NCT06408220 · City of Hope Medical Center
Risk Assessment Evaluation for Identifying Participants at High Risk for Stomach Cancer
What this study is about
This clinical trial evaluates the usefulness of various risk assessment tests, including Helicobacter pylori (H. pylori) breath testing, questionnaires, and endoscopies for identifying participants at high risk for stomach cancer. H. pylori is a bacteria that causes stomach inflammation and ulcers in the stomach. People with H. pylori infections may be more likely to develop cancer in the stomach.
View original scientific description
This clinical trial evaluates the usefulness of various risk assessment tests, including Helicobacter pylori (H. pylori) breath testing, questionnaires, and endoscopies for identifying participants at high risk for stomach cancer. H. pylori is a bacteria that causes stomach inflammation and ulcers in the stomach. People with H. pylori infections may be more likely to develop cancer in the stomach. H. pylori breath testing can help identify the presence of H. pylori infection in a participant and help identify if the participant may be at a higher risk of developing stomach cancer. An endoscopy uses a thin, flexible lighted tube that is inserted inside the esophagus, stomach, and first part of the small intestine. This allows the doctor to see and look for abnormal areas that may need to be biopsied. Risk assessment including H. pylori evaluation, questionnaires, and endoscopies may help identify participants at high risk for stomach cancer and may be a useful screening tool for earlier stomach cancer diagnosis.
Interventions
PROCEDURE
Biopsy
Undergo tissue biopsy
PROCEDURE
Biospecimen Collection
Undergo blood sample collection
PROCEDURE
Breath Test
Undergo H. pylori breath test
PROCEDURE
Esophagogastroduodenoscopy
Undergo EGD
OTHER
Questionnaire Administration
Complete questionnaires
Primary outcome measures
Percentage of screening individuals found to be at high risk for gastric cancer (feasibility)
Time frame: At time of screening up to 3 years
Study feasibility will be defined as ≥ 10% of screened individuals found to be at high risk for gastric cancer. The study will be successful if ≥ 10% of screened individuals (24 of ≤ 240) have a risk score of ≥ 12 or have signs/symptoms that have persisted for ≥ 1 month that are associated with gastric cancer. The reported results will include counts/proportions of screened individuals found to be at high risk for gastric cancer (≥ 12 risk score).
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Documented informed consent of the participant and/or legally authorized representative
- Assent, when appropriate, will be obtained per institutional guidelines
- Age: ≥ 40 years to ≤ 80 years
- Identify as a racial minority either Asian, Hispanic, or Black American
- Willingness to:
- Provide blood samples and undergo upper endoscopy
Exclusion criteria
- Identify as Non-Hispanic White
- History of gastric cancer
- Known premalignant lesions of the stomach
- History of upper endoscopy within 2 years
- Women of childbearing potential: Pregnant/ nursing
- An employee who is under the direct/indirect supervision of the principal investigator (PI)/a coinvestigator/the study manager
- A direct study team member
Where
- Duarte, California
Collaborators
National Cancer Institute (NCI)
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Mar 13, 2026 · Source of record for eligibility and locations