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AzTrials

Pressure UlcersNCT02930590

Effects of Different Support Surfaces on the Properties Skin After Loading

A study testing Alternating low pressure mattress with air loss function, Gel mattress and Basic foam in people with Pressure Ulcers, run by Charite University, Berlin, Germany at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Pressure ulcers are severe injuries and wounds causing a substantial burden on patients, caregivers, and on healthcare systems worldwide. There is common agreement, that effective pressure ulcer prevention is of crucial importance to maintain skin and tissue integrity in individuals at risk. Read more about this study

Who is it for?
Ages 60 to 80 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pressure Ulcers
What is being tested?
Alternating low pressure mattress with air loss function, Gel mattress and Basic foam
Could I receive a placebo?
No, everyone receives an active treatment
How many people
15 participants
Where
1 siteGermany
Study dates
Sep 2016to Mar 2017
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 to 80 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthy, female volunteers
  • 60 to 80 years
  • Body Mass Index between 18.5 and 29.9 kg/m2
  • Non-Smoker of at least one year
  • Absence of skin diseases or scars in the skin areas of interest
  • Ability to move independently and to maintain supine and prone positions
Show all 10Show fewer
  • Able to give written informed consent
  • No use of cosmetic products or topical applied drugs on the study areas at least 12 hours before measurement
  • Skin phototype I to III according to Fitzpatrick classification
  • Willing and able to fulfil the study requirements

Who cannot join

  • Disability to maintain in supine or prone position
  • Acute diseases
  • Acute or chronic diseases with increased or decreased body temperature (≤ 35°C or ≥ 38,5°C, measured in the ear)
  • History or establishment of Diabetes or pre-diabetes, cardiac or renal insufficiency, atopic dermatitis, psoriasis, chronic obstructive pulmonary disease (COPD)
  • Acute or chronic wounds in the skin areas of interest
  • Any skin affection which may interfere with the study assessment, e.g. tattoo, psoriasis or scar on the investigational sites
  • Participation in another clinical study 4 weeks before inclusion visit
  • Current participation in any other clinical study

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Charité-Universitätsmedizin Berlin

    Berlin, 10117

Other trials in Germany

About this study

Official title: Comparing the Effects of Three Different Support Surfaces on the Properties of Heel and Sacral Skin After Loading

Pressure ulcers are severe injuries and wounds causing a substantial burden on patients, caregivers, and on healthcare systems worldwide. There is common agreement, that effective pressure ulcer prevention is of crucial importance to maintain skin and tissue integrity in individuals at risk. Besides risk assessment and repositioning the use of special pressure ulcer preventive support surfaces are the key interventions in pressure ulcer prevention. Pressure ulcer preventive support surface modify the degree of skin and tissue deformation and/or skin temperature and moisture. Therefore, an association between the type and working mechanism of a pressure ulcer support surface and skin function after loading is highly likely. Furthermore, such a relationship may be used to characterize and/or to quantify the performance pressure ulcer support surfaces in terms of skin protection. The overall aim of this explorative study is to measure skin responses of the two most common pressure ulcer predilection sites (heel, sacral skin) after two hours loading on three different support surfaces and the sternal skin (control area).

Conditions
Pressure Ulcers
Being tested
Alternating low pressure mattress with air loss function, Gel mattress, Basic foam
Medical subject headings
Pressure Ulcer

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Alternating low pressure mattress with air loss functionOther

    IsoAir, Stryker, USA

  • Gel mattressOther

    IsoGel, Stryker, USA

  • Basic foamOther

    Standard hospital mattress

Study groups in NCT02930590
Study groupRoleWhat they receive
Low Pressure mattressExperimentalAlternating Low Pressure mattress with low air loss function (IsoAir, stryker, USA)
Receives: Other: Alternating low pressure mattress with air loss function
Reactive support surfaceExperimentalGel mattress (IsoGel, stryker, USA)
Receives: Other: Gel mattress
Standard mattressActive comparatorbasic foam
Receives: Other: Basic foam

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Transepidermal Water Loss (TEWL) in g/m2/h on Sacrum, at Baseline

    TEWL was measured using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany).

