NCT02510430

Brief Summary

Excessive sitting time (sedentary time) has been associated with risk of insulin resistance and other factors which may be relevant to breast cancer prognosis. This 8-week study tests different strategies for helping breast cancer survivors to modify their levels of sitting time. Participants will be assigned with equal likelihood to one of three groups (1) overall reduction in sitting time, (2) interruption of sitting time with standing breaks, and (3) usual care.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
59

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2015

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 24, 2015

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 29, 2015

Completed
4 months until next milestone

Study Start

First participant enrolled

November 30, 2015

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 24, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 24, 2018

Completed
Last Updated

July 6, 2018

Status Verified

July 1, 2018

Enrollment Period

2.2 years

First QC Date

July 24, 2015

Last Update Submit

July 5, 2018

Conditions

Outcome Measures

Primary Outcomes (1)

  • Feasibility as measured by recruitment and retention rates

    Feasibility of recruiting participants to the study

    12 months

Secondary Outcomes (3)

  • Sedentary behavior as measured by ActivPal

    7 days

  • Physical activity as measured by ActiGraph

    7 days

  • Sedentary time as measured by ActiGraph

    7 days

Study Arms (3)

Reducing Sitting Time Group

EXPERIMENTAL

This group will be asked to reduce overall accumulated sitting time by 2 hours per day.

Behavioral: Reducing Sitting Time Group

Re-Patterning Sitting Time Group

EXPERIMENTAL

This group will be asked to use standing breaks to interrupt long bouts of sitting time.

Behavioral: Re-Patterning Sitting Time Group

Usual Care

PLACEBO COMPARATOR

This is an attention control group and is not asked to make changes to sitting time.

Behavioral: Usual Care

Interventions

This is a behavioral intervention to help women interrupt long bouts of sitting time by incorporating standing breaks into their lifestyle.

Re-Patterning Sitting Time Group

This is a behavioral intervention to help women reduce their overall accumulated sitting time by 2 hours per day.

Reducing Sitting Time Group
Usual CareBEHAVIORAL

This intervention consists solely of follow-up contact to control for attention effects and reduce attrition.

Usual Care

Eligibility Criteria

Sexfemale
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • diagnosed with Stage 0-III breast cancer. Bilateral or multiple primary breast cancers are permitted.
  • Completed primary treatment defined as definitive surgery, (neo)adjuvant chemotherapy and/or (neo)adjuvant radiation. Participants still receiving adjuvant endocrine or HER2 targeted therapies are eligible.
  • Report sitting for ≥8 accumulated waking hours on a typical day,
  • Willing and able to attend 3 study visits at the UW,
  • Willing to attempt reduction of sitting time,
  • Use the internet on a regular basis,
  • Willing and able to complete study requirements, and
  • Currently considered postmenopausal (no menstrual periods in past 12 months), even if pre-menopausal at diagnosis.

You may not qualify if:

  • Evidence of recurrence or metastatic disease,
  • Unable to move from sitting to standing without difficulty and to walk 1 block.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

UW Hospital

Madison, Wisconsin, United States

Location

MeSH Terms

Conditions

Breast Neoplasms

Condition Hierarchy (Ancestors)

Neoplasms by SiteNeoplasmsBreast DiseasesSkin DiseasesSkin and Connective Tissue Diseases

Study Officials

  • Lisa A Cadmus-Bertram, Ph.D.

    University of Wisconsin, Madison

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 24, 2015

First Posted

July 29, 2015

Study Start

November 30, 2015

Primary Completion

January 24, 2018

Study Completion

January 24, 2018

Last Updated

July 6, 2018

Record last verified: 2018-07

Locations