CClinicalTrials.gg
CompletedNCT01663519Updated Jul 29, 2019

Effectiveness of Insoles Provided to Patients With Diabetes. A Longitudinal Randomized Controlled Study in Gothenburg

An interventional study of Custom made insoles 35 shore and Prefabricated insoles in Diabetic Foot, Neuropathy and Quality of Life, sponsored by Sahlgrenska University Hospital. Completed at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-07-29.

Sponsored by Sahlgrenska University Hospital · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
114
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Introduction: Insoles and shoes are frequently prescribed to prevent foot ulcers in patients at risk of diabetes. A combination of neuropathy and foot deformities raises the risk from 1% to between 4-7% according to the Swedish National Board of Health and Welfare, Guidelines Diabetes Care 2010. Preventative care, which includes foot care, annual inspection of the feet, education and prescription of insoles in combination with well fitting shoes are supposed to decrease the risk of ulcers and prevent amputation. Further research is, however, needed to evaluate the effectiveness of these commonly prescribed insoles. The aim of this study is to compare three different types of insoles with respect to pressure distribution. Every 6 months follow-up is assessed until 24 months is reached.

Read the detailed description

Patients included in the study were randomized into 3 different groups. Group number 1 and 2 got custom made insoles out of EVA (Ethyl Vinyl Acetate) with different hardness 35 and 55 shore respectively. Group nr 3 got prefabricated insole with support of the medial arch and in the forefoot. The top layer was covered with a 2 mm cushioned material, 25 shore, made out of microcellular urethane. All patients were recommended to wear good walking shoes with a semi rigid outer sole and stable heel counter. One and the same technician made the casting and fabricated the insoles as well as delivered the devices. Deliverance occured 2-3 weeks after the first visit.

At deliverance base line measurement was assessed.

02

Conditions studied

  • Diabetic Foot
  • Neuropathy
  • Quality of Life

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Keywords

  • Diabetic foot
  • Offloading
  • Prevention
  • Orthotics
03

In context

Diabetic Foot

1,054 studies on the registry are indexed under Diabetic Foot; 222 are open to participants now.

This study's enrollment of 114 is above the median of 60 across 826 interventional studies indexed under Diabetic Foot.

Browse Diabetic Foot studies →

Lead sponsor

Sahlgrenska University Hospital is the lead sponsor of 259 studies on the registry; 68 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • First time visitor to Dept of Prosthetics \& Orthotics
  • Diabetes
  • Age > 18 year
  • Be able to walk independently
  • Be able to read and understand Swedish

Exclusion criteria

Exclusion Criteria:

  • Ulcers
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
114 participants (actual)

Study arms

  • Experimental
    Prefabricated insoles

    Prefabricated insoles with support in medial arch and metatarsal pad. A 2 mm top layer of cushioned material.

    Other: Prefabricated insoles

  • Experimental
    Custom made insoles 35 shore

    Custom made insoles formed over an individual cast positive. 35 shore of hardness in material Ethyl Vinyl Acetate

    Other: Custom made insoles 35 shore

  • Experimental
    55 shore Custom made insoles

    Custom made insoles formed over an individual cast positive. 55 shore of hardness in material Ethyl Vinyl Acetate

    Other: 55 shore Custom made insole

Interventions

  • OtherCustom made insoles 35 shore

    Insoles in Ethyl Vinyl Acetate (EVA) manufactured over an individual positive cast.

  • OtherPrefabricated insoles

    Prefabricated insoles

    Also known as: Bauerfeind GloboTec® 312750501400

  • Other55 shore Custom made insole

    Insoles in Ethyl Vinyl Acetate (EVA) manufactured over an individual positive cast.

06

What researchers measure

Primary outcomes

  1. In shoe plantar pressure measurement

    Time frame: up to 24 months

Secondary outcomes

  1. Gait analysis

    Optical tracking system with skin-mounted markers

    Time frame: every 6 months until 24 months is reached

Other outcomes

  1. Health related quality of life

    Time frame: every 6 months until 24 months is reached

  2. Cost and cost analysis

    Calculation of costs for orthopaedic appliance in studied population

    Time frame: 24 month

07

Study locations

1 site
  • Lundbergs Laboratory for Orthopaedic Research
    Gothenburg, 413 45, Sweden
08

References and documents

Publications

  • Hellstrand Tang U, Zugner R, Lisovskaja V, Karlsson J, Hagberg K, Tranberg R. Comparison of plantar pressure in three types of insole given to patients with diabetes at risk of developing foot ulcers - A two-year, randomized trial. J Clin Transl Endocrinol. 2014 Jul 24;1(4):121-132. doi: 10.1016/j.jcte.2014.06.002. eCollection 2014 Dec. PubMed 29159093 ↗
  • Tang UH, Zugner R, Lisovskaja V, Karlsson J, Hagberg K, Tranberg R. Foot deformities, function in the lower extremities, and plantar pressure in patients with diabetes at high risk to develop foot ulcers. Diabet Foot Ankle. 2015 Jun 17;6:27593. doi: 10.3402/dfa.v6.27593. eCollection 2015. PubMed 26087865 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 29, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01663519
Lead sponsor
Sahlgrenska University Hospital
Responsible party
Ulla Hellstrand Tang (Certified Prosthetist & Orthotist, Sahlgrenska University Hospital) — Principal investigator
First posted
Aug 13, 2012
Start date
Jan 2008
Primary completion
Feb 2012
Completion
Jul 2012
Last update
Jul 29, 2019

Study contacts

Roy Tranberg, PhD
study chair · Lundbergs laboratory for Orthopaedic Research

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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