Publications by authors named "Passeron T"

Importance: Vitiligo is a chronic autoimmune disorder leading to skin depigmentation and reduced quality of life (QOL). Patients with extensive and very active disease are the most difficult to treat.

Objective: To assess the efficacy and adverse events of baricitinib combined with narrowband UV-B in adults with severe, active, nonsegmental vitiligo.

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CLEC12B is a C-type lectin receptor involved in the inhibition of NKs-mediated cytotoxicity. We have previously shown that CLEC12B is predominantly expressed on melanocytes and inhibits melanin production and pigmentation as well as proliferation of melanoma. To date, the role of CLEC12B in skin immunity is unknown.

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Research over the last decade has revealed that the normally pigmented skin of patients with vitiligo is not normal at all, as evidenced by alterations in cutaneous morphology and modifications in cellular and metabolic functions that ultimately drive immune activation against melanocytes. Furthermore, nonlesional skin is in a state of subclinical inflammation until triggered by internal and/or external exposomal events. Therefore, targeting early processes that drive immune dysregulation in normally pigmented skin may avoid or reduce melanocyte loss.

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Background: Conventional sunscreens shield the skin from ultraviolet (UV) rays up to 370 nm leaving wavelengths between 370 and 400 nm unfiltered despite their potentially harmful biological and clinical effects.

Objective: The beneficial effects of methoxypropylamino cyclohexenylidene ethoxyethylcyanoacetate (MCE) UVA1 filter were explored at 1% in a SPF50 sunscreen under outdoors summer conditions against pigmentation and aging signs compared against a reference SPF50 without the MCE filter.

Materials And Methods: A prospective randomized comparative intra-individual study was conducted in 52 Brazilian women (phototype I-III).

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Background: Patients with atopic dermatitis (AD) may discontinue dupilumab owing to dupilumab-induced ocular adverse events (DOAEs) or dupilumab-induced facial redness (DFR).

Objective: To evaluate DOAE and DFR outcomes after switching to tralokinumab or Janus kinase inhibitor (JAKi).

Methods: This retrospective study included 106 patients discontinuing dupilumab because of DOAEs and/or DFR.

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Importance: Safe and effective long-term treatments for moderate to severe plaque psoriasis are needed.

Objective: To evaluate the long-term safety and efficacy of deucravacitinib through 3 years (week 148) in the randomized POETYK PSO-1, PSO-2, and nonrandomized long-term extension (LTE) trials.

Design, Setting, And Participants: PSO-1/PSO-2 were global, 52-week, randomized, double-blinded phase 3 trials in patients with moderate to severe plaque psoriasis.

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Article Synopsis
  • The study investigated the use of avdoralimab, an anti-C5aR1 monoclonal antibody, as a treatment for bullous pemphigoid, a skin condition associated with C5a-C5aR1 activation.
  • A phase 2 trial was conducted where patients were randomly assigned to receive either topical steroids alone or with avdoralimab, observing their disease control and remission after treatment.
  • Results showed no significant benefit from avdoralimab compared to steroids alone, as similar rates of disease control and remission were observed in both groups, with no reported adverse effects.
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Secondary prevention of skin cancer consists in early detection of malignant lesions through patients' mole self-examination and medical examination. The objective of this study was to assess the self-reported  frequency of mole examination in a large, representative sample of the adult general population of 17 countries from all continents. Of a total of 17,001 participants, 4.

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Background: Janus kinase (JAK) inhibition is a promising approach for treating vitiligo. We aimed to assess the efficacy and safety of upadacitinib, an oral selective JAK inhibitor, in adults with non-segmental vitiligo.

Methods: This was a phase 2, multicentre, randomised, double-blind, placebo-controlled, dose-ranging study completed at 33 clinical centres in the United States, Canada, France, and Japan.

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The skin microbiome undergoes constant exposure to solar radiation (SR), with its effects on health well-documented. However, understanding SR's influence on host-associated skin commensals remains nascent. This review surveys existing knowledge on SR's impact on the skin microbiome and proposes innovative sun protection methods that safeguard both skin integrity and microbiome balance.

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Background: Patients with lichen planus (LP) refractory to available therapies often experience a high disease burden, representing a population with a clear unmet need for new treatments.

Objectives: To evaluate the efficacy and safety of secukinumab 300 mg over 32 weeks in adult patients with biopsy-proven cutaneous LP (CLP), mucosal LP (MLP) or lichen planopilaris (LPP) that is inadequately controlled by topical corticosteroids.

Methods: PRELUDE was a randomized double-blind placebo-controlled phase II proof-of-concept study that enrolled patients with CLP, MLP or LPP.

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The objective of our study was to assess the attitudes and behaviors in Japan regarding sun exposure and compare them to those in Europe and North America. The study population was a representative sample of individuals aged >18 years from Ipsos panels in Japan (N = 1000), North America (N = 1000), and Europe (N = 6000) using the quota method. Questionnaires covered habits, practices, and perceptions regarding sun exposure.

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Article Synopsis
  • Hidradenitis suppurativa (HS) is a chronic skin condition, and secukinumab has shown sustained effectiveness and good safety for treating moderate-to-severe HS, though its performance in previously treated patients is unclear.
  • The study analyzes data from two phase III trials (SUNSHINE and SUNRISE) to assess how prior exposure to biologics influences the efficacy and safety of secukinumab in HS patients.
  • Results showed that secukinumab was more effective than placebo at 16 weeks for both biologic-experienced and biologic-naïve patients, indicating it remains a viable treatment option regardless of prior biologic treatment.
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Introduction: Hyperpigmentation disorders are very frequent, affect the quality of life and may become a psychological burden for afflicted patients. Many anti-pigmenting or depigmenting agents are available with various efficacy and almost no comparative data. 2-mercaptonicotinoyl glycine (2-MNG) was recently proposed as a viable candidate showing safe and effective results on hyperpigmentation control in vitro and in vivo.

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