NCT05053113

Brief Summary

This clinical trial tests the effect of a physical activity intervention that emphasizes support between partners in women who are not physically active. Decisions about and participation in physical activity often involve others in one's social circle, including family and friends. Social support for physical activity and having someone with whom to engage in physical activity may promote behavioral change and help increase moderate-intensity physical activity in inactive women.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
500

participants targeted

Target at P75+ for not_applicable

Timeline
9mo left

Started Jul 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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

Study Progress84%
Jul 2022Feb 2027

First Submitted

Initial submission to the registry

September 8, 2021

Completed
14 days until next milestone

First Posted

Study publicly available on registry

September 22, 2021

Completed
10 months until next milestone

Study Start

First participant enrolled

July 27, 2022

Completed
4.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 2, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 2, 2027

Last Updated

May 4, 2026

Status Verified

April 1, 2026

Enrollment Period

4.5 years

First QC Date

September 8, 2021

Last Update Submit

April 28, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in objective minutes per week of moderate-intensity physical activity

    Will use a linear mixed model (LMM) analysis, which includes the intervention as a fixed effect predictor and a dyad-specific random intercept to account for the dependent nature of the nested design (in the dyadic intervention group) to assess if the dyadic intervention led to increased moderate-intensity physical activity, relative to the individual intervention. will also assess changes in physical activity across time (i.e., at 6 and 12 months after baseline) using longitudinal data, where both within-dyad and within-subject (repeated measures across time points) correlations will be accounted for. Relevant covariates (e.g., age, race/ethnicity, dyad relationship, education, household income and composition, employment status, neighborhood environmental characteristics) will be adjusted for in the analysis. Potential effect modifiers, e.g., depressive symptoms, perceived stress, neighborhood environmental characteristics, will be explored.

    Through study completion, an average of 1 year

Study Arms (3)

Group 1 (phone call, FitBit, newsletter, accelerometer)

EXPERIMENTAL

Participants receive phone calls over 30-45 minutes each from a health coach weekly during month 1, twice monthly during months 2-4, and monthly during months 5-6 for a total of 12 phone calls that focus on identifying needs, practicing autonomy supportive behaviors, and the development of a mutual support plan. Participants also engage in at least one physical activity per week with their partner and monitor their own and each other's activity using a FitBit. Participants also wear an accelerometer for a minimum of 10 hours a day for 7 days. Participants also receive an electronic newsletter twice monthly during months 1-3 and monthly during months 4-6 that provides educational physical activity-related information and tips for overcoming barriers to physical activity.

Device: Activity MonitorOther: Educational InterventionOther: Survey AdministrationBehavioral: Telephone-Based Intervention

Group 2A (phone call, FitBit, newsletter, accelerometer)

ACTIVE COMPARATOR

Participants receive phone calls from a health coach as in Intervention I that focus on providing support for behavioral skills, including monitoring physical activity, goal-setting, and problem-solving to overcome barriers to physical activity. Participants utilize a FitBit to monitor their physical activity and receive electronic newsletters twice monthly during months 1-3 and monthly during months 4-6 that provides educational physical activity-related information and tips for overcoming barriers to physical activity. Participants also wear an accelerometer for a minimum of 10 hours a day for 7 days.

Device: Activity MonitorOther: Educational InterventionOther: Survey AdministrationBehavioral: Telephone-Based Intervention

Group 2B (FitBit, newsletter, accelerometer)

ACTIVE COMPARATOR

Participants utilize a FitBit to monitor their physical activity and receive electronic newsletters twice monthly during months 1-3 and monthly during months 4-6 to share basic health education related to physical activity and provide support for engagement. Participants also wear an accelerometer for a minimum of 10 hours a day for 7 days.

Device: Activity MonitorOther: Educational InterventionOther: Survey Administration

Interventions

Monitor physical activity with FitBit

Also known as: Activity Tracker, Activity Tracker Device, Physical Activity Measuring Device
Group 1 (phone call, FitBit, newsletter, accelerometer)Group 2A (phone call, FitBit, newsletter, accelerometer)Group 2B (FitBit, newsletter, accelerometer)

Receive educational newsletter

Also known as: Education for Intervention, Intervention by Education, Intervention through Education, Intervention, Educational
Group 1 (phone call, FitBit, newsletter, accelerometer)Group 2A (phone call, FitBit, newsletter, accelerometer)Group 2B (FitBit, newsletter, accelerometer)

Ancillary studies

Group 1 (phone call, FitBit, newsletter, accelerometer)Group 2A (phone call, FitBit, newsletter, accelerometer)Group 2B (FitBit, newsletter, accelerometer)

Receive phone call from health coach

Group 1 (phone call, FitBit, newsletter, accelerometer)Group 2A (phone call, FitBit, newsletter, accelerometer)

Eligibility Criteria

Age18 Years - 65 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Self-identify as female
  • Age 18-65 years
  • Speak English or Spanish
  • Physically able to engage in low-to-moderate PA as assessed by the PA Readiness Questionnaire (PAR-Q), or with medical clearance
  • Insufficient self-reported moderate-to-vigorous PA (\< 150 minutes/week)
  • Able to enroll with one eligible adult female partner
  • Valid home address in the greater Houston area
  • Have a functioning smartphone and able and willing to send and receive text messages
  • Willing to use the Fitbit app and device
  • Blood pressure reading \< 160/100 mm Hg, or with medical clearance

You may not qualify if:

  • Pregnancy or considering pregnancy during the study period, self-reported
  • Currently participating in a program or research study to promote physical activity or weight loss
  • Plans to move outside the greater Houston area during the study period

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

M D Anderson Cancer Center

Houston, Texas, 77030, United States

RECRUITING

Related Links

MeSH Terms

Interventions

Fitness TrackersEarly Intervention, EducationalEducational StatusMethods

Intervention Hierarchy (Ancestors)

Diagnostic EquipmentEquipment and SuppliesWearable Electronic DevicesElectrical Equipment and SuppliesChild Health ServicesCommunity Health ServicesHealth ServicesHealth Care Facilities Workforce and ServicesPreventive Health ServicesSocioeconomic FactorsPopulation CharacteristicsInvestigative Techniques

Study Officials

  • Larkin Strong

    M.D. Anderson Cancer Center

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

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

Study Record Dates

First Submitted

September 8, 2021

First Posted

September 22, 2021

Study Start

July 27, 2022

Primary Completion (Estimated)

February 2, 2027

Study Completion (Estimated)

February 2, 2027

Last Updated

May 4, 2026

Record last verified: 2026-04

Locations