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Completed Not applicable Interventional Accepts healthy volunteers

Improving Physical Activity in Young Adult Cancer Survivors

ClinicalTrials.gov ID: NCT03233581

Public ClinicalTrials.gov record NCT03233581. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 10, 2026, 9:01 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The Primary Goal is to conduct a 12 week pilot randomized controlled trial (RCT) of the Fitbit Flex, a popular, affordable, wearable physical activity tracking device, and the Fitbit mobile health (mHealth) app. The target population will be cancer survivors 18-39 years old recruited from the Seattle Cancer Care Alliance. For the intervention group, peer influences will be engaged via a private, social network (e.g. a Facebook group) customized for survivors. Measurements will be completed (1) at baseline, prior to randomization, and (2) during the final week of the intervention period (follow-up measure). This pilot study will provide initial proof of concept and allow for further customization of the intervention for cancer survivors in anticipation of a future, larger proposal to study physical activity and related outcomes over a multi-year period. Besides conducting exploratory analyses of primary and secondary outcomes for this pilot RCT, we also specify feasibility criteria including: (1) recruiting 50 cancer survivors ages 18-39 years and between 1.0-5.0 years from the completion of active cancer therapy, (2) intervention participants wear the Fitbit Flex on the majority of all intervention days during the 12-week intervention period, and (3) ≥75% of all participants complete online questionnaire data collection at Time 1 and Time 2.

Study identification

NCT ID
NCT03233581
Recruitment status
Completed
Study type
Interventional
Phase
Not applicable
Enrollment
50 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 39 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Sep 11, 2017
Primary completion
May 5, 2018
Completion
May 21, 2018
Last update posted
May 24, 2018

2017 – 2018

United States locations

U.S. sites
2
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Fred Hutchinson Cancer Research Center Seattle Washington 98109
Seattle Children's Research Institute Seattle Washington 98145-5005

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03233581, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 24, 2018 · Synced Sep 10, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03233581 live on ClinicalTrials.gov.

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