ClinicalTrials.gg
CompletedNCT04054076Diab10Updated May 5, 2022

10 Years Follow-up Study of Plantar Pressure, Kinetics and Kinematics in a Cohort of Patients Diagnosed With Diabetes

An interventional study of Prefabricated insoles and Soft custom-made insoles in Diabetes, Diabetic Foot and Plantar Ulcer, sponsored by Sahlgrenska University Hospital. Completed at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-05-05.

Primary conditionDiabetic FootRegistry: Diabetes MellitusReclassifiedWhy we changed it
Registry
Diabetes Mellitus — the first condition term the registry derived for this study.
ClinicalTrials.gg
Diabetic Foot
Why
  1. The study's listed conditions name Diabetic Foot, a narrower term within Diabetes Mellitus.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

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

Phase
Not applicable
Study type
Interventional
Enrollment
224
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

A combination of diabetes and neuropathy can cause an altered gait, increased tissue stiffness, limited joint mobility, muscle weakness, foot deformities, thus leading to excessive plantar pressure. The presence of an increased plantar pressure and the loss of sensation is a serious risk factor in the risk of development of diabetic foot ulcers (DFU). Therefore, appropriate shoes and insoles are recommended to redistribute high peak pressure (PP) and reduce pressure time integral (PTI) . Shoe modifications and insoles, when used, is effective to prevent the recurrence of plantar ulcer.

The primary aim of the study was to: explore gait characteristics, kinetics and kinematics in a cohort of patients diagnosed with diabetes, with and without neuropathy, assigned to use different types of insoles. The second aim was to assess the relation between gait characteristics, kinetics and kinematics to high plantar PP and PTI. The third aim was to compare gait characteristics, kinetics and kinematics of patients with diabetes and healthy controls.

Read the detailed description

A combination of diabetes and neuropathy can cause an altered gait, increased tissue stiffness, limited joint mobility, muscle weakness, foot deformities, thus leading to excessive plantar pressure . The presence of an increased plantar pressure and the loss of sensation is a serious risk factor in the risk of development of diabetic foot ulcers (DFU). Therefore, appropriate shoes and insoles are recommended to redistribute high peak pressure (PP) and reduce pressure time integral (PTI). Shoe modifications and insoles, when used, is effective to prevent the recurrence of plantar ulcer.

Patients presenting with mild or absence of neuropathy have lower PP compared to those having more severe stages of neuropathy. However, these findings are not unambiguous. In a study patients walked in a standardize speed of 1.2 m/s, and it was only under the first metatarsal phalangeal joint that the group with neuropathy had higher PP compared to patients with diabetes without neuropathy. In the remaining parts of the foot sole, there was no difference. In a study comparing custom-made insoles and prefabricated insoles used in a walking shoe, a cohort of patients with no history of foot ulcers was studied and there were no differences in PP for the sub groups with and without neuropathy.

More knowledge is needed regarding risk factors such as neuropathy, gait deviation and differences in kinematics and kinetics in order to prevent the onset of the "first" plantar ulcer.

02

Conditions studied

  • Diabetes
  • Diabetic Foot
  • Plantar Ulcer
  • Neuropathy
  • Gait Disorder, Sensorimotor
  • Motor Neuropathy
  • Foot Deformities
  • Foot Ulcer

Keywords

  • orthotics
  • kinematics
  • kinetics
03

In context

Diabetic Foot Reclassified

1,077 studies on the registry are indexed under Diabetic Foot; 222 are open to participants now.

This study's enrollment of 224 is above the median of 60 across 847 interventional studies indexed under Diabetic Foot.

Browse Diabetic Foot studies →

Lead sponsor

Sahlgrenska University Hospital is the lead sponsor of 263 studies on the registry; 68 are open to participants now.

Compared within Diabetic Foot, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Diabetes Mellitus. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

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

Eligibility criteria

Inclusion Criteria:

Intervention groups:

  • To be a participant in the original RCT
  • To be aged 18 years or more
  • To walk without walking aid
  • To understand the Swedish language
  • No presence of foot ulcer

Exclusion Criteria:

  • Presence of foot ulcers

Control group

  • To be first-time visitors to the DPO
  • To be aged 18 years or more
  • To walk without walking aid
  • To understand the Swedish language
  • No presence of foot ulcer

Exclusion Criteria:

  • Presence of foot ulcers
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
224 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.

