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Utility of CrocsRx Clog as a Diabetic House Shoe: a Pilot Study

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02228629
Recruitment Status : Unknown
Verified May 2015 by Jinsup Song, Temple University.
Recruitment status was:  Recruiting
First Posted : August 29, 2014
Last Update Posted : May 13, 2015
Information provided by (Responsible Party):
Jinsup Song, Temple University

Brief Summary:
Foot complications are a common and costly problem for subjects with diabetes. Although Medicare provides a pair of diabetic shoes yearly for subjects with diabetes, many do not wear their diabetic shoes in and around their house. Instead, subjects may wear shoes, such as flip flops or slippers, that provide little to no protection against injuries. While proper house shoe is important in the prevention of diabetic foot complications, this area has not received much attention. The purpose of this pilot study is to assess if CrocsRx Medical silver cloud clogs - a lightweight clog with protective toe box, cushioning soles, and easy to don and doff - offer reduced dynamic plantar pressure magnitude, as compared to conventional house shoes, for subjects with diabetes. A Repeated Measures ANOVA study design will be used to assess dynamic plantar pressure in 2 shod conditions for each subject with the order of shoes randomized.

Condition or disease Intervention/treatment Phase
Diabetes Device: CrocsRx Medical Silver cloud clogs Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 45 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Basic Science
Official Title: Do CrocsRx Clogs Reduce Dynamic Plantar Pressure as Compared to Conventional House Shoes in Subjects With Diabetes?
Study Start Date : October 2014
Estimated Primary Completion Date : October 2015
Estimated Study Completion Date : October 2015

Arm Intervention/treatment
Experimental: Typical house shoe
Subject's typical shoes worn in and around home
Device: CrocsRx Medical Silver cloud clogs

Primary Outcome Measures :
  1. Comparison of peak pressure sub-metatarsal 2 and hallux in usual house shoes versus the CrocsRx clogs [ Time Frame: At visit 1. ]
    In-shoe plantar pressures will be measured using novel pedar-X system on subjects with diabetes while walking in 2 shod conditions: (1) their usual house shoe and (2) the CrocsRx clogs.

Information from the National Library of Medicine

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Ages Eligible for Study:   21 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Male or female between the ages of 21 and 75 (inclusive)
  • Documented type 1 or type 2 diabetes mellitus
  • Demonstrated abnormal foot biomechanics by the presence of intractable plantar keratoma (IPK) beneath metatarsal heads or hallux
  • Participants with and without signs of peripheral neuropathy (unable to perceive a 10 gram monofilament or vibration perception threshold (VPT > 25 Volts)
  • Able to walk independently without the use of walking aids (cane, crutches, or walker)
  • Able to speak and understand English
  • Able to understand the information in the consent form and willing and able to sign the consent form

Exclusion Criteria:

  • History of lower limb amputations (excluding toe amputations)
  • Presence of cutaneous ulceration in the lower extremity
  • History of or active Charcot neuroarthropathy of either foot
  • Severe peripheral vascular disease (i.e. ischemic rest pain, 2-block claudication, or gangrene)
  • End stage kidney disease requiring hemodialysis, stroke, or widespread malignant disease
  • Pregnant or nursing
  • Not willing or able to make the required follow-up visits
  • Insufficient (corrected) vision to complete the questionnaire
  • Unable to fit into available shoe sizes

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02228629

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Contact: Jinsup Song 215-625-5369

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United States, Pennsylvania
Gait Study Center at the Temple University School of Podiatric Medicine Recruiting
Philadelphia, Pennsylvania, United States, 19107
Contact: Jinsup Song, D.P.M., Ph.D.    215-625-5369   
Principal Investigator: Jinsup Song, D.P.M., Ph.D.         
Sponsors and Collaborators
Temple University
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Responsible Party: Jinsup Song, Director, Gait Study Center, Temple University Identifier: NCT02228629    
Other Study ID Numbers: 21391
First Posted: August 29, 2014    Key Record Dates
Last Update Posted: May 13, 2015
Last Verified: May 2015
Keywords provided by Jinsup Song, Temple University:
Foot complications
plantar keratoma
plantar pressure
Additional relevant MeSH terms:
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Diabetes Mellitus
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases