ClinicalTrials.gg
CompletedNCT03498287Updated Jul 14, 2020Results posted

Non-invasive CTS Device Clinical Trial

An interventional study of Study Device and Sham Device in Carpal Tunnel Syndrome, sponsored by Pressure Profile Systems, Inc.. Completed at 3 sites in United States. Open to participants aged 21 Years to 65 Years. Per ClinicalTrials.gov, last updated 2020-07-14.

Sponsored by Pressure Profile Systems, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
88
Allocation
Randomized
Ages
21 Years to 65 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 97 studies in Carpal Tunnel Syndrome with a site in United States — 11 open to participants now, 13 under way, none of them phase 3. Carpal Tunnel Syndrome · United States.

Enrollment
27th of 72
88 · median 50
Started
2018
with 8 others
No phase
47 of 97
8 open now
Registered
53rd of 97
by date

Among the 97 studies in Carpal Tunnel Syndrome with a site in United States, this one is the 27th largest by enrollment of the 72 interventional ones that give a count, is one of 9 that started in 2018, is one of 47 with no phase, and was the 53rd registered.

Carpal Tunnel Syndrome

587 studies on the registry are indexed under Carpal Tunnel Syndrome; 134 are open to participants now.

Browse Carpal Tunnel Syndrome studies →

Open to participants now

11 of the 97 studies in Carpal Tunnel Syndrome with a site in United States are open now. Recruiting first, the newest first:

6 more — sign in →

All 11 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 74 Carpal Tunnel Syndrome studies recruiting now, 27 (36%) set no upper age limit and 38 (51%) stop at 75 or younger; 1 take children under 18; 10 take healthy volunteers.

This study: 21 Years to 65 Years · all sexes · no healthy volunteers.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 97 studies in Carpal Tunnel Syndrome with a site in United States, or all of them as a file.
02

Study summary

Sham-controlled, multi-center and remote patient-centered randomized controlled clinical trial to investigate the efficacy of a novel non-invasive, unobtrusive study device in reducing symptoms of carpal tunnel syndrome (CTS). Daily wear of the study device is expected to significantly reduce symptom severity (evaluated by the Boston Carpal Tunnel Questionnaire) in mild to severe CTS-diagnosed patients. Subjects are randomized into the active device group or sham group for 8 weeks, then followed for 12 weeks post-treatment.

Read the detailed description

It is hypothesized that daily wear of the study device will result in significant improvements in patient-reported symptom severity. It is also hypothesized that the effects from active study device treatment will be significantly greater than effects from sham treatment. In both cases, it is hypothesized that improvements will be sustained post-treatment.

This study is designed as a randomized, double-blind, sham-controlled, two-arm trial consisting of an eight-week treatment period (active study device or sham), followed by one required follow-up four weeks later (at week 12).

There are two study groups: the active device group receiving the active study device and the sham group receiving a non-active sham device. Subjects will be informed that they have a 50:50 chance of receiving treatment or a sham. They will also be informed that if they receive sham device, they will be offered the active device 4 weeks into the post-treatment period. However, all subjects will not know what treatment they are on until the conclusion of the trial.

03

Conditions studied

  • Carpal Tunnel Syndrome

Keywords

  • carpal tunnel syndrome
  • carpal tunnel
  • CTS
  • musculoskeletal disorder
  • peripheral neuropathy
  • repetitive stress injury
  • non-invasive device
  • non-significant risk
  • medical device
  • wrist pain
04

Who can participate

Ages eligible
21 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Clinically diagnosed with mild to severe carpal tunnel syndrome (CTS)
  2. CTS diagnosis confirmed by a nerve conduction study (NCS) performed within the past 24 months OR at enrollment/baseline visit

    1. CTS severity determined via AANEM criteria 13
    2. Bilateral CTS accepted (worse wrist via NCS and/or BCTQ is designated as the study wrist)
  3. BCTQ SSS > 2
  4. Reliable access to and ability to use Internet, Wi-Fi, or mobile data through computers, mobile devices, laptops, and/or tablets
  5. Willing to abstain from any other treatment or therapies for CTS throughout the study
  6. Ability to read and write English, or has a reliable person to assist with reading and writing English

