Exosomes in Rectal Cancer
Purpose
The primary aims of this study is to characterize exosomal biomarker levels in patients with locally advanced rectal cancer undergoing neoadjuvant chemoradiation therapy. Compare rates of exosomal expression before during and after chemoradiation therapy with pathologic response rates at the time of APR or LAR. The researchers will also examine the functionality of these exosomes in malignant colonic organoids and mouse models of colorectal cancer.
Condition
- Rectal Cancer
Eligibility
- Eligible Ages
- Over 18 Years
- Eligible Genders
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Male and Female Patients aged 18 and older - histologically proven diagnosis of rectal adenocarcinoma - will be receiving neoadjuvant chemoradiation therapy prior to a planned definitive surgical resection
Exclusion Criteria
- Age less than 18. - Patients who are unable or unwilling to undergo definitive surgery. - Patients with a prior history of pelvic external beam radiation, brachytherapy, or chemotherapy. - Patients with a prior history of cancer (excluding non-melanoma skin cancers). - Patients who are immunocompromised.
Study Design
- Phase
- Study Type
- Observational [Patient Registry]
- Observational Model
- Cohort
- Time Perspective
- Prospective
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
| Arm A | All patients enrolled will be placed in Arm A. Serum blood draw samples will be collected as well as additional data from medical records will be collected. This data includes demographic data, clinical information from notes, radiology images and reports, diagnostic test results, and procedure and pathology reports. |
|
Recruiting Locations
Kansas City, Kansas 66190
More Details
- Status
- Unknown status
- Sponsor
- University of Kansas Medical Center
Detailed Description
All male and female patients, aged 18 and older with a histologically proven diagnosis of rectal adenocarcinoma, treated on this study will receive neo adjuvant chemotherapy (consisting of 5 FU or capecitabine) given concurrently with external beam radiation therapy to a dose of 50.4 Gy in 28 fractions. Radiation treatments will be administered daily, Monday thru Friday. Within one week prior to beginning chemotherapy and radiation treatments, a serum sample will be obtained from each patient. Patients will also have serum samples collected every two weeks during radiation, and on the last day of radiation therapy, as well as at their one month follow up visit after completion of radiation and prior to planned surgery. A final serum sample will be collected within one month after definitive surgery. Each serum sample collected will be less than 50 mL. The study will involve obtaining serum samples from patients before during and after chemoradiation therapy. These serum samples will be analyzed to determine exosomal biomarker levels, which will be correlated with clinical, imaging, laboratory, and pathologic data obtained from the medical record. Additional data from the patients' medical records will be collected, including demographic data, clinical information from notes in the medical record, radiology images and reports, results of diagnositic tests, and information from procedure notes and pathology reports.