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TAS-102 in ctDNA-defined Minimal Residual Disease in Colorectal Cancer After Completion of Adjuvant Chemotherapy

ABSTRACT: To measure the level of circulating tumor DNA (ctDNA) in the blood of colorectal cancer patients after 6 months of receiving TAS-102 therapy. ctDNA is genetic material from tumor cells that can be found and measured in the blood.

DISEASE(S): Neoplasm, Residual,Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 2719898 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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TAS-102, Irinotecan, and Bevacizumab in Pre-treated Metastatic Colorectal Cancer (TABAsCO), A Phase II Clinical Trial. ClinicalTrials.gov NCT04109924

Project description:Background: The efficacy of FOLFIRI plus an antiangiogenesis biologic agent as 2nd line therapy for metastatic colorectal adenocarcinoma is limited. TAS-102 is a novel oral antimetabolite with a distinct mechanism of action from fluoropyrimidines. We evaluated the antitumor efficacy of TAS-102, irinotecan and bevacizumab in patients with pre-treated, advanced colorectal adenocarcinoma in a multicenter, phase II, single-arm study. Methods: Patients with advanced colorectal adenocarcinoma who had progressed after oxaliplatin and fluoropyrimidine and were eligible for treatment with bevacizumab were treated with irinotecan, bevacizumab, and TAS-102 in 28-day cycles. The primary endpoint was progression-free survival (PFS). Results: We enrolled 35 evaluable patients. The study was positive. The median PFS was 7.9 (90% CI 6.2-11.8) months (vs. 6 months in historical control, p=0.018). The median overall survival was 16.5 (90% CI 9.8-17.5) months. Sixty-seven percent of patients experienced grade 3 or higher treatment-related adverse events. The most common toxicities were hematological (neutropenia) and gastrointestinal (diarrhea, nausea, and vomiting). Conclusions: Irinotecan, TAS-102 and bevacizumab is an active 2nd line therapy for patients with metastatic colorectal adenocarcinoma. Neutropenia is common and can affect dose density/intensity mandating use of G-CSF. A randomized study versus standard of care therapy is warranted.

2024-08-26 | GSE275628 | GEO

A phase II study of guadecitabien combined with irinotecan vs regorafenib or TAS-102 in previously treated metastatic colorectal cancer patients

Project description:A phase II study of guadecitabien combined with irinotecan vs regorafenib or TAS-102 in previously treated metastatic colorectal cancer patients

2023-03-31 | GSE226221 | GEO

Study of ctDNA Guided Change in Tx for Refractory Minimal Residual Disease in Colon Adenocarcinomas

Project description:This is a phase 1b, prospective, single arm, non-randomized, open-label clinical trial determining the efficacy of adjuvant trifluridine and tipiracil (TAS-102) in combination with irinotecan in patients with ctDNA positive colon adenocarcinoma.

| 2380082 | ecrin-mdr-crc

Analysis of ctDNA methylation induced by ionizing to different ograns

Project description:This study aims to compared ctDNA methylation status induced by ionizing to different ograns. SD rats were irradiated with local radaition to brain, lung or skin. Serum was collected and subjiected to ctDNA extraction. ctDNA were then treated by methylation-sensive bisulfite and sequencing.

2021-12-23 | GSE163763 | GEO

ctDNA methylation markers in diagnosis and prognosis of hepatocellular carcinoma

Project description:To develop diagnostic and prognostic biomarkers, we compared methylation profiles of HCC tissues and normal blood by analyzing 485,000 CpG markers and identified a HCC enriched methylation marker panel compared to that of normal blood. We found there was a highly correlation of methylation profiles between DNA from HCC cancer tissue and matched plasma ctDNA within the same patient. We then selected 10 markers from this panel and created a combined diagnosis score (cd-score) which showed high diagnostic specificity and sensitivity in both a training cohort and an independent validation cohort. We also showed the cd-score correlate highly with tumor load, treatment response and stage and is superior to that by AFP. We also showed the cd-score correlate highly with tumor load, treatment response and stage and is superior to that by AFP. Additional, we generated 8 markers from unicox and LASSO-cox analysis and created a combined prognosis score (cp-score) which could predict prognosis and survival. Together, these findings demonstrated the utility of ctDNA methylation markers in the diagnosis, treatment evaluation and prognosis of HCC.

