NON RARE IN EUROPE: Adenocarcinoma of stomach

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1FDA treatments45Active trials8Treatment centers

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UniteRare data is sourced from FDA.gov, ClinicalTrials.gov, Orphanet, OMIM, and NORD.
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Overview

Stomach adenocarcinoma, also called gastric adenocarcinoma or stomach cancer, is a type of cancer that starts in the cells lining the inside of the stomach. It is the most common form of stomach cancer, making up about 90-95% of all stomach cancers. The cancer begins when normal stomach lining cells grow out of control and form a tumor. Over time, the tumor can grow through the stomach wall and spread to nearby organs, lymph nodes, or other parts of the body. In the early stages, stomach adenocarcinoma often causes no symptoms at all, which makes it hard to catch early. As the cancer grows, people may notice stomach pain or discomfort, feeling full quickly after eating, nausea, unexplained weight loss, or difficulty swallowing. Some people develop bleeding in the stomach, which can cause dark or tarry stools or vomiting blood. Treatment depends on how advanced the cancer is. Options include surgery to remove part or all of the stomach, chemotherapy, radiation therapy, targeted drug therapies, and immunotherapy. When caught early, the cancer can sometimes be cured. Unfortunately, many cases are found at a later stage, when treatment focuses on controlling the cancer and improving quality of life. Research into new treatments is ongoing, and options have improved significantly in recent years.

Also known as:

Key symptoms:

Stomach pain or discomfort, especially in the upper abdomenFeeling full very quickly after eating only a small amountUnexplained weight lossNausea or vomitingLoss of appetiteDifficulty swallowingHeartburn or indigestion that does not go awayBloating after mealsDark, tarry, or bloody stoolsVomiting blood or material that looks like coffee groundsFatigue and weaknessSwelling or fluid buildup in the abdomenAnemia (low red blood cell count) causing tiredness and paleness

Inheritance

Multifactorial

Caused by a mix of several genes and environmental factors

Age of Onset

Adult

Begins in adulthood (age 18 or older)

Orphanet ↗NORD ↗

FDA & Trial Timeline

10 events
Apr 2026QLS5132 Combination Therapy in Advanced Solid Tumors

Qilu Pharmaceutical Co., Ltd. — PHASE1, PHASE2

TrialNOT YET RECRUITING
Feb 2026Sonesitatug Vedotin in Combination With Capecitabine With or Without Rilvegostomig in Participants With Advanced or Metastatic Gastric, Gastroesophageal Junction, or Esophageal Adenocarcinoma Expressing Claudin18.2

AstraZeneca — PHASE3

TrialRECRUITING
Feb 2026A First-In-Human Phase I/IIa Study to Evaluate DA 3501 in Patients With Advanced Gastric or Gastro-esophageal Junction Adenocarcinoma and Pancreatic Ductal Adenocarcinoma

Dong-A ST Co., Ltd. — PHASE1

TrialNOT YET RECRUITING
Feb 2026Local Treatment Strategies for Brain Metastases of Gastric and Esophageal Cancer

Blokhin's Russian Cancer Research Center

TrialACTIVE NOT RECRUITING
Jan 2026Adebrelimab Combined With Induction Chemotherapy or SHR-8068 for Mismatch Repair-Deficient/Microsatellite Instability-High (dMMR/MSI-H) Locally Advanced Gastric/Gastroesophageal Junction Adenocarcinoma:A Randomized, Non-comparative Phase 2 Study

Shanghai Zhongshan Hospital — PHASE2

TrialNOT YET RECRUITING
Jan 2026EIK1005-002: A Clinical Research Study Evaluating EIK1005, a Werner Helicase Inhibitor, as Monotherapy and in Combination With Pembrolizumab in Participants With Advanced Solid Tumors Including Microsatellite Instability High (MSI-H) Tumors

Eikon Therapeutics — PHASE1, PHASE2

TrialRECRUITING
Dec 2025Evaluation of the NEOmom® Gastric Video Capsule for Gastric Cancer Screening

Nantes University Hospital — NA

TrialNOT YET RECRUITING
Dec 2025AUGMENTED RESPONSE OF VOLATILE BIOMARKERS IN THE ASSESSMENT OF OESOPHAGOGASTRIC CANCER (AROMA2)

Imperial College London

TrialNOT YET RECRUITING
Oct 2025Ivonescimab in Comb. With FOLFOX in Advanced HER2 Neg. GEA

Massachusetts General Hospital — PHASE2

TrialRECRUITING
Sep 2025Safety and Efficacy of SHR2554 Combined With Other Antitumor Therapies in Gastric or Gastro-oesophageal Junction Adenocarcinoma

Jiangsu HengRui Medicine Co., Ltd. — PHASE2

TrialRECRUITING

Data sourced from FDA regulatory filings and ClinicalTrials.gov. Updated periodically.

