ctDNA Analysis to Monitor the Risk of Progression After First-line Immunotherapy in Patients With Advanced NSCLC
CR1STAL
A Multicenter, Prospective Clinical Study of Circulating Tumor DNA Analysis to Monitor the Risk of Progression After Long-term Benefit to First-line Immunotherapy in Patients With Advanced NSCLC (CR1STAL)
1 other identifier
observational
100
1 country
1
Brief Summary
This study aims to explore the correlation of circulating tumor DNA(ctDNA) and the risk of progression in patients with advanced NSCLC who have long-term benefit from first-line immunotherapy (PFS 12 months)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jan 2022
Longer than P75 for all trials
1 active site
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
First Submitted
Initial submission to the registry
January 1, 2022
CompletedFirst Posted
Study publicly available on registry
January 20, 2022
CompletedStudy Start
First participant enrolled
January 24, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 30, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
December 30, 2025
CompletedApril 23, 2025
February 1, 2025
3.9 years
January 1, 2022
April 17, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Progression-free survival (PFS)
The duration from study enrollment to disease progression or death, whichever occurs first.
3 years
Secondary Outcomes (4)
The correlation of ctDNA and risk of progression
3 years
Lead time
3 years
Incidence of adverse events
3 years
Overall survival (OS)
3 years
Other Outcomes (3)
Objective response rate (ORR)
3 years
Factors influencing ctDNA detection
3 years
Differences between ctDNA MRD and other peripheral blood biomarkers.
3 years
Study Arms (2)
Advanced NSCLC patients with long-term benefit after first-line immunotherapy (Tumor-informed group)
The ctDNA detection will be performed using a tumor-informed analysis approach. This method requires the availability of tumor tissue samples or a fixed-panel next-generation sequencing (NGS) test.
Advanced NSCLC patients with long-term benefit after first-line immunotherapy (Tumor-agnostic group)
The ctDNA detection will be performed using a tumor-agnostic analysis. This method does not require tumor tissue samples or an NGS testing panel, or in cases where tissue samples are available but fail to meet quality control standards.
Interventions
High-depth sequencing method is used to detecting ctDNA.
Eligibility Criteria
Clinically confirmed advanced NSCLC patients with long-term benefit after first-line immunotherapy
You may qualify if:
- Age ≥ 18 years old
- Advanced non-small cell lung cancer (stage IIIB-IV), pathological types limited to squamous cell carcinoma or non-squamous cell carcinoma, driver gene mutations (EGFR/ALK/ROS1) were negative
- General condition: ECOG score 0 or 1
- First-line monotherapy or combination immunotherapy
- The long-term benefit of immunotherapy was defined as PFS=12months
- Tumor tissue samples can be obtained at the time of enrollment, and at least 5 \~ 10 sections can be generated, and the pathological report indicates that the overall tumor content is not less than 10% or NGS testing with a fixed-panel is available; or no tumor tissue is available.
- At least one measurable lesion (except patients with CR after first-line treatment) can be evaluated according to RECIST1.1 standard.
- Have self-awareness, be able to understand the research scheme and voluntarily participate in the study, and can sign the informed consent form
- Have good compliance, be able to cooperate with the collection of specimens from each node and provide corresponding clinical information.
You may not qualify if:
- Serious primary diseases of the heart, liver and kidney
- Other malignant tumors within 3 years prior to diagnosis of NSCLC
- Women in pregnancy and lactation
- The active stage of human immunodeficiency virus (HIV) infection
- Patients with active systemic infection, pneumonia, tuberculosis, pericarditis
- Patients who cannot understand the content of the experiment and cannot cooperate and refuse to sign informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Fang Wulead
- Sun Yat-sen Universitycollaborator
- First Affiliated Hospital Xi'an Jiaotong Universitycollaborator
- Fujian Cancer Hospitalcollaborator
- Third Affiliated Hospital of Third Military Medical Universitycollaborator
- Xiangya Hospital of Central South Universitycollaborator
- Qinghai Province Tumor Hospitalcollaborator
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technologycollaborator
- Zhejiang Provincial People's Hospitalcollaborator
- Hunan Province Tumor Hospitalcollaborator
- Cancer Institute and Hospital, Chinese Academy of Medical Sciencescollaborator
- Second Affiliated Hospital, School of Medicine, Zhejiang Universitycollaborator
- Zhejiang Cancer Hospitalcollaborator
- The First Affiliated Hospital of Guangzhou Medical Universitycollaborator
- Inner Mongolia People's Hospitalcollaborator
- Guizhou Provincial People's Hospitalcollaborator
- The Third Xiangya Hospital of Central South Universitycollaborator
- Yueyang Central Hospitalcollaborator
- ZhuZhou Central Hospitalcollaborator
- Zhangjiajie Affiliated Hospital of Hunan Normal Universitycollaborator
- Loudi Central Hospitalcollaborator
- Chang Sha First Hospitalcollaborator
Study Sites (1)
Oncology Department,Second Xiangya Hospital of Central South University
Changsha, Hunan, 410011, China
Biospecimen
Plasma cell free DNA
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Target Duration
- 3 Years
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
January 1, 2022
First Posted
January 20, 2022
Study Start
January 24, 2022
Primary Completion
December 30, 2025
Study Completion
December 30, 2025
Last Updated
April 23, 2025
Record last verified: 2025-02