- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT01315483
Diet Composition, Weight Control, and Breast Carcinogenesis (CHOICE)
In the United States, overweight (BMI > 25 but < 30 Kg/m2) and obesity (BMI > 30Kg/m2) are increasing at epidemic rates. A significant association exists between being overweight or obese and breast cancer recurrence and survival. However, evidence continues to accumulate indicating that achieving or maintaining a healthy weight for height (Body Mass Index, BMI, 18.5-25Kg/m2) is associated with a reduced risk for breast cancer and with a decrease in breast cancer associated mortality. Despite this, there is a lack of randomized controlled trials exploring this association and how the process of fat loss or being successful in actually reaching a healthy weight for height differentially affects biomarkers for cancer recurrence.
Many dietary approaches for weight loss are currently available to the public, and each purports to offer advantages. However, there is little scientific evidence to indicate how these dietary approaches, some of which vary markedly in the foods that they limit or exclude, affect biomarkers for breast cancer risk. In particular, it is not know whether the critical factor in relation to weight and breast cancer is simply weight loss (negative energy balance), irrespective of the manner in which it is achieved, or if certain dietary approaches affect breast cancer risk biomarkers more favorably than others. Published data from our laboratory suggest that dietary pattern does matter, and therefore the goal of this study is to investigate the effects of two popular weight loss dietary approaches that differ in the extent to which they limit carbohydrate or fat consumption (with effects on dietary glycemic load) compared to a usual care group on prognostic markers for cancer recurrence in postmenopausal breast cancer survivors. The investigators hypothesize that in addition to the anticipated effects of fat loss on circulating levels of bioavailable sex steroid hormones, that the effects of excess fat on breast cancer prognosis can be attributed to three interrelated metabolic processes that affect cancer progression: altered glucose metabolism, chronic inflammation and excessive cellular oxidation.
연구 개요
상세 설명
This study is designed to answer questions about how a dietary pattern either high or low in dietary carbohydrate and fat availability and fat loss influence metabolic and hormonal processes that may affect breast cancer recurrence. The investigators hypothesize that in addition to the anticipated effects of fat loss on circulating levels of bioavailable sex steroids, that the effects of excess fat on breast cancer prognosis can be attributed to three interrelated metabolic processes: altered glucose metabolism (IGF-1, IGFBP-3, glycated proteins), chronic inflammation (C-reactive protein, IL-6, TNF-alpha) and excessive cellular oxidation (8-hydroxy-2-deoxyguanosine and 8-isoprostane F-2 alpha).
A 6 month intervention study involving 370 post menopausal women who have been treated for breast cancer is proposed. Randomized women, stratified by resected stage, systemic adjuvant therapy and body mass index (> 25 and < 35 Kg/m2), will serve as either a non-intervention control group or will follow a tailored diet-physical activity program designed to create a weekly negative energy balance equivalent to 3500 kcal. The intervention groups will receive the same physical activity protocol, but one of two diets that differ in dietary pattern.
The specific aims are: Aim 1. Does a dietary pattern either high or low in available carbohydrate and fat alter the pattern of change observed in circulating factors involved in glucose homeostasis, chronic inflammation, cellular oxidation, and steroid hormone metabolism during progressive loss of body fat? The investigators will also examine how observed changes in these circulating factors related to changes indicators of breast cancer recurrence. Aim 2. Do circulating factors associated with glucose homeostasis, chronic inflammation, and cellular oxidation display the same pattern of change in response to progressive fat loss as circulating analytes associated with sex steroid metabolism? Analytes of interest will be measured monthly throughout the study. Aim 3. Does dietary glycemic load affect the magnitude or rate of fat loss? Plasma adipokines such as leptin and adiponectin and plasma ghrelin will be measured to provide biological determinants that may help explain differences in response.
The work proposed in this application should provide quantitative data about the importance of the magnitude of fat loss on metabolic and hormonal processes involved in cancer recurrence and provide guidance about effective dietary approaches that maximize weight loss benefits on breast cancer prognosis.
