A Study to Observe the Safety of VYLOY (Zolbetuximab) in People in South Korea With Gastric or Gastroesophageal Junction Cancer.

Last updated: March 10, 2026
Sponsor: Astellas Pharma Korea, Inc.
Overall Status: Active - Recruiting

Phase

N/A

Condition

Neoplasms

Adenocarcinoma

Treatment

zolbetuximab

Clinical Study ID

NCT06902545
8951-PV-0001
  • All Genders

Study Summary

This study is for people in South Korea who have cancer in or around the stomach (gastric cancer) or cancer where the food pipe (esophagus) joins the stomach, called gastroesophageal junction (GEJ) cancer. Their cancer is locally advanced, unresectable, or metastatic. Locally advanced means the cancer has spread to tissue close by. Unresectable means the cancer cannot be removed by surgery. Metastatic means the cancer has spread to other parts of the body.

In South Korea, VYLOY is approved for the treatment of gastric cancer or GEJ cancer. The people in this study will receive VYLOY as part of their usual treatment for their cancer. In standard clinical practice VYLOY is given to people slowly through a tube into a vein.

The main aim of the study is to collect information in a real-world setting about the safety of VYLOY in people with gastric cancer or GEJ cancer in clinics in South Korea. This study will also help researchers learn how long people's gastric cancer or GEJ cancer stays stable.

This study is about collecting information only. This is known as an observational study. The individual's doctor decides on treatment, not the sponsor (Astellas). The study will last about 1 year (54 weeks).

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Patients who receive treatment with VYLOY injection, according to the approved locallabel.

Exclusion

Exclusion Criteria:

  • Patients with any contraindication for VYLOY injection, according to the approvedlocal label.

  • Patients who are registered or scheduled to be registered in any clinical trialsinvolving investigational drug administration.

Study Design

Total Participants: 377
Treatment Group(s): 1
Primary Treatment: zolbetuximab
Phase:
Study Start date:
April 03, 2025
Estimated Completion Date:
July 31, 2030

Connect with a study center

  • KR82008

    Suwon, Gyeonggi-do
    Korea, Republic of

    Site Not Available

  • KR82006

    Yangsan, Gyeongsangnam-do
    Korea, Republic of

    Site Not Available

  • KR82001

    Seoul,
    Korea, Republic of

    Active - Recruiting

  • KR82002

    Seoul,
    Korea, Republic of

    Active - Recruiting

  • KR82003

    Seoul,
    Korea, Republic of

    Active - Recruiting

  • KR82004

    Seoul,
    Korea, Republic of

    Active - Recruiting

  • KR82005

    Seoul,
    Korea, Republic of

    Site Not Available

  • KR82011

    Seoul,
    Korea, Republic of

    Active - Recruiting

  • KR82010

    Goyang-si, Gyeonggi-do
    South Korea

    Active - Recruiting

  • KR82008

    Suwon, Gyeonggi-do
    South Korea

    Active - Recruiting

  • KR82009

    Suwon, Gyeonggi-do
    South Korea

    Active - Recruiting

  • KR82010

    Goyang-si 1842485, Gyeonggi-do 1841610
    South Korea

    Site Not Available

  • KR82008

    Suwon 1835553, Gyeonggi-do 1841610
    South Korea

    Site Not Available

  • KR82006

    Yangsan, Gyeongsangnam-do
    South Korea

    Active - Recruiting

  • KR82006

    Yangsan 1832828, Gyeongsangnam-do 1902028
    South Korea

    Site Not Available

  • KR82012

    Hwasun Gun, Jeollanam-do
    South Korea

    Active - Recruiting

  • KR82001

    Seoul,
    South Korea

    Active - Recruiting

  • KR82002

    Seoul,
    South Korea

    Active - Recruiting

  • KR82003

    Seoul,
    South Korea

    Active - Recruiting

  • KR82004

    Seoul,
    South Korea

    Active - Recruiting

  • KR82005

    Seoul,
    South Korea

    Active - Recruiting

  • KR82007

    Seoul,
    South Korea

    Active - Recruiting

  • KR82011

    Seoul,
    South Korea

    Active - Recruiting

  • KR82013

    Seoul,
    South Korea

    Active - Recruiting

  • KR82001

    Seoul 1835848,
    South Korea

    Active - Recruiting

  • KR82002

    Seoul 1835848,
    South Korea

    Active - Recruiting

  • KR82003

    Seoul 1835848,
    South Korea

    Active - Recruiting

  • KR82004

    Seoul 1835848,
    South Korea

    Active - Recruiting

  • KR82005

    Seoul 1835848,
    South Korea

    Active - Recruiting

  • KR82007

    Seoul 1835848,
    South Korea

    Site Not Available

  • KR82011

    Seoul 1835848,
    South Korea

    Active - Recruiting

  • KR82013

    Seoul 1835848,
    South Korea

    Active - Recruiting

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