- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00520533
Study of Safety and Functional Imaging of cG250 and Sunitinib in Patients With Advanced Renal Cell Carcinoma
A Pilot Study of the Safety, Efficacy, and Effects on Functional Imaging of the Combination of cG250 and Sunitinib in Patients With Advanced Renal Cell Carcinoma
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This study explores the safety, efficacy and effects on functional imaging of the combination of cG250 and sunitinib in patients with advanced renal cell carcinoma (kidney cancer).
When kidney cancer has spread beyond the kidney, it is usually not possible to cure it with surgery. Other treatments such as radiotherapy or chemotherapy are also of limited value. Kidney cancers often rely on certain proteins for their growth, particularly proteins that affect the ways that blood vessels grow into the cancer. Ingrowth of blood vessels supplies cancer cells with oxygen and nutrition; without the blood vessels, cancer deposits can not grow in size. When growth of the blood vessels is blocked, established cancers may stop growing or may shrink. This has been shown to work for some drugs that target this process in kidney cancers. One of these drugs is called sunitinib.
A protein, called G250, is also thought to be important in helping kidney cancers to grow. G250 is found on the cell surface of many kidney cancers. One possible method of interfering with the function of G250 is to target G250 with an antibody known as cG250. Clinical trials with cG250 have shown it to be safe, to home in on kidney cancer cells, and to persist in the blood and the cancer tissue for a long period of time.
The main purpose of this study is to explore whether the combination of sunitinib and cG250 is safe in patients with advanced kidney cancer. The study will also assess whether this combination is able to cause kidney cancer to shrink; will determine where cG250 travels within the body, whether the immune system reacts to the cG250 and whether sunitinib affects that; and whether the combination affects how kidney cancers grow or how blood flows within the tumour.
Eligible patients will receive cG250 10 mg/m² by weekly intravenous infusion for five weeks, followed by a two-week break (one cycle). The first and fifth dose will be trace-labeled with a radioactive substance (124I-cG250) detectable by a special scan called a Positron Emission Tomography (PET scan) to allow studies of the distribution of cG250. Sunitinib 50 mg by daily oral dose will also be given for 4 weeks (commencing on day 8 of the first treatment cycle), followed by a two-week break. Up to two cycles of treatment will be given. If a second cycle is given, cG250 will be given as four weekly doses and daily sunitinib will start on the same day. No 124I-cG250 will be administered after the first treatment cycle.
The extent of the kidney cancer will be assessed by Computed tomography (CT) at baseline and at the end of each treatment cycle. Safety assessments (physical examination, blood tests, gated cardiac blood pool scan, ECG-heart trace) will be performed at the beginning of each treatment cycle, repeated throughout the cycle and end of study. A number of blood tests and PET scans will be done in the first cycle to show how and in what amounts the 124I-cG250 distributes in the body. Other PET scans (18F-2-fluoro-2-deoxy-D-glucose fluorodeoxyglucose {[18]F-FDG}) and 15O-water {[15]O-H2O}) will be performed to allow assessment of tumour growth and blood flow. Blood tests will also show whether the immune system recognises the infused cG250 by making an antibody against it.
A total of 14 patients were expected to be recruited; 8 were consented and 6 received study treatment.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
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Victoria
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Heidelberg, Victoria, Australia, 3084
- Austin Health (Ludwig Institute Oncology Unit)
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Metastatic or unresectable Renal Cell Cancer (with clear cell component).
- Measurable disease by RECIST on CT with at least one measurable lesion 2 cm or greater in diameter, which is deemed to be assessable by PET imaging.
- At least 4 weeks after chemotherapy, radiotherapy or immunotherapy (6 weeks for nitrosourea drugs).
- Expected survival at least 3 months.
- Karnofsky performance status (KPS) of 70% or greater.
- Age 18 years or older.
- Vital laboratory parameters within normal, or protocol specified ranges.
- Left ventricular ejection fraction greater than 55% on GCBP scan.
- Systolic blood pressure ≤150mmHg and diastolic blood pressure ≤90mmHg.
- Able to give written informed consent.
Exclusion Criteria:
- Prior exposure to cG250 monoclonal antibody (exception: no circulating human anti-chimeric antibody to cG250).
- Prior treatment with vascular endothelial growth factor (VEGF)-targeting agents (e.g. bevacizumab) or multi-kinase inhibitors (e.g. sorafenib) not including sunitinib. (Patients currently receiving sunitinib may be eligible if tolerating a stable dose of sunitinib on a four week on / two week off regimen, with toxicity due to sunitinib ≤ CTCAE grade 2; and for whom the investigator deems it clinically reasonable to withhold sunitinib for at least four weeks prior to commencement of study treatment.)