    Measured: at baseline

  2. Transepidermal Water Loss (TEWL) in g/m2/h on Sacrum, After Two Hours Loading

    TEWL was measured using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany).

    Measured: after two hours loading

  3. Transepidermal Water Loss (TEWL) in g/m2/h on Sacrum, 20 Min After Off-loading

    TEWL was measured using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany).

    Measured: 20 min after off-loading

  4. Transepidermal Water Loss (TEWL) in g/m2/h on Heel, at Baseline

    TEWL was measured using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany).

    Measured: at baseline

  5. Transepidermal Water Loss (TEWL) in g/m2/h on Heel, After Two Hours Loading

    TEWL was measured using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany).

    Measured: after two hours loading

  6. Transepidermal Water Loss (TEWL) in g/m2/h on Heel, 20 Min After Off-loading

    TEWL was measured using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany).

    Measured: 20 min after off-loading

Secondary outcomes (88)
  1. Skin Surface Temperature in °C Per Skin Area at the Sacrum, at Baseline

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: at baseline

  2. Skin Surface Temperature in °C Per Skin Area at the Sacrum, After Two Hours

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: after two hours

  3. Skin Surface Temperature in °C Per Skin Area at the Sacrum, 20 Minutes After Off-loading

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: 20 minutes after off-loading

  4. Skin Surface Temperature in °C Per Skin Area at the Heel, at Baseline

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: at baseline

  5. Skin Surface Temperature in °C Per Skin Area at the Heel, After Two Hours Loading

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: after two hours loading

  6. Skin Surface Temperature in °C Per Skin Area at the Heel, 20 Minutes After Off-loading

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: 20 minutes after off-loading

  7. Erythema Index in Arbitrary Units at the Sacrum, at Baseline

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: at baseline

  8. Erythema Index in Arbitrary Units at the Sacrum, After Two Hours Loading

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: after two hours loading

  9. Erythema Index in Arbitrary Units at the Sacrum, 20 Min After Off-loading

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: 20 min after off-loading

  10. Erythema Index in Arbitrary Units at the Heels, at Baseline

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: at baseline

  11. Erythema Index in Arbitrary Units at the Heels, After Two Hours Loading

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: after two hours loading

  12. Erythema Index in Arbitrary Units at the Heels, 20 Min After Off-loading

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: 20 min after off-loading

  13. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Sacrum, at Baseline

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU). Lower values represent reduced skin hydration in the upper skin layer.

    Measured: at baseline

  14. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Sacrum, After Two Hours Loading

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU). Lower values represent reduced skin hydration in the upper skin layer.

    Measured: after two hours loading

  15. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Sacrum, 20 Min Off-loading

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU).Lower values represent reduced skin hydration in the upper skin layer.

    Measured: 20 min after off-loading

  16. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Heels, at Baseline

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU).Lower values represent reduced skin hydration in the upper skin layer.

    Measured: Baseline

  17. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Heels, After Two Hours Loading

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU). Lower values represent reduced skin hydration in the upper skin layer.

    Measured: after two hours loading

  18. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Heels, 20min Off-loading

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU). Lower values represent reduced skin hydration in the upper skin layer.

    Measured: 20 min after off-loading

  19. Skin Surface Mean Roughness (Rz) in μm at the Sacrum, at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: Baseline

  20. Skin Surface Mean Roughness (Rz) in μm at the Sacrum, After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: after two hours loading

  21. Skin Surface Mean Roughness (Rz) in μm at the Sacrum, 20 Min After Off-loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: 20 min after off-loading

  22. Skin Surface Mean Roughness (Ra) in μm at the Sacrum, at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: Baseline

  23. Skin Surface Mean Roughness (Ra) in μm at the Sacrum, After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: after two hours loading

  24. Skin Surface Mean Roughness (Ra) in μm at the Sacrum, 20 Min Off-loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: 20 min after off-loading

