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Frequently
Asked Questions (FAQ)
For patients
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What is the RadToxâ„¢ test and how does it work?RadToxâ„¢ is a liquid biopsy test that quantifies circulating cell-free DNA (cfDNA) levels in plasma to monitor cancer treatment response and prognosis, using proprietary isobDNAâ„¢ technology.
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What are the main advantages of the RadToxâ„¢ test over other liquid biopsy tests of the same indications?Key advantages include pan-cancer applicability, earlier detection of treatment response than imaging, small sample requirement, cost-effectiveness, and rapid turnaround time.
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How does the RadToxâ„¢ test complement imaging and other diagnostic tests?RadToxâ„¢ provides real-time insights into tumor dynamics and treatment response, often earlier than imaging, and complements imaging and tissue biopsies for comprehensive monitoring.
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Is RadToxâ„¢ ready for clinical use and covered by insurance?Yes, RadToxâ„¢ is a CLIA-certified LDT, and is covered by Medicare and some private insurers starting January 2024.
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For which cancer types is the RadToxâ„¢ test suitable?RadToxâ„¢ test is a pan-cancer test suitable for monitoring treatment responses and tumor recurrence across all solid tumor types and stages, without the need for prior tumor genomic profiling.
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How frequently can the RadToxâ„¢ test be performed?RadToxâ„¢ can be performed as frequently as weekly or biweekly during active treatment, and monthly during surveillance, enabling continuous monitoring.
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What is the turnaround time for RadToxâ„¢ test results?The RadToxâ„¢ test has a rapid turnaround time of approximately 5-7 days, facilitating timely clinical decision-making.
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How does the RadTox test compare to ctDNA (circulating tumor DNA) tests?While ctDNA tests provide genomic insights, RadToxâ„¢ quantifies total cfDNA levels, offering a complementary perspective on tumor burden and treatment response.
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Can the RadToxâ„¢ test predict treatment outcomes or prognosis?Yes, studies show that baseline cfDNA levels and changes during treatment can be prognostic for outcomes like overall survival and progression-free survival.
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How sensitive is the RadToxâ„¢ test in detecting molecular residual disease or tumor recurrence?RadToxâ„¢ can detect significant increases in cfDNA levels that may indicate molecular residual disease (MRD) or tumor recurrence, often earlier than imaging or conventional biomarkers.
If you haven't found the answer you're looking for or would prefer to speak with someone directly, our customer service team is here to assist you. Feel free to reach out to us by calling 800-246-8878 or emailing
radtox@diacarta.com
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