Whether Sputum Can Serve as an Alternative Source for Liquid Biopsy in Patients With Lung Cancer

NCT ID: NCT05034445

Last Updated: 2021-09-05

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 71 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2020-01-30
• Study Completion Date: 2021-04-28

Brief Summary

This study intends to use Onconscreen plus 520 Panel (Burning Rock, China) to conduct NGS testing in sputum, tissues and blood samples of patients with advanced NSCLC. In order to explore the use of sputum as a diagnosis method for NSCLC patients, we will collect relevant clinical information and follow-up treatment information. The primary endpoint will reveal the effectiveness, accuracy, and feasibility in sputum, as compared to tissues and blood samples. This study aims to study the feasibility and advantages/disadvantages of using sputum as an noval body fluid biopsy option.

Detailed Description

With the advancements in the development of targeted therapy, the detection of actionable genes has become routine practice in diagnosing lung cancer, especially in non-small cell lung cancer (NSCLC). Due to its non-invasiveness and great accessibility, plasma-based mutation profiling, with a sensitivity of approximately 70% relative to tissue samples, is widely used in clinical settings. Profiling using other body fluids such as pleural effusion, ascites, cerebrospinal fluid have been actively explored. Circulating cell-free DNA has also been shown to be present in other bodily fluids such as sputum and urine, which have potential to serve as liquid biopsy media for comprehensive mutation profiling. In this study, we investigated the potential of sputum obtained from NSCLC patients for mutation profiling using matched tissue, plasma and sputum from more than 30 advanced-stage NSCLC patients.

Baseline tissues, plasma and sputum samples from more than 30 newly diagnosed advanced NSCLC patients with 520 Panel sequencing (tissue 1000X, sputum 1000X, plasma cfDNA 10000X), in different methods will be compared.

Primary endpoints:

1、Compare different sample types with concordence rate, sensitivity, and specificity.

Conditions

NSCLC

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Study Groups

Sputum group

Sputum samples from more than 30 newly diagnosed advanced NSCLC patients with 520 Panel sequencing (sputum 1000X)

Next generation sequencing

Intervention Type: DIAGNOSTIC_TEST

Extract DNA from sputum sample, minimum DNA amount should be over 50ng.

Tissue group

Clinical data review to obtain corresponding tissue samples from more than 30 newly diagnosed advanced NSCLC patients with 520 Panel sequencing (tissue 1000X)

No interventions assigned to this group

Plasma group

Clinical data review to obtain corresponding plasma samples from more than 30 newly diagnosed advanced NSCLC patients with 520 Panel sequencing (plasma 10000X)

No interventions assigned to this group

Interventions

Next generation sequencing

Extract DNA from sputum sample, minimum DNA amount should be over 50ng.

Intervention Type: DIAGNOSTIC_TEST

Eligibility Criteria

Inclusion Criteria

1. Patients with stage IIIB-IV NSCLC in AJCC TNM stage (8th edition) confirmed with histology or cytology;

2. Newly diagnosed;

3. There are sufficient samples that meet the requirements for examination;

4. Eligible for the next anti-tumor systemic treatment;

5. Willing to sign the consent inform, age ≥18 years;

6. Patients willing to cooperate with the planned follow-up schedule;

7. Permit to collect clinical data needed by the institute.

Exclusion Criteria

1. Diagnosed with other malignant tumors at the same time (except for fully treated cervical carcinoma in situ, basal or squamous cell skin cancer);

2. The patient has other serious diseases that may affect follow-up and short-term survival;

3. Any other medical conditions and social/psychological problems that investigator evaluated is not suitable to enroll in this study;

4. Absents of contrast-enhanced magnetic resonance imaging (MRI) or contrast-enhanced computer tomography (CT) during clinical follow-up.

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Guangzhou Institute of Respiratory Disease

OTHER

Sponsor Role: lead

Responsible Party

Zhou Chengzhi

Director

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Chengzhi Zhou, Dr. PhD.

Role: PRINCIPAL_INVESTIGATOR

The First Affiliated Hospital of Guangzhou Medical University

Locations

Zhou Chengzhi

Guangzhou, Guangdong, China

Countries

China

Other Identifiers

CROC2004

Identifier Type: -

Identifier Source: org_study_id