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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02132858
Other study ID # CGI-066
Secondary ID NCI-2014-00719CG
Status Completed
Phase
First received
Last updated
Start date July 2014
Est. completion date October 2022

Study information

Verified date May 2024
Source Fox Chase Cancer Center
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

This research trial studies genetic mutations in blood and tissue samples to see if they can be used to predict treatment response in patients with locally advanced rectal cancer undergoing chemoradiation. Studying samples of blood and tumor tissue in the laboratory from patients with cancer may help doctors learn more about genetic mutations or changes that occur in deoxyribonucleic acid (DNA) and help doctors understand how patients respond to treatment.


Description:

PRIMARY OBJECTIVES: I. To evaluate the tumor-specific mutation(s) detected using the CancerCodeā„¢ mutation panel as a predictor of pathologic response to chemoradiation for patients with rectal adenocarcinoma undergoing chemoradiation. SECONDARY OBJECTIVES: I. To assess the feasibility of utilizing biopsy specimens from locally advanced rectal adenocarcinoma to perform CancerCodeā„¢ mutation panel genetic testing. II. To assess disease-free survival (DFS) and overall survival (OS) of patients treated on study. III. To collect pilot data regarding the clonal heterogeneity of rectal adenocarcinoma, and the relationship of this heterogeneity with treatment response. IV. To evaluate the treatment response utilizing multiple fludeoxyglucose F 18-positron emission tomography (FDG-PET) parameters including heterogeneity and textural features as an exploratory study. OUTLINE: Patients undergo collection of blood and tissue samples for analysis via sequencing. After completion of study, patients are followed up every 3 months for 3 years.


Recruitment information / eligibility

Status Completed
Enrollment 43
Est. completion date October 2022
Est. primary completion date April 8, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Locally advanced rectal adenocarcinoma: T3-4NanyM0 or TanyN1-2M0 - Radiologically measurable or clinically evaluable disease - Provide informed written consent - Willing to return to enrolling medical site for all study assessments Exclusion Criteria: - Chemotherapy within 5 years prior to registration; (hormonal therapy is allowable if the disease free interval is >= 5 years) - Any prior pelvic radiation - Patients who are at high risk of complications from temporarily discontinuing anticoagulation for rectal cancer biopsies

Study Design


Intervention

Other:
cytology specimen collection procedure
Correlative studies
laboratory biomarker analysis
Correlative studies

Locations

Country Name City State
United States Fox Chase Cancer Center Philadelphia Pennsylvania

Sponsors (2)

Lead Sponsor Collaborator
Fox Chase Cancer Center National Cancer Institute (NCI)

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Other Progression-free survival (PFS) PFS will be calculated using the methods of Kaplan and Meier. If promising mutations are identified, survival between mutation positive and negative patients will be compared using the log-rank test. Up to 3 years
Other Overall survival OS will be calculated using the methods of Kaplan and Meier. If promising mutations are identified, survival between mutation positive and negative patients will be compared using the log-rank test. Up to 3 years
Other Changes in mutation profiles Any differences between pre- and post- test results (a different mutation status for any gene on the panel) will be considered evidence of a change. The overall proportion of patients exhibiting pre-post differences will be characterized, and particular genes of interest may be tested individually with an exact test of marginal homogeneity. Baseline to up to 3 years
Other PET-computed tomography parameters Maximum standardized uptake value will be calculated, as well as textural measures such as coarseness, busyness, contrast, and complexity. The Mann-Whitney-Wilcoxon tests will be used to examine association between image measures and response. Image measures before and after radiation using the Wilcoxon signed rank test for paired data will be compared and differences in textural measures across tumor grades 0-3 will be assessed using the Kruskal-Wallis test. Associations between textural measures and tumor mutation profiles will be explored, also using non-parametric tests. Up to 3 years
Primary Proportion of the randomly chosen samples that are successfully sequenced If >= 90% of the specimens (at least 72 out of 80) are useable, the method will be considered feasible. Up to 3 years
Primary Tumor response measured using the tumor regression grading system Whether mutations in any gene on the CancerCode mutation panel are associated with tumor response will be assessed. In each sample, the presence or absence of mutations (0/1) for each gene on the panel will be evaluated. Each gene will be tested separately for its association with tumor response using a two-sample Mann-Whitney-Wilcoxon test with a type-I error of 0.05 for a two-sided test. Up to 3 years
Secondary Tumor heterogeneity in patients with partial response to radiation Whether there are differences in the mutation profiles in the 4 tumor samples will be assessed, with differences being considered evidence of possible heterogeneity. Up to 3 years
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