  25. Skin Surface Maximum Roughness (Rmax) in µm at the Sacrum, at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: Baseline

  26. Skin Surface Maximum Roughness (Rmax) in µm at the Sacrum, After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: after two hours loading

  27. Skin Surface Maximum Roughness (Rmax) in µm at the Sacrum, 20 Min Off-loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: 20 minutes after off-loading

  28. Skin Surface Mean Roughness (Rz) in μm at the Heel, at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: Baseline

  29. Skin Surface Mean Roughness (Rz) in μm at the Heels, After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: after two hours loading

  30. Skin Surface Mean Roughness (Rz) in μm at the Heels, 20min Off-loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: 20 min after off-loading

  31. Skin Surface Mean Roughness (Ra) in μm at the Heels, at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: Baseline

  32. Skin Surface Mean Roughness (Ra) in μm at the Heels, After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: after two hours loading

  33. Skin Surface Mean Roughness (Ra) in μm at the Heels, 20 Min After Off-loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: 20 min after off-loading

  34. Skin Surface Maximum Roughness (Rmax) in µm at the Heel, After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: after two hours loading

  35. Skin Surface Maximum Roughness (Rmax) in µm at the Heel, at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: Baseline

  36. Skin Surface Maximum Roughness (Rmax) in µm at the Heel, 20 Min After Off-loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: 20 minutes after off-loading

  37. Skin Extensibility (Uf) in mm at the Sacrum, at Baseline

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted with a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the skin in mm (Uf, mm).

    Measured: Baseline

  38. Skin Extensibility (Uf) in mm at the Sacrum, After Two Hours Loading

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the skin in mm(Uf, mm).

    Measured: after two hours loading

  39. Skin Extensibility (Uf) in mm at the Sacrum, 20 Minutes After Off-loading

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the Skin in mm (Uf, mm).

    Measured: 20 minutes after off-loading

  40. Skin Extensibility (Uf) in mm at the Heel, at Baseline

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the skin in mm (Uf, mm).

    Measured: Baseline

  41. Skin Extensibility (Uf) in mm at the Heel, After Two Hours Loading

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the skin in mm (Uf, mm).

    Measured: after two hours loading

  42. Skin Extensibility (Uf) in mm at the Heel, 20 Minutes After Off-loading

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the skin in mm (Uf, mm).

    Measured: 20 minutes after off-loading

  43. Elastic Recovery (Ur/Uf) at the Sacrum, at Baseline

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: Baseline

  44. Elastic Recovery (Ur/Uf) at the Sacrum, After Two Hours Loading

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: after two hours loading

  45. Elastic Recovery (Ur/Uf) at the Sacrum, 20 Minutes After Off-loading

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: 20 minutes after off-loading

  46. Elastic Recovery (Ur/Uf) at the Heel, at Baseline

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: Baseline

  47. Elastic Recovery (Ur/Uf) at the Heel, After Two Hours Loading

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: after two hours loading

  48. Elastic Recovery (Ur/Uf) at the Heel, 20 Minutes After Off-loading

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: 20 minutes after off-loading

  49. Skin Elastic Function (Ur/Ue) at the Sacrum, at Baseline

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: Baseline

  50. Skin Elastic Function (Ur/Ue) at the Sacrum, After Two Hours Loading

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: after two hours loading

  51. Skin Elastic Function (Ur/Ue) at the Sacrum, 20 Minutes After Off-loading

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: 20 minutes after off-loading

  52. Skin Elastic Function (Ur/Ue) at the Heel, at Baseline

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: Baseline

  53. Skin Elastic Function (Ur/Ue) at the Heel, After Two Hours Loading

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: after two hours loading

  54. Skin Elastic Function (Ur/Ue) at the Heel, 20 Minutes After Off-loading

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: 20 minutes after off-loading

  55. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Sacrum, at Baseline

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: Baseline

  56. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Sacrum, After Two Hours Loading

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: after two hours loading

  57. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Sacrum, 20 Minutes After Off-loading

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: 20 minutes after off-loading

  58. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Heel, at Baseline

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: Baseline

  59. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Heel, After Two Hours Loading

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: after two hours loading

  60. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Heel, 20 Minutes After Off-loading

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: 20 minutes after off-loading

  61. Epidermal Thickness in μm (Metric) by Image Processing and Measurement at the Sacrum

    Skin thickness was measured in μm (Metric) by Image Processing using Optical Coherence Tomography, OCT (Thorlabs, Lübeck, Germany).

