Abstract | OBJECTIVE: DESIGN: Prospective multicenter study. A staff dermatologist blinded to blood hydroxychloroquine concentrations performed a standardized review of medical records and assessment of hydroxychloroquine efficacy in the following 3 categories: complete remission, partial remission (clearing of >50% of skin lesions), or treatment failure. Whole-blood samples were collected for measurement of blood hydroxychloroquine concentration. SETTING: Fourteen French university hospitals. PATIENTS: Three hundred consecutive patients with subacute or chronic CLE who had been treated with hydroxychloroquine for at least 3 months. MAIN OUTCOME MEASURES: The statistical significance of correlation between blood hydroxychloroquine concentration and efficacy of hydroxychloroquine and the statistical associations in univariate and multivariate analyses of complete remission with several variables. RESULTS: The study included 300 patients with discoid lupus erythematosus (n = 160), subacute CLE (n = 86), lupus erythematosus tumidus (n = 52), chilblain lupus (n = 26), and lupus panniculitis (n = 16); 38 of these patients had 2 or more associated forms. Median blood hydroxychloroquine concentration was significantly higher in patients with complete remission (910 [range, <50 to 3057] ng/mL) compared with partial remission (692 [<50 to 2843] ng/mL) and treatment failure (569 [<50 to 2242] ng/mL) (P = .007). In the multivariate analysis, complete remission was associated with higher blood hydroxychloroquine concentrations (P = .005) and the absence of discoid lesions (P = .004). Thirty patients (10.0%) had very low blood hydroxychloroquine concentrations (<200 ng/mL) and may be considered nonadherent to the treatment regimen. CONCLUSION: Monitoring hydroxychloroquine blood concentrations might improve the management of refractory CLE.
|
Authors | Camille Francès, Anne Cosnes, Pierre Duhaut, Noël Zahr, Boutros Soutou, Saskia Ingen-Housz-Oro, Didier Bessis, Jacqueline Chevrant-Breton, Nadège Cordel, Dan Lipsker, Nathalie Costedoat-Chalumeau |
Journal | Archives of dermatology
(Arch Dermatol)
Vol. 148
Issue 4
Pg. 479-84
(Apr 2012)
ISSN: 1538-3652 [Electronic] United States |
PMID | 22508872
(Publication Type: Journal Article, Multicenter Study, Research Support, Non-U.S. Gov't)
|
Chemical References |
- Antimalarials
- Hydroxychloroquine
|
Topics |
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Antimalarials
(blood, therapeutic use)
- Chilblains
(drug therapy)
- Child
- Female
- France
- Humans
- Hydroxychloroquine
(blood, therapeutic use)
- Lupus Erythematosus, Cutaneous
(drug therapy)
- Male
- Medication Adherence
- Middle Aged
- Multivariate Analysis
- Panniculitis, Lupus Erythematosus
(drug therapy)
- Prospective Studies
- Single-Blind Method
- Statistics, Nonparametric
- Treatment Outcome
- Young Adult
|