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ctDNA Analysis to Monitor the Risk of Progression After First-line Immunotherapy in Patients With Advanced NSCLC

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)

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05198154
Acronym
CR1STAL
Enrollment
100
Registered
2022-01-20
Start date
2022-01-24
Completion date
2029-11-30
Last updated
2026-08-31

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

Conditions

Advanced Lung Non-Small Cell Carcinoma

Keywords

ctDNA, advanced lung cancer, first-line immunotherapy, the risk of progression, minimal residual disease (MRD), long-term benefit

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)

Detailed description

Evidence suggests that circulating tumor DNA (ctDNA) analysis can noninvasively identify minimal residual disease (MRD) in clinical oncology. The researches will be sharply increased about ctDNA potential clinical application in the near future. In the early stage of NSCLC, ctDNA has been indicated to identify those at high risk of recurrence after radical surgery. And this study will focus on those patients with advanced NSCLC who have long-term benefit from first-line immunotherapy (PFS 12 months). 20ml plasma will be collected concurrently with the imaging examination. Meanwhile, the investigators would like to explore the lead time of detectable ctDNA before regular imaging finding.

Interventions

DIAGNOSTIC_TESTctDNA detection

High-depth sequencing method is used to detecting ctDNA.

Sponsors

Hengyang Central Hospital
CollaboratorOTHER_GOV
Xiangtan Central Hospital
CollaboratorOTHER
Hunan University of Medicine General Hospital
CollaboratorOTHER
Hunan Provincial People's Hospital
CollaboratorOTHER
Fang Wu
Lead SponsorOTHER
Sun Yat-Sen University Cancer Center
CollaboratorOTHER
First Affiliated Hospital Xi'an Jiaotong University
CollaboratorOTHER
Fujian Cancer Hospital
CollaboratorOTHER_GOV
Third Affiliated Hospital of Third Military Medical University
CollaboratorOTHER
Xiangya Hospital of Central South University
CollaboratorOTHER
Qinghai Province Fifth People's Hospital
CollaboratorOTHER
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
CollaboratorOTHER
Zhejiang Provincial People's Hospital
CollaboratorOTHER
Hunan Cancer Hospital
CollaboratorOTHER
Cancer Institute and Hospital, Chinese Academy of Medical Sciences
CollaboratorOTHER
Second Affiliated Hospital, Zhejiang University, School of Medicine
CollaboratorOTHER
Zhejiang Cancer Hospital
CollaboratorOTHER
The First Affiliated Hospital of Guangzhou Medical University
CollaboratorOTHER
Inner Mongolia People's Hospital
CollaboratorOTHER
Guizhou Provincial People's Hospital
CollaboratorOTHER
The Third Xiangya Hospital of Central South University
CollaboratorOTHER
Yueyang Central Hospital
CollaboratorOTHER
ZhuZhou Central Hospital
CollaboratorOTHER
Zhangjiajie Affiliated Hospital of Hunan Normal University
CollaboratorUNKNOWN
Loudi Central Hospital
CollaboratorOTHER
Cancer Hospital of Guangxi Medical University
CollaboratorOTHER
First Affiliated Hospital of Kunming Medical University
CollaboratorOTHER
The Affiliated Hospital of Inner Mongolia Medical University
CollaboratorOTHER
Changsha Central Hospital
CollaboratorOTHER
Hunan Provincial Hospital of Traditional Chinese Medicine
CollaboratorUNKNOWN
Yiyang Central Hospital
CollaboratorUNKNOWN
Shaoyang Central Hospital
CollaboratorUNKNOWN
Jiangsu Cancer Institute & Hospital
CollaboratorOTHER
Second Affiliated Hospital of Xi'an Jiaotong University
CollaboratorOTHER
First Affiliated Hospital of Xinjiang Medical University
CollaboratorOTHER
Renmin Hospital of Wuhan University
CollaboratorOTHER
Changsha First Hospital
CollaboratorUNKNOWN
The Second People's Hospital of Huaihua
CollaboratorUNKNOWN
The First People's Hospital of Xiangtan City
CollaboratorUNKNOWN
Xiangxi Autonomous Prefecture People's Hospital
CollaboratorUNKNOWN
Chenzhou NO. 1 people's Hospital
CollaboratorUNKNOWN
Xiangya Changde Hospital
CollaboratorUNKNOWN
Wuhan TongJi Hospital
CollaboratorOTHER
The Third Hospital of Changsha
CollaboratorUNKNOWN
Yongzhou Center Hospital
CollaboratorUNKNOWN
Liaoning Cancer Hospital & Institute
CollaboratorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

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

Inclusion criteria

* 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.

Exclusion criteria

* 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.

Design outcomes

Primary

MeasureTime frameDescription
Progression-free survival (PFS)3 yearsThe duration from study enrollment to disease progression or death, whichever occurs first.

Secondary

MeasureTime frameDescription
The correlation of ctDNA and risk of progression3 yearsThe correlation of ctDNA and risk of progression during the erolled observation process
Lead time3 yearsLead time defined as the interval between ctDNA detection and imaging of progression.
Incidence of adverse events3 yearsthe incidence of adverse events during the whole observation time
Overall survival (OS)5 yearsOverall survival (OS) defined as the duration from study enrollment until death due to any cause. Subjects who are still alive at the end of the study observation period will be censored at the time of last known vital status.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 1, 2026