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Genetic Testing in Screening Patients With Metastatic or Unresectable Colon or Rectal Cancer for a COLOMATE Trial

COLOMATE: Colorectal Cancer Liquid Biopsy Screening Protocol for Molecularly Assigned Therapy

Status
Terminated
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT03765736
Enrollment
199
Registered
2018-12-05
Start date
2020-04-20
Completion date
2023-12-01
Last updated
2025-08-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Metastatic Colon Adenocarcinoma, Metastatic Rectal Adenocarcinoma, Stage IIIA Colon Cancer AJCC v8, Stage IIIA Rectal Cancer AJCC v8, Stage IIIB Colon Cancer AJCC v8, Stage IIIB Rectal Cancer AJCC v8, Stage IIIC Colon Cancer AJCC v8, Stage III Colon Cancer AJCC v8, Stage IIIC Rectal Cancer AJCC v8, Stage III Rectal Cancer AJCC v8, Stage IVA Colon Cancer AJCC v8, Stage IVA Rectal Cancer AJCC v8, Stage IVB Colon Cancer AJCC v8, Stage IVB Rectal Cancer AJCC v8, Stage IVC Colon Cancer AJCC v8, Stage IV Colon Cancer AJCC v8, Stage IVC Rectal Cancer AJCC v8, Stage IV Rectal Cancer AJCC v8, Unresectable Colon Adenocarcinoma, Unresectable Rectal Adenocarcinoma

Brief summary

This trial screens patients with colon or rectal cancer that has spread to other places in the body (metastatic) or cannot be removed by surgery (unresectable) for genetic mutations for recommendation to a molecularly assigned therapy. Identifying gene mutations may help patients enroll onto target companion trials that target these mutations.

Detailed description

PRIMARY OBJECTIVES: I. To perform blood-based genomic profiling on patients with treatment refractory metastatic colorectal cancer (CRC) to facilitate accrual to molecularly assigned therapies. II. To facilitate clinically annotated genomic analyses. OUTLINE: Patients submit blood samples for genetic testing.

Interventions

OTHERGenetic Testing

Undergo genetic testing

Sponsors

National Cancer Institute (NCI)
CollaboratorNIH
Academic and Community Cancer Research United
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Histological confirmation of adenocarcinoma of the colon or rectum that is metastatic and/ or unresectable * Progression, intolerance, or contraindication to a fluoropyrimidine (e.g., 5- fluorouracil or capecitabine), oxaliplatin, irinotecan, an anti-VEGF monoclonal antibody (bevacizumab, ziv-aflibercept, or ramucirumab), and an anti-PD-1 monoclonal antibody (nivolumab or pembrolizumab) if tumor has deficient mismatch repair proteins (dMMR) or is microsatellite instability-high (MSI-H) * For patients with KRAS and NRAS wild-type tumors, progression, intolerance, or contraindication to an anti-EGFR monoclonal antibody (cetuximab or panitumumab) * Note: If tissue is known to be positive for HER2 expression (IHC 3+) or the tumor has ERBB2 (HER2) amplification detected by a Clinical Laboratory Improvement Act (CLIA)-certified assay, prior treatment with anti-EGFR therapy is not required * At least one site of disease that is measurable by Response Evaluation Criteria in Solid Tumors (RECIST) criteria (version 1.1) that has not been previously irradiated; if the patient has had previous radiation to the target lesion(s), there must be evidence of progression since the radiation * Life expectancy \>= 3 months per estimation of investigator * Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0, 1, or 2 * Capable of understanding and complying with the protocol requirements and has signed the informed consent document * Satisfy at least one of the following two conditions: * Willing and able to provide blood sample for screening purposes * Guardant 360 testing completed =\< 60 days prior to registration

Exclusion criteria

* Evidence within the last 3 years of another malignancy which required systemic treatment. EXCEPTIONS: Non-melanotic skin cancer, carcinoma-in-situ of the cervix, or localized prostate cancer with a current PSA of \< 1.0mg/dL on 2 successive evaluations, at least 90 days apart, with the most recent evaluation no more than 4 weeks prior to registration * Unable or unwilling to abide by the study protocol or cooperate fully with the investigator or designee * History of solid organ transplantation * Pregnant or planning to become pregnant within the next 12 months

Design outcomes

Primary

MeasureTime frameDescription
The Proportion of Patients Who Have an Actionable Genomic Profile6 monthsThis is defined as a patient who received a trial recommendation per the COLOMATE companion trial recommendation form. Will be presented as a point estimate along with a 95% confidence interval (by Wald asymptotic confidence limit).
Companion Trial Enrollment3.5 yearsThis is defined as a patient who has an actionable genomic profile that enrolls in their recommended companion trial. Will be presented as a point estimate along with a 95% confidence interval (by Wald asymptotic confidence limit).

Countries

United States

Participant flow

Participants by arm

ArmCount
Screening (Genetic Testing)
Patients submit blood samples for genetic testing. Genetic Testing: Undergo genetic testing
197
Total197

Baseline characteristics

CharacteristicScreening (Genetic Testing)
Age, Continuous57.4 years
STANDARD_DEVIATION 11.78
Ethnicity (NIH/OMB)
Hispanic or Latino
16 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
174 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
7 Participants
Primary Tumor Site
Left
146 Participants
Primary Tumor Site
Multiple/Other
11 Participants
Primary Tumor Site
Right
40 Participants
Race (NIH/OMB)
American Indian or Alaska Native
6 Participants
Race (NIH/OMB)
Asian
15 Participants
Race (NIH/OMB)
Black or African American
24 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
19 Participants
Race (NIH/OMB)
White
132 Participants
Region of Enrollment
United States
197 participants
Sex: Female, Male
Female
90 Participants
Sex: Female, Male
Male
107 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 0
other
Total, other adverse events
0 / 0
serious
Total, serious adverse events
0 / 0

Outcome results

Primary

Companion Trial Enrollment

This is defined as a patient who has an actionable genomic profile that enrolls in their recommended companion trial. Will be presented as a point estimate along with a 95% confidence interval (by Wald asymptotic confidence limit).

Time frame: 3.5 years

Population: All eligible patients who had an actionable genomic profile were included in analysis

ArmMeasureValue (NUMBER)
Screening (Genetic Testing)Companion Trial Enrollment26.76 percent of participants
Primary

The Proportion of Patients Who Have an Actionable Genomic Profile

This is defined as a patient who received a trial recommendation per the COLOMATE companion trial recommendation form. Will be presented as a point estimate along with a 95% confidence interval (by Wald asymptotic confidence limit).

Time frame: 6 months

Population: All eligible patients whose genomic profile was available for COLOMATE steering committee review are included in analysis

ArmMeasureValue (NUMBER)
Screening (Genetic Testing)The Proportion of Patients Who Have an Actionable Genomic Profile37.17 percent of participants

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026