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POWER-remote Weight Loss Program in Early Stage Breast Cancer

A Randomized Study Evaluating the Effect of a Remote-Based Weight Loss Program (POWER-remote) on Biomarkers in Women With Early Stage Breast Cancer

This research is being done to assess the effectiveness of a weight loss program in women with early stage breast cancer whose body mass index (BMI) is in the overweight or obese range (>25). Weight loss is beneficial in improving cardiovascular risk factors and overall health, but may also decrease the chance of breast cancer coming back. A weight loss counseling program was studied in a general population and was found to be effective to help reduce weight over a 2 year period.

The main goal of this study is to determine if women with a recent diagnosis of early breast cancer will also lose weight with this program. To better understand the effect that weight loss has on women with breast cancer, we will compare the patterns in blood and breast tissue samples (tissue biopsies will be optional), and questionnaires evaluating different aspects of one's well-being, before and after a dietary intervention or no intervention.

연구 개요

상세 설명

The prevalence of obesity has increased rapidly in recent years. Epidemiological studies since the 1970's have strongly suggested that excess body weight gain may be a major risk factor for many cancers including breast cancer. In addition, once diagnosed with breast cancer, women who are overweight or obese experience worse outcomes despite standard local and adjuvant therapy. Furthermore, most women gain weight following a diagnosis of breast cancer, and this weight gain may increase risk of recurrence by 40-50% and breast cancer-related mortality by 53-60%.

A great deal of effort has been made for many years to explain the relationship between obesity and breast cancer. Molecularly, the relationship involves dynamic and complex interactions between a milieu of hormones, cytokines, adipokines, affecting cell signaling and potentially epigenetic pathways. Recently, studies in postmenopausal women have shown that weight loss modulates these cytokines and adipokines favorably. Inflammation associated with obesity can also be characterized pathologically when macrophages surround necrotic adipocytes in what are called crown-like structures (CLS). Furthermore, increased central obesity as measured by waist-to-hip ratios, may be associated with hypermethylation of certain breast cancer genes, and physical activity can reduce methylation of certain breast cancer-associated genes.

The Women's Intervention Nutrition Study (WINS) demonstrated that women with early-stage breast cancer receiving conventional cancer management randomized to a dietary intervention group had lower risk of relapse compared to those in a control group in those who lost weight. While women with a diagnosis of breast cancer are therefore recommended to maintain ideal body weight, limited progress has been made in developing feasible weight loss programs. However, collaborators from the Welch Center for Prevention, Epidemiology, and Clinical Research at the Johns Hopkins University have recently reported impressive and sustained weight loss in randomized controlled trials designated Practice-based Opportunities for Weight Reduction (POWER) in obese women with at least one cardiovascular risk factor using a remote-support weight loss intervention.

The overall goal of this study is to determine the effectiveness of the remote-support weight loss intervention of the POWER study, designated POWER-remote, in women with early breast cancer who are overweight or obese, and to assess the effects of weight loss of ≥5% body weight at 6 months and on biomarkers associated with obesity, inflammation, and breast cancer. The data will be used to implement a clinical intervention available to all overweight and obese women with breast cancer, and to design definitive studies assessing the impact of weight loss and biomarker modulation on risk of recurrent disease or development of new primary breast cancers.

연구 유형

중재적

등록 (실제)

96

단계

  • 해당 없음

연락처 및 위치

이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.

연구 장소

    • Maryland
      • Baltimore, Maryland, 미국, 21287-0013
        • Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

참여기준

연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.

자격 기준

공부할 수 있는 나이

18년 이상 (성인, 고령자)

건강한 자원 봉사자를 받아들입니다

아니

연구 대상 성별

여성

설명

Inclusion Criteria:

  • Women
  • 18 years or older
  • Ductal carcinoma in situ (DCIS) or stage I-III invasive breast cancer
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-2
  • Current BMI ≥ 25 kg/m2 and weight ≤ 400 lbs, and willing to lose >5% of their body weight. NOTE: Participants may not have documented weight loss greater than 5% of body weight from time of diagnosis. Exceptions that are felt to be due to surgical or other procedures (e.g., mastectomies or reconstruction) may be allowed with prior approval of the Protocol Chair/designee.
  • Patients must have completed local therapy (i.e. surgery and radiation therapy), and any preoperative or adjuvant chemotherapy within >3 and <60 months of registration. NOTE: Concurrent anti-HER2 therapy is permitted. Concurrent endocrine breast cancer therapy is permitted; patients may enroll >3 months after initiation of hormone therapy if expected to continue the same hormone agent for at least the first 6 months of the study. Concurrent enrollment in other interventional or drug clinical trials is at the discretion of the Protocol Chair.
  • Willingness to change diet, physical activity and weight.
  • To ensure compliance with the POWER-remote and PatientViewpoint programs, patients must meet the following: prior experience with web forms and feels able to use the POWER-remote web program and PatientViewpoint; has or is able to download Internet Explorer 8+, Firefox 3.0+, Safari 4.0+, Chrome 4.0+, and Adobe Flash Player 10; familiarity with and access to internet at least 4 days per week; use of an email program or willing and able to establish one for this study; and, able to read and write the English language without assistance.
  • Patient is aware of her diagnosis, understands the study regimen, its requirements, risks, and discomforts, and is able and willing to sign an informed consent form.

