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Static Magnetic Therapy for Carpal Tunnel Syndrome

A Double Blinded, Prospective, Randomized Trial of Static Magnetic Therapy for Carpal Tunnel Syndrome (CTS)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02609113
Acronym
ATTRACT
Enrollment
22
Registered
2015-11-20
Start date
2015-08-31
Completion date
2016-10-21
Last updated
2018-09-10

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

Conditions

Carpal Tunnel Syndrome

Keywords

Carpal Tunnel Syndrome

Brief summary

The purpose of this research study is to investigate if magnet therapy is effective as an alternative therapy for CTS.

Interventions

DEVICEStrong Magnetic Wristband
DEVICEWeaker Magnetic Wristband

Sponsors

Wake Forest University Health Sciences
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

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

Inclusion criteria

* Diagnosis of mild to moderate Carpal Tunnel Syndrome by history, clinical exam and Electromyography (EMG) study. * ≥ 18 years

Exclusion criteria

* Current use of magnets as therapy for Carpal Tunnel Syndrome * Known allergy to silicone * Unwillingness to wear wristband for 6 weeks * Patients who have devices that may be affected by exposure to magnets such as vagal nerve stimulator, pacemaker or insulin pump.

Design outcomes

Primary

MeasureTime frameDescription
Change in Boston Carpal Tunnel Questionnaire (BCTQ) Score at 6 WeeksBaseline and 6 weeksPatient reported outcome measure of symptom severity and functional status. Is made of the Symptom severity scale (11 items) score 1 to 5 where lower numbers denotes better outcomes; and the Functional status scale (8 items) score 1 to 5 where lower numbers denotes better outcomes. Total score 1- 95 where lower numbers denotes better outcomes.

Secondary

MeasureTime frameDescription
Change in Echogenicity (Hyper or Hypo) on the Median Nerve Ultrasound at 6 WeeksBaseline and 6 weeksUltrasound to assess the anatomy of the median nerve
Change in Cross-sectional Area as Measured in mm2 on Median Nerve Ultrasound at 6 WeeksBaseline and 6 weeksUltrasound to assess the anatomy of the median nerve
Change in Vascularity (Normal or Abnormal) as Measured on Median Nerve Ultrasound at 6 WeeksBaseline and 6 weeksUltrasound to assess the anatomy of the median nerve

Countries

United States

Participant flow

Participants by arm

ArmCount
Strong Magnetic Wristband
Magnetic wristband of 1,795 Gauss strength Strong Magnetic Wristband
9
Weaker Magnetic Wristband
Magnetic wristband of 5 Gauss strength. Weaker Magnetic Wristband
9
Total18

Baseline characteristics

CharacteristicStrong Magnetic WristbandWeaker Magnetic WristbandTotal
Age, Continuous46 years
STANDARD_DEVIATION 9.6
52 years
STANDARD_DEVIATION 6.12
48.7 years
STANDARD_DEVIATION 8.8
Region of Enrollment
United States
9 Participants9 Participants18 Participants
Sex: Female, Male
Female
9 Participants6 Participants15 Participants
Sex: Female, Male
Male
0 Participants3 Participants3 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 110 / 11
serious
Total, serious adverse events
0 / 110 / 11

Outcome results

Primary

Change in Boston Carpal Tunnel Questionnaire (BCTQ) Score at 6 Weeks

Patient reported outcome measure of symptom severity and functional status. Is made of the Symptom severity scale (11 items) score 1 to 5 where lower numbers denotes better outcomes; and the Functional status scale (8 items) score 1 to 5 where lower numbers denotes better outcomes. Total score 1- 95 where lower numbers denotes better outcomes.

Time frame: Baseline and 6 weeks

ArmMeasureValue (MEDIAN)Dispersion
Strong Magnetic WristbandChange in Boston Carpal Tunnel Questionnaire (BCTQ) Score at 6 Weeks48.6 units on a scaleStandard Deviation 6.6
Weaker Magnetic WristbandChange in Boston Carpal Tunnel Questionnaire (BCTQ) Score at 6 Weeks45.4 units on a scaleStandard Deviation 4.5
Secondary

Change in Cross-sectional Area as Measured in mm2 on Median Nerve Ultrasound at 6 Weeks

Ultrasound to assess the anatomy of the median nerve

Time frame: Baseline and 6 weeks

ArmMeasureValue (MEDIAN)Dispersion
Strong Magnetic WristbandChange in Cross-sectional Area as Measured in mm2 on Median Nerve Ultrasound at 6 Weeks11.6 mm^2Standard Deviation 2.8
Weaker Magnetic WristbandChange in Cross-sectional Area as Measured in mm2 on Median Nerve Ultrasound at 6 Weeks14.2 mm^2Standard Deviation 3.5
Secondary

Change in Echogenicity (Hyper or Hypo) on the Median Nerve Ultrasound at 6 Weeks

Ultrasound to assess the anatomy of the median nerve

Time frame: Baseline and 6 weeks

Population: The Median Nerve Echogenicity (% hypoechoic) was the same at 89%.

ArmMeasureValue (NUMBER)
Strong Magnetic WristbandChange in Echogenicity (Hyper or Hypo) on the Median Nerve Ultrasound at 6 Weeks89 percentage of hypoechoic
Weaker Magnetic WristbandChange in Echogenicity (Hyper or Hypo) on the Median Nerve Ultrasound at 6 Weeks89 percentage of hypoechoic
Secondary

Change in Vascularity (Normal or Abnormal) as Measured on Median Nerve Ultrasound at 6 Weeks

Ultrasound to assess the anatomy of the median nerve

Time frame: Baseline and 6 weeks

ArmMeasureValue (NUMBER)
Strong Magnetic WristbandChange in Vascularity (Normal or Abnormal) as Measured on Median Nerve Ultrasound at 6 Weeks33 percentage of Abnormal
Weaker Magnetic WristbandChange in Vascularity (Normal or Abnormal) as Measured on Median Nerve Ultrasound at 6 Weeks33 percentage of Abnormal

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026