This study will perform an early Phase I feasibility study with single-arm, double-baseline repeated measured design. The investigators will test the feasibility of using focal vibration to improve symptoms of persistent CIPN.
This is an initial Phase I single-site, single-arm, double-baseline repeated measures feasibility study of wearable focal vibration (FV with Myovolt) for persistent chemotherapy-induced peripheral neuropathy. We will enroll up to 15 cancer survivors who are cancer-free and meet all other inclusion/ exclusion criteria, including CIPN symptoms at least 3 months after final chemotherapy infusion. Participants will undergo baseline assessments (V1) of questionnaires and performance tests, and may repeat these tests within a few days as a double-baseline (V2). In addition, they complete 7-days of baseline symptom monitoring by diary before starting 6 weeks of daily at-home therapy with a Myovolt wearable FV device. A study coach will check in by phone or video calls during the intervention period. Participants undergo post-testing immediately after the 6-week intervention (V3), and after another 6 weeks without FV (V4). In total, participants attend 3-4 onsite study visits, a 6-week intervention period with weekly remote check-in contact from the study team, and a 6-week intervention-free follow-up period with at least one remote check-in. Participants will keep a provided daily symptom diary during the primary study period (i.e., 6 weeks), and at least weekly in the 6-week follow-up period.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
15
Myovolt is a wearable rehabilitative device that delivers vibration to the region of the body where the motors are worn. Participants are asked to apply the vibration to specific leg locations twice a day, for about 30 minutes at a time, and to record their response using a provided log. They may be asked to try applying the device at different location or using different vibration parameters (pulse frequency or intensity).
Stephenson Cancer Center, OU Health
Oklahoma City, Oklahoma, United States
Feasibility of enrollment
Percent of interested individuals who enrolled.
Time frame: Baseline
Adherence to Myovolt focal vibration
Number of completed days and sessions of Number of days (or sessions) the intervention was worn, as a percentage of the number of days (or sessions) the device was prescribed.
Time frame: After 6-week intervention
Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity-12 (FACT-GOG/NTX-12) Symptom Inventory
The FACT-GOG/Ntx-12 is a composite measure of CIPN symptoms and functional impairments and related quality of life, scored from 0 to 48 where a higher score indicates worse neuropathy symptoms.
Time frame: Change from Baseline after 6-week Intervention
Neuropathy Total Symptom Score-6 (NTSS-6)
The NTSS-6 rates neuropathic symptoms (severity and frequency) in 6-categories. Scores range from 0 to 21.96, and higher scores indicate higher symptom burden.
Time frame: Change from Baseline after 6-week Intervention
Patient Neurotoxicity Questionnaire (PNQ)
The PNQ grades the extent of sensory and motor neuropathy in cancer cohorts scored from grade A (no neuropathy, also Grade 0) to grade E (severe neuropathy, also Grade 4) for both sensory and motor symptoms.
Time frame: Change from Baseline after 6-week Intervention
Global Rating of Change (GROC) scale
The GROC scale is a universal clinical outcome providing a simple but comprehensive "umbrella" patient-perspective of change with scores ranging from -5 (very much worse) to 0 (unchanged) to +5 (completely recovered).
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Time frame: After 6-week withdrawal period
Long-term retention
Number of enrolled individuals retained for long-term follow-up(after 6-week withdrawal period), and reasons for loss to follow-up, when available.
Time frame: After 6-week withdrawal period
Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity-12 (FACT-GOG/NTX-12) Physical Well-Being Subscale
The FACT-GOG/Ntx-12 PWB subscale is a patient-report measure of physical symptoms and function. Scored from 0 to 28, higher scores indicate better well-being.
Time frame: Change from Baseline after 6-week Intervention
Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity-12 (FACT-GOG/NTX-12) Functional Well-Being Subscale
The FACT-GOG/Ntx-12 FWB subscale is a patient-report measure of functional well-being with questions about work, leisure and sleep, and a summary quality of life(QoL)rating. Scores range from 0 to 28, higher scores indicate better well-being and QoL.
Time frame: Change from Baseline after 6-week Intervention
Manual Muscle Testing (MMT) of Toes
MMT assesses muscle strength by an assessor applying pressure against the toes as the participant lifts or curls their toes and is rated from 0 (weakest) to 5 (strongest).
Time frame: Change from Baseline after 6-week Intervention
Toe Strength using a quantifiable toe measurement device
The toe strength quantifiable toe measurement device measures toe strength by reading force measurements when participants sit with foot strapped on a portable base of a load-cell prototype device of PI Dr. Hile and her team, with toe inserted into housing against which they pull up for a few seconds, or press down.
Time frame: Change from Baseline after 6-week Intervention
Vibration Perception Threshold using Biothesiometer
Vibratory threshold will be measured by a non-invasive vibrating probe (biothesiometer) placed on the skin. Vibration intensity is measured in frequency where the frequency is increased until the participant reports feeling it (eyes closed) from 0 to 50 Hz.
Time frame: Change from Baseline after 6-week Intervention