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

NSCLC Clinical Trial

Official title:

A Prospective Study of Advanced NSCLC Patients Genomic Landscape Through Sputum NGS Detection

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05034445
• Other study ID #: CROC2004
• Status: Completed
• Start date: January 30, 2020
• Est. completion date: April 28, 2021

Study information

• Verified date: August 2021
• Source: Guangzhou Institute of Respiratory Disease
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational [Patient Registry]

Clinical Trial 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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 71
• Est. completion date: April 28, 2021
• Est. primary completion date: April 20, 2021
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

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.

Related Conditions & MeSH terms

• NSCLC

Intervention

Diagnostic Test:
• Next generation sequencing
Extract DNA from sputum sample, minimum DNA amount should be over 50ng.

Locations

Country	Name	City	State
China	Zhou Chengzhi	Guangzhou	Guangdong

Sponsors (1)

Lead Sponsor	Collaborator
Guangzhou Institute of Respiratory Disease

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Compare different sample types with concordence rate, sensitivity, and specificity.	Concordance rate was defined as the fraction of the total number of true positive and true negative patients relative to the cohort or indicated subgroup; Sensitivity rate means true positive rate, true positive patients were defined as those who carried at least one genomic alteration that were detected in both matched samples.; Specificity rate means ture negative rate, patients were as defined true negative if no alteration was detected from either matched sample.	up to 2 years