Track topics on Twitter Track topics that are important to you
PURPOSE: Randomized phase III trial to compare the effectiveness of two diets, differing in fat, fiber, soy, fruit, vegetable, vitamin E, and green tea content, in affecting PSA level in patients with prostate cancer.
OBJECTIVES: I. Determine the effects of 2 dietary regimens on levels of prostate-specific antigen (PSA) in patients with prostate cancer. II. Determine the compliance of these patients with the dietary regimen. III. Evaluate the effects of the dietary regimen on quality of life in these patients. IV. Evaluate the effects of the dietary regimen on PSA anxiety in these patients. V. Evaluate the effects of the dietary regimen on obesity, high blood pressure, and serum cholesterol in these patients.
OUTLINE: This is a randomized study. Patients are stratified according to previous treatment (prostatectomy vs radiotherapy) and prostate-specific antigen (PSA) level (less than 5 mg/mL vs 5 or greater mg/mL). All patients complete quality of life, dietary, and other questionnaires before, during, and at the conclusion of the study. Patients are randomized to one of two dietary intervention regimens: Arm I (Intensive Nutritional Intervention): Patients are assigned to follow a low fat, high fiber diet that is also high in soy, fruits and vegetables, green tea, and vitamin E. Patients meet with a nutritionist for nutrition education and dietary counseling weekly for 8 weeks, then every 2 weeks for 2 months, and then monthly for 14 months. Sessions include dietary counseling, meal planning, and instruction in skills necessary to maintain dietary lifestyle changes. Patients record their dietary intake on a regular basis. Arm II (General Nutritional Instruction): Patients are assigned to follow dietary guidelines established by the National Cancer Institute. Patients meet with a nutritionist for dietary counseling and monitoring every 2 months for 18 months. Patients on both arms have PSA levels tested before the study, 1 and 3 months into the study, and then every 3 months thereafter for up to 18 months.
PROJECTED ACCRUAL: A total of 154 patients will be accrued for this study over 2 years.
Allocation: Randomized, Primary Purpose: Treatment
green tea, soy protein isolate, vitamin E
Memorial Sloan-Kettering Cancer Center
National Cancer Institute (NCI)
Published on BioPortfolio: 2014-08-27T03:58:45-0400
This study is about Prostate Health Cocktail, a combination supplement that contains vitamin D3, vitamin E, selenium, green tea extract, saw palmetto, lycopene, and soy derivatives. This p...
RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of fish oil and/or green tea may prevent prostate cancer. PURPOSE: Thi...
The purpose of this study is to determine whether antioxidants (vitamin E, selenium and lycopene)can change(reduce)prostate tumor size or blood flow to the prostate as determined by MRI im...
RATIONALE: Soy protein supplement may prevent or delay the development of prostate cancer in patients who have elevated prostate-specific antigen (PSA) levels. PURPOSE: Randomized phase I...
RATIONALE: Vitamin E supplements may stop or delay the development of prostate cancer in patients who are at risk of prostate cancer or who have prostate cancer. It is not yet known which ...
Vitamin D supplementation has a beneficial effect on cancerous patients, although it can influence the redox- and metal homeostasis. The aim of our investigation was to demonstrate the effect of vitam...
In Switzerland, prostate cancer mortality is higher in the German than in the Italian-speaking region. We aimed at exploring the association of living in one of the two regions with lifestyle factors ...
The isoflavone phytoestrogens found in the soy protein isolate used in soy infant formulas have been shown to have estrogenic actions in the developing male reproductive tract resulting in reproductiv...
Prostate-specific antigen (PSA) is a serine protease produced by epithelial prostatic cells and its main function is to liquefy seminal coagulum. Currently, PSA is a biomarker for the diagnosis and sc...
Prostate cancer is the most commonly diagnosed non-skin cancer in men. Screening for prostate cancer is widely accepted; however concerns regarding the harms outweighing the benefits of screening exis...
A lipid cofactor that is required for normal blood clotting. Several forms of vitamin K have been identified: VITAMIN K 1 (phytomenadione) derived from plants, VITAMIN K 2 (menaquinone) from bacteria, and synthetic naphthoquinone provitamins, VITAMIN K 3 (menadione). Vitamin K 3 provitamins, after being alkylated in vivo, exhibit the antifibrinolytic activity of vitamin K. Green leafy vegetables, liver, cheese, butter, and egg yolk are good sources of vitamin K.
A glycoprotein that is a kallikrein-like serine proteinase and an esterase, produced by epithelial cells of both normal and malignant prostate tissue. It is an important marker for the diagnosis of prostate cancer.
A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activity.
Proteins secreted by the prostate gland. The major secretory proteins from the human prostate gland include PROSTATE-SPECIFIC ANTIGEN, prostate-specific acid phosphatase, prostate-specific membrane antigen, and prostate-specific protein-94.
A vitamin found in green vegetables. It is used in the treatment of peptic ulcers, colitis, and gastritis and has an effect on secretory, acid-forming, and enzymatic functions of the intestinal tract.
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...
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...