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CompletedNCT03563651Updated Nov 18, 2021

Collection of Blood, Urine, and Stool to Monitor MetastaticColorectal Cancers

An observational study in Stage III Colorectal Cancer AJCC v8, Stage IIIA Colorectal Cancer AJCC v8 and Stage IIIB Colorectal Cancer AJCC v8, sponsored by University of Southern California. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-11-18.

Sponsored by University of Southern California · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
29
Ages
18 Years and older
Sex
All
01

Study summary

This trial studies the monitoring of therapy and progression by collecting blood, urine, and stool from participants with colorectal cancer that has spread to other places in the body or cannot be removed by surgery. Studying samples of blood, urine, and stool from participants with colorectal cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer.

Read the detailed description

PRIMARY OBJECTIVES:

I. Detection of mutated Kras in urine specimen of patients with Kras mutated metastatic colon cancer on first, second, or third line therapy.

II. Detection of new Kras in urine in patients without Kras mutated metastatic colon cancer on therapy which includes anti-EGFR antibodies (cetuximab or panitumumab).

SECONDARY OBJECTIVES:

I. Changes of the stool microbiome with chemotherapy and at progression of the disease.

DESCRIPTIVE OBJECTIVES:

I. Changes in the quantity of mutated Kras, Braf or PI3K in urine deoxyribonucleic acid (DNA) over the cycles of first line therapy.

II. Associations between the quantity of mutated Kras, Braf or PI3K in urine DNA, molecular make up of circulating tumor cells (CTCs), cell free DNA and progression over the course of first line therapy.

III. Feasibility of detection of exosome in the plasma of colorectal cancer patients on first line chemotherapy in Dr. Fabbri?s lab at Children?s Hospital Los Angeles.

IV. Feasibility of detection of tumor DNA in the plasma of colorectal cancer patients on first line chemotherapy.

OUTLINE:

Participants undergo collection of blood and urine at baseline, on day 1 of courses 1, 2, and 3, at restaging, and at disease progression. Participants may undergo collection of stool at baseline, on day 1 of course 2, and at disease progression. Participants also undergo biopsy within 4 weeks of disease progression.

02

Conditions studied

  • 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
03

In context

Colorectal Neoplasms

5,599 studies on the registry are indexed under Colorectal Neoplasms; 1,459 are open to participants now.

This study's enrollment of 29 is below the median of 250 across 1,226 observational studies indexed under Colorectal Neoplasms.

Browse Colorectal Neoplasms studies →

Lead sponsor

University of Southern California is the lead sponsor of 773 studies on the registry; 135 are open to participants now.

Of its 68 completed or terminated interventional studies of FDA-regulated products, 32 (47%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Participants with metastatic/unresectable colorectal cancer who will undergo first, second, or third line therapy at USC facilities will be recruited for this study.

Eligibility criteria

Inclusion Criteria:

  • All patients with metastatic/unresectable colorectal cancer who will undergo first, second, or third line therapy; the participating investigator will select treatment, however, patients with Kras wild type must receive anti-EGFR therapy to be eligible for this study
  • Subject consent to enrollment on the protocol
  • Histologically confirmed metastatic or un-resectable colorectal cancer, known Kras status; knowledge of other mutations is optional
  • Willingness to undergo biopsy at the time of progression
  • Willingness to follow the study instructions for collection of specimens
  • Available archival tissue
05

Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
29 participants (actual)
Biospecimen retention
Samples with dna

Groups and cohorts

  • Ancillary-Correlative (biospecimen collection, biopsy)

    Participants undergo collection of blood and urine at baseline, on day 1 of courses 1, 2, and 3, at restaging, and at disease progression. Participants may undergo collection of stool at baseline, on day 1 of course 2, and at disease progression. Participants also undergo biopsy within 4 weeks of disease progression.

    Procedure: Biopsy · Procedure: Biospecimen Collection · Other: Laboratory Biomarker Analysis · Other: Questionnaire Administration

Interventions

  • ProcedureBiopsy

    Undergo biopsy

    Also known as: Bx

  • ProcedureBiospecimen Collection

    Undergo collection of blood, urine, and stool

  • OtherLaboratory Biomarker Analysis

    Correlative studies

  • OtherQuestionnaire Administration

    Ancillary studies

06

What researchers measure

Primary outcomes

  1. Detection rates of Kras, Braf, or PI3K tumor deoxyribonucleic acid (DNA) extracted from urine in patients with pre-existing mutations

    Mutation detection rate will be estimated by gene and treatment cycle in each cohort. The quantities of mutated Kras, Braf, or PI3K will be estimated using means and standard deviation if the distribution of the quantities is compatible with normal distribution. Otherwise, medians, ranges and interquartiles will be used. The changes in the mutation status and quantities of Kras, Braf, and PI3K before and after starting the first line therapy will be estimated using contingency tables and plots.

    Time frame: Up to 5 years

  2. Detection rates of Kras, Braf, or PI3K tumor DNA extracted from urine in patients without pre-existing mutations

    Mutation detection rate will be estimated by gene and treatment cycle in each cohort. The quantities of mutated Kras, Braf, or PI3K will be estimated using means and standard deviation if the distribution of the quantities is compatible with normal distribution. Otherwise, medians, ranges and interquartiles will be used. The changes in the mutation status and quantities of Kras, Braf, and PI3K before and after starting the first line therapy will be estimated using contingency tables and plots.

    Time frame: Up to 5 years

07

Study locations

1 site
  • USC / Norris Comprehensive Cancer Center
    Los Angeles, California 90033, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 18, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03563651
Lead sponsor
University of Southern California
Collaborators
National Cancer Institute (NCI)
Responsible party
Sponsor
First posted
Jun 20, 2018
Start date
Feb 6, 2014
Primary completion
May 28, 2020
Completion
May 28, 2020
Last update
Nov 18, 2021

Study contacts

Afsaneh Barzi, MD
principal investigator · University of Southern California

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2021. You cannot join it, but the record below documents what was studied.

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