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“TOGAS Study: Carrying out a preventive gastroscopy together with a colonoscopy”

“TOGAS Study: Carrying out a preventive gastroscopy together with a colonoscopy” - TOGAS

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
DRKS
Registry ID
DRKS00032660
Enrollment
2200
Registered
2023-09-11
Start date
2024-02-20
Completion date
Unknown
Last updated
2026-06-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

C26.8 C18 K63.5

Interventions

Group 1: The additional examination (gastroscopy) takes place on the same day as the colonoscopy. In addition to pure endoscopy with image documentation, both tissue samples from the stomach and blood

Sponsors

European Health and Digital Executive Agency (HADEA),
Lead Sponsor

Eligibility

Sex/Gender
All
Age
50 Years to 74 Years

Inclusion criteria

Inclusion criteria: - Patients that undergo screening or surveillance colonoscopy for lower GI neoplasia. - Patients that present for colorectal cancer / polyp screening or surveillance will be checked for inclusion. - Written informed consent

Exclusion criteria

Exclusion criteria: - OGD at a high volume endoscopic centre within the past 3 years - Known gastric cancer - Genetic cancer syndromes - Prior gastrectomy or bariatric gastric surgery - Known gastric precancerous conditions (gastric atrophy, intestinal metaplasia, dysplasia) - Acute upper GI bleeding within the last 4 weeks - Coagulation defects or medication prohibiting biopsy sampling - Pregnancy, breast-feeding women - Inability to actively consent to study participation

Design outcomes

Primary

MeasureTime frame
Presence of gastric cancer or gastric precancerous conditions and lesions that require endoscopic surveillance or treatment.

Secondary

MeasureTime frame
· Key performance indicators for upper GI endoscopy (OGD) as compared to quality standards in colonoscopy · development of a cost effectiveness model of screening OGD in different settings · Preferred strategy to enter screening program · Reasons for non-participation in gastric cancer screening · endoscopist quality to detect other relevant gastric lesions, oesophageal and duodenal diseases and conditions as compared to quality standards in colonoscopy (ADR, withdrawal time, reporting) · development of a model of cost effectiveness of screening OGD in different countries · Specimen and data allocation of screened subjects for additional analysis and follow up analysis if later applicable · Endoscopic imaging and analysis of varying results of endoscopy and histology · Optimal population to include in potential screening program · Blood Pepsinogen levels in correlation with endoscopic findings

Countries

France, Germany, Ireland, Lithuania, Netherlands, Portugal

Contacts

Public ContactJochen Weigt

Universitätsklinik für Gastroenterologie, Hepatologie und Infektiologie

jochen.weigt@med.ovgu.de+49 391 67 13122

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Jun 11, 2026