An interventional study of Prototypes (816-v1 001) to (816-v1 050) and Prototype (816-v1 051) to (816-v1 100) in Solar Lentigo, Senile Lentigo and Post-inflammatory Hyperpigmentation, sponsored by Cryonove Pharma. Completed at 1 site in South Africa. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2024-01-19.
Sponsored by Cryonove Pharma · Not applicable, Interventional, and Treatment
CS5_3 aims to evaluate the tolerance and to adjust the mode of administration of 4 different conditions of cryotherapy treatments applied on the brown spots of the face and hands with 3 prototypes. A brown spot is defined as solar or senile lentigo and post-inflammatory hyperpigmentation (PIH).
Each treatment corresponds to a combination of a specific sequence of a cryogenic spray and of a frequency of application.
The study will evaluate 3 prototypes :
Prototypes will be applied on the face and hands according to specific frequencies of application.
Hyperpigmentation is a problem in all skin types. Safe depigmentation is a challenge. Cryotherapy with liquid nitrogen at -70 °C has been used in the treatment of solar skin lesions for many years but causes considerable damage.
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.
A solar/senile lentigo is a flat, well-circumscribed patch. It can be round, oval or irregular in shape. Colour varies from skin-coloured, tan to dark brown or black, and size varies from a few millimetres to several centimetres in diameter. They can be slightly scaly. 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 its research and development activities, the sponsor has selected other sequences of a specific cryogenic spray (3 prototypes of devices for face and hands used according to different frequencies of application, i.e. 4 conditions evaluated) which has been used effectively and safely for lentigos treatment in Fitzpatrick phototypes I to IV on the face, with benefit for the subjects without any adverse safety outcomes. There is therefore a need to test the devices for lentigo and PIH on darker skin phototypes (V and VI according to Fitzpatrick scale), which also encounter hyperpigmentation challenges.
The rational for this study is to obtain a proof of performance on a representative panel sufficient to get statistically significant results of the expected effects. This will complete the data obtained during the previous proof of performance studies already performed on small panels as prerequisite data and have demonstrated an acceptable benefit/risk ratio.
Design:
The study is a proof of performance designed to be interventional, monocentric, randomized and double blinded.
Intervention:
Application on the skin of the face and the hands for the prototypes (816-v1 001) to (816-v1 200).
Each spot will be treated 6 times during the study:
The distribution of the spots per phototypes and per condition is the following:
127 studies on the registry are indexed under Hyperpigmentation; 28 are open to participants now.
This study's enrollment of 32 is close to the median of 32 across 113 interventional studies indexed under Hyperpigmentation.
Browse Hyperpigmentation studies →Cryonove Pharma is the lead sponsor of 11 studies on the registry; 2 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
For female subjects:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Application on the brown spots of the face and/or hands for the prototypes (816-v1001) to (816-v1 050) at D0, D1, D2, D3, D4 and D5.
Device: Prototypes (816-v1 001) to (816-v1 050)
Application on the brown spots of the face and/or hands for the prototypes (816-v1 051) to (816-v1 100) at D0, D7, D14, D21, D28 and D35.
Device: Prototype (816-v1 051) to (816-v1 100)
Application on the brown spots of the face and/or hands for the prototypes (816-v1 101) to (816-v1 150) at D0, D14, D28, D42, D56 and D70.
Device: Prototypes (816-v1 101) to (816-v1 150)
Application on the brown spots of the face and/or hands for the prototypes (816-v1 151) to (816-v1 200) at D0, D14, D28, D42, D56 and D70.
Device: Prototypes (816-v1 151) to (816-v1 200)
Application on brown spots located on the face and/or the hand (6 treatments during the study). An operator previously trained by the dermatologist will apply the study device to the patient's face or/and hand. Subjects will be lying supine, and the prototypes will be administered upside down for the applications on the face and sitting for the applications on the hands. For the application on the hands, the hands will be placed flat on the table and the prototypes will be applied upside down. During applications on the face, subjects will wear diving goggles protecting the eyes from cryogenic gas.
Application on brown spots located on the face and/or the hand (6 treatments during the study). An operator previously trained by the dermatologist will apply the study device to the patient's face or/and hand. Subjects will be lying supine, and the prototypes will be administered upside down for the applications on the face and sitting for the applications on the hands. For the application on the hands, the hands will be placed flat on the table and the prototypes will be applied upside down. During applications on the face, subjects will wear diving goggles protecting the eyes from cryogenic gas.
Application on brown spots located on the face and/or the hand (6 treatments during the study). An operator previously trained by the dermatologist will apply the study device to the patient's face or/and hand. Subjects will be lying supine, and the prototypes will be administered upside down for the applications on the face and sitting for the applications on the hands. For the application on the hands, the hands will be placed flat on the table and the prototypes will be applied upside down. During applications on the face, subjects will wear diving goggles protecting the eyes from cryogenic gas.
Application on brown spots located on the face and/or the hand (6 treatments during the study). An operator previously trained by the dermatologist will apply the study device to the patient's face or/and hand. Subjects will be lying supine, and the prototypes will be administered upside down for the applications on the face and sitting for the applications on the hands. For the application on the hands, the hands will be placed flat on the table and the prototypes will be applied upside down. During applications on the face, subjects will wear diving goggles protecting the eyes from cryogenic gas.
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).
Time frame: 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
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.
Time frame: 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
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.
Time frame: 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
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
Time frame: 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
Self-assesment of pain by the 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. One end is the "maximum pain imaginable". The other end is "no pain."
Time frame: Day 0
Change from baseline spots visibility
Standardized photographs will be taken using a Dermatoscope C-Cube® (PIXIENCE).The capture will be taken on the previously selected PIH/lentigo and a spotless area
Time frame: Day 0, Day 7, Day 14, Day 21, Day 28, Day 35, Day 42, Day 49, Day 56, Day 70, Day 84, Day 0+6 months
Rating of spots and spotless areas visibility
Evaluation will be performed using a lentigines global improvement scale. Scoring of spots and spotless areas will be performed after the end of D84 visits on C-cube images by 3 dermatologists. It will be performed for each condition on pictures taken 2 weeks after the end of the treatment for the concerned condition.
Time frame: Day 21, Day 49, Day 84
Self assessment of skin appearance
The skin appearance will be assessed by subjects through a 3 items questionnaire with 5-point scale
Time frame: 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
Plan to share: No
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Ran from Apr 2023 to primary completion in Aug 2023, 3 months.
Of 27 industry-sponsored interventional studies with no phase under Hyperpigmentation, half reached primary completion within 3 months of starting (the median), counting those still running; a quarter within 3 and three quarters within 10. This study's 3 months is close to that.
Counting every sponsor, half of 64 studies reached it within 7 months; a quarter within 3 and three quarters within 25.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.
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Cryonove Pharma