Exclusion criteria

Exclusion Criteria:

  1. Other upper extremity neuropathies (e.g., epicondylitis, radial nerve neuropathies, ulnar nerve neuropathies)
  2. Double crush syndrome
  3. Cervical stenosis
  4. Brachial plexopathy
  5. Wrist fractures or cysts
  6. Prior wrist surgeries, especially carpal tunnel release surgery
  7. Injection of /cortisone into the wrist or hand within the past 6 months
  8. Thyroid disease
  9. Rheumatoid arthritis
  10. Diabetes
  11. Systemic diseases
  12. Connective tissue diseases
  13. Fibromyalgia or chronic pain syndrome
  14. Diabetic neuropathy
  15. > 40
  16. Participation in other research studies or clinical trials currently or within the past 2 weeks.

To assess eligibility, visit: carpaltunneltrial.com

Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
88 participants (actual)

Study arms

  • Experimental
    Study Device

    Small, non-invasive, stiff patch for the wrist

    Device: Study Device

  • Sham comparator
    Sham Device

    Device that looks like the Study Device but modified to prevent or remove the main mechanism of action.

    Device: Sham Device

Interventions

  • DeviceStudy Device

    Real study device applied to affected wrist (or higher CTS severity wrist if patient has bilateral CTS) for 8-10 hours daily for 56 days (8 weeks).

  • DeviceSham Device

    Sham device applied to affected wrist (or higher CTS severity wrist if patient has bilateral CTS) for 8-10 hours daily for 56 days (8 weeks). \*Note: participants in the sham group are given the real study device at the end of the Post-Treatment/Follow-up Phase.

06

What researchers measure

Primary outcomes

  1. BCTQ SSS at 8 Weeks vs Baseline

    The Symptom Severity Scale (SSS) of the Boston Carpal Tunnel Questionnaire (BCTQ) is an 11-question patient-administered survey that rates the severity of the patient's carpal tunnel syndrome-specific symptoms on a scale of 1 (no symptoms) to 5 (worst symptoms).

    Time frame: baseline and 8 weeks post-Baseline

Secondary outcomes

  1. BCTQ SSS

    The Symptom Severity Scale (SSS) of the Boston Carpal Tunnel Questionnaire (BCTQ) is an 11-question patient-administered survey that rates the severity of the patient's carpal tunnel syndrome-specific symptoms on a scale of 1 (no symptoms) to 5 (worst symptoms).

    Time frame: 8-weeks post-Baseline and 12 weeks post-Baseline

07

Results

Posted Jul 14, 2020
Limitations and caveats
Sham device was not thoroughly tested before the trial. Post-trial testing suggest some mechanical effect that could have influenced the sham group response. Early termination of enrollment reduced the power of the statistical analysis.

Participant flow

Participant flow — Overall Study
MilestoneStudy DeviceSham Device
Started4543
Completed4238
Not completed35
Withdrew: Withdrawal by subject30
Withdrew: Protocol violation04
Withdrew: Adverse event01

Outcome measures

PrimaryBCTQ SSS at 8 Weeks vs Baseline

The Symptom Severity Scale (SSS) of the Boston Carpal Tunnel Questionnaire (BCTQ) is an 11-question patient-administered survey that rates the severity of the patient's carpal tunnel syndrome-specific symptoms on a scale of 1 (no symptoms) to 5 (worst symptoms).

Time frame:
baseline and 8 weeks post-Baseline
Reported as:
Mean · score on a scale
BCTQ SSS at 8 Weeks vs Baseline
score on a scaleStudy DeviceSham Device
Average SSS2.16 ± .652.32 ± .70
Average Change in SSS-0.62 ± 0.69-0.64 ± 0.62
SecondaryBCTQ SSS

The Symptom Severity Scale (SSS) of the Boston Carpal Tunnel Questionnaire (BCTQ) is an 11-question patient-administered survey that rates the severity of the patient's carpal tunnel syndrome-specific symptoms on a scale of 1 (no symptoms) to 5 (worst symptoms).

