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Lentigo SolarNCT05793619

Tolerance and Performance (Mode of Administration) of Cyto-selective Difluoroethane-based Cryotherapy in the Treatment of Brown Spots

A study testing Prototypes (816-v1 301) to (816-v1 355) every week and Prototypes (816-v1 301) to (816-v1 355) every two weeks in people with Lentigo Solar and Senile Lentigo, run by Cryonove Pharma at 1 site in Georgia.

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

CS5_8 study aim to evaluate the tolerance and to adjust the mode of administration of 2 different conditions of cryotherapy treatments applied on the brown spots of the face with 1 prototype (816-v1). Each treatment corresponds to a specific frequency of cryogenic spray application. Read more about this study

Who is it for?
Ages 30 to 75 years
Conditions the study is for
Lentigo Solar, Senile Lentigo
What is being tested?
Prototypes (816-v1 301) to (816-v1 355) every week and Prototypes (816-v1 301) to (816-v1 355) every two weeks
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteGeorgia
Study dates
4 Apr 2023to 26 Oct 2023
Phase
Interventional
Are there results?
None posted in the registry

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 30 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Female or male.
  • Ages 30 to 75.
  • Phototypes I to IV (according with Fitzpatrick scale)
  • Featuring brown spots (solar lentigos, senile lentigo) on the face ≥ 3 and ≤ 6 mm in diameter (at least 1 spots per subject)
  • Agreeing not to be exposed to the sun (or artificial UV) during the study.
  • Informed, having undergone a general clinical examination attesting to his/her ability to participate in the study.
  • Having given written consent for their participation in the study.
  • No suspicion of carcinoma after investigation by a dermatologist.

Who cannot join

  • Having performed cosmetic treatments (exfoliants, scrubs or self-tanners, facials, UV ...) in the month before the start of the study, at the level of the face.
  • Having applied a depraving product in the month prior to the start of the study, at the level of the face.
  • Having performed cosmetic treatments in a dermatologist (laser, Intense Pulse Light, peeling, creams, cryotherapy ...), at the level of the face in the last 6 months.
  • With dermatosis, autoimmune disease, systemic, chronic or acute disease, or any other pathology that may interfere with treatment or influence the results of the study (people with diabetes or circulatory problems, allergic to cold, Raynaud's syndrome...).
  • Receiving treatment by general or local (dermo corticoids, corticosteroids, diuretics ...) likely to interfere with the evaluation of the parameter studied.
  • Participating in another study or being excluded from a previous study.
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  • Unable to follow the requirements of the protocol.
  • Vulnerable: whose ability or freedom to give or refuse consent is limited.
  • Major protected by law (tutorship, curatorship, safeguarding justice...).
  • People unable to read and write Georgian language.
  • Unable to be contacted urgently over the phone.
  • For female subjects:
  • Pregnant woman (or wishing to be pregnant during study) or while breastfeeding.
  • A woman who does not have a contraceptive method.

Trial locations and contacts

1 site in 1 country.

Georgia1 site
  • Ltd "Health"

    Batumi

Other trials in Georgia

About this study

Official title: Evaluation of the Tolerance and Performance (Mode of Administration) of Cyto-selective Difluoroethane-based Cryotherapy in the Treatment of Brown Spots

CS5_8 study aim to evaluate the tolerance and to adjust the mode of administration of 2 different conditions of cryotherapy treatments applied on the brown spots of the face with 1 prototype (816-v1). Each treatment corresponds to a specific frequency of cryogenic spray application.

The study will evaluate the following prototype :

  • Prototypes from (816-v1 301) to (816-v1 355)
Read the detailed description

Rational :

Solar/senile lentigo is a harmless patch of darkened skin. It results from exposure to ultraviolet (UV) radiation, which causes local proliferation of melanocytes and accumulation of melanin within the skin cells (keratinocytes). Solar/senile lentigos or lentigines are very common, especially in people over the age of 40 years.

Solar/senile lentigines are found as groups of similar lesions on sun-exposed sites, particularly the face or the back of hands.

Cryotherapy is more and more used to improve skin appearance and currently used to treat lentigo spot. However, the cryogenic gas (conventional cryotherapy - liquid nitrogen) creates a dermabrasion of the skin surface and person receiving this kind of treatment presents an impaired skin during a few days following the treatment as temporary damage of stratum corneum, erythema, scars, burns.

Following the side effects occurring after conventional cryotherapy application, the Sponsor has developed some devices using difluoroethane, manufactured by CRYONOVE PHARMA, already available on the local and international markets, e.g. CRYOBEAUTY MAINS and CRYOBEAUTY CORPS.

