Effect of Holofiber Socks and Bedding on Pain and Quality of Sleep in Subjects With Chronic Foot Pain

This study is designed to assess the effects of socks and bedding materials on foot pain, the level of blood oxygen existing in the feet and quality of sleep in subjects who have chronic foot pain from either diabetic neuropathy or other conditions, e.g., peripheral arterial disease, regenerative joint disease). The three main hypotheses to be tested are: 1)compared to placebo socks, subjects wearing Holofiber socks experience reduction in foot pain, 2)compared to placebo bedding, subjects sleeping in beds lined with a Holofiber mattress pad experience improved quality of sleep and 3) compared to placebo socks, subjects who wear Holofiber socks will have increased blood oxygenation levels in their feet.

Study Overview

Detailed Description

Holofiber is a patented process for adding micron sized optically active quartz, aluminum oxide and titanium oxide particles to polymer yarns. It is believed that the Holofiber particles increase skin illumination such that pigments and other enzymes are activated, leading to increased blood flow and oxygenation of the skin and neighboring soft tissues. Previous clinical trials have demonstrated approximately a 7% increase in skin oxygen levels with the use of Holofiber gloves and socks, compared to gloves and socks fabricated from identical polymer fiber lacking the optical particles. Numerous anecdotal reports from patients with chronic foot and arm pain indicate wearing Holofiber garments for even a few days leads to dramatic improvement in many different painful conditions. Similarly, many subjects with chronic sleep disturbances have reported improved quality of sleep using Holofiber bedding. The current study is designed to 1) substantiate the ability of Holofiber socks to alleviate chronic pain resulting from diabetic neuropathy and other chronic foot disorders, 2) determine if Holofiber bedding improves quality of sleep and 3) determine if Holofiber socks increase blood oxygenation levels in the feet after wear.

Subjects who give informed consent and meet the study inclusion and exclusion criterial will undergo a brief medical history and physical examination, including monofilament testing for sensory neuropathy and measurement of blood pressure in all four extremities using Doppler ultrasound, and will answer a panel of questionnaires that assess pain and sleep quality. Spouses or partners of eligible subjects will similarly be consented to fill out the questionnaires related to sleep if they share the same bed with the participating subject. Subjects and spouses/partners will be asked to return one week later to complete the same questionnaires, at which time subjects will be randomized (double-blind) to receive either Holofiber or placebo socks and bedding materials. Subjects will be instructed to use the socks and bedding material exclusively for two weeks. Subjects and spouses/partners will return at three and four weeks for follow-up with repeat questionnaires at each visit. At Visit 4, subjects will have their feet photographed using a Hyperspectral camera to identify blood oxygenation before and after wearing the Holofiber and placebo socks. Once the final set of photographs has been taken, the visit is ended and the patients participation is concluded.

Study Type

Interventional

Enrollment (Actual)

60

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • Long Beach, California, United States, 90822
        • VA Long Beach Healthcare System

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria SUBJECTS WITH DIABETIC NEUROPATHY:

  • Presence of diabetic neuropathic pain with score of 3 or higher on the McGill Short Form Pain Survey
  • Presence of sensory neuropathy with monofilament (Semmes-Weinstein) testing, as defined as failure to sense the filament in 2 locations (out of six total) on a least one foot.
  • Previous diagnosis of diabetes (type II) as well as diabetic neuropathy by a physician
  • Age greater or equal to 21

Exclusion Criteria SUBJECTS WITH DIABETIC NEUROPATHY:

  • Presence of significant peripheral arterial disease in either lower extremity (abi greater than 0.9 bilaterally)
  • Skin ulceration on either foot or limb threat from infection or vascular disease at study enrollment
  • Inability to comply with study procedures or give informed consent
  • Women of child bearing potential
  • Spouse/partner is a women of child bearing potential and you share the same bed
  • Non-ambulatory status
  • Inability to comply with study restrictions on changing sleeping or pain medication
  • Severe psychiatric or medical disorder that would affect compliance
  • Known allergy to PET or Dacron

Inclusion Criteria SUBJECTS WITHOUT DIABETIC NEUROPATHY:

  • Chronic foot or angle pain with a score of 3 or higher on the McGill Short Form Pain Scale
  • Absence of sensory neuropathy with monofilament (Semmes-Weinstein) testing, as defined as ability to sense the filament in 6 locations (out of 6 total) on both feet
  • The presence of a condition that causes chronic foot pain such as arthritis, peripheral arterial disease, plantar fasciitis, or other conditions not related to diabetic neuropathy, previously diagnosed by a health care provider
  • Age greater to or equal to 21

Exclusion Criteria SUBJECTS WITHOUT DIABETIC NEUROPATHY:

  • Presence of significant peripheral arterial disease in either lower extremity (abi less than or equal to 0.5 in either extremity)
  • Skin ulceration on either foot or limb threat from infection or vascular disease at study enrollment
  • Inability to comply with study procedures or give informed consent
  • Women of child bearing potential
  • Spouse/partner is a women of child bearing potential and you share the same bed
  • Non-ambulatory status
  • Inability to comply with study restrictions on changing sleeping or pain medication
  • Severe psychiatric or medical disorder that would affect compliance
  • Previous diagnosis of neuropathy affecting lower extremities
  • Known allergy to PET or Dacron

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Subjects will be given 3 pairs of socks (subjects with foot pain only) and bedding (mattress pad)fabricated from 1.8 dernier polyethylene terephthalate (PET) fabric to which Holofiber particles have been added during fiber manufacture.
Subjects will be given 3 pairs of socks (subjects with foot pain only) and bedding (mattress pad)fabricated from 1.8 dernier polyethylene terephthalate (PET) fabric to which Holofiber particles have been added during fiber manufacture.
Placebo Comparator: 2
Subjects will be given 3 pairs of socks (subjects with foot pain only) and bedding (mattress pad)fabricated from 1.8 dernier polyethylene terephthalate (PET) fabric.
Subjects will be given 3 pairs of socks (subjects with foot pain only) and bedding (mattress pad)fabricated from 1.8 dernier polyethylene terephthalate (PET)fabric.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Significant differences between the average scores from the two pre-randomization questionnaire sets and the two post-randomization questionnaire sets.
Time Frame: four weeks
four weeks
Oxygenation levels of blood in the feet will be compared between Holofiber and placebo socks at several time points using standard nonparametric t-test statistics.
Time Frame: Baseline photos of feet without socks; immediately afer baseline photos, Holofiber sock placed on one foot, placebo sock placed on the other foot; second photos with socks one hour later; final photos with socks four hours later
Baseline photos of feet without socks; immediately afer baseline photos, Holofiber sock placed on one foot, placebo sock placed on the other foot; second photos with socks one hour later; final photos with socks four hours later

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2007

Primary Completion (Actual)

December 1, 2009

Study Completion (Actual)

December 1, 2009

Study Registration Dates

First Submitted

April 9, 2007

First Submitted That Met QC Criteria

April 9, 2007

First Posted (Estimate)

April 11, 2007

Study Record Updates

Last Update Posted (Estimate)

June 4, 2010

Last Update Submitted That Met QC Criteria

June 2, 2010

Last Verified

June 1, 2010

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Arthritis

Clinical Trials on Holofiber fabric

Subscribe