Adequate skin hydration is critical for maintaining healthy skin. Moreover, dehydration, together with reduction in cell renewal, loss of radiance, elasticity and firmness, is involved in skin aging. Injectable anti-aging products have been widely used for aesthetic improvement of the skin.
In recent years, new filler products made from High Purification Technology Polynucleotides (PN HPTTM) have been developed and are now being used in Europe. PN HPTTM has a consolidated utilization in the aesthetic field and recently, specific guidelines in their utilization have been implemented. Polynucleotides (PNs) are polymeric chains formed by purines, pyrimidines, deoxyribonucleotides, and deoxyribonucleosides that can be found in cells throughout the human body. PNs have viscoelastic properties and the capability to bind, reorganize and orientate a high concentration of water molecules, creating 3D gel that undergoes an enzymatic cleavage.
On this basis, polynucleotide-containing products act as short-time temporary fillers to produce a volumizing effect and exert a lubricant and moisturizing action, due to the high concentration of water molecules. Moreover, they maintain for a long time the moisturizing and viscoelastic effect.
A recent report which summarizes the findings and recommendations issued from the Italian Scientific Board of aesthetic physicians, supports the use of PN-HPT.
In this context, the Sponsor has developed PN30, a soft-tissue filler containing PN-HPT (at a concentration of 30 mg/ mL) as functional ingredients which help improve skin turgor and elasticity due to their moisturizing and viscoelastic properties.
PN30 is a new device with no history of marketing but based on a similar product CE marked developed and sold by the Manufacturer with less amount of PN (2%). Therefore, the aim of this pre-market, twostages, monocentric, interventional, single-arm, clinical investigation is to evaluate the safety and the performance of PN30 (RDM16) for the improvement of skin hydration. The clinical investigation is planned as an adaptative two-stages study.
The planned procedures will be the same for both stages. The primary objective/endpoint of STAGE I will be to evaluate the safety, while the primary objective/endpoint of STAGE II will be to evaluate the performance of the device.
Subject Informed consent form (ICF) signed;
Female and male Subjects aged 18-70 years;
Subjects desiring improvement of skin hydration in maximum 1 area of the face or desiring improvement of skin hydration of neck or décolleté.
Healthy skin;
Other - different - clinical conditions of the skin (i.e. rosacea, psoriasis, vitiligo, active eczema, severe scleroderma, severe acne and diagnosticated cancer with/without ongoing antitumor therapy);
Infectious or inflammatory processes near the area of intervention;
Presence of cutaneous disease on the tested area, as malformations and recurrent facial/labial herpes;
Presence of tendon, bone or muscular implants near the area of intervention;
Single group
PN30 (RDM16)
DevicePN30 is a viscoelastic, sterile gel, in a disposable prefilled syringe for intradermal infiltration.PN30 contains polynucleotides (3%). The polynucleotides contained in the device are substances of natural, fish-derived origin, highly purified.
Stage I - Skin examination (through evaluation of possible cutaneous reactions)
Stage I - Device deficiencies monitoring
A device deficiency (DD) is any inadequacy in the identity, quality, durability, reliability, safety or performance of an investigational device, including malfunction, use errors or inadequacy in information supplied by the manufacturer. This definition includes device deficiencies related to the investigational medical device. The rate of DD will be assessed and counted by the investigator at baseline (Visit 0), at Visit 1 and at Visit 2.
Stage I - Adverse events, serious adverse events and concomitant medications monitoring.
Adverse events, serious adverse events and concomitant medications will be monitored during the entire study duration. Subjects will receive a diary to record any deviation from the normal health status as well as any concomitant medication taken.
Stage II - Aesthetic evaluation of the skin through the change in Global Aesthetic Improvement Scale (GAIS) completed per each area treated by the Investigator
To evaluate the performance of PN30 for the aesthetic improvement of the skin after 10 weeks from the last treatment, the change in Global Aesthetic Improvement Scale (GAIS, rated on a 5-point scale (1= very much/extremely improved; 2= much improved; 3= improved; 4= no change; 5= worse)) from V2 to baseline (pre-treatment) will be assessed. The GAIS will be completed per each area treated by the Investigator. The pre-treatment GAIS score (at baseline/V0) will be "4" for each area treated for all subjects enrolled.
Stage I and Stage II - Aesthetic evaluation of the skin through the change in Global Aesthetic Improvement Scale (GAIS) completed per each area treated by the Investigator
To evaluate the performance of PN30 for the aesthetic improvement of the skin at each visit, the change in Global Aesthetic Improvement Scale (GAIS, rated on a 5-point scale (1= very much/extremely improved; 2= much improved; 3= improved; 4= no change; 5= worse)) will be assessed. The GAIS will be completed per each area treated by the Investigator. The pre-treatment GAIS score (at baseline/V0) will be "4" for each area treated for all subjects enrolled.
Stage I and Stage II - Evaluation the performance of PN30 on skin hydration at each visit through the MoistureMeterEpiD
The MoistureMeterEpiD (Delfin Technology, Finland) generates a high frequency (300 MHz), low power electromagnetic (EM) wave which the tissue is exposed to. The reflected EM wave is registered, and the obtained value is a dielectric constant (TDC), which is proportional to the water content of the measured tissue. The value increases with increasing water content. The dielectric constant is converted to water percentage (0-100%).
Stage I and Stage II - Evaluation the performance of PN30 on skin elasticity at each visit through the ElastiMeter
The ElastiMeter (Delfin Technology, Finland) comprises a reference plate with an indenter located at the centre. As the instrument is pressed briefly against the skin, a constant deformation to the skin surface is produced without altering the skin structure. A sensor measures the force required to produce the deformation from which the instant skin elasticity can be determined. The ElastiMeter measures skin elasticity in N/m.
Stage I and Stage II - Evaluation of the performance of PN30 on skin turgor at each visit through a 5-point Likert scale assessed by the Investigator
A 5-point Likert scale is a survey tool with five response options designed to measure the opinions, including two negative options, one neutral option, and two positive options.
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Mastelli S.r.l
Lead sponsor
1Med
Collaborator
