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Usability of a Multimodal External Neuromodulatory Device to Relieve Acute Low Back Pain

Addressing Feasibility of the DuoTherm in Acute and Chronic Low Back Pain

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04494841
Enrollment
20
Registered
2020-07-31
Start date
2020-01-17
Completion date
2021-02-18
Last updated
2022-10-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Low Back Pain, Low Back Pain, Recurrent, Low Back Sprain

Keywords

Medical Device, Buzzy, Vibration, thermomechanical

Brief summary

Ten patients with acute or chronic low back pain will be invited to try a multimodal device for 20 minutes. Pain will be recorded prior to and after use, and feedback on the device will be elicited.

Detailed description

To facilitate data collection of a short-term intervention, the investigators chose to enroll patients from a mixed physical therapy/chiropractic practice with demographic and economic diversity in the metro Washington area. The neuromodulatory device will have patient controlled frequencies at 50Hz, 100Hz, and 180Hz attached to a 12 x 22 cm metal plate ergonomically curved to fit the low back. The device will be wearable with a neoprene belt on both sides for patients to adjust pressure. The metal pocket in our device holds a 221g clay pack capable of being frozen to 15F or heated to 110F or patient tolerance, with 30 minute thermal capacity. A convenience sample of 10 patients at the clinic was invited to give feedback on the prototype device after informed consent. Changes suggested were incorporated and after informed consent a second group of ten gave will give feedback with the production-ready device.

Interventions

Low back plate belt with mechanicothermal and pressure intervention options.

Sponsors

National Institute on Drug Abuse (NIDA)
CollaboratorNIH
Sport and Spine Rehab Clinical Research Foundation
CollaboratorOTHER
MMJ Labs LLC
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DEVICE_FEASIBILITY
Masking
NONE

Intervention model description

Consecutive low back pain patients were offered to try a new device and give feedback on a prototype. Once the feedback was obtained, the changes were incorporated into a production-ready model and re-evaluated.

Eligibility

Sex/Gender
ALL
Age
18 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

* Acute or chronic low back pain as chief complaint * Capacity to understand all relevant risks and potential benefits of the study (informed consent); * Willingness to communicate information

Exclusion criteria

* Radicular pain likely reflecting a surgical or mechanical problem * BMI greater than 30 (device won't fit) * Sensitivity to cold or vibration (e.g Raynaud's or Sickle Cell Disease) * Diabetic neuropathy rendering a patient unable to determine if the device is too hot * New neurologic deficits * Skin lesions over the low back area * Contraindication to any medication for pain management that would impact analgesic use record * Inability to apply DuoTherm

Design outcomes

Primary

MeasureTime frameDescription
Change in Pain: Visual Analog Scale (VAS)Before use of device (baseline) and after use of device approximately 30 minutes - 20 minutes of use, with 10 minutes for evaluationDifference in 10 cm VAS printed on paper from 0 (no pain) to 10 (most pain) before and after use of the device, higher value indicates a greater pain reduction, 1.8 cm is considered clinically relevant.
Participants' Choice in Thermal Options30 minutesOne of four options: hot, cold, none, both
Would You RecommendAfter 30 minutesBinary approval or disapproval of device

Secondary

MeasureTime frameDescription
Subjective Pain Relief30 minutes7-item Likert scale of 1 (much worse) to 7 (much better) pain relief over the time of the study

Countries

United States

Participant flow

Participants by arm

ArmCount
DuoTherm VibraCool Back Device
Patients will be offered a pain relief belt device incorporating multiple speeds of vibration and optional heat, cold, and pressure delivered through a sculpted metal plate. They will be able to choose from 8 patterns of vibration with the multiple motors (50, 100, 200Hz), and hot or cold, and will wear the device for 20 minutes. Duotherm VibraCool Back Device: Low back plate belt with mechanicothermal and pressure intervention options.
20
Total20

Baseline characteristics

CharacteristicDuoTherm VibraCool Back Device
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
1 Participants
Age, Categorical
Between 18 and 65 years
19 Participants
Age, Continuous41.9 years
STANDARD_DEVIATION 11
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
17 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
18 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
1 Participants
Region of Enrollment
United States
20 participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
9 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 20
other
Total, other adverse events
0 / 20
serious
Total, serious adverse events
0 / 20

Outcome results

Primary

Change in Pain: Visual Analog Scale (VAS)

Difference in 10 cm VAS printed on paper from 0 (no pain) to 10 (most pain) before and after use of the device, higher value indicates a greater pain reduction, 1.8 cm is considered clinically relevant.

Time frame: Before use of device (baseline) and after use of device approximately 30 minutes - 20 minutes of use, with 10 minutes for evaluation

ArmMeasureValue (MEAN)Dispersion
DuoTherm VibraCool Back DeviceChange in Pain: Visual Analog Scale (VAS)2.1 units on a scale (centimeters)Standard Deviation 1.4
Primary

Participants' Choice in Thermal Options

One of four options: hot, cold, none, both

Time frame: 30 minutes

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
DuoTherm VibraCool Back DeviceParticipants' Choice in Thermal OptionsBoth0 Participants
DuoTherm VibraCool Back DeviceParticipants' Choice in Thermal OptionsHot9 Participants
DuoTherm VibraCool Back DeviceParticipants' Choice in Thermal OptionsCold11 Participants
DuoTherm VibraCool Back DeviceParticipants' Choice in Thermal OptionsNone0 Participants
Primary

Would You Recommend

Binary approval or disapproval of device

Time frame: After 30 minutes

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
DuoTherm VibraCool Back DeviceWould You RecommendApprove20 Participants
DuoTherm VibraCool Back DeviceWould You RecommendDisapprove0 Participants
Secondary

Subjective Pain Relief

7-item Likert scale of 1 (much worse) to 7 (much better) pain relief over the time of the study

Time frame: 30 minutes

ArmMeasureValue (MEAN)Dispersion
DuoTherm VibraCool Back DeviceSubjective Pain Relief5.3 score on a scaleStandard Deviation 0.98

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026