    Device: Prefabricated insoles

  • Experimental
    Custom-made insoles soft

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

    Device: Soft custom-made insoles

  • Experimental
    Custom-made hard

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

    Device: Hard custom-made insoles

  • No intervention
    Control group

    No intervention with therapeutic insoles and/or shoes.

Interventions

  • DevicePrefabricated insoles

    The participants received prefabricated insoles

  • DeviceSoft custom-made insoles

    The participants received soft custom-made insoles

  • DeviceHard custom-made insoles

    The participants received hard custom-made insoles

06

What researchers measure

Primary outcomes

  1. Peak pressure

    To compare the differences of peak pressure (kPa) in the four groups.

    Time frame: through study completion, an average of 1 year

  2. Pressure time integral

    To compare the differences of pressure time integral (kPa\*s) in the four groups.

    Time frame: through study completion, an average of 1 year

Secondary outcomes

  1. Moment at ankle-knee-and hip joint

    To compare the differences of joint moment (Nm/kg) in the four groups.

    Time frame: through study completion, an average of 1 year

  2. Speed

    To compare the differences of speed (m/s) in the four groups.

    Time frame: through study completion, an average of 1 year

  3. Cadence

    To compare the differences of cadence (step/min) in the four groups.

    Time frame: through study completion, an average of 1 year

  4. Stance (percent of stand phase)

    To compare the differences of stance phase (%) in the four groups.

    Time frame: through study completion, an average of 1 year

  5. Range of foot-knee and hip angles (minimum to maximum)

    To compare the differences of maximum angle (degree) in the four groups

    Time frame: through study completion, an average of 1 year

  6. Walking distance of 5 minutes walking

    To compare the differences of 5 minutes walking(m) distance in the four groups

    Time frame: through study completion, an average of 1 year

  7. Distribution of risk grade ( the risk to develop diabetic foot ulcers 1-4(1=no risk, 4=presence of foot ulcers)

    To assess the distribution of risk grade (1-4) in the four groups

    Time frame: through study completion, an average of 1 year

  8. Relation of different types of insoles and risk factors to peak pressure

    To assess the influence of different types of insoles and risk factors on high peak pressure (kPa)

    Time frame: through study completion, an average of 1 year

  9. Relation of different types of insoles and risk factors to pressure time integral

    To assess the influence of different types of insoles and risk factors on pressure time integral (kPa\*s)

    Time frame: through study completion, an average of 1 year

Other outcomes

  1. Health related quality of life

    To assess the quality of life (SF-36 and EQ-5D-5L) in the different groups

    Time frame: through study completion, an average of 1 year

  2. Costs for the assistive devices

    Calculation of costs (SEK and USD) for the assistive devices

    Time frame: through study completion, an average of 1 year

07

Study locations

1 site
  • Department of Prostetics & Orthotics
    Gothenburg, Region Västragötaland 41285, Sweden
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

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 Jan 2020 to primary completion in Jan 2021, 12 months.

Of 240 non-industry interventional studies with no phase under Diabetic Foot, half reached primary completion within 21 months of starting (the median), counting those still running; a quarter within 7 and three quarters within 37. This study's 12 months is below that.

Counting every sponsor, half of 343 studies reached it within 22 months; a quarter within 9 and three quarters within 39.

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

Registered
Jul 25, 2019
First posted
Aug 13, 2019
StartActual
Jan 1, 2020
Primary completionActual
Jan 31, 2021
CompletionActual
Dec 31, 2021
Last update
May 5, 2022
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 May 5, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04054076
Responsible party
Ulla Hellstrand Tang (Principal Investigator, Sahlgrenska University Hospital) — Principal investigator
First posted
Aug 13, 2019
Start date
Jan 1, 2020
Primary completion
Jan 31, 2021
Completion
Dec 31, 2021
Last update
May 5, 2022

Study contacts

Björn Stålgren, BSc
study director · Sahlgrenska University Hospital

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion