Permission to Collect Blood Over Time for Research
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government.
Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT00767234
(Accrual issues - Low Accrual)
To determine whether biomarkers assessed in blood samples can be used to detect individuals at risk for developing blood clots or worsening of their underlying disease. The ultimate goal of the study is to identify key biomarkers derived from blood that are most characteristic and informative of individuals who will go on to develop a clotting complication.
Condition or disease
Pancreatic CancerGastrointestinal NeoplasmsColon Rectal Cancer AdenocarcinomaEsophageal CancerGall Bladder CancerGastric (Stomach) CancerGastrooesophageal CancerGastrointestinal Stromal Tumor (GIST)Hepatobiliary NeoplasmLiver CarcinomaGallbladder CarcinomaBile Duct CarcinomaCarcinoma of the Large IntestineAnal Cancer
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study:
18 Years and older (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
Active cancers of the GI tract
Male or female, >= 18 years old. There are no ethnic restrictions.
Active cancers of the GI tract (gastroesophageal, colorectal, or pancreatic-biliary) that have completed TNM staging by the American Joint Committee on Cancer; stage III disease if diagnosed within 2 months and all stage IV disease
Ability to understand and the willingness to sign a written informed consent document.
Existing staging CT imaging study
Life expectancy < 6 months
History of deep vein thrombosis (DVT) or pulmonary embolism (PE)
Known pregnancy or positive urine pregnancy test in pre-menopausal women
On anticoagulant therapy (heparin, warfarin, direct thrombin inhibitors)
No CT imaging studies, or contraindications to undergoing CT imaging
Existing or anticipated need for a tunneled central venous catheter
Clinic visitation to Stanford Cancer center for secondary consultation purposes only
Neoplasms by Histologic Type
Neoplasms by Site
Endocrine Gland Neoplasms
Digestive System Diseases
Endocrine System Diseases
Urinary Bladder Diseases
Head and Neck Neoplasms
Neoplasms, Connective Tissue
Neoplasms, Connective and Soft Tissue