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
-
-
Colorado
-
Denver, Colorado, 미국, 80220
- Rocky Mountain Cancer Center
-
-
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
Inclusion Criteria:
- Female breast cancer survivors
- Staged, resected breast cancer (> 4-months post radiation treatment, chemotherapy or surgery)
- Post-menopausal (no menses for > 6 months)
- No evidence of metastatic breast disease
- Willing to follow the diet plan prescribed
- Willing to follow the guidelines for alcohol consumption (no more than 1 standard alcoholic drink per day where one serving is defined as 12oz beer, 5 oz wine OR 1 oz hard liquor)
- Willing to maintain or increase current physical activity level
- Willing to wear a pedometer and keep a daily record of steps
- Willing to wear heart rate/ accelerometer device (Actiheart) continuously (24/7) for one week at the start and end of the study
- Willing to wear a body or swim suit and cap for body composition tests
- Willing to record food intake daily
- Willing to come to RMCC Rose for 11 individual and 5 group sessions over a 6 month period
- Willing to provide urine and fasting blood samples at 7 visits during the study
- Willing to make the commitment it takes to lose weight for the study
- Must have a Body Mass Index between 25Kg/m2 to 35Kg/m2.
Exclusion Criteria:
- Anticipates having surgery during the next 6 months
- Follows a special diet, e.g. gluten free, casein free, dairy free, vegetarian or other
- Lost 4 or more pounds during the previous month
- Taking weight loss medications during the study
- Being treated by a physician for diabetes
- Has an eating disorder
- Has digestive problems such as IBS (Irritable Bowel Syndrome), Crohn's or other
- Has had surgery involving constriction or removal of any portion of the gastrointestinal tract (gastric bypass, lap-band, bowel resection, colostomy etc.
- Diagnosed with hepatitis B, hepatitis C or HIV
- Has electronic devices implanted in their body (pacemaker, vagus nerve stimulator)
- Must not use any tobacco products
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 방지
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 하나의
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
---|---|
간섭 없음: 제어
평소 케어
|
|
실험적: Low fat, high carb weight loss diet
Ornish-like weight loss dietary pattern
|
Diet-physical activity program creating a weekly negative energy balance equivalent to 3500 kcal.
Intervention groups receive PA protocol promoting the Physical Activity Guidelines and translated in step recommendations, but one of two diets with divergent dietary patterns (opposing fat and CHO content) that do not overlap >+5% in CHO and fat content.
Macronutrient values reflect a 'pattern' or ratio within (LC 3:2 ratio for F:CHO; HC 1:4 ratio for F:CHO ) and between diets (LC:HC 3:1 for fat; LC:HC 1:2 for CHO).
Six-week meal plans for five calorie levels available and incorporate educational material, supporting program components (e.g.
self monitoring tools) and core competencies reinforcing weight loss behaviors in order to promote high levels of dietary adherence.
다른 이름들:
|
실험적: Low carb, high fat weight loss diet
South-Beach-like weight loss diet pattern
|
Diet-physical activity program creating a weekly negative energy balance equivalent to 3500 kcal.
Intervention groups receive PA protocol promoting the Physical Activity Guidelines and translated in step recommendations, but one of two diets with divergent dietary patterns (opposing fat and CHO content) that do not overlap >+5% in CHO and fat content.
Macronutrient values reflect a 'pattern' or ratio within (LC 3:2 ratio for F:CHO; HC 1:4 ratio for F:CHO ) and between diets (LC:HC 3:1 for fat; LC:HC 1:2 for CHO).
Six-week meal plans for five calorie levels available and incorporate educational material, supporting program components (e.g.
self monitoring tools) and core competencies reinforcing weight loss behaviors in order to promote high levels of dietary adherence.