- Active central nervous system (CNS) metastases (exception: CNS metastases adequately treated (surgery or radiotherapy) with no progression for at least three months).
- Known HIV positivity.
- Clinically significant heart disease.
- History of hypertension requiring hospitalisation.
- Other serious illnesses, eg, serious infections requiring antibiotics, bleeding disorders.
- Major surgery or radiation therapy within 4 weeks prior to, or planned within 6 weeks of starting the study treatment. (Prior palliative radiotherapy to metastatic lesion(s) permitted, provided at least one measurable lesion was not irradiated or has progressed following radiotherapy.)
- Severe haemorrhage within 4 weeks prior to starting the study treatment.
- Any of the following within the 12 months prior to study drug administration: myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass graft, symptomatic congestive heart failure, cerebrovascular accident or transient ischemic attack, or pulmonary embolism.
- Pre-existing thyroid abnormality with unstable thyroid function despite medication.
- Ongoing moderate to severe cardiac dysrhythmias, any severity of atrial fibrillation, or prolongation of the corrected QT interval (QTc) to greater than 450 millisecond for males or 470 millisecond for females.
- Participation in a clinical trial involving another investigational agent within 4 weeks.
- Pregnancy or breastfeeding.
- Women of childbearing potential not using a medically acceptable means of contraception.
- Psychiatric or addictive disorders that may compromise the ability to give informed consent.
- Not available for follow-up assessment.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: On Study
Treatment (cycle 1):
Treatment (cycle 2 - investigator discretion):
|
First Cycle: cG250 10 mg/m² intravenous infusion, weekly for five weeks, followed by a two-week break. 1st & 5th dose will be trace-labeled with a radioactive substance detectable on a PET scanner (124I-cG250). Second cycle (investigator discretion): cG250 10 mg/m² intravenous infusion, weekly for four weeks followed by a two-week break. No 124I-cG250 will be used in the 2nd cycle. Up to 2 cycles available. First Cycle: Sunitinib 50 mg orally daily for 4 weeks (starts 8th day of 1st treatment cycle), followed by a two-week period off sunitinib. Second cycle (investigator discretion): Sunitinib 50 mg orally daily for 4 weeks (starts on 1st day of 2nd treatment cycle), followed by a two-week period off sunitinib. Up to 2 cycles available on-study.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Patients With Adverse Events (AEs), Serious Adverse Events (SAEs), Dose Limiting Toxicities (DLTs) or Adverse Events Leading to Discontinuation.
Time Frame: up to 14 weeks
|
Toxicity was graded in accordance with the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE), version 3.0. Adverse events (AEs) were reported based on clinical laboratory tests, vital sign, weight measurements, physical examinations, and performance status evaluations. Pre-existing symptoms were collected from the signing of informed consent until the first dose of study drug. Adverse events were collected from the first dose of study drug through the end of study assessment. Dose Limiting Toxicity (DLT): any of the following events occurring within 30 days of study drug administration related to cG250 or sunitinib. Grade 2 or greater allergic reaction. Grade 3 toxicity. Exceptions are: fever; asymptomatic hyperglycemia; hypophosphatemia; nausea, vomiting, or diarrhoea that resolve with medical therapy; leukopenia or thrombocytopenia that revert to baseline within three weeks of occurrence, or lymphopenia only. Any Grade 4 toxicity. |
up to 14 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Patients With Tumour Response Assessed by Response Evaluation Criteria in Solid Tumors (RECIST).
Time Frame: up to 14 weeks
|
Tumor responses were evaluated using appropriate imaging and categorized according to RECIST at Screening (within 4 weeks of the first dose of study treatment), and after cycles 1 and 2 of study treatment.
Per RECIST, target lesions are categorized as follows: complete response (CR): disappearance of all target lesions; partial response (PR): ≥ 30% decrease in the sum of the longest diameter of target lesions; progressive disease (PD): ≥ 20% increase in the sum of the longest diameter of target lesions; stable disease (SD): small changes that do not meet above criteria (Therasse et al 2000).
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up to 14 weeks
|
Number of Patients With Tumor Metabolic Response as Assessed by Serial 18F-FDG-PET Scans.
Time Frame: 7 weeks
|
18F-FDG-PET was performed at pre-study, between days 15-22 and at the end of cycle 1. At baseline, visual grading of the intensity of FDG uptake was scored. On follow-up PET scans, the greatest baseline maximum standard uptake value (SUVmax) of the reference lesion with the greatest baseline value and presence/absence of new sites of disease were recorded. Tumour metabolic response was calculated using the SUVmax and was categorized according to the EORTC guidelines (Young et al 1999). Complete metabolic remission (CMR) is the disappearance of tracer uptake in the target lesion and no new lesions; Partial metabolic remission (PMR) is a 20% or more decrease in the tracer uptake in the target lesion and no new lesions; Tumor progression was defined as a greater than 20% increase in FDG uptake or the appearance of new tumour lesions. Stable metabolic disease (SMD) was classified as no significant change in uptake. |
7 weeks
|
Whole Body Clearance as Measured by Mean Biological Half-life (T1/2) After the First and Fifth Infusions of 124I-cG250.
