Track topics on Twitter Track topics that are important to you
PURPOSE: This phase II trial is studying how well curcumin works in preventing colon cancer in smokers with aberrant crypt foci.
- Determine mean percentage change in prostaglandin E_2 (PGE_2) within aberrant crypt foci (ACF) from baseline to 30 days after treatment with curcumin in current smokers.
- Determine the mean percentage change in 5-hydroxy-eicosatetraenoic acid (5-HETE) within ACF from baseline to 30 days after treatment with curcumin in these patients.
- Determine the mean percentage change in PGE_2 and 5-HETE within normal mucosa from baseline to 30 days after treatment with curcumin in these patients.
- Quantify corresponding enzyme changes in the cyclooxygenases (COX-1 and COX-2) and lipoxygenase (5-LOX) protein abundance in patients treated with curcumin.
- Document changes in total ACF number.
- Determine proliferation by Ki-67 immunohistochemistry (IHC) in rectal mucosa before and after treatment with curcumin and correlate changes in ACF number and size in these patients.
- Determine curcumin concentration in rectal mucosa after 30 days of treatment with curcumin and correlate with PGE_2 and 5-HETE changes described above in these patients.
- Measure glutathione peroxidase (GPx) activity within the colon before and after treatment with curcumin as an indirect marker of reduced oxidative stress within the colonic epithelium in these patients.
- Ensure the safety of all patients during course of study investigation.
OUTLINE: This is a multicenter, nonrandomized, uncontrolled study.
Patients receive 1 of 2 doses of oral curcumin once daily. Treatment continues for 30 days in the absence of unacceptable toxicity or disease progression.
Blood and tissue biopsies are obtained by sigmoidoscopy or colonoscopy at baseline and at day 30 for correlative biomarker studies. The change in prostaglandin E_2 (PGE_2) is assessed by enzyme immunoassay, 5-hydroxy-eicosatetraenoic acid (5-HETE) by high-performance liquid chromatography, cyclooxygenases (COX-1 and COX-2) and 5-lipoxygenase (5-LOX) by western blotting, Ki-67 by immunohistochemistry, and glutathione peroxidase (GPx) by spectrophotometric assay.
After completion of study therapy, patients are followed at 1 week.
PROJECTED ACCRUAL: A total of 48 patients will be accrued for this study.
Allocation: Non-Randomized, Control: Uncontrolled, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention
University of Illinois Cancer Center
Active, not recruiting
University of California, Irvine
Published on BioPortfolio: 2014-08-27T03:43:01-0400
RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming. The use of curcumin may prevent or treat colorectal cancer. PURPOSE: This phase I trial is studying the...
This clinical trial studies curcumin in treating patients with familial adenomatous polyposis. Curcumin may prevent colorectal cancer in patients with a history of rectal polyps or colorec...
The purpose of this study is to assess if curcumin, a commonly used food spice, can regress colorectal adenomatous polyps in patients with familial adenomatous polyposis, an inherited form...
Curcumin is a commonly-used spice and food coloring. Evidence suggests that curcumin can suppress tumor initiation, promotion and metastasis in a variety of tumor cell lines. The current a...
The study hypotheasis is that curcumin, a natural compound with a potent antiproliferative effect, can improve the efficacy of the standard chemotherapy gemcitabine in patients with advanc...
Telomerase is known as a global therapeutic target in cancer cells due to its main role in tumorigenesis. Nowadays, it is proposed new treatment methods based on molecular target therapy by bioactive ...
Curcumin is a component of turmeric and is isolated from the rhizomes of the plant Curcuma longa. Curcumin was reported to have therapeutic effects on prostate cancer. Yet the molecular mechanism of c...
Colorectal cancer is the third leading cause of cancer death among U.S. women. Women report being screened for colorectal cancer less often than men, and if colorectal cancer screening guidelines were...
Curcumin is known to possess various biological functions including anti-inflammatory, antioxidative, and anti-cancer activity. Natural killer (NK) cells are large lymphocytes that directly kill cance...
Colorectal cancer, the second leading cause of cancer death in the United States, is also among the most preventable cancers. However, Latino men are less likely than non-Latino men to engage in preve...
Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI.
Tumor suppressor genes located in the 5q21 region on the long arm of human chromosome 5. The mutation of these genes is associated with the formation of colorectal cancer (MCC stands for mutated in colorectal cancer).
Tumor suppressor genes located in the 18q21-qter region of human chromosome 18. The absence of these genes is associated with the formation of colorectal cancer (DCC stands for deleted in colorectal cancer). The products of these genes show significant homology to neural cell adhesion molecules and other related cell surface glycoproteins.
A group of autosomal-dominant inherited diseases in which COLON CANCER arises in discrete adenomas. Unlike FAMILIAL POLYPOSIS COLI with hundreds of polyps, hereditary nonpolyposis colorectal neoplasms occur much later, in the fourth and fifth decades. HNPCC has been associated with germline mutations in mismatch repair (MMR) genes. It has been subdivided into Lynch syndrome I or site-specific colonic cancer, and LYNCH SYNDROME II which includes extracolonic cancer.
A yellow-orange dye obtained from tumeric, the powdered root of CURCUMA longa. It is used in the preparation of curcuma paper and the detection of boron. Curcumin appears to possess a spectrum of pharmacological properties, due primarily to its inhibitory effects on metabolic enzymes.
Head and neck cancers
Cancer can occur in any of the tissues or organs in the head and neck. There are over 30 different places that cancer can develop in the head and neck area. Mouth cancers (oral cancers) - Mouth cancer can develop on the lip, the tongue, the floor...
Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for the organ or type of cell in which they start - for example, cancer that begins in the colon is called colon cancer; cancer th...
In a clinical trial or interventional study, participants receive specific interventions according to the research plan or protocol created by the investigators. These interventions may be medical products, such as drugs or devices; procedures; or change...