NCT06846996

Brief Summary

Trastuzumab deruxtecan's (T-DXd's) efficacy and safety has been confirmed in traditional clinical trials, there is a lack of real-world evidence, especially among Chinese patients. The objective of this study is to evaluate real-world effectiveness and safety profile of T-DXd by collecting real-world data treating in patients with locally advanced or metastatic HER2-positive gastric or gastroesophageal junction adenocarcinoma.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
260

participants targeted

Target at P75+ for all trials

Timeline
14mo left

Started Feb 2025

Typical duration for all trials

Geographic Reach
1 country

36 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress49%
Feb 2025Jul 2027

First Submitted

Initial submission to the registry

February 21, 2025

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 26, 2025

Completed
1 day until next milestone

Study Start

First participant enrolled

February 27, 2025

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2027

Last Updated

July 8, 2025

Status Verified

July 1, 2025

Enrollment Period

2.4 years

First QC Date

February 21, 2025

Last Update Submit

July 7, 2025

Conditions

Keywords

HER2-positive gastric cancerHER2-positive gastroesophageal junction

Outcome Measures

Primary Outcomes (1)

  • Real-world Time to Treatment Failure (rwTTF)

    rwTTF is defined as time from T-DXd treatment initiation date to the earliest date of treatment discontinuation due to disease progression, physician decision, adverse events or death.

    T-DXd treatment initiation date (index date) to date of treatment discontinuation due to disease progression, physician decision, adverse events or death, whichever occurs first, up to approximately 2 years

Secondary Outcomes (2)

  • Number of Participants Reporting Treatment Related Adverse Events (TRAE) and Physician-reported Adverse Event of Special Interest (AESI), Regardless of Grade

    T-DXd treatment initiation date (index date) until end of study, or death, or withdrawal of consent, or loss to follow-up (LTFU), or study closure, whichever occurs first, up to approximately 2 years

  • Real-world Time to Next Treatment (rwTTNT)

    T-DXd treatment initiation date (index date) to the date of receiving next line anti-cancer treatment or death, whichever occurs first, up to approximately 2 years

Study Arms (1)

HER2-positive gastric/gastroesophageal junction adenocarcinoma

Patients who are diagnosed with locally advanced or metastatic HER2-positive gastric or gastroesophageal junction adenocarcinoma who made a decision (prior to enrolling in this study) to receive T-DXd treatment in a clinical practice setting.

Drug: Trastuzumab deruxtecan (T-DXd)

Interventions

This is an non-interventional, observational study. No drug will be provided or administered as part of this protocol; however, participants on T-DXd (starting dose 6.4 mg/kg IV Q3W) will be enrolled in this study as part of clinical routine or the clinical judgement of physician.

HER2-positive gastric/gastroesophageal junction adenocarcinoma

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Eligible participants for this study include participants with HER2-positive local advanced or metastatic GC/GEJA.

You may qualify if:

  • Participants with pathologically diagnosed locally advanced unresectable or metastatic gastric cancer/gastroesophageal junction adenocarcinoma (GC/GEJA).
  • ≥18 years of age at the time of starting the first dose of T-DXd and signing informed consent form (ICF), capable of providing informed consent.
  • HER2-positive status (IHC 3+ or IHC 2+/ISH +).
  • Received prior anti-cancer treatment regimens according to National Medical Products Administration indication or clinical judgement of physician.
  • Decision to newly initiate T-DXd before study ICF signing. If the participants have started the first dose of T-DXd no longer than 21 days before enrollment, they could be enrolled if the signed and dated ICF could be obtained.