Time Frame: 7 weeks
|
Biological half-life is the clearance of the 124I from the whole body. Positron emission tomography (PET) imaging was performed at 1 - 4 hours post infusion, and at two other time points over the ensuing one-week period. Quantitative uptakes of 124I-cG250 were assessed in one selected reference tumour lesion identified by 18F-2-fluoro-2-deoxy-D-glucose fluorodeoxyglucose (18F-FDG) PET imaging. Tumour volume of Interest (VOI) was delineated around the whole tumour mass on the consecutive transverse slices of FDG-PET/CT images at which the tumours were most clearly identified. Whole body clearance of 124I-cG250 was calculated from the whole body PET volumetric images, obtained at the multiple imaging time points after infusion. VOIs were delineated to encompass the whole body regions in the images, and for the whole-body VOI at each time point, the total counts per minute was normalized to the first imaging time point on Day 1. |
7 weeks
|
Whole Body Clearance as Measured by Mean Effective Half-life (T1/2) After the First and Fifth Infusions of 124I-cG250.
Time Frame: 7 weeks
|
Effective half-life is the time it takes the radiolabel to be reduced by 50%. This takes into account the biological elimination and the radioactive decay of the 124I. PET imaging studies were performed at 1 - 4 hours post infusion, and at two other time points over the ensuing one-week period. Quantitative uptakes of 124I-cG250 were assessed in one selected reference tumour lesion identified by 18F-FDG-PET imaging. Tumour volume of Interest (VOI) was delineated around the whole tumour mass on the consecutive transverse slices of FDG-PET/CT images at which the tumours were most clearly identified. Whole body clearance of 124I-cG250 was calculated from the whole body PET volumetric images, obtained at the multiple imaging time points after infusion. VOIs were delineated to encompass the whole body regions in the images, and for the whole-body VOI at each time point, the total counts per minute was normalized to the first imaging time point on Day 1. |
7 weeks
|
Number of Patients With 124I-cG250 Tumor Uptake After the First and Fifth Infusions of 124I-cG250.
Time Frame: 7 weeks
|
PET imaging studies were performed at 1 - 4 hours post infusion, and at two other time points over the ensuing one-week period. Quantitative uptakes of 124I-cG250 were assessed in one selected reference tumour lesion identified by 18F-FDG-PET imaging. Tumour volume of Interest (VOI) was delineated around the whole tumour mass on the consecutive transverse slices of FDG-PET/CT images at which the tumours were most clearly identified. Uptakes of 124I-cG250 were assessed in one selected reference tumour lesion identified by 18F-FDG-PET imaging. |
7 weeks
|
Serum Pharmacokinetics as Measured by Mean Initial Half-life (T½ α) and Mean Terminal Half-life (T½ β) After the First and Fifth Infusions of 124I-cG250 as Measured by Blood 124I Radioactivity and After the First Dose as Measured by ELISA.
Time Frame: 7 weeks
|
Blood samples were taken prior to 124I-cG250 infusion and 5 minutes, 1, 2, 4 and 24 hours post 124I-cG250 infusion.
The pharmacokinetics of 124I-cG250 were calculated using gamma scintillation counting and by enzyme-linked immunosorbent assay (ELISA).
|
7 weeks
|
Serum Pharmacokinetics as Measured by Mean Volume of Central Compartment (V1) After the First and Fifth Infusions of 124I-cG250 as Measured by Blood 124I Radioactivity and After the First Dose as Measured by ELISA.
Time Frame: 7 weeks
|
Blood samples were taken prior to 124I-cG250 infusion and 5 minutes, 1, 2, 4 and 24 hours post 124I-cG250 infusion.
The pharmacokinetics of 124I-cG250 were calculated using gamma scintillation counting and by enzyme-linked immunosorbent assay (ELISA).
|
7 weeks
|
Serum Pharmacokinetics as Measured by Mean Area Under the Concentration Curve Extrapolated to Infinite Time (AUC) After the First and Fifth Infusions of 124I-cG250 as Measured by Blood 124I Radioactivity and After the First Dose as Measured by ELISA.
Time Frame: 7 weeks
|
Blood samples were taken prior to 124I-cG250 infusion and 5 minutes, 1, 2, 4 and 24 hours post 124I-cG250 infusion.
