Evaluating The Response to Pre-Operative Chemotherapy and/or Radiation Therapy For Rectal Cancer Using Three-Dimension Transrectal Ultrasound

Traditional transrectal ultrasound (TRUS) is a technique used to help determine the stage of rectal cancer. All patients at Memorial Sloan-Kettering Cancer Center with rectal cancer have an ultrasound at the beginning of their treatment to accurately determine the depth of penetration (how deep into the rectal wall the tumor goes) and lymph node involvement of their tumor. This information helps determine the best way to treat the patient's disease. Three-dimensional TRUS (3-D TRUS) is a new form of ultrasound that gives us all of the information of traditional ultrasound in addition to being able to view the tumor in 3-dimensions. This image can be stored and analyzed to evaluate the tumor size and volume as well as determine the unique shape of the tumor. Chemoradiotherapy before surgery is considered standard of care for most rectal cancers.

Currently, there is no accurate way to determine whether or not the tumor has responded to the pre-operative radiation therapy. The purpose of this study is to evaluate the response of rectal cancer to pre-operative chemotherapy and/or radiation therapy using 3-D TRUS to measure the volume of the tumor before and after chemoradiotherapy.

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Key information

Conditions

Rectal Cancer Colorectal Neoplasms Digestive System Diseases Digestive System Neoplasms Gastrointestinal Diseases Gastrointestinal Neoplasms Intestinal Diseases Intestinal Neoplasms Neoplasms Neoplasms by Site Rectal Diseases Rectal Neoplasms

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Memorial Sloan Kettering Cancer Center

New York, 10065, United States

About this study

Transrectal ultrasound (TRUS) is widely accepted as an accurate and effective technique for staging of rectal cancer. The decision to administer pre-operative chemotherapy/radiation therapy is often made based on the results of the TRUS. The greatest limitation of TRUS is its operator-dependence. Three-dimensional TRUS (3-D TRUS) is a new modality that provides all of the information of traditional TRUS as well as the ability to provide three dimensional views of the tumor. This provides greater detail regarding the configuration of the tumor as well as the ability to calculate tumor volume. The results of 3-D TRUS are interpreted after the study and thus, operator-dependence is reduced. There are no currently accepted techniques that allow for objective and accurate assessment of a rectal tumor's response to pre-operative treatment short of post-operative pathologic evaluation. Our objectives are to evaluate the ability of 3-D TRUS to quantify the tumor's response to pre-operative radiation therapy and/or chemotherapy and to correlate these findings with post-operative pathologic examination of the specimen. These objectives can be accomplished with 2 ultrasounds, one before treatment and one before surgery. All patients with biopsy-proven (with pathology confirmed at MSKCC) rectal cancer are eligible for the study. The size, volume and depth of penetration and lymph node involvement will all be assessed during both ultrasound examinations. Our findings will then be compared to those found at post-operative pathologic examination. These data will then be analyzed to determine if 3-D TRUS was accurate in predicting the tumor's response to preoperative treatment.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

biopsy proven rectal cancer (path confirmed at MSKCC)
able to provide consent for 3-D TRUS
eligible for pre-operative chemotherapy and/or radiation therapy

Exclusion criteria

unable to provide informed consent
unable to tolerate 3-D TRUS either pre- or post-chemo/RT
unable to tolerate full course of chemotherapy and/or radiation therapy

Treatment and study plan

Transrectal ultrasound 3-D (TRUS)

Other

Transrectal ultrasound (TRUS) is widely accepted as an accurate and effective technique for staging of rectal cancer. The decision to administer pre-operative chemotherapy/radiation therapy is often made based on the results of the TRUS. Three-dimensional TRUS (3-D TRUS) is a new modality that provides all of the information of traditional TRUS as well as the ability to provide three dimensional views of the tumor.

Primary outcomes

To measure the response of primary rectal cancer to neoadjuvant chemotherapy and/or radiation therapy using 3-D TRUS

Time frame: 6 years

Secondary outcomes

To correlate these findings with post-operative pathologic examination

Time frame: 6 years

Sponsors and collaborators

Lead sponsor

Memorial Sloan Kettering Cancer Center

Other

Registry information

Official study title

Evaluating The Response to Pre-Operative Chemotherapy and/or Radiation Therapy For Rectal Cancer Using Three-Dimension Transrectal Ultrasound (3-D TRUS) - A Pilot Project

Important dates

Study start: 2003
Primary completion: 2012
Study completion: 2012
First posted: Jan 18, 2008
Registry last updated: Sep 27, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.

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