다른 이름들:
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
---|---|---|
Inflammation Markers
기간: Baseline and montlhly for 6 months
|
C-reactive protein, IL-6, TNF-alpha
|
Baseline and montlhly for 6 months
|
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
---|---|---|
Body Fat Percentage (%)
기간: Baseline and monthly for 6 months
|
% Body fat, % lean muscle mass, Resting Metabolic Rate (RMR) using the BODPOD (Volumetric weighing; Life Measurement, Inc.) and Tanita Bioelectrical Impedence (BI)
|
Baseline and monthly for 6 months
|
Waist Hip Ratio
기간: Baseline and monthly for 6 months
|
Calculated by measuring and dividing waist and hip circumferences
|
Baseline and monthly for 6 months
|
Weight
기간: Baseline and monthly for 6 months
|
Using 1) BODPOD (Life Measurement, Inc.) and 2) Tanita Bioelectrical Impedence Scale
|
Baseline and monthly for 6 months
|
Bioavailable sex steroid hormones
기간: Baseline and monthly for 6 months
|
estradiol, estrone, sex hormone binding globulin (SHBG)
|
Baseline and monthly for 6 months
|
Glucose metabolism
기간: Baseline and monthly for 6 months
|
glucose, insulin, IGF-1, IGFBP-3, glycated proteins (HbA1c)
|
Baseline and monthly for 6 months
|
Cellular oxidation
기간: Baseline and monthly for 6 months
|
8-hydroxy-2-deoxyguanosine, DNA damage sensitivity and repair and 8-isoprostane-F-2-alpha
|
Baseline and monthly for 6 months
|
공동 작업자 및 조사자
수사관
- 수석 연구원: Henry J Thompson, PhD, Colorado State University
- 수석 연구원: Scot M Sedlacek, MD, Rocky Mountain Cancer Center
간행물 및 유용한 링크
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .
유방암에 대한 임상 시험
-
Georgetown UniversityNational Cancer Institute (NCI); American Cancer Society, Inc.; Susan G. Komen Breast Cancer...완전한
-
University of UtahNational Cancer Institute (NCI)모병피로 | 좌식 생활 | 전이성 전립선암 | IV기 전립선암 AJCC(American Joint Committee on Cancer) v8 | IVA기 전립선암 AJCC(American Joint Committee on Cancer) v8 | IVB기 전립선암 AJCC(American Joint Committee on Cancer) v8미국
-
Jonsson Comprehensive Cancer Center아직 모집하지 않음전립선암 | IVB기 전립선암 American Joint Committee on Cancer(AJCC) v8미국
-
Rashmi Verma, MDNational Cancer Institute (NCI)모병거세저항성 전립선암 | 전이성 전립선 선암종 | IVB기 전립선암 American Joint Committee on Cancer(AJCC) v8미국
-
Jonsson Comprehensive Cancer Center빼는전립선 선암종 | 2기 전립선암 AJCC v8 | IIC기 전립선암 AJCC v8 | IIA기 전립선암 AJCC v8 | IIB기 전립선암 AJCC v8 | 1기 전립선암 American Joint Committee on Cancer(AJCC) v8미국
-
Jonsson Comprehensive Cancer CenterMiraDX모집하지 않고 적극적으로전립선 선암종 | 2기 전립선암 AJCC v8 | IIC기 전립선암 AJCC v8 | IIA기 전립선암 AJCC v8 | IIB기 전립선암 AJCC v8 | 1기 전립선암 American Joint Committee on Cancer(AJCC) v8미국
-
Jonsson Comprehensive Cancer Center종료됨거세저항성 전립선암 | 전이성 전립선암 | IVA기 전립선암 AJCC v8 | IVB기 전립선암 AJCC v8 | IV기 전립선암 American Joint Committee on Cancer(AJCC) v8미국
-
Jonsson Comprehensive Cancer CenterProgenics Pharmaceuticals, Inc.종료됨2기 전립선암 AJCC v8 | IIIA기 전립선암 AJCC v8 | IIIB기 전립선암 AJCC v8 | IIC기 전립선암 AJCC v8 | 3기 전립선암 AJCC v8 | IIIC기 전립선암 AJCC v8 | IIA기 전립선암 AJCC v8 | IIB기 전립선암 AJCC v8 | 1기 전립선암 American Joint Committee on Cancer(AJCC) v8미국
-
Assiut University아직 모집하지 않음South Egypt Cancer Institute(SECI)에서 소아 악성종양 환자에 대한 KDIGO 기준을 사용하여 AKI의 누적 발병률을 확인하기 위해