To continue it research and development activities, the sponsor selected other sequences of a cryogenic spray (1 prototype of devices for face used according to different frequencies of application, i.e. 2 conditions evaluated) which could be used for lentigo treatment with a same benefit for the consumers without any safety outcomes.

Design:

The study performed is a proof of performance designed to be exploratory, interventional study, monocentric, randomized and double blinded.

Intervention :

1 prototype of devices are evaluated in 2 different conditions. Each treatment corresponds to a specific frequency of cryogenic spray application. A total of 42 brown spots are needed (at least 1 brown spot on the face).The 42 brown spots will be randomized between the 2 conditions and will be attributed to subjects according to the number of spots identified by Investigator.

Prototypes (816-v1 301) to (816-v1 355) will be applied on brown pots located on the face. Each spot will be treated six times by a defined prototype (always the same device on the same spot all along the study) according to specific frequencies (every week or every two weeks).

Prior to any study device application, the dermatologist will assess the adverse events and will decide if the period between two consecutive applications should be extended or not.The dermatologist will verify that the skin has not been treated by cosmetic products (no presence of cream that could interfere with the treatment) and is dry.

As the study will use prototypes, before each treatment, the prototype will be administered to any surface (in order to purge eventually the presence of air). An operator previously trained by the dermatologist will apply the study device to the patient's face.

Subjects will be lying down, and the device will be administered upside down. During applications on the face, subjects will wear diving goggles protecting the eyes from cryogenic gas.

The patient follow-up visits are from Day 0 to 6 months.

Being tested
Prototypes (816-v1 301) to (816-v1 355) every week, Prototypes (816-v1 301) to (816-v1 355) every two weeks
Keywords
cryotherapy, hyperpigmentation, Skin Diseases
Medical subject headings
Hyperpigmentation, Skin Diseases

What participants receive

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

  • Prototypes (816-v1 301) to (816-v1 355) every weekDevice

    Application on brown spots located on the face (6 treatments during the study). An operator previously trained by the dermatologist will apply the study device to the patient's face. Subjects will be lying down, and the prototypes will be administered upside down. During applications, subjects will wear diving goggles protecting the eyes from cryogenic gas.

  • Prototypes (816-v1 301) to (816-v1 355) every two weeksDevice

    Application on brown spots located on the face (6 treatments during the study). An operator previously trained by the dermatologist will apply the study device to the patient's face. Subjects will be lying down, and the prototypes will be administered upside down. During applications, subjects will wear diving goggles protecting the eyes from cryogenic gas.

Study groups in NCT05793619
Study groupRoleWhat they receive
Condition 1 : prototypes (816-v1 301) to (816-v1 355) every weekExperimentalApplication on the brown spots of the face for the prototypes (816-v1 301) to (816-v1 355) at D0, D7, D14, D21, D28 and D35
Receives: Device: Prototypes (816-v1 301) to (816-v1 355) every week
Condition 2 : prototypes (816-v1 301) to (816-v1 355) every two weeksExperimentalApplication on the brown spots of the face for the prototypes (816-v1 301) to (816-v1 355) at D0, D14, D28, D42, D56 and D70
Receives: Device: Prototypes (816-v1 301) to (816-v1 355) every two weeks

What is being measured

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

  1. Change from baseline skin hyperpigmentation

    The evaluation will be performed visually on the selected spots.

    A scale in 6 points (0 to 5) will be used :

    0=Clear of hyperpigmentation;

    1. Almost clear of hyperpigmentation;
    2. mild, but noticeable hyperpigmentation;
    3. moderate hyperpigmentation (medium brown in quality);
    4. severe hyperpigmentation (dark brown in quality);
    5. very severe hyperpigmentation (very dark brown, almost black in quality).

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 56, Day 70, Day 84 and Day 0 + 6 months

  2. Change from baseline skin hypopigmentation

    The evaluation will be performed visually on the selected spots.

    A scale in 5 points will be used (0 to 4):

    0=no hypopigmented lesion;

    1. very slight area of hypopigmentation of very small size and very slightly fairer than the surrounding skin;
    2. slight area of hypopigmentation of small size and slightly fairer than the surrounding skin;
    3. moderate : area of hypopigmentation of moderate size and much fairer than the surrounding skin;
    4. severe : area of hypopigmentation of large size and much fairer than the surrounding skin.

