NCT05234177 · Tempus AI
Tempus CRC Surveillance Study: A ctDNA Biomarker Profiling Study of Patients With CRC Using NGS Assays
What this study is about
The study is an observational conducted at multiple hospitals evaluation of participants with colorectal cancer (CRC) who will receive longitudinal plasma ctDNA biomarker profiling in addition to their standard-of-care therapy and disease surveillance.
View original scientific description
The study is an observational multicenter evaluation of participants with colorectal cancer (CRC) who will receive longitudinal plasma ctDNA biomarker profiling in addition to their standard-of-care therapy and disease surveillance.
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
- Known or suspected colorectal adenocarcinoma (Stage I to IVA disease)
- Planning to undergo or has undergone a surgical resection for suspected adenocarcinoma of the colon or rectum with curative intent.
- 18 years old or older
- Willing and able to provide informed consent
- Willing to have additional blood samples collected during routine surveillance visits
Exclusion criteria
- Not willing to have additional blood samples collected
- Pathology that is not consistent with colorectal adenocarcinoma
Where
- Fort Smith, Arkansas
- Fountain Valley, California
- Bethesda, Maryland
- Joplin, Missouri
- Springfield, Missouri
- St Louis, Missouri
- Omaha, Nebraska
- Goldsboro, North Carolina
- Canton, Ohio
- Cincinnati, Ohio
- Columbus, Ohio
- Toledo, Ohio
And 5 more locations — see the full list below.
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 May 6, 2025 · Source of record for eligibility and locations