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Impact of Weight Loss Interventions for Overweight Breast Cancer Survivors (VCC0910)

14. januar 2013 opdateret af: Kim Dittus, University of Vermont

Obesity is an epidemic and the majority of breast cancer survivors are overweight or obese. The American Cancer Society has called for weight loss treatment to be standard of care for overweight women with breast cancer. During therapy women with breast cancer often gain weight and lose lean muscle mass. Overweight breast cancer survivors are more likely to have their cancer come back. The reason why overweight breast cancer survivors are more likely to re-occur has not been well studied, but changes in how insulin works may contribute. Overweight survivors are also at risk for the other chronic diseases associated with obesity. Fortunately, weight losses of as little as 5-7% of baseline body weight can improve risk of chronic disease. An effective behaviorally-based, lifestyle intervention delivered via the internet has been developed at the University of Vermont. This successful intervention has not been tested among breast cancer survivors. Given that women tend to lose muscle mass during cancer therapy the addition of a resistance training component to the weight loss intervention may be important. Therefore the overall goal of this project is to pilot test a proven distantly- delivered behavioral weight loss intervention among overweight breast cancer survivors and to evaluate whether a resistance program results in improvements in lean body mass, while studying how both interventions change insulin sensitivity.

Specifically, this project is a randomized, controlled clinical trial designed to test the effectiveness and acceptability of a 6-month behavioral weight loss intervention with and without resistance training. Participants will be randomized to one of two groups: 1) behavioral weight control treatment via the Internet; or 2) behavioral weight control treatment via the Internet plus a resistance training program. Women eligible to participate include overweight breast cancer survivors who are age 50 or older and 6-36 months past receiving chemotherapy. Assessments will be conducted at baseline and six months and will include measures of body weight, muscle mass, adherence to treatment, and insulin sensitivity.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

72

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Forenede Stater
    • Vermont
      • Burlington, Vermont, Forenede Stater, 05405
        • Vermont Cancer Center

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

40 år til 65 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Kvinde

Beskrivelse

Inclusion Criteria:

  • Post-menopausal (last period 12 mos prior to study enrollment or oophorectomy)
  • Age 40-65
  • DCIS, Stage I, II, III Breast Cancer
  • BMI between 27-50
  • Completed chemotherapy to treat early stage breast cancer (Stage I-III) no less then 6 months and no more than 48 months from start of study or for specific aim 3 Diagnosis of DCIS or Stage I breast cancer who did not receive chemotherapy.

Exclusion Criteria:

  • Participant can not have a psychotic or central nervous system impairment that would limit compliance with study requirements
  • Evidence of metastatic disease
  • Chemotherapy for cancer other than breast cancer
  • Diabetes mellitus, uncontrolled hypo or hyper thyroidism, liver failure
  • Celiac sprue, inflammatory bowel disease
  • Inability to walk for exercise
  • Lymphedema as indicated by a 2 cm circumference difference at the elbow
  • weight loss in the previous 6 months of 10 lbs or greater

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Støttende pleje
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: weight loss intervention
Behavioral weight loss intervention
Adfærdsmæssigt: weight loss intervention
Behavioral weight loss intervention
Eksperimentel: Weight Loss plus Resistance Training
Behavioral weight loss intervention with the addition of resistance training
Adfærdsmæssigt: Weight Loss
Behavioral weight loss intervention
Aktiv komparator: Comparator
Group of women who did not receive chemotherapy
Adfærdsmæssigt: Weight Loss
Behavioral weight loss intervention

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Identify changes in energy balance and insulin sensitivity parameters in overweight breast cancer survivors after a behavioral weight loss intervention.
Tidsramme: Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Primary outcome measures include weight, fat free mass, fat mass, total and active energy expenditure, calorie intake and oral glucose tolence test
Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Determine whether the addition of resistance training to a behavioral weight loss intervention preserves muscle mass and improves weight loss or insulin sensitivity in breast cancer survivors.
Tidsramme: Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Outcomes include weight, fat free mass, fat mass, strength (upper extremity and lower extremity) and oral glucose tolerence test
Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Identify differences in weight loss and energy balance between post menopausal breast cancer survivors who received chemotherapy and those who did not receive chemotherapy as part of their oncologic management.
Tidsramme: Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Outcomes: weight, fat mass, Fat free mass, total and active energy expenditure, calorie intake
Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Determine differences in insulin sensitivity parameters between post menopausal breast cancer survivors who received chemotherapy and those who did not.
Tidsramme: Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Oral glusoe tolerence test
Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Determine feasibility, acceptability, and safety of weight loss intervention without resistance training for breast cancer survivors.
Tidsramme: Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Outcomes include compliance as determined by percent of indiviudals completing each lesson and completing the program. Saftery is assessed by identifying injury or worsening lymphedema. Acceptability is determined with a survey.
Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Assess changes in health-related quality of life after a weight loss intervention.
Tidsramme: Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Outcomes include SF-36 and FACT-fatigue surveys
Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Determine feasibility, acceptability, and safety of weight loss intervention with resistance training for breast cancer survivors.
Tidsramme: Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.
Outcomes include compliance as determined by percent of indiviudals completing each lesson and completing the program. Saftery is assessed by identifying injury or worsening lymphedema. Acceptability is determined with a survey.
Time frame is before & after the intervention. The intervention is 6 months. 4 groups of 10-22 women go through together. The groups start at different times. The last group starts May 2011. The last measurements will be obtained early Dec. of 2011.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Vermont

Samarbejdspartnere

University of Vermont Medical Center

Efterforskere

  • Ledende efterforsker: Kim L Dittus, MD, PhD, University of Vermont/ Fletcher Allen Health Care

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Hjælpsomme links

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. oktober 2009

Primær færdiggørelse (Faktiske)

1. januar 2012

Studieafslutning (Faktiske)

1. januar 2012

Datoer for studieregistrering

Først indsendt

12. april 2010

Først indsendt, der opfyldte QC-kriterier

28. november 2011

Først opslået (Skøn)

30. november 2011

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

15. januar 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

14. januar 2013

Sidst verificeret

1. januar 2013

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • 10-031

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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