Skip to content

A Study to Learn About the Tests Looking for a Gene Mutation in Adults With Lung Cancer in China (ELEGANT)

To Investigate EGFR Exon20 Insertion Mutation Testing Methodologies, Clinicopathological Characteristics and Molecular Epidemiology in Chinese Patients With Advanced NSCLC: a Nationwide Multicentre Real-world Registry Study

Status
Withdrawn
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05737849
Acronym
ELEGANT
Enrollment
0
Registered
2023-02-21
Start date
2024-01-30
Completion date
2024-12-30
Last updated
2023-10-23

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

Conditions

Non-small Cell Lung Cancer (NSCLC)

Keywords

Drug Therapy, EGFR exon20 insertion mutation

Brief summary

The main aim of this study is to examine the percentage of people with lung cancer who carry a certain gene mutation (epidermal growth factor receptor exon 20 insertions - EGFR ex20ins) and their frequency in Chinese participants with Non-small cell lung cancer (NSCLC) after having been tested for the gene mutation. Data from the participant's electronic medical records at the hospital will be collected.

Detailed description

This is a non-interventional, retrospective, observational study of the Chinese participants with locally advanced or metastatic NSCLC with EGFR ex20ins mutation. The primary objective of this study is to explore the prevalence of EGFR ex20ins, subtypes of EGFR ex20ins and their frequency in Chinese participants with locally advanced or metastatic NSCLC. The study will enroll approximately 10800 patients. Participants will be enrolled in the following two cohorts: * Cohort 1: Participants With Positive EGFR ex20ins Detection * Cohort 2: Participants With Positive and Negative EGFR ex20ins Detection The data will be collected retrospectively using the participant electronic medical records and next-generation gene sequencing (NGS)/polymerase chain reaction (PCR) kit instructions. This multi-center trial will be conducted at 15 sites across China. The overall time to participate and data collection will be approximately 12 months.

Interventions

OTHERNo Intervention

As this is an observational study, no intervention will be administered in this study.

Sponsors

Takeda
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Cohort 1 and 2: 1\. Participants with a diagnosis of locally advanced or metastatic NSCLC, clinical staging of IIIB-IV. Cohort-1: 1\. Participants who have received NGS testing and have EGFR ex20ins positive result. Cohort-2: 1\. Participants who have received NGS testing

Exclusion criteria

1\. Incomplete information, including key demographic characteristics, clinicopathological characteristics, and genetic testing information.

Design outcomes

Primary

MeasureTime frameDescription
Cohort 2: Prevalence of EGFR ex20ins in Chinese Participants With Locally Advanced or Metastatic NSCLCUp to 3 years prior to leading site initiationThe prevalence of EGFR ex20ins will be reported for participants with locally advanced or metastatic NSCLC.
Cohort 1 and 2: Number of EGFR ex20ins Subtypes in Chinese Participants With Locally Advanced or Metastatic NSCLCUp to 3 years prior to leading site initiationEGFR ex20ins subtype is defined by insertion or duplication mutation occurred in amino acids (AA) 761 to AA775 of EGFR gene. The number of EGFR ex20ins subtypes will be reported.
Cohort 1 and 2: Frequency of Each EGFR ex20ins Subtype in Chinese Participants With Locally Advanced or Metastatic NSCLCUp to 3 years prior to leading site initiationThe frequency of each EGFR ex20ins subtype will be reported.

Secondary

MeasureTime frameDescription
Cohort 1 and 2: Number of EGFR ex20ins Positive Participants With Cytology or Histology at the Time of NGS TestingUp to 3 years prior to leading site initiationNumber of EGFR ex20ins positive participants with adenocarcinoma, squamous cell carcinoma, mixed, or other carcinomas will be evaluated.
Cohort 1 and 2: Site of Metastasis at the Time of NGS TestingUp to 3 years prior to leading site initiationSite of metastasis at the time of NGS testing will be reported.
Cohort 1 and 2: Number and Kinds of Co-occurring Mutations of EGFR ex20ins at Baseline in Positive Participants Detected by NGS TestingBaseline (prior to NGS testing)The number and kinds of co-occurring mutations at baseline will be reported. The baseline is defined as treatment naive before NGS testing.
Cohort 2: Number of EGFR ex20ins Positive Participants, Participants With Common EGFR Mutations and Participants With EGFR Wild Type With Demographic CharacteristicsUp to 3 years prior to leading site initiationDemographic characteristics include age, gender, smoking history and family history for malignancies.
Cohort 1 and 2: Percentage of Theoretically Underdiagnosed EGFR ex20ins Mutation by Different PCR Kits Based on NGS Real-world DatabaseUp to 3 years prior to leading site initiationThe theoretically underdiagnosed rate about EGFR ex20ins detection by different PCR kits available in China will be reported.
Cohort 2: Number of EGFR ex20ins Positive Participants, Participants With Common EGFR Mutations and Participants With EGFR Wild Type With Cytology or Histology at the Time of NGS TestingUp to 3 years prior to leading site initiationNumber of EGFR ex20ins positive participants, participants with common EGFR mutations and participants with EGFR wild type with adenocarcinoma, squamous cell carcinoma, mixed, or other carcinomas will be evaluated.
Cohort 2: Site of Metastasis at the Time of NGS TestingUp to 3 years prior to leading site initiationSite of metastasis at the time of NGS testing will be reported.
Cohort 2: Number and Kinds of Co-occurring Mutations at Baseline in EGFR ex20ins Positive Participants, Participants With Common EGFR Mutations and Participants With EGFR Wild Type Detected by NGS TestingBaseline (prior to NGS testing)The number and kinds of co-occurring mutations at baseline will be reported. The baseline is defined as treatment naive before NGS testing.
Cohort 2: Number of EGFR ex20ins Positive Participants, Participants With Common EGFR Mutations and Participants With EGFR Wild Type With Clinical Stages of Lung Cancer at the Time of NGS TestingUp to 3 years prior to leading site initiationNumber of EGFR ex20ins positive participants, participants with common EGFR mutations and participants with EGFR wild type with the clinical stages of cancer IIIB, IIIC, IV will be evaluated using the international association for the study of lung cancer eighth edition of the TNM classification for staging criteria.
Cohort 1 and 2: Number of EGFR ex20ins Positive Participants With Demographic CharacteristicsUp to 3 years prior to leading site initiationDemographic characteristics include age, gender, smoking history and family history for malignancies.
Cohort 1 and 2: Number of EGFR ex20ins Positive Participants With Clinical Stages of Lung Cancer at the Time of NGS TestingUp to 3 years prior to leading site initiationNumber of EGFR ex20ins positive participants with the clinical stages of cancer IIIB, IIIC, IV will be evaluated using the international association for the study of lung cancer eighth edition of the tumor, nodes, and metastases (TNM) classification for staging criteria.

Countries

China

Outcome results

None listed

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