapy and radiation therapy may reduce the tumor size and the amount of normal tissue that needs to be removed during surgery. A combined treatment with nivolumab and ipilimumab, chemotherapy, and radiation therapy might be more effective in patients with esophageal and gastroesophageal junction adenocarcinoma who are undergoing surgery.
Gender: All
Ages: 18 Years - Any
Updated: 2026-08-24
47 states
NCT07776639
Iparomlimab and Tuvonralimab Injection (QL1706) Combined With DOS as Neoadjuvant Therapy for Locally Advanced Adenocarcinoma of the Stomach and Gastroesophageal Junction
This is a single-center, prospective, exploratory clinical study. Eligible patients will be enrolled and receive iapalolimab combined with DOS regimen (docetaxel + oxaliplatin + tegafur-gimeracil-oteracil potassium). The study aims to further explore the efficacy and safety of iapalolimab plus DOS regimen for locally advanced gastric or gastroesophageal junction adenocarcinoma. A total of 34 patients with locally advanced gastric or gastroesophageal junction adenocarcinoma will be enrolled. Each treatment cycle lasts 21 days. After 3-4 cycles, patients who are assessed as operable by investigators will undergo surgical resection, and postoperative pathological results will be evaluated. The primary outcome measure is the pathological complete response rate. Investigators will determine subsequent treatment regimens based on patients' pathological findings and routine clinical practice at the study center. Radiological assessment of tumor response is recommended every 2 cycles.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-08-20
1 state
NCT05203627
Telehealth for the Self-Management of Dietary Quality of Life in Patients After Stomach Cancer Surgery
This clinical trial test whether taking part in a diet support intervention will help with patients nutrition and quality of life after surgery for esophagus or stomach cancer. The information learned by doing this research study may help patients get more information and/or support on eating after esophagus and stomach cancer surgery.
Gender: All
Ages: 21 Years - Any
Updated: 2026-08-19
1 state
NCT07001748
Testing the Addition of Paclitaxel Administered Into the Abdominal Cavity Combined With Chemotherapy for Patients With Gastric Cancer Spread to the Abdominal Cavity
This study is being done to answer the following questions: Can we lower the chance of your gastric cancer from growing or spreading by administering paclitaxel chemotherapy directly into your abdominal cavity in addition to chemotherapy given through a vein in your arm? Will administering paclitaxel chemotherapy directly into your abdominal cavity, in addition to chemotherapy given through a vein in your arm help you live longer? We are doing this study because we want to find out if this approach is better or worse than the usual approach for your gastric cancer. The usual approach is defined as care most people get for gastric cancer. If you decide to take part in this study, you will first receive a surgical procedure called a diagnostic laparoscopy. This will help the study doctors learn more about your gastric cancer. Laparoscopy is a minimally invasive surgery for which you will be placed under general anesthesia. Then the surgeon will make small incisions (5mm) on your belly through which a camera and thin instruments are introduced to evaluate the abdomen. This procedure takes about 1 hour to complete. Your study group will be assigned during the surgery. The study groups are described further in the 'What are the study groups?' section below. If you are placed into the study group 1, you will not have an intraperitoneal port (a small device which is placed under the skin and fat of your upper abdomen and a tube that is placed into the abdomen). If you are placed into the study group 2, you will have an intraperitoneal port placed. The reason is that in addition to standard chemotherapy, which is given through a vein in your arm, this port will be used to deliver the medication paclitaxel directly inside your abdomen when you are ready to start study treatment. It is important to know that you will not know your study group until after the surgery is over. This is because information that is learned during the surgery will help determine which study group you are put in. Once you have fully healed from this surgery, you will start study treatment. Depending on which study group you are assigned, you will either receive a standard chemotherapy regimen (the regimen will be chosen by you and your doctor) if you are in study group 1, or paclitaxel through a tube in your belly plus chemotherapy given through a vein in your arm if you are in study group 2. All participants will get treatment for three (3) months after which you will undergo reevaluation. If the disease is under control or responding to treatment, you may continue the assigned treatment until your disease gets worse, the side effects become too severe, or you may be offered a surgical procedure to remove the cancer if the amount of disease is low and can be completely removed as determined by a surgeon. There is a very small chance that during the laparoscopy surgical procedure, the doctor might find something called "intra-abdominal adhesions". These are areas where the stomach has healed previously and created scar tissue. If this scar tissue prevents the surgeon from being able to place a port in the correct area, you would be ineligible to receive the study treatment. If this happens, you may still receive standard of care therapy after your surgery, but you will not be able to continue on the study. If you have more questions about this, you can ask your surgeon or the study team to help. After you finish your study treatment, your doctor or study team will watch you for side effects. They will continue to follow your condition every three (3) months during the first two (2) years, then every six (6) months until year 5. You may be reevaluated with Chest/Abdomen/Pelvis scans every three-six (3-6) months for up to five (5) years if decided by your doctor.
Gender: All
Ages: 18 Years - Any
Updated: 2026-08-19
25 states
NCT06792435
XNW27011 Study of Advanced Solid Tumor Subjects Who Failed Standard Therapies.
This is a global, multi-center, open-label, Phase I/II first-in-human study of XNW27011 monotherapy as an investigational product (IP) in patients with locally advanced and/or metastatic solid tumors who have failed or are intolerant to standard therapies. XNW27011 is an antibody-drug conjugate (ADC) targeting Claudin 18.2 (CLDN18.2), a transmembrane protein important to tight junctions. The study consists of 2 parts: Part 1 is the dose-escalation phase (Phase I), and Part 2 is the does-expansion phase (Phase II). In phase I part of the study, approximately 42 patients with locally advanced and/or metastatic solid tumors will be enrolled, irrespective of CLDN18.2 expression. However, the most recently available tumor tissue specimen will be collected (if available) for a retrospective CLDN18.2 expression confirmation. In phase II part of the study, only patients with confirmed CLDN18.2 expression by IHC in the central laboratory will be enrolled.The phase II part of the study will consist of the following four groups,Up to three dose cohorts for each patient group are planned currently. Each dose cohort will include approximately 20 patients. Approximately 240 patients evaluable will be enrolled in Phase Ⅱ part of the study.
Gender: All
Ages: 18 Years - Any
Updated: 2026-08-11
1 state
NCT06324357
Beamion BCGC-1: A Study to Find a Suitable Dose of Zongertinib Used Alone and in Combination With Other Treatments to Test Whether it Helps People With Different Types of HER2+ Cancer That Has Spread
This study is open to adults aged 18 years and older with different types of HER2+ cancer that has spread and cannot be removed by surgery. People can take part in this study if their tumours show HER2 aberrations and previous treatment was not successful. The purpose of this study is to find a suitable dose of zongertinib that people with different types of HER2+ cancer that has spread can tolerate best when taken together with trastuzumab deruxtecan (T-DXd), with trastuzumab emtansine (T-DM1), with trastuzumab and capecitabine, with zanidatamab, or with mFOLFOX6 (with or without trastuzumab). Another purpose is to check whether zongertinib alone and in combination with other treatments can make tumours shrink. Zongertinib inhibits HER2. HER2 causes cancer cells to grow. In this study, participants receive treatment in cycles. Study participants are treated with zongertinib alone or in combination with other treatments. This study has 2 parts. In Part 1, participants in different groups receive increasing doses of zongertinib. In Part 2, participants are put into different groups by chance. Each group receives a different dose of zongertinib. Every participant has an equal chance of being in each group. During the study, the participants visit the study site regularly. In this study, researchers want to find the highest dose of zongertinib that participants can tolerate when taken together with other treatments. To find this out, researchers look at certain severe health problems that a number of participants have. The doctors regularly check the size of the tumour with imaging methods (CT/MRI) during the study. The doctors also regularly check participants' health and take note of any unwanted effects.
Gender: All
Ages: 18 Years - Any
Updated: 2026-08-06
15 states
NCT05334069
Collecting Blood Samples From Patients With and Without Cancer to Evaluate Tests for Early Cancer Detection
This study collects blood and tissue samples from patients with cancer and without cancer to evaluate tests for early cancer detection. Collecting and storing samples of blood and tissue from patients with and without cancer to study in the laboratory may help researchers develop tests for the early detection of cancers.
Gender: All
Ages: 40 Years - 75 Years
Updated: 2026-08-05
45 states
NCT05476796
Oxaliplatin ± Nivolumab in Combination With Trifluridine/Tipiracil or 5-fluorouracile in Frail Patients With Advanced, Recurrent or Metastatic Gastric, Oesophageal or Gastroesophageal Junction Cancer
Oxaliplatin ± 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.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-24
NCT04615013
NBTXR3, Chemotherapy, and Radiation Therapy for the Treatment of Esophageal Cancer
The purpose of this Phase I study is to determine the recommended phase 2 dose (RP2D) and safety profile of NBTXR3 activated by radiation therapy with concurrent chemotherapy for the treatment of patients with esophageal adenocarcinoma. NBTXR3 is a drug that when activated by radiation therapy, may cause targeted destruction of cancer cells. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Chemotherapy drugs, such as oxaliplatin, fluorouracil, capecitabine, docetaxel, paclitaxel, and carboplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving NBTXR3 activated by radiation therapy with concurrent chemotherapy may help control the disease.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-24
1 state
NCT06131840
A Study of SGN-CEACAM5C in Adults With Advanced Solid Tumors
This clinical trial is studying advanced solid tumors. Solid tumors are cancers that start in a part of your body like your lungs or liver instead of your blood. Once tumors have grown bigger in one place but haven't spread, they're called locally advanced. If your cancer has spread to other parts of your body, it's called metastatic. When a cancer has gotten so big it can't easily be removed or has spread to other parts of the body, it is called unresectable. These types of cancer are harder to treat. Participants in this study must have cancer that has come back or did not get better with treatment. Participants must have a solid tumor cancer that can't be treated with standard of care drugs. This clinical trial uses an experimental drug called PF-08046050. PF-08046050 is a type of antibody-drug conjugate or ADC. ADCs are designed to stick to cancer cells and kill them. They may also stick to some normal cells. This study will test the safety of PF-08046050 in participants with solid tumors that are hard to treat or have spread throughout the body. This study has 5 different study parts. Part A and Part B of the study will find out how much PF-08046050 should be given to participants. Part C will use the information from Parts A and B to see if PF-08046050 is safe and if it works to treat certain solid tumor cancers. Part D and E of the study, together with information from Parts A and B, will find out how much PF-08046050 should be given in combination with other anti-cancer agents. Part E will use the information from Parts A, B, and D to see if PF-08046050 is safe in combination with other anti-cancer agents and if it works to treat a certain solid tumor.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-22
21 states
NCT06157892
A Study of Disitamab Vedotin With Other Anticancer Drugs in Solid Tumors
This clinical trial is studying solid tumor cancers. A solid tumor is one that starts in part of your body like your lungs or liver instead of your blood. Once they've grown bigger in one spot or spread to other parts of the body, they're harder to treat. This is called advanced or metastatic cancer. Participants in this study must have breast cancer or gastric cancer. Participants must have tumors that have HER2 on them. This allows the cancer to grow more quickly or spread faster. There are few treatment options for patients with advanced or metastatic solid tumors that express HER2. This clinical trial uses an experimental drug called disitamab vedotin (DV). Disitamab vedotin is a type of antibody drug conjugate or ADC. ADCs are designed to stick to cancer cells and kill them. This clinical trial uses a drug called tucatinib, which has been approved to treat cancer in the United States and some other countries. This drug is sold under the brand name TUKYSA®. This study will test how safe and how well DV with tucatinib works for participants with solid tumors. This study will also test what side effects happen when participants take these drugs. A side effect is anything a drug does to the body besides treating the disease.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-22
31 states
NCT06243757
A Study of Minimally Invasive Proximal Gastrectomy Versus Minimally Invasive Total Gastrectomy for Gastric and Gastroesophageal Junction Cancers
Participants will a diagnosis of gastroesophageal junction (GEJ) adenocarcinoma and will have either a minimally invasive proximal gastrectomy (MIPG) or a minimally invasive total gastrectomy (MITG) as part of their routine care. Participants with complete a questionnaire 1 month before the surgical procedure and then 1, 3, 6 and 12 months after the surgical procedure.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-22
3 states
NCT07090499
A Study to Learn About the Study Medicine Called PF-08046876 in People With Advanced Solid Tumors
The purpose of the study is to explore the safety and effects of the study drug (PF-08046876) in people diagnosed with advanced cancer of the bladder, lung, head and neck, esophagus, or pancreas. PF-08046876 is an investigational anticancer therapy called an 'antibody drug conjugate' or 'ADC'. ADCs are anticancer drugs designed to stick to cancer cells and kill them. The study drug will be given to participants through a needle in a vein (intravenous infusion). This study includes multiple parts. In the first part of the study, there will be different groups of people receiving different doses of the study drug. The study may also test different schedules.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-22
9 states
NCT06628310
A Study to Evaluate the Adverse Events, Efficacy, and Optimal Dose of Intravenous (IV) ABBV-400 in Combination With IV Fluorouracil, Leucovorin, and Budigalimab in Adult Participants With Locally Advanced Unresectable or Metastatic Gastric, Gastroesophageal Junction, or Esophageal Adenocarcinoma
Cancer is a condition where cells in a specific part of body grow and reproduce uncontrollably. The purpose of this study is to assess adverse events and change in disease activity when telisotuzumab adizutecan (ABBV-400) is given in combination with Fluorouracil, Leucovorin, and a programmed cell death receptor 1 (PD1) inhibitor Budigalimab. The combination (AFLB) will be given to adult participants to treat locally advanced unresectable or metastatic gastric, gastroesophageal junction, or esophageal adenocarcinoma (mGEA). Telisotuzumab Adizutecan (ABBV-400) and Budigalimab are investigational drugs being developed for the treatment of mGEA. Fluorouracil and Leucovorin are drugs approved for the treatment of mGEA. This study will be divided into two stages, with the first stage treating participants with increasing doses of ABBV-400 within the AFLB regimen until the dose reached is tolerable and expected to be efficacious. Participants will then be randomized into groups called treatment arms where one group will receive Budigalimab and FOLFOX (Fluorouracil, Leucovorin, and Oxaliplatin) . A further two treatment groups will receive AFLB, but with two optimized doses of ABBV-400 to allow for the best dose to be studied in the future. Approximately 180 adult participants with mGEA will be enrolled in the study in 51 sites worldwide. In the dose escalation stage, participants will be treated with increasing intravenous (IV) doses of telisotuzumab adizutecan (ABBV-400) within the AFLB regimen until the dose reached is tolerable and expected to be efficacious. In the dose optimization stage, participants will receive FOLFOX or receive AFLB, but with one of two optimized doses of ABBV-400. The study will run for a duration of approximately 6 years. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at an approved institution (hospital or clinic). The effect of the treatment will be frequently checked by medical assessments, blood tests, questionnaires and side effects.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-21
29 states
NCT05111626
Bemarituzumab Plus Chemotherapy and Nivolumab Versus Chemotherapy and Nivolumab for FGFR2b Overexpressed Untreated Advanced Gastric and Gastroesophageal Junction Cancer.
The main objective of Part 1 is to evaluate the safety and tolerability of bemarituzumab plus 5-fluorouracil, leucovorin, and oxaliplatin (mFOLFOX6) and nivolumab. The main objective Part 2 is to compare efficacy of bemarituzumab plus chemotherapy (mFOLFOX6 or capecitabine combined with oxaliplatin (CAPOX)) and nivolumab to placebo plus chemotherapy (mFOLFOX6 or CAPOX) and nivolumab as assessed by overall survival.
Gender: All
Ages: 18 Years - 100 Years
Updated: 2026-07-17
90 states
NCT06047379
Safety and Efficacy of NEO212 in Patients With Astrocytoma IDH-mutant, Glioblastoma IDH-wildtype or Brain Metastasis
This multi-site, Phase 1/2 clinical trial is an open-label study to identify the safety, pharmacokinetics, and efficacy of a repeated dose regimen of NEO212 alone for the treatment of patients with radiographically-confirmed progression of Astrocytoma IDH- mutant, Glioblastoma IDH-wildtype, and the safety, pharmacokinetics and efficacy of a repeated dose regimen of NEO212 when given with select SOC for the treatment of solid tumor patients with radiographically confirmed uncontrolled metastases to the brain. The study will have three phases, Phase 1, Phase 2a and Phase 2b.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-16
5 states
NCT04661150
A Study of Atezolizumab and Trastuzumab in Combination With Capecitabine and Oxaliplatin in Patients With HER2 Positive Locally Advanced Resectable Gastric Cancer of Adenocarcinoma of Gastroesophageal Junction
This is a phase II, multicenter, randomized, open-label study designed to evaluate the efficacy and safety of perioperative trastuzumab+XELOX with / without atezolizumab in participants eligible for surgery with locally advanced HER2-positive gastric cancer or adenocarcinoma of GEJ.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-07-15
NCT07701681
Sacituzumab Tirumotecan (Sac-TMT/SKB264) Plus Tagitanlimab (KL-A167) in Patients With Recurrent or Metastatic Esophageal Squamous Cell Carcinoma and Gastric/Gastroesophageal Junction Adenocarcinoma
This is a single-arm, multi-center phase II study to evaluate the efficacy and safety of sacituzumab tirumotecan (Sac-TMT/SKB264) combined with tagitanlimab (KL-A167) as 2nd line therapy for recurrent or metastatic esophageal squamous cell carcinoma (ESCC) or gastric/gastroesophageal junction adenocarcinoma (G/GEJA). A total of 75 participants are planned to be enrolled with 10 in the safety lead-in phase and 33 ESCC and 42 G/GEJA in expansion phase, seperately.
