UC Davis Cohort of Pre-Malignant and Malignant Gastro-Intestinal DisEases Study
TUMMIE
The UC Davis Cohort of Pre-Malignant and Malignant GastroIntestinal DisEases (TUMMIE) Study
1 other identifier
observational
1,000
1 country
1
Brief Summary
To establish a prospective cohort of individuals diagnosed with gastric pre-malignant conditions (chronic gastritis, atrophic gastritis, autoimmune gastritis, intestinal metaplasia, intestinal dysplasia) to monitor and study disease progression. The Investigators will like to survey cohort participants for lifestyle behaviors and environmental exposures associated with gastric pre-malignancy and cancer. Analyzing patient biospecimens to identify and characterize host and microbiome biomarkers associated with initiation and progression of gastric pre-malignancies.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jul 2021
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 13, 2021
CompletedFirst Submitted
Initial submission to the registry
August 19, 2021
CompletedFirst Posted
Study publicly available on registry
August 25, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
October 31, 2026
December 2, 2025
November 1, 2025
5.3 years
August 19, 2021
November 24, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Pre-malignant progression
Review the number of patients with gastric conditions and any progression to advanced pre-neoplasia/malignancy or cancer and identify and characterize host and microbiome biomarkers associated with initiation and progression of gastric pre-malignancies
2024
Secondary Outcomes (1)
Recruitment response rates
2024
Eligibility Criteria
Study population will be selected from University of California Davis Health patients of all races and ethnicities.
You may qualify if:
- UCDHS patients
- Of all races/ethnicities
- Diagnosed with premalignant conditions such as chronic gastritis, atrophic gastritis, autoimmune gastritis, gastric intestinal metaplasia, gastric intestinal dysplasia or gastic polyps
- During the last 5 years and current years to come (2015-2025)
- Some participants may be scheduled for endoscopy
You may not qualify if:
- We will not include children (anyone under the age of 18), individuals unable to consent, pregnant women, or prisoners.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of California Davis Comprehensive Cancer Center
Sacramento, California, 95817, United States
Biospecimen
With patient consents, study team will collect saliva, stool, blood and/or gastric biopsy or gastric juices.
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Luis G Carvajal-Carmona, PhD
University of California, Davis
Study Design
- Study Type
- observational
- Observational Model
- CASE CONTROL
- Time Perspective
- OTHER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 19, 2021
First Posted
August 25, 2021
Study Start
July 13, 2021
Primary Completion (Estimated)
October 31, 2026
Study Completion (Estimated)
October 31, 2026
Last Updated
December 2, 2025
Record last verified: 2025-11