Evaluating the Use of Wearable Biosensors and PROs to Assess Performance Status in Patients With Cancer

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Cedars-Sinai Medical Center






Device: Fitbit Charge HR®

Study type


Funder types




Details and patient eligibility


The purpose of this study is to evaluate the association between wearable biosensor data, performance status and patient-reported outcomes in cancer patients. Participants in this study will wear a biosensor (Fitbit Charge HR®) for 15 days and respond to questionnaires that will assess patient reported outcome measures including physical function, emotional distress, pain interference, sleep disturbance and fatigue. Eligible patients will have a diagnosis of advanced cancer. Patients must be greater than 18 years of age and be English speaking due to the questionnaires that will be administered during the study. Patients must also be ambulatory (use of walking aids, such as cane and rollator, is acceptable) and have access to a smartphone with internet access (IOS or Android). It is also necessary for patients to have scheduled oncology clinic visits at least once every 2 weeks.

Full description

This study aims to measure association between biosensor data, performance status and patient-reported outcomes. This study will also evaluate the feasibility of using Fitbit activity monitors in a cancer population to capture objective activity data. The study will be recruiting patients with advanced cancer diagnoses (stage 3 or 4) and will be referred by the treating oncologist. This is an exploratory study that will follow patients with stage 3-4 cancer for a period of 15 days. Subjects will be provided with a Fitbt Charge HR® activity monitor. They will be requested to wear the Fitbit Charge HR® at all times, except for while bathing or performing other activities where the activity monitor can become submerged in water. Subjects will be asked to wear the Fitbit Charge HR® for two weeks. They will be seen in the clinic at baseline, at the end of week 1 (day 8) and at end of 2 weeks (day 15) for physical exam, evaluation of performance status by both treating oncologist and practice nurse using standardized scales and administration of PROMIS® questionnaires. Patients will be followed up to 6 months after the last clinic visit for adverse events, hospitalization and survival. Thirty subjects will be enrolled in this study.


37 patients




18+ years old


No Healthy Volunteers

Inclusion criteria

  • Diagnosis of advanced solid malignancy (Stage 3 or 4) with measurable disease, who are being followed by an oncologist
  • 18 years or older
  • English speaking
  • Ambulatory (use of walking aids, such as cane and rollator, is acceptable)
  • Access to IOS or Android smartphone with internet access
  • Expected to have oncology clinic visits at least once every 2 weeks
  • Have an understanding, ability, and willingness to fully comply with study procedures and restrictions
  • Ability to consent

Exclusion criteria

  • Allergy to surgical steel or elastomer/rubber
  • Using a pacemaker, implantable cardiac defibrillator, neurostimulator, hearing aids, cochlear implants, or other electronic medical equipment

Trial design

37 participants in 1 patient group

Biosensor + Patient Reported Outcomes (PRO)
Participants will wear a biosensor (Fitbit Charge HR®) continuously for a period of 15 days and respond to PROMIS questionnaires. This is not a chemotherapy or treatment-intervention trial.
Device: Fitbit Charge HR®

Trial contacts and locations



Data sourced from clinicaltrials.gov

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