# Comparison of Molecular-Genetic Concordance of the Primary Tumor and Brain Metastases of Gastroesophageal Cancers

> **NCT07464470** · — · RECRUITING · sponsor: **Blokhin's Russian Cancer Research Center** · enrollment: 30 (estimated)

## Conditions studied

- Gastric Cancer
- Esophageal Cancer
- Brain Metastases

## Interventions

- **DIAGNOSTIC_TEST:** HER2 Testing
- **DIAGNOSTIC_TEST:** MSI Testing
- **DIAGNOSTIC_TEST:** PD-L1 Testing
- **DIAGNOSTIC_TEST:** CLDN18.2 Testing

## Key facts

- **NCT ID:** NCT07464470
- **Lead sponsor:** Blokhin's Russian Cancer Research Center
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2026-04-01
- **Primary completion:** 2028-10-01
- **Final completion:** 2028-10-01
- **Target enrollment:** 30 (ESTIMATED)
- **Last updated:** 2026-03-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07464470

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07464470, "Comparison of Molecular-Genetic Concordance of the Primary Tumor and Brain Metastases of Gastroesophageal Cancers". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT07464470. Licensed CC0.

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