title: Topical tretinoin for treatment of photodamaged skin. A multicenter study.
abstract: The clinical and histologic effects of a new emollient cream formulation of topical tretinoin at concentrations of 0.05% and 0.01% were examined in 251 subjects with mild to moderate photodamaged facial skin in a randomized, double-blind, vehicle-controlled, multicenter study. Seventy-nine percent of the subjects who received 0.05% tretinoin for 24 weeks showed overall improvement in photodamaged skin compared with improvement in 48% of the vehicle-treated control subjects. Significant reductions were found in fine wrinkling, mottled hyperpigmentation, roughness, and laxity after 0.05% tretinoin therapy when compared with controls. In addition, histologic changes of increased epidermal thickness, decreased melanin content, and stratum corneum compaction provide independent evidence supporting clinical improvement. Side effects of erythema, peeling, and stinging were usually mild and well tolerated.
authors.affiliation: Department of Dermatology, University of California, Irvine 92717.
authors.forename: G D
authors.initials: GD
authors.lastname: Weinstein
authors.forename: T P
authors.initials: TP
authors.lastname: Nigra
authors.forename: P E
authors.initials: PE
authors.lastname: Pochi
authors.forename: R C
authors.initials: RC
authors.lastname: Savin
authors.forename: A
authors.initials: A
authors.lastname: Allan
authors.forename: K
authors.initials: K
authors.lastname: Benik
authors.forename: E
authors.initials: E
authors.lastname: Jeffes
authors.forename: L
authors.initials: L
authors.lastname: Lufrano
authors.forename: E G
authors.initials: EG
authors.lastname: Thorne
mesh_terms: D000279:Administration, Cutaneous; D000328:Adult; D004305:Dose-Response Relationship, Drug; D004311:Double-Blind Method; D005145:Face; D005260:Female; D006801:Humans; D007911:Lentigo / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D010859:Pigmentation Disorders / Q000188:drug therapy; D010919:Placebos; D012867:Skin / Q000187:drug effects / Q000473:pathology; D015595:Skin Aging / Q000187:drug effects*; D012871:Skin Diseases / Q000188:drug therapy; D013684:Telangiectasis / Q000188:drug therapy; D014212:Tretinoin / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D010919:Placebos; D014212:Tretinoin