2019-01-01 | GSE93203 | GEO

Expanded Access Study of TAS-102 in Patients With Metastatic Colorectal Cancer

Project description:The objective of the program is to provide access to TAS-102 to patients with metastatic colorectal cancer who are refractory to or failing standard chemotherapy, are new to therapy with TAS-102 and in whom therapy with TAS-102 is clinically indicated.

| 2177942 | ecrin-mdr-crc

Danish Assessment of Minimal Residual Disease by Liquid Biopsies

Project description:Approximately two-thirds of all colorectal cancer patients undergo surgery with the aim of curing them. However, despite the surgery, 20-25% of them experience relapse. It is possible to reduce the risk of relapse with chemotherapy, but as chemotherapy is associated with significant side effects, it is only given to patients at high risk of relapse. Currently, the risk is assessed based on an examination of the removed tumor tissue. In a previous research project, blood samples were taken after patients’ surgery and examined for the presence of circulating tumor DNA (ctDNA). When cancer cells in solid tumors die, they release DNA, which can be detected in the blood. DNA in the blood has a half-life of less than 2 hours, so if ctDNA is found in a blood sample taken, e.g., 14 days after surgery, the patient most likely still has cancer cells in their body. The results show that if a patient has ctDNA in their blood after surgery, the risk of relapse is high. The presence of ctDNA in the blood has the potential to be a better indicator of the risk of future relapse than the tumor examination used today. Therefore, ctDNA analysis has the potential to become a marker that will be used in the future clinical setting for monitoring colorectal cancer. The overall objective of this study is to confirm that ctDNA found in a blood sample after intended curative treatment for CRC is a marker of residual disease and risk of recurrence and is applicable in clinical practice.

| 109300 | ecrin-mdr-crc

A Comparison of Bevacizumab Plus TAS-102 and TAS-102 Monotherapy for Metastatic Colorectal Cancer: A Systematic Review and Meta-Analysis.

Project description:BackgroundsAs a new oral chemotherapy drug, TAS-102 is currently recommended as the third-line treatment for metastatic colorectal cancer (mCRC). Recently, studies have reported the efficacy of TAS-102 combined with bevacizumab in colon cancer patients after standard treatment fails. Here, we evaluated the efficacy and safety of TAS-102 combined with bevacizumab versus TAS-102 as a single agent by a systematic review and a meta-analysis.MethodsPubMed, Web of Science and Cochrane libraries were searched. Studies involving bevacizumab combined with TAS-102 in mCRC were included. Study characteristics (author, year of publication, country et al.), efficacy (disease control rate(DCR), progression-free survival(PFS), overall survival(OS)) and adverse effects were extract from studies. Forest plots were created based on Cox model analysis.ResultsAfter screening 550 studies, a total of 3 studies were included, which compared the safety and effectiveness of TAS-102 with or without bevacizumab. Analysis based on Cox regression showed that the combined treatment group had advantages in 6-month (OR= 2.93, 95% CI: 1.72 to 5.00, P<0.0001), 12-month(OR= 2.18, 95% CI: 1.24 to 3.81, P=0.006), and 18-month (OR=3.08, 95% CI: 1.34 to 7.12, P=0.008) OS. The combined treatment group demonstrated superiority in 6-month PFS rates (OR= 2.50, 95% CI: 1.18 to 5.31, P=0.02). The incidence of thrombocytopenia in the dual-drug treatment group was higher (OR= 1.96, 95% CI: 1.14 to 3.36 P=0.01). The proportion of serious adverse events were similar in tow groups (OR= 1.01, 95% CI: 0.76 to 1.34 P=0.93).ConclusionBevacizumab combined with TAS-102 could improve the prognosis of patients with mCRC who have failed standard treatment. In terms of side effects, the addition of bevacizumab did not increase serious adverse reactions, but the occurrence of thrombocytopenia was worth noting.

| S-EPMC8637322 | biostudies-literature

Phase 2 Study of CA102N Combined With TAS-102 Compared to Bevacizumab Combined With TAS-102 in Subjects With Relapsed and/or Refractory Metastatic Colorectal Cancer

Project description:HS-CA102N-103 is a Phase 2, randomized, open label study to evaluate efficacy, safety, and tolerability of CA102N combined with trifluridine/tipiracil (TAS-102) compared to bevacizumab combined with TAS-102 in subjects with metastatic colorectal cancer (mCRC) who failed the standard treatment (for eg, cancer that has relapsed after or is refractory to fluoropyrimidine, oxaliplatin and irinotecan-based chemotherapy).

| 92106 | ecrin-mdr-crc

Phase II study of TAS-102 in patients with metastatic colorectal cancer

Project description:Intervention name : TAS-102 Dosage And administration of the intervention : TAS-102 70 mg/m2 was administered orally twice a day for 5 days followed by 2 day rest and repeated two times this procedure. Control intervention name : Placebo Dosage And administration of the control intervention : Placebo was administered orally twice a day for 5 days followed by 2 day rest and repeated two times this procedure. Primary outcome(s): Overall survival To evaluate the overall survivals of TAS-102 versus placebo in patients with chemotherapy-refractory metastatic colorectal cancer Study Design: Randomized, double-blind, placebo-controlled, parallel-group comparative study

| 2610203 | ecrin-mdr-crc

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