Circulating Cell-Free Tumor DNA Testing in Guiding Treatment for Patients With Advanced or Metastatic Colorectal Cancer
Public ClinicalTrials.gov record NCT03844620. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Randomized Study Evaluating Tailoring of Advanced/Metastatic Colorectal Cancer (CRC) Therapy Using Circulating Cell-Free Tumor DNA (ctDNA) (TACT-D)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This phase II trial studies circulating cell-free tumor DNA testing to guide treatment with regorafenib or TAS-102 in patients with colorectal cancer that has spread to other areas of the body. Studying samples of blood from patients with colorectal cancer may help doctors understand how well patients respond to treatment. Regorafenib and TAS-102 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. It is not yet known how well ctDNA testing works in guiding treatment with regorafenib and TAS-102 for patients with advanced or metastatic colorectal cancer.
Study identification
- NCT ID
- NCT03844620
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 100 participants
Conditions and interventions
Conditions
- Refractory Colorectal Carcinoma
- Stage III Colorectal Cancer AJCC v8
- Stage IIIA Colorectal Cancer AJCC v8
- Stage IIIB Colorectal Cancer AJCC v8
- Stage IIIC Colorectal Cancer AJCC v8
- Stage IV Colorectal Cancer AJCC v8
- Stage IVA Colorectal Cancer AJCC v8
- Stage IVB Colorectal Cancer AJCC v8
- Stage IVC Colorectal Cancer AJCC v8
Interventions
- Best Practice Other
- Laboratory Procedure Other
- Quality-of-Life Assessment Other
- Questionnaire Administration Other
- Regorafenib Drug
- Trifluridine and Tipiracil Hydrochloride Drug
Other · Drug
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 28, 2019
- Primary completion
- Aug 30, 2028
- Completion
- Aug 30, 2028
- Last update posted
- Aug 6, 2026
2019 – 2028
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| M D Anderson Cancer Center | Houston | Texas | 77030 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03844620, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 6, 2026 · Synced Sep 4, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03844620 live on ClinicalTrials.gov.