Time frame:
8-weeks post-Baseline and 12 weeks post-Baseline
Reported as:
Mean · score on a scale
BCTQ SSS
score on a scaleStudy DeviceSham Device
Average SSS @12 weeks2.24 ± .702.44 ± .68
Average Change in SSS between 12 and 8 weeks0.08 ± 0.480.12 ± 0.40

Adverse events

Collected over Patient participation duration: 5-6 months. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Study Device0/42 (0%)0/42 (0%)2/42 (4.8%)
Sham Device0/38 (0%)0/38 (0%)2/38 (5.3%)
Most frequent other events
Most frequent other events
EventStudy DeviceSham Device
Rash, redness, or sore under study deviceInjury, poisoning and procedural complications2/422/38

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Study DeviceSham DeviceTotal
<=18 years000
Between 18 and 65 years423779
>=65 years011
Age, Continuous
Age, Continuous(years)Study DeviceSham DeviceTotal
Mean48.6 ± 11.748.6 ± 9.948.6 ± 10.8
Sex/Gender, Customized
Sex/Gender, Customized(Participants)Study DeviceSham DeviceTotal
Female342761
Male81018
Decline to Answer011
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Study DeviceSham DeviceTotal
Hispanic or Latino7310
Not Hispanic or Latino252247
Unknown or Not Reported101323
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Study DeviceSham DeviceTotal
American Indian or Alaska Native011
Asian213
Native Hawaiian or Other Pacific Islander000
Black or African American224
White323062
More than one race314
Unknown or Not Reported336
Boston Carpal Tunnel Questionnaire (BCTQ) Symptom Severity Score (SSS)
Boston Carpal Tunnel Questionnaire (BCTQ) Symptom Severity Score (SSS)(units on a 1-5 Likert scale)Study DeviceSham DeviceTotal
Mean2.78 ± .582.96 ± .422.87 ± .52
BCTQ Functional Severity Score (FSS)
BCTQ Functional Severity Score (FSS)(units on a 1-5 Likert scale)Study DeviceSham DeviceTotal
Mean2.21 ± .722.39 ± .702.30 ± .71
08

Study locations

3 sites
  • Mission Pain & Spine
    Mission Viejo, California 92691, United States
  • South Bay Medical Center
    Torrance, California 90710, United States
  • Cleveland Clinic (Lerner Research Institute)
    Cleveland, Ohio 44195, United States
09

References and documents

Publications

  • Leite JC, Jerosch-Herold C, Song F. A systematic review of the psychometric properties of the Boston Carpal Tunnel Questionnaire. BMC Musculoskelet Disord. 2006 Oct 20;7:78. doi: 10.1186/1471-2474-7-78. PubMed 17054773 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2018 to primary completion in Feb 2020, 16 months.

Results were first posted in Jul 2020, 4 months after primary completion.

Of 261 interventional studies with no phase under Carpal Tunnel Syndrome, half reached primary completion within 12 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 26. This study's 16 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 8, 2018
First posted
Apr 13, 2018
StartActual
Oct 10, 2018
Primary completionActual
Feb 28, 2020
CompletionActual
Apr 21, 2020
Results first posted
Jul 14, 2020
Last update
Jul 14, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 14, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03498287
Lead sponsor
Pressure Profile Systems, Inc.
Collaborators
The Cleveland Clinic, Mission Pain and Spine, Kaiser Permanente
Responsible party
Sponsor
First posted
Apr 13, 2018
Start date
Oct 10, 2018
Primary completion
Feb 28, 2020
Completion
Apr 21, 2020
Results posted
Jul 14, 2020
Last update
Jul 14, 2020

Study contacts

Jae Son, PhD
study director · Pressure Profile Systems

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jun 2020. You cannot join it, but the record below documents what was studied.

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