You may not qualify if:

  • Participants who meet any of the following criteria will be excluded from the study:
  • Pregnancy or breastfeeding.
  • Participants who at the time of data collection of the study are participating in or have participated in an interventional study that remains blinded.
  • Known hypersensitivity to either the drug substances or inactive ingredients in the drug product.
  • Judged by the investigator to be unfit to participate in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (36)

China-Japan Friendship Hospital

Beijing, 100029, China

RECRUITING

Peking Union Medical College Hospital

Beijing, 100032, China

NOT YET RECRUITING

Peking University First Hospital

Beijing, 100034, China

RECRUITING

Beijing Cancer Hospital

Beijing, 100142, China

RECRUITING

Beijing GoBroad Hospital

Beijing, 102206, China

RECRUITING

The First Hospital of Jilin University

Changchun, 130031, China

NOT YET RECRUITING

Changzhi People's Hospital

Changzhi, 046000, China

RECRUITING

Fujian Cancer Hospital

Fuzhou, 350000, China

RECRUITING

Guangdong Provincial People's Hospital

Guangzhou, 510080, China

RECRUITING

The First Affiliated Hospital, Sun Yat-sen University

Guangzhou, 510080, China

RECRUITING

Affiliated Cancer Hospital and Institute of Guangzhou Medical University

Guangzhou, 510095, China

RECRUITING

Guangdong Hospital of Traditional Chinese Medicine

Guangzhou, 510120, China

RECRUITING

Hainan General Hospital

Haikou, 570100, China

RECRUITING

Zhejiang Cancer Hospital

Hangzhou, 310005, China

RECRUITING

Sir Run Run Shaw Hospital, Zhejiang University School of Medicine

Hangzhou, 310009, China

NOT YET RECRUITING

The Second Affiliated Hospital Zhejiang University School of Medicine

Hangzhou, 310009, China

RECRUITING

Anhui Province Cancer Hoospital

Hefei, 236000, China

RECRUITING

Jiangmen Central Hospital

Jiangmen, 529000, China

RECRUITING

Nanjing Drum Tower Hospital

Nanjing, 210000, China

RECRUITING

Jiangsu Cancer Hospital

Nanjing, 210009, China

NOT YET RECRUITING

Shanghai GoBroad Cancer Hospital

Shanghai, 200003, China

RECRUITING

Shanghai ninth People's Hospital,Shanghai Jiaotong University School of Medicine

Shanghai, 200011, China

NOT YET RECRUITING

Ruijin Hospital, Shanghai Jiaotong University School of Medicine

Shanghai, 200025, China

RECRUITING

Zhongshan Hospital

Shanghai, 200032, China

RECRUITING

Huadong Hospital Affiliated to Fudan University

Shanghai, 201104, China

RECRUITING

Cancer Hospital of Shantou University Medical College

Shantou, 515000, China

RECRUITING

Liaoning Cancer Hospital

Shenyang, 110000, China

NOT YET RECRUITING

Shanxi Cancer Hospital

Taiyuan, 030000, China

RECRUITING

Taizhou Hospital of Zhejiang Province

Taizhou, 317700, China

RECRUITING

Tianjin Medical University Cancer Institute and Hospital

Tianjin, 300000, China

NOT YET RECRUITING

The Second Hospital of Tianjin Medical University

Tianjin, 300211, China

NOT YET RECRUITING

The Affiliated Hospital of Xi'an Jiaotong University

Xi'an, 710061, China

RECRUITING

The Affiliated Hospital of Xiamen University

Xiamen, 361003, China

NOT YET RECRUITING

The Affiliated Hospital of Xuzhou Medical University

Xuzhou, 221006, China

RECRUITING

Henan Cancer Hospital

Zhengzhou, 450008, China

RECRUITING

The First Affiliated Hospital of Zhengzhou University

Zhengzhou, 450066, China

NOT YET RECRUITING

MeSH Terms

Interventions

trastuzumab deruxtecan

Study Officials

  • Project Manager

    Daiichi Sankyo Co., Ltd.

    STUDY DIRECTOR

Central Study Contacts

Contact for Clinical Trial Information

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 21, 2025

First Posted

February 26, 2025

Study Start

February 27, 2025

Primary Completion (Estimated)

July 31, 2027

Study Completion (Estimated)

July 31, 2027

Last Updated

July 8, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations