Clinical Outcomes of Endoscopic Resection for Treating WHYX Lesion

Clinical Outcomes of Endoscopic Resection for Treating Extremely Well Differentiated Intestinal-type Adenocarcinoma (WHYX Lesion)

Status

Completed

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT01451034

Enrollment

872

Registered

2011-10-13

Start date

2009-01-31

Completion date

2010-12-31

Last updated

2011-10-13

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

Conditions

Extremely Well Differentiated Intestinal-type Adenocarcinoma, WHYX Lesion

Keywords

WHYX lesion, endoscopic resection, complete resection, complete resection rate, endoscopic feature, Average size discrepancy

Brief summary

Endoscopically, WHYX cancers demonstrated a vague extent of tumor spread due to pale color changes in both the background atrophic and metaplastic gastric mucosa. However, the clinical outcomes of WHYX cancers after endoscopic resection are unknown. The aim of this study was to evaluate clinical outcomes of WHYX cancers after endoscopic resection.

Interventions

PROCEDUREWHYX cancer group

WHYX cancer diagnosed by pathologic report

Study design

Allocation

NON_RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

* From January 2009 to December 2010 enrolled 872 patients with EGC

Exclusion criteria

* EGC with regional lymph node metastasis in radiologic finding endoscopically suspicious submucosal invasion

Design outcomes

Primary

Measure	Time frame	Description
complete resection rate	6 months after endoscopical resection	Complete resection was defined to have all of the following features: 1. grossly en bloc resection, 2. Tumor-free lateral and vertical resection margins, 3. No lymphovascular invasion, and 5. A depth of submucosal tumor invasion of less than 500 micrometers.

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026