    Measured: Baseline

  62. Epidermal Thickness in μm (Metric) by Image Processing and Measurement at the Sacrum

    Skin thickness was measured in μm (Metric) by Image Processing using Optical Coherence Tomography, OCT (Thorlabs, Lübeck, Germany).

    Measured: after two hours loading

  63. Epidermal Thickness in μm (Metric) by Image Processing and Measurement at the Heel

    Skin thickness was measured in μm (Metric) by Image Processing using Optical Coherence Tomography, OCT (Thorlabs, Lübeck, Germany).

    Measured: baseline

  64. Epidermal Thickness in μm (Metric) by Image Processing and Measurement at the Heel

    Skin thickness was measured in μm (Metric) by Image Processing using Optical Coherence Tomography, OCT (Thorlabs, Lübeck, Germany).

    Measured: after two hours loading

  65. Epidermal Thickness in μm (Metric) by Image Processing and Measurement at the Sternum (Control- Area)

    Skin thickness was measured in μm (Metric) by Image Processing using Optical Coherence Tomography, OCT (Thorlabs, Lübeck, Germany).

    Measured: baseline

  66. Epidermal Thickness in μm (Metric) by Image Processing and Measurement at the Sternum (Control- Area)

    Skin thickness was measured in μm (Metric) by Image Processing using Optical Coherence Tomography, OCT (Thorlabs, Lübeck, Germany).

    Measured: after two hours loading

  67. Transepidermal Water Loss (TEWL) in g/m2/h on Sternum (Control- Area), at Baseline

    TEWL was measured on sternum (control- area) using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany)

    Measured: at baseline

  68. Transepidermal Water Loss (TEWL) in g/m2/h on Sternum (Control- Area), After Two Hours Loading

    TEWL was measured on sternum (control- area) using the Tewameter TM300 (Courage \& Khazaka, Cologne, Germany).

    Measured: after two hours loading

  69. Skin Surface Temperature in °C Per Skin Area at the Sternum (Control- Area), at Baseline

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: Baseline

  70. Skin Surface Temperature in °C Per Skin Area at the Sternum (Control- Area), After Two Hours Loading

    Skin thermometer based on the infrared technique (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure the skin surface temperature in °C.

    Measured: after two hours loading

  71. Erythema Index in Arbitrary Units at the Sternum (Control- Area), at Baseline

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: Baseline

  72. Erythema Index in Arbitrary Units at the Sternum (Control- Area), After Two Hours Loading

    Erythema was measured with the Mexameter® MX 18 device by using specific wavelengths (the intensity of the reflected red (λ = 660 nm) and green (λ = 568 nm) lights) to measure the absorption capacity of the skin (specifically the content of hemoglobin in the skin). Lower values represent less redness.

    Measured: after two hours loading

  73. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Sternum (Control- Area), at Baseline

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU). Lower values represent reduced skin hydration in the upper skin layer.

    Measured: Baseline

  74. Stratum Corneum Hydration (SCH) in Arbitrary Units at the Sternum (Control- Area), After Two Hours Loading

    Corneometer® CM 825 (Courage \& Khazaka electronic GmbH, Cologne, Germany) was used to measure SCH in arbitrary units (AU) (range 0-120 AU). Lower values represent reduced skin hydration in the upper skin layer.

    Measured: after two hours loading

  75. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Sternum (Control- Area), at Baseline

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: Baseline

  76. Epidermal Moisture Measurements Per Skin Area in Percentage (%) at the Sternum (Control- Area), After Two Hours Loading

    Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).