The pharmacokinetics of 124I-cG250 were calculated using gamma scintillation counting and by enzyme-linked immunosorbent assay (ELISA).
|
7 weeks
|
Serum Pharmacokinetics as Measured by Mean Total Serum Clearance (CL) After the First and Fifth Infusions of 124I-cG250 as Measured by Blood 124I Radioactivity and After the First Dose as Measured by ELISA.
Time Frame: 7 weeks
|
Blood samples were taken prior to 124I-cG250 infusion and 5 minutes, 1, 2, 4 and 24 hours post 124I-cG250 infusion.
The pharmacokinetics of 124I-cG250 were calculated using gamma scintillation counting and by enzyme-linked immunosorbent assay (ELISA).
|
7 weeks
|
Serum Pharmacokinetics as Measured by Mean Maximum Serum Concentration (Cmax) After the First and Fifth Infusions of 124I-cG250 as Measured by Blood 124I Radioactivity and After the First Dose as Measured by ELISA.
Time Frame: 7 weeks
|
Blood samples were taken prior to 124I-cG250 infusion and 5 minutes, 1, 2, 4 and 24 hours post 124I-cG250 infusion.
The pharmacokinetics of 124I-cG250 were calculated using gamma scintillation counting and by enzyme-linked immunosorbent assay (ELISA).
|
7 weeks
|
Number of Patients With Decreases in Tumour Blood Flow on Week 3 Versus Baseline.
Time Frame: 7 weeks
|
15O-H2O PET scans were performed up to 14 days prior to treatment and between days 15-22 in the first treatment cycle only.
Approximately 750 megabecquerel (MBq) of 15O-H2O were administered intravenously and data was acquired dynamically over 5-10 minutes.
The PET scan field of view was of an anatomical region containing a least one reference tumour lesion.
Quantitation of blood flow within tumour was performed, and expressed in mL/mg/min.
Follow-up 15O-H2O PET scan quantitated blood flow within the same reference lesion(s), allowing direct comparison of any change in quantitative tumour blood flow in response to treatment to be measured.
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7 weeks
|
Number of Patients With Human Anti-chimeric Antibodies (HACA)
Time Frame: 7 - 14 weeks
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Blood samples (5 mL/sample) were drawn prior to each cG250 or 124I-cG250 infusion during cycle 1 and also at the End of Study visit. If a second cycle of treatment was administered, HACA was performed at the End of Study visit. The immunochemical measurement of anti-cG250 antibodies in human serum was performed by an enzyme-linked immunosorbent assay (ELISA). Samples with values greater than the limit of quantitation (16 ng/mL) were considered HACA positive. Samples at or below that level were reported as negative. |
7 - 14 weeks
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Collaborators and Investigators
Investigators
- Principal Investigator: A/Prof Ian D Davis, FRACP, FAChPM, MBBS, PhD, Ludwig Institute for Cancer Research
Publications and helpful links
General Publications
- Therasse P, Arbuck SG, Eisenhauer EA, Wanders J, Kaplan RS, Rubinstein L, Verweij J, Van Glabbeke M, van Oosterom AT, Christian MC, Gwyther SG. New guidelines to evaluate the response to treatment in solid tumors. European Organization for Research and Treatment of Cancer, National Cancer Institute of the United States, National Cancer Institute of Canada. J Natl Cancer Inst. 2000 Feb 2;92(3):205-16. doi: 10.1093/jnci/92.3.205.
- Young H, Baum R, Cremerius U, Herholz K, Hoekstra O, Lammertsma AA, Pruim J, Price P. Measurement of clinical and subclinical tumour response using [18F]-fluorodeoxyglucose and positron emission tomography: review and 1999 EORTC recommendations. European Organization for Research and Treatment of Cancer (EORTC) PET Study Group. Eur J Cancer. 1999 Dec;35(13):1773-82. doi: 10.1016/s0959-8049(99)00229-4.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Neoplasms by Histologic Type
- Neoplasms
- Urologic Neoplasms
- Urogenital Neoplasms
- Neoplasms by Site
- Kidney Diseases
- Urologic Diseases
- Adenocarcinoma
- Neoplasms, Glandular and Epithelial
- Kidney Neoplasms
- Carcinoma, Renal Cell
- Carcinoma
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Antineoplastic Agents
- Immunologic Factors
- Angiogenesis Inhibitors
- Angiogenesis Modulating Agents
- Growth Substances
- Growth Inhibitors
- Protein Kinase Inhibitors
- Antibodies
- Sunitinib
- Antibodies, Monoclonal
Other Study ID Numbers
- LUD2007-004
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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