Treatments

1 available

Vyloy

zolbetuximab-clzb· Astellas Pharma Global Development Inc.
in combination with fluoropyrimidine- and platinum-containing chemotherapy, is indicated for the first-line treatment of adults with locally advanced unresectable or metastatic human epidermal growth

in combination with fluoropyrimidine- and platinum-containing chemotherapy, is indicated for the first-line treatment of adults with locally advanced unresectable or metastatic human epidermal growth factor receptor 2 (HER2)-negative gastric adenocarcinoma whose tumors are claudin (CLDN) 18.2 positive as determined by an FDA-approved test

Clinical Trials

20 recruitingView all trials with filters →
Phase 32 trials
A Clinical Study of Docetaxel for Injection (Albumin-bound) in Patients With Gastric Cancer
Phase 3
Actively Recruiting
PI: Ruihua Xu, Doctor (Sun Yat-sen University) · Sites: Shijiazhuang, Hebei · Age: 1875 yrs
Sonesitatug Vedotin in Combination With Capecitabine With or Without Rilvegostomig in Participants With Advanced or Metastatic Gastric, Gastroesophageal Junction, or Esophageal Adenocarcinoma Expressing Claudin18.2
Phase 3
Actively Recruiting
· Sites: Phoenix, Arizona; Duarte, California +228 more · Age: 1899 yrs
Phase 29 trials
The Safety and Clinical Efficacy of RAK Cell Therapy in Late-stage Gastric Cancer: A Randomized Controlled Trial
Phase 2
Actively Recruiting
· Sites: Beijing, Beijing Municipality · Age: 1870 yrs
Adebrelimab Combined With Nab-paclitaxel, Oxaliplatin and Tegafur (AOS) for Perioperative Treatment of Locally Advanced Resectable GC/GEJ
Phase 2
Actively Recruiting
PI: LIN YANG, Doctor (Cancer Institute and Hospital, Chinese Academy of ) · Sites: Beijing · Age: 1875 yrs
A Study to Investigate the Efficacy and Safety of ONO-4578 in Combination With Nivolumab and Chemotherapy in Chemotherapy-naïve Participants With HER2-negative Unresectable Advanced or Recurrent Gastric Cancer (Including Esophagogastric Junction Cancer)
Phase 2
Active
PI: Project Leader (Ono Pharmaceutical Co. Ltd) · Sites: Nagoya, Aichi-ken; Kashiwa-shi, Chiba +61 more · Age: 1899 yrs
Chemotherapy With or Without Radiation or Surgery in Treating Participants With Oligometastatic Esophageal or Gastric Cancer
Phase 2
Actively Recruiting
PI: Quynh-Nhu Nguyen (M.D. Anderson Cancer Center) · Sites: Houston, Texas · Age: 1879 yrs
PHASE II EVALUATION OF CYTOREDUCTION SURGERY AND HYPERTHERMIC INTRAPERITONEAL CHEMOTHERAPY (CRS/HIPEC) IN GASTRIC CANCER
Phase 2
Actively Recruiting
· Sites: Gilbert, Arizona · Age: 1899 yrs
Ivonescimab in Comb. With FOLFOX in Advanced HER2 Neg. GEA
Phase 2
Actively Recruiting
PI: Samuel Klempner, MD (Massachusetts General Hospital) · Sites: Santa Monica, California; Boston, Massachusetts · Age: 1899 yrs
Tadalafil Effect + Chemotherapy in Resectable Gastric/GEJ Cancer
Phase 2
Actively Recruiting
PI: Junaid Arshad, MD (University of Arizona) · Sites: Tucson, Arizona · Age: 1899 yrs
A Vaccine (Ad5.F35-hGCC-PADRE) for the Treatment of Gastrointestinal Adenocarcinoma
Phase 2
Active
PI: Babar Bashir, MD (Sidney Kimmel Comprehensive Cancer Center at Thoma) · Sites: Philadelphia, Pennsylvania · Age: 1899 yrs
Zimberelimab Anti-PD1 +/- Domvanalimab in Resectable Mmrd Gastric Cancer
Phase 2
Actively Recruiting
PI: Naureen Starling (The Royal Marsden NHSFT UK) · Sites: Cambridge, Cambridgeshire; Exeter, Devon +7 more · Age: 1899 yrs
Other8 trials
How Epigenetic Changes in hMLH1 Connect Lab Research With Diagnosis in Gastric Cancer
Actively Recruiting
PI: Annamaria Agnes (Fondazione Policlinico Universitario A. Gemelli, I) · Sites: Rome · Age: 1899 yrs
Observational Study of Patients Treated With Nivolumab and Chemotherapy for Advanced or Metastatic Esophageal, Gastroesophageal or Gastric Cancer in France
Actively Recruiting
PI: Bristol-Myers Squibb (Bristol-Myers Squibb) · Sites: Paris; Paris · Age: 1899 yrs
Tissue Procurement for Gastric Cancer, Gastrointestinal Stromal Tumors (GIST), Esophageal Cancer, Pancreas Cancer, Hepatocellular Cancer, Biliary Cancer, Neuroendocrine, Peritoneal Mesothelioma, Anal Cancer and Colorectal Cancer in Patients Undergoing Surgery or Biopsy
Actively Recruiting
PI: Daniel Catenacci, MD (University of Chicago) · Sites: Chicago, Illinois
Surgery in Gastrointestinal Stromal Tumors (GISTs) for Treatment, Tumor Modeling, and Genomic Analysis
Actively Recruiting
PI: Andrew M Blakely, M.D. (National Cancer Institute (NCI)) · Sites: Bethesda, Maryland · Age: 699 yrs
Local Treatment Strategies for Brain Metastases of Gastric and Esophageal Cancer
Active
PI: David Khalafyan, MD (Blokhin's Russian Cancer Research Center) · Sites: Homyel; Kaliningrad +13 more · Age: 1899 yrs
Pepsinogen II and Helicobacter Pylori Test in Gastric Cancer
Active
PI: Nayoung Kim, M.D., Ph.D. (Seoul National University Bundang Hospital) · Sites: Seongnam-si, Gyeonggi-do · Age: 1899 yrs
Relationship Between Perioperative Treatment Efficacy and The Tumor Microenvironment for Locally Advanced Resectable Gastric Cancer.
Actively Recruiting
· Sites: Guangzhou, Guangdong · Age: 1875 yrs
A Cohort Study of Mobile Capsule Gastroscopy for Gastric Pathologies Screening
Actively Recruiting
· Sites: Guangzhou, Guangdong · Age: 4599 yrs

