Predictive Value of ctDNA for NED Status in mCRC and Its Utility in Guiding Therapeutic Intervention (NCT05635630) | Clinical Trial Compass
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Predictive Value of ctDNA for NED Status in mCRC and Its Utility in Guiding Therapeutic Intervention
China110 participantsStarted 2022-06-24
Plain-language summary
The goal of this clinical trial is to detect the prognostic value of longitudinal monitoring circulating tumor DNA (ctDNA) for no evidence of disease (NED) status in metastatic colorectal cancer (mCRC) patients and its utility in guiding therapeutic intervention. The main questions it aims to answer are:
1. Whether ctDNA monitoring could evaluate NED status ahead of normal radiologic monitoring. What about the concordance of evaluating NED status by ctDNA monitoring compared with normal radiologic monitoring?
2. Whether the patients with ctDNA positive status could benefit from early therapeutic intervention.
Patients who receive any kinds of therapies with the aim of NED and are confirmed by clinical and radiologic examination will go through longitudinal ctDNA monitoring. According to the results of ctDNA monitoring, the patients will be divided into ctDNA positive group and ctDNA negative group. Patients in ctDNA positive group will receive individual therapeutic plan decided by the investigator. Patients in ctDNA negative group will receive regular examinations. When radiologic recurrences are confirmed, the patients will be re-evaluated for a second opportunity of radical resection.
Who can participate
Age range
18 Years – 85 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Age \> 18 years old. Both male and female are eligible.
. Late stage metastatic colorectal adenocarcinoma diagnosed by histology or cytology.
. With potential opportunity of achieving NED status (including liver metastasis, lung metastasis, solitary lymph node metastasis, ovarian metastasis or focal pelvic metastasis), regardless of neo-adjuvant therapy or transforming therapy.
. Patients who are intended for focal therapy, radical surgery, focal radiotherapy, radiofrequency ablation or interventional therapy (anhydrous alcohol injection or cryotherapy)
. Eastern Cooperative Oncology Group (ECOG) grade 1-2.
. Approve the informed consent.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Relapse-free survival (RFS) time
Timeframe: From date of surgery until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 2 years.
. Available for tumor sample obtained by resection or aspiration.
. Available for peripheral blood collection (10mL per tube for 2 tubes)
Exclusion criteria
. Cannot get histologic or cytologic diagnosis.
. Clinical tumor, node, and metastasis (cTNM) stage I-III according to the American Joint Committee on Cancer (AJCC), the 8th edition.
. Accompany with widespread metastasis and cannot achieve NED status by focal therapy, such as bone metastasis, peritoneum metastasis, diffuse liver or lung metastasis or malignant effusion, etc.
. Inadequate bone marrow reserve and organ function.
. Uncontrolled or severe systemic diseases, such as uncontrolled hyperplasia, severe infection, hepatitic B virus (HBV) infection, hepatitis C virus (HCV) infection, human immunodeficiency virus (HIV) infection, etc.