Exclusion Criteria:

  • History of another prior cancer within the last 5 years, with the exception of another breast cancer, adequately treated cone-biopsied in situ carcinoma of the cervix uteri, and basal or squamous cell carcinoma of the skin
  • Medical condition likely to hinder accurate measurement of weight, including any condition: for which weight loss is contraindicated, which would likely cause weight loss, or which would affect adipokine and inflammatory markers (e.g., end stage renal disease (ESRD) on dialysis, cirrhosis, autoimmune disease, adrenal disease, and history of bariatric surgery).
  • The use of the following medications are excluded: insulin or sulfonylureas; patients with thyroid disease who are not on stable doses of thyroid medication for at least the past 6 months; medications that cause weight loss (e.g., topiramate, bupropion, exenatide, lorcaserin, phentermine or orlistat) within the past 3 months; medications that are likely to cause weight gain or prevent weight loss (e.g., corticosteroids, lithium, olanzapine, risperidone, clozapine, oral contraceptive pills, hormone replacement therapy) within the past 3 months; medications that may affect adipokine or inflammatory markers (e.g., sulfonylureas, glitazones, insulin, steroids, ACE inhibitors, beta blockers and statins) unless started ≥3 months prior to enrollment, or chronic NSAIDS (defined as use of ≥3 times a week) for ≥1 month.
  • Pregnant or nursing within past 6 months, or plans to become pregnant in the next year
  • Currently enrolled or planning to enroll in a weight loss program (e.g., Innergy, Weight Watchers, Jenny Craig, Nutrisystem, and Medifast).

공부 계획

이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.

연구는 어떻게 설계됩니까?

디자인 세부사항

  • 주 목적: 치료
  • 할당: 무작위
  • 중재 모델: 병렬 할당
  • 마스킹: 없음(오픈 라벨)

무기와 개입

참가자 그룹 / 팔
개입 / 치료
실험적: POWER-remote
Participants will start a weight loss program called POWER-remote for Breast Cancer Survivors. This program involves two main components: an online portion accessed on a computer through the internet and a telephone portion to help monitor progress.
Web-based weight loss program.
활성 비교기: Self-directed
Participants will receive a pamphlet entitled "Aim for a Healthy Weight", to help guide weight loss goals without access to the web-based POWER-remote system and coach support.
Pamphlet entitled "Aim for a Healthy Weight" will be given.

연구는 무엇을 측정합니까?

주요 결과 측정

결과 측정
측정값 설명
기간
Change in body weight
기간: After 12 months
To compare the proportion of women with early stage breast cancer, who have completed all local therapy and adjuvant chemotherapy, who lose ≥5% of their baseline body weight after 6 and 12 months between a control arm (self-directed weight loss) and an experimental arm (POWER-remote)
After 12 months

2차 결과 측정

결과 측정
측정값 설명
기간
Change in biomarkers
기간: After 12 months
To evaluate the effects of weight loss and POWER-remote on serum biomarkers (including fasting glucose, fasting lipids, fasting insulin, insulin like growth factor (IGF), high-sensitivity C-reactive protein (hsCRP), interleukin 1 and 6 (IL-1 and IL-6), tumor necrosis factor- alpha (TNF-α), leptin, adiponectin, and estradiol) at baseline and 6 months
After 12 months
Change in PROs (Patient Reported Outcomes)
기간: After 12 months
To evaluate the effects of weight loss and POWER-remote on PROs, with a specific interest in comparing the change in Physical Function at 6 months from baseline as a function of weight los
After 12 months

공동 작업자 및 조사자

여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.

수사관

  • 연구 의자: Vered Stearns, M.D., Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins

연구 기록 날짜

이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.

연구 주요 날짜

연구 시작

2013년 7월 1일

기본 완료 (실제)

2016년 12월 1일

연구 완료 (실제)

2016년 12월 1일

연구 등록 날짜

최초 제출

2013년 6월 3일

QC 기준을 충족하는 최초 제출

2013년 6월 5일

처음 게시됨 (추정)

2013년 6월 6일

연구 기록 업데이트

마지막 업데이트 게시됨 (실제)

2018년 2월 5일

QC 기준을 충족하는 마지막 업데이트 제출

2018년 1월 31일

마지막으로 확인됨

2018년 1월 1일

추가 정보

이 연구와 관련된 용어

기타 연구 ID 번호

  • J12128 (기타 식별자: SKCCC at Johns Hopkins)

개별 참가자 데이터(IPD) 계획

개별 참가자 데이터(IPD)를 공유할 계획입니까?

아니요

IPD 계획 설명

All participant data is deidentified and will be grouped together when presenting results.

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. .

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