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1.
Contact Dermatitis ; 84(3): 192-195, 2021 Mar.
Article in English | MEDLINE | ID: mdl-32666601

ABSTRACT

BACKGROUND: Fixed drug eruption (FDE) is a characteristic form of intraepidermal CD8+ T cell-mediated drug reaction, with repeated appearance of isolated or multiple skin lesions in the same location after receiving the offending drug. Non-steroidal anti-inflammatory drugs (NSAID) are the most common cause. Selective inhibitors of inducible cyclooxygenase 2 (COX-2) provoke a lesser degree of allergic or idiosyncratic adverse reactions than conventional NSAID, but they can cause skin reactions of variable severity. OBJECTIVE: Etoricoxib has been related to a variety of unusual skin reactions, including several reports of FDE. METHODS: We perfomed epicutaneous test to diagnose patients with suspected etoricoxib fixe drug rash due to clinical features and reproducibility on at least two occasions. RESULTS: We present seven new cases of etoricoxib-induced fixed drug eruption, with a diagnosis based on clinical presentation. This diagnosis was confirmed by an etoricoxib-positive lesional patch test in six cases and by a positive low-dose oral challenge in the other one. Two patients showed negative patch tests with celecoxib (10% in pet.) on the residual lesions, and oral tolerance was confirmed in one. CONCLUSION: To our knowledge, this is the largest series on FDE induced by etoricoxib reported to date.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Cyclooxygenase 2 Inhibitors/adverse effects , Dermatitis, Allergic Contact/etiology , Drug Eruptions/etiology , Etoricoxib/adverse effects , Adult , Aged , Dermatitis, Allergic Contact/diagnosis , Drug Eruptions/diagnosis , Female , Humans , Male , Middle Aged , Patch Tests
3.
Immunotherapy ; 7(2): 89-99, 2015.
Article in English | MEDLINE | ID: mdl-25659029

ABSTRACT

AIM: A double-blind placebo-controlled study was conducted according to EMA guidelines, to evaluate safety, tolerability and short-term treatment effects of three updosing regimens of Dermatophagoides pteronyssinus subcutaneous allergen immunotherapy. PATIENTS & METHODS: Forty-eight patients were randomized to groups: A (six weekly doses), B (eight weekly doses) or C (eight doses, two clustered doses over 3 weeks).  RESULTS: The most frequent adverse events were local reactions. No serious adverse events were found. Severe systemic reactions were reported more frequently in Group C. Decreased cutaneous responses and increased specific IgGs were shown in all active groups, even within the short-term. CONCLUSION:  Dermatophagoides pteronyssinus subcutaneous allergen immunotherapy in depot presentation exhibited good safety and tolerability. Group A seemed to show the best profile for further clinical development.


Subject(s)
Antigens, Dermatophagoides/administration & dosage , Conjunctivitis, Allergic/drug therapy , Dermatophagoides pteronyssinus , Desensitization, Immunologic , Rhinitis, Allergic/drug therapy , Adult , Animals , Antigens, Dermatophagoides/immunology , Conjunctivitis, Allergic/immunology , Conjunctivitis, Allergic/pathology , Female , Humans , Immunoglobulin G/immunology , Injections, Subcutaneous , Male , Rhinitis, Allergic/immunology , Rhinitis, Allergic/pathology
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