Molecular targeting of 15-LOX-1 for apoptosis induction in human colorectal tumors
The goal of this clinical research study is to learn how (Celebrex) celecoxib affects polyp cells of the colon and rectum.
Disease Group: Colorectal
Treatment Agent: Celecoxib
Treatment Location: Only at MD Anderson
Estimatated Length of Stay in Houston: none
Return Visit: one return visit at 6 months of Celecoxib treatment
Home Care: none
To determine whether celecoxib downregulates GATA-6 expression to upregulate 15-LOX-1 expression and induce apoptosis in human rectal tumors, we will measure GATA-6 and 15-LOX-1 expression, 13-S-HODE levels, and apoptosis rates in normal and colorectal polyp epithelial tissues before and after 6 months of celecoxib treatment of patients with familial adenomatous polyposis (FAP).
IRB Review and Approval Date: NOV 6,2002
Recruitment Status: Closed
Projected Accrual: N/A
1) Diagnosis of familial adenomatous polyposis (patients should have
colorectal remnant that can be biopsied. Patients who had total
colorectal surgical resection ae not eligible).
2) Adequate bone marrow function (ANC > 1500 ml, platelet count > 100,000/ml). Serum creatinine, total bilirubin, and ALT < 1.5 upper limit normal.
3) Over 16 years of age.
4) Patient is able to give an informed consent.
5) Women of childbearing potential (women are considered to be of childbearing potential unless they are at 2 or more years post-menopausal/or surgically sterile), must: a. Not be pregnant or lactating b. use adequate contraceptive measures (e.g. abstinence, IUD, birth control pills, Depo-Provera® or diaphragm or condom with spermicidal gel) starting with last menses and throughout the study duration. c. Have a negative serum pregnancy test within 14 days of starting celecoxib.
1) Inflammatory bowel disease.
2) Intake of anti-inflammatory medications (e.g. non-steroidal, aspirin, and sulfasalazine) that can not be discontinued starting 3 days prior to the enrollment.
3) Chemotherapy or radiation therapy in less than three month from the time of the enrollment.
4) Individual who are taking Coumadin that can not be discontinued starting 7 days prior to the enrollment.
5) Individuals who have received an investigational chemopreventive agent during the month prior to the biopsies.
6) History of bleeding diathesis.
7) History of sulfonamides (sulfa) allergies.
8) History of cardiovascular diseases that might include the following: myocardial infraction, angina, coronary angioplasty, congestive heart failure, stroke, or coronary bypass surgery.
9) Uncontrolled hypertension (>135/>85 mm Hg on three repeated measurements during the 6 weeks prior to enrollment on the study).
10) Diagnosis of Diabetes.
11) Smoking history during the 6 months prior to enrollment on the study.
12) Uncontrolled hypercholesteremia (low-density lipoprotein cholesterol (LDL-C) > 130). Hypercholesteremia needs to be controlled following the updated the National Cholesterol Education Program Adult Treatment Panel III Guidelines for at least 3 months prior to enrollment on the study. Hypercholesteremia treatment needs to be continued during the enrollment on the protocol.
13) Family history of premature coronary disease (i.e. onset <55 years of age).
14) Metabolic syndrome diagnosis in patients who are 30 years or older. (The diagnosis of metabolic syndrome is made when three or more of these risk factors are present): a. Waist circumference: Men >102 cm (>40 in); Women >88 cm (>35 in). b. Triglycerides =150 mg/dl (=1.69 mmol/L) c. High-density lipoprotein cholesterol (HDL-C): [Men <40 mg/dl (<1.03 mmol/L), Women <50 mg/dl (<1.29 mmol/L)] d. Blood pressure =130/=85 mm Hg e. Fasting glucose =110 mg/dl (=6.1 mmol/L).
15) History of deep venous thrombosis, pulmonary embolism, systemic lupus erythematous, family history of protein S or C deficiencies or prior heparin-induced thrombocytopenia.