    Measured: after two hours loading

  77. Skin Surface Mean Roughness (Rz) in μm at the Sternum (Control- Area), at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: Baseline

  78. Skin Surface Mean Roughness (Rz) in μm at the Sternum (Control- Area), After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany) device. It consists of a UV light camera and measures the skin surface profiles. Rz is the arithmetic average of different segment roughness values calculated with visioscan software. The median was calculated from the Rz values from the 15 participants for each Intervention Group.

    Measured: after two hours loading

  79. Skin Surface Mean Roughness (Ra) in μm at the Sternum (Control- Area), at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: Baseline

  80. Skin Surface Mean Roughness (Ra) in μm at the Sternum (Control- Area), After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Ra is the arithmetical mean roughness calculated with visioscan software. The median was calculated from the Ra values from the 15 participants for each Intervention Group.

    Measured: after two hours loading

  81. Skin Surface Maximum Roughness (Rmax) in µm at the Sternum (Control- Area), at Baseline

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: Baseline

  82. Skin Surface Maximum Roughness (Rmax) in µm at the Sternum (Control- Area), After Two Hours Loading

    Skin roughness was measured using the Visioscan VC98 (Courage+Khazaka, Cologne, Germany). It consists of a UV light camera and measures the skin surface profiles. Rmax (Maximum roughness) is the biggest roughness of the different segment roughness values.

    Measured: after two hours loading

  83. Skin Extensibility (Uf) in mm at the Sternum (Control- Area), at Baseline

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the skin in mm (Uf, mm).

    Measured: Baseline

  84. Skin Extensibility (Uf) in mm at the Sternum (Control- Area), After Two Hours Loading

    Skin extensibility was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm diameter and expressed in terms of total extensibility of the skin in mm (Uf, mm).

    Measured: after two hours loading

  85. Skin Elastic Function (Ur/Ue) at the Sternum (Control- Area), at Baseline

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: Baseline

  86. Skin Elastic Function (Ur/Ue) at the Sternum (Control- Area), After Two Hours Loading

    The elastic function (Ur/Ue) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: after two hours loading

  87. Elastic Recovery (Ur/Uf) at the Sternum (Control- Area), at Baseline

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: Baseline

  88. Elastic Recovery (Ur/Uf) at the Sternum (Control- Area), After Two Hours Loading

    The elastic recovery (elastic recovery (Ur) / maximum extension (Uf)) of the skin was measured using the Cutometer® MPA 580 and the corresponding software (Courage \& Khazaka Electronic GmbH, Cologne, Germany).The measurements were conducted whit a pressure of -450 mBar and a probe opening of 2 mm Diameter.

    Measured: after two hours loading

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Oct 2016 (estimated)
  2. Study startSep 2016
  3. Primary completionMar 2017
  4. Study completionMar 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Supportive care
Allocation
Randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
15 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02930590
Sponsor's protocol ID
CRC-PU-A-23
Status last verified
May 2022
First submitted
26 Sep 2016
Last updated
14 Jun 2022
Data monitoring committee
No

Publications

  • Tomova-Simitchieva T, Lichterfeld-Kottner A, Blume-Peytavi U, Kottner J. Comparing the effects of 3 different pressure ulcer prevention support surfaces on the structure and function of heel and sacral skin: An exploratory cross-over trial. Int Wound J. 2018 Jun;15(3):429-437. doi: 10.1111/iwj.12883. Epub 2017 Dec 26.

    PubMed 29277963

Questions about this trial

What is this clinical trial studying?

A study testing Alternating low pressure mattress with air loss function, Gel mattress and Basic foam in people with Pressure Ulcers, run by Charite University, Berlin, Germany at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 14 Jun 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 23 Oct 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Transepidermal Water Loss (TEWL) in g/m2/h on Sacrum, at Baseline (time frame: at baseline). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02930590, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Jun 2022.

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