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Acne is a chronic, inflammatory skin condition. It may cause scars and post-inflammatory hyperpigmentation (PIHP). PIHP frequently affects individuals with a phototype of IV or above.[1] PIHP is worsened by UV radiation, lasts for years and impacts the individual well-being.[2, 3] In an observational study, 1785 adults with a phototype ranging from IV to VI with acne and PIHP applied daily for 2 months a dermocosmetic and a tainted sunscreen product (DC, Effaclar® Duo (+); SS, Anthelios® Shaka Fluide SPF 50+, SS; both La Roche-Posay Laboratoire Dermatologique, France.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| anti-acne dermocosmetic | Other | Topical application once daily for 2 months |
|
| Measure | Description | Time Frame |
|---|---|---|
| seborrhoea level | visual analog scale scale 0=none to 10= very severe | baseline |
| seborrhoea level | visual analog scale 0=none to 10= very severe | Month 2 |
| acne severity | GEA (Global evaluation of acne) scale 0=none to 5=very severe | baseline |
| acne severity | GEA (Global evaluation of acne) scale 0=none to 5=very severe | Month 2 |
| PAHPI: post-acne hyperpigmentation index | post-acne hyperpigmentation index from <3mm to >10mm | baseline |
| PAHPI: post-acne hyperpigmentation index | post-acne hyperpigmentation index from <3mm to >10mm | Month 2 |
| inflammatory lesions | lesion count | baseline |
| inflammatory lesions | lesion count | Month 2 |
| non-inflammatory lesions | lesion count |
| Measure | Description | Time Frame |
|---|---|---|
| Investigator satisfaction acne | visual analog scale from very unsatified=0 to very satisfied=5 | Month 2 |
| Investigator satisfaction | visual analog scale from very unsatified=0 to very satisfied=5 |
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Inclusion Criteria:
Exclusion Criteria:
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Adult subjects with mild to moderate acne, post-inflammatory hyperpigmentation and of any phototype were suitable for this study.
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| Name | Affiliation | Role |
|---|---|---|
| Rana Shabab | Dermatique Skin Care, Khobar, KSA | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| L'Oreal | Dubai | United Arab Emirates |
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| ID | Term |
|---|---|
| D000152 | Acne Vulgaris |
| D017495 | Hyperpigmentation |
| ID | Term |
|---|---|
| D017486 | Acneiform Eruptions |
| D012871 | Skin Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D012625 | Sebaceous Gland Diseases |
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| baseline |
| non-inflammatory lesions | lesion count | Month 2 |
| Month 2 |
| Patient satisfaction acne | visual analog scale from very unsatified=0 to very satisfied=5 | Month 2 |
| Patient satisfaction PAHPI | visual analog scale from very unsatified=0 to very satisfied=5 | Month 2 |
| Patient: Skin quality | visual analog scale from very unsatified=0 to very satisfied=5 | Month 2 |
| D010859 | Pigmentation Disorders |