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2 Phase Comparison of Pre-operative CT and PET Images for Metastatic Colorectal Cancer

A 2 Phase Comparison of Pre-operative CT AND PET Images in the Intraoperative Detection of Disease to a Hand-held Probe, and to an Intraoperative CT Scan in Patients Undergoing Surgery for Metastatic Colorectal Cancer.

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01821105
Enrollment
21
Registered
2013-03-29
Start date
2004-03-31
Completion date
2009-11-30
Last updated
2016-03-02

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

Conditions

Recurrent Colon Cancer, Recurrent Rectal Cancer, Stage IV A Bladder Cancer, Stage IV A Rectal Cancer, Stage IV B Colon Cancer, Stage IV B Rectal Cancer

Keywords

computed tomography, CT scan, positron emission tomography, PET, Metastatic Colorectal Cancer

Brief summary

This pilot phase II studies how well computed tomography (CT) and positron emission tomography (PET) imaging works in detecting disease in patients undergoing surgery for metastatic colorectal cancer. Diagnostic procedures, such as CT and PET scans, done before and during surgery may help find colorectal cancer and help guide surgery

Detailed description

PRIMARY OBJECTIVES: I. To determine the feasibility of rigidly (linearly) registering PET to CT images and applying this fused dataset to guide surgery with an image-guided navigation system and a handheld positron probe in order to facilitate disease detection and improve resection accuracy in advanced stage colorectal cancer. II. To complete development of software for the nonlinear registration of PET and CT datasets. OUTLINE: Patients undergo preoperative whole-body PET scans and CT scans of the abdomen and pelvis. Patients then receive 18 F fludeoxyglucose (FDG) intravenously (IV) 60-90 minutes prior to surgery and undergo intraoperative CT scans using a handheld probe and computer navigation system.

Interventions

PROCEDUREPET Scan

All patients will receive whole body PET scans (chest-abdomen-pelvis).

PROCEDURECT Scan

All patients will receive CT scans of the abdomen and pelvis with contrast.

RADIATIONfludeoxyglucose F 18

Given IV

Undergo computer-aided detection/diagnosis during surgery

Sponsors

Ohio State University Comprehensive Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients with histologically-confirmed colorectal carcinoma and preoperative PET scan with evidence of hypermetabolic lesions suspicious for cancer will be eligible for this study. In cases of primary cancer, there must be a tissue-confirmed diagnosis. In recurrent cases, patients must have clinical evidence by CT or MRI of disease suitable for resection. * Patients must be candidates for clinically indicated surgery. * Patients with recurrent disease may have had prior surgery and/or chemotherapy with no limit to the number of prior therapeutic procedures or chemotherapeutic regimens. * Patients must have a performance status of 0, 1 or 2 by ECOG(Eastern Cooperative Oncology Group)standards. * Patients must give written informed consent including consent to have IV line placed for FDG administration. * Patients must be at least 18 years of age. Children under the age of 18 are excluded from the study due to the rarity of colorectal cancer in children. * Because radiolabeled agents are known to be teratogenic, women of child-bearing potential and men must agree to use an acceptable form of contraception prior to study entry and for the duration of the study participation. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. * Organ function requirements: Patients must have organ and marrow function adequate to undergo laparotomy. Specifically: * Serum creatinine \< 2.0 mg/dl * Serum bilirubin \< 2.0 mg/dl * AST(aspartate aminotransferase,serum glutamate oxaloacetate transaminase, serum glutamate oxaloacetate transaminase,serum glutamate pyruvate transaminase)\[SGOT\]/ALT\[SGPT\]\<4 times institutional upper limit of normal * Total WBC(white blood cell)\>4,000/mm3 or ANC(absolute neutrophil count)\> 1,500/mm3 * Platelets \> 100,000/mm3 * Hgb \>10g/dl * Patient must have no clinically significant cardiac disease (New York Heart Association Class III/IV); no serious infection requiring treatment with antibiotics; no other serious ill-ness or illness requiring the use of steroids; no clinically significant pulmonary disease or other illness that would contraindicate or increase the risk of complications at surgery. * Fasting blood sugar less than 120 mg/dl

Exclusion criteria

* Patients with active CNS (central nervous system)tumor involvement are ineligible. * Any patient who has retained childbearing potential will not be pregnant or lactating and must use adequate contraception to assure avoidance of conception. * Body size prohibits use of the diagnostic equipment (portable CT scanner). * Tumor burden is so great (as determined by preoperative PET scanning or intraoperative findings) that further surgery is not advised. * If lesions are detected with preoperative CT but not with PET scanning (in other words, all patients will have a positive PET scan as part of the inclusion criteria).

Design outcomes

Primary

MeasureTime frame
Detection of Position Accuracy With Handheld Probe on Anatomical Location.up to 12 months

Secondary

MeasureTime frame
All Adverse Events and Complicationsup to 12 months
Tumor DetectionAt surgery

Countries

United States

Participant flow

Participants by arm

ArmCount
Preoperative PET and CT Scans
Patients undergo preoperative whole-body PET scans and CT scans of the abdomen and pelvis. Patients then receive fluoro-deoxyglucose (FDG)IV 60-90 minutes prior to surgery and undergo intraoperative CT scans using a handheld probe and computer navigation system. PET Scan: All patients will receive whole body PET scans (chest-abdomen-pelvis). CT Scan: All patients will receive CT scans of the abdomen and pelvis with contrast. fludeoxyglucose F 18: Given IV computer-aided detection/diagnosis: Undergo computer-aided detection/diagnosis during surgery
21
Total21

Baseline characteristics

CharacteristicPreoperative PET and CT Scans
Age, Continuous54 years
Mean time interval from initial treatment to PET scan42 months
Mean time interval from PET scan to surgery/GP study16 days
Region of Enrollment
United States
21 participants
Sex: Female, Male
Female
12 Participants
Sex: Female, Male
Male
9 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
0 / 21
serious
Total, serious adverse events
0 / 21

Outcome results

Primary

Detection of Position Accuracy With Handheld Probe on Anatomical Location.

Time frame: up to 12 months

Population: number of tumor lesions detected by the probe

ArmMeasureGroupValue (NUMBER)
Preoperative PET and CT ScansDetection of Position Accuracy With Handheld Probe on Anatomical Location.true postive35 lesions
Preoperative PET and CT ScansDetection of Position Accuracy With Handheld Probe on Anatomical Location.false positive8 lesions
Preoperative PET and CT ScansDetection of Position Accuracy With Handheld Probe on Anatomical Location.not evaluable2 lesions
Secondary

All Adverse Events and Complications

Time frame: up to 12 months

ArmMeasureValue (NUMBER)
Preoperative PET and CT ScansAll Adverse Events and Complications0 patients
Secondary

Tumor Detection

Time frame: At surgery

ArmMeasureValue (NUMBER)
Preoperative PET and CT ScansTumor Detection48 lesions detected

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026