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Colon Adjuvant Chemotherapy Based on Evaluation of Residual Disease
Overall Recruitment Status: Active, currently enrolling
Official Title
Colon Adjuvant Chemotherapy Based on Evaluation of Residual Disease
Region Sponsors
California - Northern
NRG Oncology
Acronym KP IRB No.
Study Type Phase
Clinical Trial Phase III
Study Population Description
This Phase II/III trial will evaluate the what kind of chemotherapy to recommend to patients based on the presence or absences of circulating tumor DNA (ctDNA) after surgery for colon cancer.
Detailed Description
Gender Age Limit
Male & Female
Inclusion Criteria
  • The patient must have an ECOG performance status of 0 or 1.
  • Patients must have histologically/pathologically confirmed colon adenocarcinoma (T1-3, N1/N1c) with R0 resection accordingly to AJCC 8th edition criteria. NOTE: Patients with pathologic stages II or IIIC colon adenocarcinoma with R0 resection who have a commercially obtained Signatera™ ctDNA+ve assay result post-operatively meeting all timelines and eligibility requirements otherwise, are eligible for enrollment and inclusion in Cohort B.
  • The distal extent of the tumor must be greater than or equal to 12 cm from the anal verge on colonoscopy or above the peritoneal reflection as documented during surgery or on pathology specimen (i.e., excluding rectal adenocarcinomas warranting treatment with chemoradiation).
  • The patient must have had an en bloc complete gross resection of tumor (curative resection). Patients who have had a two-stage surgical procedure, to first provide a decompressive colostomy and then in a later procedure to have the definitive surgical resection, are eligible.
  • The resected tumor specimen and a blood specimen from patients with Stage IIIA or Stage IIIB colon cancer must have central testing for ctDNA using the Signatera™ assay by Natera.
Exclusion Criteria
  • Colon cancer histology other than adenocarcinoma (i.e., neuroendocrine carcinoma, sarcoma, lymphoma, squamous cell carcinoma, etc.).
  • Pathologic, clinical, or radiologic overt evidence of metastatic disease. This includes isolated, distant, or non-contiguous intra-abdominal metastases, even if resected.
  • Tumor-related bowel perforation.
  • History of prior invasive colon malignancy, regardless of disease-free interval.
  • History of bone marrow or solid organ transplantation (regardless of current immunosuppressive therapy needs). Bone grafts, skin grafts, corneal transplants and organ/tissue donation are not exclusionary.

Keywords and/or Specific Medical Conditions
  • Gastroenterology
  • Oncology (Adult)
KP Clinical Facility
  • All Kaiser Permanente Northern California Medical Centers
Clinical Area
  • Gastroenterology
  • Oncology (Adult)

Principal Investigator:
Tatjana Kolevska
Contact Information:
- Desiree S Goldstein
-Central Valley-Manteca

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