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-14
1 state
NCT07689851
Chemoradiotherapy and SHR-1701 in Patients With Unresectable Gastric Cancer
Gastric Cancer is one of the leading causes of cancer-related death worldwide, and patients with unresectable locally advanced or metastatic disease have a poor prognosis. This study aims to evaluate the safety and efficacy of radiotherapy combined with CAPOX and SHR-1701, a PD-L1/TGF-β bispecific antibody, in patients with unresectable locally advanced or metastatic gastric or gastroesophageal junction adenocarcinoma. By improving local tumor control and enhancing systemic antitumor activity, this study seeks to increase the opportunity for curative-intent resection and improve survival outcomes in patients with advance gastric cancer.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-07-08
2 states
NCT07518147
A Study Comparing BL-M05D1 With the Investigator's Choice of Treatment Regimen in Patients With Claudin (CLDN)18.2-Positive Advanced Gastric Cancer or Gastroesophageal Junction Adenocarcinoma (GC/GEJC) Who Have Received Prior First-Line Treatment
This trial is a registrational Phase III, randomized, open-label, multicenter study to evaluate the efficacy and safety of BL-M05D1 in patients with Claudin (CLDN) 18.2-positive advanced gastric cancer or gastroesophageal junction adenocarcinoma (GC/GEJC) who have received prior first-line treatment.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-07-08
1 state
NCT07621484
HIPEC Priming Followed by Serplulimab Plus SOX/XELOX in Locally Advanced Gastric Cancer
Patients with locally advanced gastric cancer (LAGC), particularly those with serosal invasion, remain at high risk of peritoneal recurrence despite standard perioperative treatment. Hyperthermic intraperitoneal chemotherapy (HIPEC) may eradicate free intraperitoneal tumor cells and microscopic peritoneal disease while potentially enhancing systemic anti-tumor immune activation. This is a prospective, single-center, single-arm exploratory study evaluating a HIPEC priming strategy followed by serplulimab-based neoadjuvant therapy in patients with locally advanced gastric cancer (cT3-4aN+M0). Eligible patients will undergo diagnostic laparoscopy confirming no visible peritoneal metastasis (P0) and negative peritoneal cytology (CY0), followed by docetaxel-based HIPEC. After recovery from HIPEC, patients will initially receive one cycle of serplulimab combined with fluoropyrimidine monotherapy (S-1 or capecitabine), followed by subsequent cycles of serplulimab combined with SOX/XELOX chemotherapy prior to radical gastrectomy. The primary endpoints are pathological complete response (pCR) rate and major pathological response (MPR) rate. Secondary endpoints include R0 resection rate, objective response rate (ORR), peritoneal recurrence-free survival (PRFS), overall survival (OS), and safety.
Gender: All
Ages: 18 Years - 75 Years
Updated: 2026-07-07
NCT04375605
Neoadjuvant RCT Versus CT for Patients With Locally Advanced, Potentially Resectable Adenocarcinoma of the GEJ
This is a multicenter, prospective, randomized, stratified, controlled, open-label study comparing neoadjuvant radiochemotherapy with FLOT versus FLOT chemotherapy alone für patients with locally advanced, potentially resectable adenocarcinoma of the gastroesophageal junction (GEJ)
Gender: All
Ages: 18 Years - Any
Updated: 2026-07-07