No specialists are currently listed for NON RARE IN EUROPE: Adenocarcinoma of stomach.

View NORD Rare Disease Centers ↗Undiagnosed Disease Network ↗

Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

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Questions for your doctor

Bring these to your next appointment

  • Q1.What stage is my cancer, and what does that mean for my treatment options and outlook?,Has my tumor been tested for HER2, PD-L1, and microsatellite instability, and how do those results affect my treatment?,Should I consider genetic testing to see if my cancer is linked to a hereditary condition, and should my family members be tested?,What are the goals of my treatment — is it aimed at curing the cancer or controlling it?,What clinical trials are available for my type and stage of stomach cancer?,What changes do I need to make to my diet, and should I see a dietitian?,What support services are available to help me and my family cope with this diagnosis?

Common questions about NON RARE IN EUROPE: Adenocarcinoma of stomach

What is NON RARE IN EUROPE: Adenocarcinoma of stomach?

Stomach adenocarcinoma, also called gastric adenocarcinoma or stomach cancer, is a type of cancer that starts in the cells lining the inside of the stomach. It is the most common form of stomach cancer, making up about 90-95% of all stomach cancers. The cancer begins when normal stomach lining cells grow out of control and form a tumor. Over time, the tumor can grow through the stomach wall and spread to nearby organs, lymph nodes, or other parts of the body. In the early stages, stomach adenocarcinoma often causes no symptoms at all, which makes it hard to catch early. As the cancer grows, p

How is NON RARE IN EUROPE: Adenocarcinoma of stomach inherited?

NON RARE IN EUROPE: Adenocarcinoma of stomach follows a multifactorial inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.

At what age does NON RARE IN EUROPE: Adenocarcinoma of stomach typically begin?

Typical onset of NON RARE IN EUROPE: Adenocarcinoma of stomach is adult. Age of onset can vary across affected individuals.

Are there clinical trials for NON RARE IN EUROPE: Adenocarcinoma of stomach?

Yes — 20 recruiting clinical trials are currently listed for NON RARE IN EUROPE: Adenocarcinoma of stomach on UniteRare. See the clinical trials section on this page for phase, sponsor, and site details sourced from ClinicalTrials.gov.