NCT07224789 · City of Hope Medical Center
Liquid Biopsy for Early Detection of Colorectal Cancer Using Circular RNA
(CIRCLE)
What this study is about
Colorectal cancer (CRC) is a leading cause of cancer-related deaths worldwide. This study aims to develop a non-invasive liquid biopsy assay using plasma-derived cell-free circular RNAs (cf-circRNAs) for early and accurate detection of colorectal cancer.
View original scientific description
Colorectal cancer (CRC) is a leading cause of cancer-related deaths worldwide. This study aims to develop a non-invasive liquid biopsy assay using plasma-derived cell-free circular RNAs (cf-circRNAs) for early and accurate detection of colorectal cancer.
Interventions
DIAGNOSTIC_TEST
cf-circRNA assay
Circular RNA detection in plasma or serum by RT-qPCR
Primary outcome measures
Sensitivity
Time frame: Through study completion, an average of 1 year
Proportion of early-stage (Stage I-II) colorectal cancer patients correctly identified as positive by the circRNA-based diagnostic model.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Adults (≥18 years old)
- Histologically confirmed colorectal cancer (Stage I-III)
- Availability of pre-treatment plasma samples
- Written informed consent provided
Exclusion criteria
- History of other active malignancies within the past 5 years
- Poor sample quality or hemolysis
- Inability to provide informed consent
Where
- Duarte, California
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jul 7, 2026 · Source of record for eligibility and locations