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 56, Day 70, Day 84 and Day 0 + 6 months

  3. Change from baseline skin appearance

    The evaluation will be performed visually on the selected spots and surrounded spotless skin area around the spot skin to assess erythema, oedema blister, bubble, scars, micro-bruise, hematoma, dryness,desquamation, fissures/cracks, roughness,crust, pink spots and papules.

    A scale in 5 points (0 to 4) will be used :

    0=none;

    1. very mild;
    2. mild;
    3. moderate;
    4. severe.

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 56, Day 70, Day 84 and Day 0 + 6 months

  4. Change from baseline skin sensation

    The evaluation will be performed visually on the selected spots and around the spot skin to assess tightness, stinging, itching, warm and burning sensation.

    A scale in 5 points (0 to 4) will be used :

    0=none;

    1. very mild;
    2. mild;
    3. moderate;
    4. severe.

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 49, Day 56, Day 70,Day 84 and Day 0 + 6 months

  5. Self-assesment of pain by VAS

    The pain of the treatment will be assessed by the Visual Analogue Scale (VAS) at time T0 on the treated area.

    The pain assessed is that felt during the application of the devices. It will be collected from the patient within 5 minutes of application.

    The VAS is made up of a 10-centimeter line anchored by two ends of the pain. 10 is the first end being the "maximum pain imaginable" and 0 is the other end being "no pain".

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 49, Day 56, Day 70,Day 84 and Day 0 + 6 months

  6. Change from baseline spots visibility

    Standardized photographs will be taken using a Dermatoscope C-Cube® (PIXIENCE) which allows realizing high resolution skin pictures. The capture will be taken on the previously selected lentigo and a spotless area.

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 49, Day 56, Day 70,Day 84 and Day 0 + 6 months

  7. Change from baseline spots color

    L'OREAL Color-Chart is a visual mode of evaluation chart which includes 4 items :

    • Color of lentigo spot
    • Lightness of lentigo spot
    • Color of spotless area
    • Lightness of spotless area

    The items color of lentigo spot and color of spotless area are using a scale redder to yellower in 7 points (G to M).

    The items lightness of lentigo spot and lightness of spotless are using a scale lighter to darker in 15 points (5 to 19)

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 49, Day 56, Day 70,Day 84 and Day 0 + 6 months

  8. Change from baseline lentigines global improvement scale (LGIS) score

    Lentigines Global Improvement Scale (LGIS) score will be used to assess the spots visibility

    This is a 7-point scale :

    • Completely clear - 0 - : No evidence of hyperpigmentation 100% improvement
    • Almost clear - 1 - : Very significant clearance (about 90%); only minor evidence of hyperpigmentation remains
    • Marked improvement - 2 - : Significant improvement (about 75%); score evidence of hyperpigmentation remains
    • Moderate improvement - 3 - : intermediate between marked and slight improvement; about 50% improvement in the appearance of hyperpigmentation
    • Slight improvement - 4 - : some improvement (about 25%); however significant evidence of hyperpigmentation remains
    • No change - 5 - : Hyperpigmentation has not changed since baseline
    • Worse - 6 - : Worse (hyperpigmentation is worse that at baseline)

    Measured: Day 49 and Day 84

Secondary outcomes (1)
  1. Self assessment of skin appearance

    The skin appearance will be assessed by subjects through a 3 items questionnaire.

    It allows obtaining the subjective appraisal of subject on the treatments using the following 5-point scale:

    • agree,
    • quite agree
    • neither agree, nor disagree
    • quite disagree
    • disagree.

    The items are the following:

    • The spot seems clearer.
    • The size of the spot seems reduced.
    • The spot seems less visible.

    Measured: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 49, Day 56, Day 70,Day 84 and Day 0 + 6 months

Timeline

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

  1. First posted31 Mar 2023
  2. Study start4 Apr 2023
  3. Primary completion26 Oct 2023
  4. Study completion26 Oct 2023

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
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05793619
Sponsor's protocol ID
CS5_8
Status last verified
Jun 2023
First submitted
20 Mar 2023
Last updated
3 Nov 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Prototypes (816-v1 301) to (816-v1 355) every week and Prototypes (816-v1 301) to (816-v1 355) every two weeks in people with Lentigo Solar and Senile Lentigo, run by Cryonove Pharma at 1 site in Georgia.

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 8 inclusion and 14 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 3 Nov 2023. 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 Georgia. 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?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Change from baseline skin hyperpigmentation (time frame: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 56, Day 70, Day 84 and Day 0 + 6 months). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 3 Nov 2023.

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