About this document "ctDNA MRD assay (Signatera™)": How long does ctDNA MRD assay (Signatera™) take to complete

According to the document, the Signatera™ ctDNA MRD assay has a turnaround time of 10-14 days from when the blood sample is submitted.

It's important to note that while the document provides this timing information, the test is currently considered investigational. According to the document, it is primarily being used in clinical trials for Stage II-III post-operative colorectal cancer patients.

For context on molecular testing timelines, the National Comprehensive Cancer Network (NCCN) Guidelines for Colorectal Cancer emphasize that molecular testing results should be available in a clinically appropriate timeframe to guide treatment decision-making. The American Society of Clinical Oncology (ASCO) guidelines also note that timing of molecular testing results is crucial for optimal patient care planning.

I recommend discussing with your healthcare provider:

1. The specific timing for your case
2. How this fits into your overall care plan
3. Whether this test is appropriate for your situation, given its investigational status

Sources:

• NCCN Guidelines for Colorectal Cancer
• ASCO Molecular Biomarker Testing Guidelines