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Circulating Tumor DNA Testing in Predicting Treatment for Patients with Stage IIA Colon Cancer After Surgery, COBRA Trial

Multiple Cancer Types

This phase II/III trial studies how well circulating tumor deoxyribonucleic acid (ctDNA) testing in the blood works to identify patients with stage IIA colon cancer who might benefit from additional treatment with chemotherapy after surgery. ctDNA are small pieces of genetic materials (DNA) that are shed by tumors into the blood. Finding ctDNA in the blood means that there are very likely small amounts of cancer remaining after surgery that may not be detectable using other tests, such as medical imaging. Testing for ctDNA levels may help identify patients with colon cancer who benefit from receiving chemotherapy after surgery. It is not yet known whether giving additional treatment with chemotherapy after surgery to patients who test positive for ctDNA and are at low risk for cancer recurrence would extend their time without disease compared to the usual approach (active surveillance).
Colon, Rectal
II/III
Agarwal, Rajiv
NCT04068103
SWOGGI005

Using Cancer Cells in the Blood (ctDNA) to Determine the Type of Chemotherapy that will Benefit Patients who Have Had Surgery for Colon Cancer, (CIRCULATE-US)

Multiple Cancer Types

This phase II/III trial aims to determine the type of chemotherapy that will benefit patients who have had surgery for their stage II or III colon cancer based on presence or absence of circulating tumor deoxyribonucleic acid (ctDNA). In ctDNA positive patients, this trial compares the effect of usual chemotherapy versus mFOLFIRINOX. In ctDNA negative patients, this trial compares the effect of usual chemotherapy versus ctDNA testing every 3 months to determine which approach might be better to prevent colon cancer from returning. Oxaliplatin is in a class of medications called platinum-containing antineoplastic agents. It works by damaging cells DNA and may kill cancer cells. Leucovorin is in a class of medications called folic acid analogs. It works by protecting healthy cells from the effects of chemotherapy medications while allowing chemotherapy agent to enter and kill cancer cells. Fluorouracil is in a class of medications called antimetabolites. It stops cells from making DNA and may slow or stop the growth of cancer cells. Capecitabine is in a class of medications called antimetabolites. It Is taken up by cancer cells and breaks down to a substance that kills cancer cells. Irinotecan is in a class of antineoplastic medications called topoisomerase I inhibitors. It works by stopping the growth of cancer cells. This trial may help doctors determine what kind of chemotherapy to recommend to colon cancer patients based on the presence or absence of ctDNA after surgery for colon cancer.
Colon, Rectal
II/III
Ciombor, Kristen
NCT05174169
SWOGGI008

Lower-Dose Chemoradiation in Treating Patients with Early-Stage Anal Cancer, the DECREASE Study

Rectal

This phase II trial studies how well lower-dose chemotherapy plus radiation (chemoradiation) therapy works in comparison to standard-dose chemoradiation in treating patients with early-stage anal cancer. Drugs used in chemotherapy, such as mitomycin, fluorouracil, and capecitabine, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high-energy x-rays to kill tumor cells and shrink tumors. Giving chemotherapy with radiation therapy may kill more tumor cells. This study may help doctors find out if lower-dose chemoradiation is as effective and has fewer side effects than standard-dose chemoradiation, which is the usual approach for treatment of this cancer type.
Rectal
II
Eng, Cathy
NCT04166318
ECOGGIEA2182

Study of Trastuzumab Deruxtecan (T-DXd) vs Investigator's Choice Chemotherapy in HER2-low, Hormone Receptor Positive, Metastatic Breast Cancer

Breast

This study will evaluate the efficacy, safety and tolerability of trastuzumab deruxtecan
compared with investigator's choice chemotherapy in human epidermal growth factor receptor
(HER)2-low, hormone receptor (HR) positive breast cancer patients whose disease has
progressed on endocrine therapy in the metastatic setting.
Breast
III
Rexer, Brent
NCT04494425
VICCBRE2072