The Impact of Epigenetic MMRd in Endometrial carcinomas-a Real World Study
Study Details
Study Description
Brief Summary
In recent years, the incidence of endometrial carcinoma (EC) has increased significantly and patients tends to be younger. In addition to known risk factors such as obesity, hypertension and diabetes, genetic factors also play an important role in the occurrence and development of EC. Among them, Mismatch Repair Defect (MMR) can produce mutant phenotypes, leading to cancer susceptibility. Although some articles indicated that epigenetic MMRd, one type of MMRd, predicted poor prognosis among endometrial carcinoma patients, hitherto, the clinicopathological significance and prognosis of epigenetic MMRd has not been determined. To date, there are no relevant large-sample data to investigate the prevalence of epigenetic MMRd in Chinese population, as well as the impact on the prognosis of endometrial cancer. In this setting, The purpose of this study was to investigate the prevalence of epigenetic MMRd and its impact on clinicopathology and prognosis on endometrial cancer among Chinese patients.
| Condition or Disease | Intervention/Treatment | Phase |
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Detailed Description
We conducted a retrospective real-world study of all endometrial carcinoma cases from 2015 to 2021. The inclusion criterion is all patients diagnosed with endometrial cancer in our hospital from 2015 to 2021 and exclusion criteria are those without histological specimens in our hospital. After immunohistochemistry and MLH1-promoter methylation testing, tumors were classified into 3 groups according to status of mismatch repair defects. Tumors with MMR abnormalities by IHC and MLH1 methylation were classified as epigenetic MMR deficiency while those without MLH1 methylation were classified as probable MMR mutations, and those without MMRd were classified as MMR proficient. The first outcome is the prevalence of epigenetic MMRd in endometrial cancer, and the second outcome is Whether the clinicopathological features and prognosis of endometrioid adenocarcinoma differ between the epigenetic MMRd population, MMR proficient population and the Lynch/ Lynch-like population.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| epigenetic MMR deficiency Tumors with MMR abnormalities by IHC and MLH1 methylation |
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| probable MMR mutations Tumors with MMR abnormalities by IHC and without MLH1 methylation |
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| MMR proficient without MMR abnormalities by IHC |
Outcome Measures
Primary Outcome Measures
- Proportion of MMRd caused by MLH1 promoter methylation in endometrial carcinoma [up to two years]
the prevalence of epigenetic MMRd in endometrial cancer
Secondary Outcome Measures
- progression-free survival time (PFS) [up to two years]
progression-free survival time (PFS)
Eligibility Criteria
Criteria
Inclusion Criteria:
- all patients diagnosed with endometrial cancer in our hospital from 2015 to 2021
Exclusion Criteria:
- those without histological specimens in our hospital
Contacts and Locations
Locations
No locations specified.Sponsors and Collaborators
- Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
- Presicions Scientific(Beijing) Co., Ltd
Investigators
- Principal Investigator: Zhong-qiu Lin, Department of Gynecologic Oncology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- SYSEC-KY-KS-2022-105