SKAMo-1: Characterization of the Upper Layers of Skin

Diabetes Clinical Trial

Official title:

SKAMo-1: Characterization of the Upper Layers of Skin

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT06044532
• Other study ID #: 2022-A02578-35
• Status: Completed
• Phase: N/A
• Start date: March 1, 2023
• Est. completion date: April 27, 2023

Study information

• Verified date: September 2023
• Source: Eclypia
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Diabetes is a frequent disease characterized by chronic hyperglycemia, and its prevalence is increasing worldwide. Historically, patients with diabetes were required to monitor capillary blood glucose concentration up to several times a day through fingertip sampling.

Recently marketed devices now allow measurements of interstitial fluid blood glucose continuously, thus limiting pain associated with sampling. However, they are still invasive and have to be changed every 14 days.

Therefore, to optimize continuous glycemia monitoring while avoiding pain, discomfort, and the risk of infection, non-invasive methods are needed. Among the different strategies being developed, optical wearable sensors with specific signal processing are a promising option. The sensors detecting this optical signal will be included in a device. Yet, wearing a device may slightly modify several properties of the skin, such as its humidity and thermal regulation, and subsequently have an impact on the measured optical signal. Therefore, it is important to better understand how a device affects these characteristics to include these parameters in the future device algorithms.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 14
• Est. completion date: April 27, 2023
• Est. primary completion date: April 27, 2023
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 60 Years

Eligibility

Inclusion Criteria:

• Male or female aged = 18 years and = 60 years

• Signed informed consent

• Person who is affiliated to a social security scheme or who is beneficiary of such a scheme

Exclusion Criteria:

• Body mass index (BMI) > 30 kg/m2

• Any acute or chronic disease with vascular impact

• Any cutaneous disease on sites implicated in the study (dorsum of the forearm)

• Allergy to one of the material used in the sham device and during the procedure of the study

• The persons mentioned in articles L1121-5 to L1121-8 of the public health code may not be included in this research

• Subject who would receive more than 4500 euros in compensation due to his or her participation in other research involving the human person in the 12 months preceding this study

Related Conditions & MeSH terms

• Diabetes

Intervention

Other:
• Experimental
At the first visit, effects of skin preparations (cleaning or sanding) on skin parameters and wearing a sham device will be evaluated. At the second visit the effect on skin parameters of a local heating and an OGTT will be evaluated.

Locations

Country	Name	City	State
France	CHU Grenoble Alpes	Grenoble

Sponsors (1)

Lead Sponsor	Collaborator
Eclypia

Country where clinical trial is conducted

France, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change of skin hydration on the dorsum of the forearm after two and a half hours of wearing the sham device.	Hydration is measured with a capacitance method, expressed as arbitrary units (dielectric value)	Visit 1,Day 0, before and after two and a half hours of wearing the sham device
Secondary	Change of skin elasticity after the wearing the sham device	elasticity (suction method) expressed as penetration depth in mm/time	Visit 1,Day 0, before and after two and a half hours of wearing the sham device
Secondary	Change of transepidermal water loss after the wearing the sham device	transepidermal water loss (the density gradient of the water evaporation) expressed as the evaporation rate in g/h/m2	Visit 1,Day 0, before and after two and a half hours of wearing the sham device
Secondary	Change of thickness of the stratum corneum after the wearing the sham device	thickness of the stratum corneum (LC-OCT method) expressed as mm	Visit 1,Day 0, before and after two and a half hours of wearing the sham device
Secondary	Change of skin temperature after the wearing the sham device	skin temperature (infrared thermography) expressed as Celsius,	Visit 1,Day 0, before and after two and a half hours of wearing the sham device
Secondary	Change of skin blood flux after the wearing the sham device	skin blood flux (LSCI) expressed as an arbitrary unit,	Visit 1,Day 0, before and after two and a half hours of wearing the sham device
Secondary	Change of skin hydration after skin cleaning	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin cleaning
Secondary	Change of skin elasticity after skin cleaning	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin cleaning
Secondary	Change of transepidermal water loss after skin cleaning	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin cleaning
Secondary	Change of thickness of the stratum corneum after skin cleaning	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin cleaning
Secondary	Change of skin temperature after skin cleaning	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin cleaning
Secondary	Change of skin blood flux after skin cleaning	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin cleaning
Secondary	Change of skin hydration after skin sanding	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin sanding
Secondary	Change of skin elasticity after skin sanding	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin sanding
Secondary	Change of transepidermal water loss after skin sanding	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin sanding
Secondary	Change of thickness of the stratum corneum after skin sanding	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin sanding
Secondary	Change of skin temperature after skin sanding	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin sanding
Secondary	Change of skin blood flux after skin sanding	expressed as previously described	Visit 1, Day 0, in 30 minutes, measures taken before and after skin sanding
Secondary	Change of skin hydration after local heating	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and after local heating (40 minutes local thermal heating between 33 to 43°C with probes PF457)
Secondary	Change of skin elasticity after local heating	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and after local heating (40 minutes local thermal heating between 33 to 43°C with probes PF457)
Secondary	Change of transepidermal water loss after local heating	expressed as previously described	Visit 2, Day 7 (+/-6 days) before and after local heating (40 minutes local thermal heating between 33 to 43°C with probes PF457)
Secondary	Change of thickness of the stratum corneum after local heating	expressed as previously described	Visit 2, Day 7 (+/-6 days) before and after local heating (40 minutes local thermal heating between 33 to 43°C with probes PF457)
Secondary	Change of skin temperature after local heating	expressed as previously described	Visit 2, Day 7 (+/-6 days) before and after local heating (40 minutes local thermal heating between 33 to 43°C with probes PF457)
Secondary	Change of skin blood flux after local heating	expressed as previously described	Visit 2, Day 7 (+/-6 days) before and after local heating (40 minutes local thermal heating between 33 to 43°C with probes PF457)
Secondary	Change of skin hydration induced by oral glycemia tolerance test	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and during oral glycemia tolerance test (every 15 minutes for 2 hours)
Secondary	Change of skin elasticity induced by oral glycemia tolerance test	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and during oral glycemia tolerance test (every 15 minutes for 2 hours)
Secondary	Change of transepidermal water loss induced by oral glycemia tolerance test	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and during oral glycemia tolerance test (every 15 minutes for 2 hours)
Secondary	Change of thickness of the stratum corneum induced by oral glycemia tolerance test	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and during oral glycemia tolerance test (every 15 minutes for 2 hours)
Secondary	Change of skin temperature induced by oral glycemia tolerance test	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and during oral glycemia tolerance test (every 15 minutes for 2 hours)
Secondary	Change of skin blood flux induced by oral glycemia tolerance test	expressed as previously described	Visit 2, Day 7 (+/-6 days), before and during oral glycemia tolerance test (every 15 minutes for 2 hours)