View clinical trials related to Drug Hypersensitivity Syndrome.
Filter by:Drug Hypersensitivity Syndrome or DRESS for "Drug Reaction with Eosinophilia and Systemic Symptoms" is a serious drug allergy which can be life-threatening for patients with serious organ damage. The pathophysiology of DRESS is still not fully understood. In particular, no study has focused on the characterization of eosinophils, while paradoxically eosinophilia is one of the diagnostic criteria. Likewise, there is no data about the origin of eosinophils and few data are available concerning immune polarization of T-cells or the involvement of innate lymphoid cells type 2 in the recruitment of eosinophils. Our preliminary data on increase activation markers membrane expression of cutaneous eosinophils suggest that this approach could allow the identification of endotypes in which eosinophils are involved and contribute to organ damages. The correlation between tissue infiltration of eosinophils and their degree of activation would then justify the development of targeted therapeutic strategies in DRESS syndrome (anti-IL-5 therapy?). The aim of the project is: 1) Evaluate the activation status of circulating and cutaneous eosinophils in patients with DRESS compared with drug induced maculopapular exanthema without or with eosinophilia (but do not fulfill DRESS criteria) and healthy subjects; 2) Understand the pathophysiological mechanisms at the origin of this eosinophilia.
The multicenter registry of patients with severe cutaneous adverse reactions among tertiary medical institutes in Thailand to study clinical characteristics, etiologies, therapeutic outcomes, quality of life, and the values of in vitro drug allergy diagnosis for the confirmation of the causative drugs
This Study is to evaluate the utility of prospective HLA-B*1301 screening on the incidence of dapsone hypersensitivity syndrome (DHS) in 3130 previously Dapsone(DDS)-naive patients. Those patients include allergic cutaneous vasculitis, urticaria, psoriasis, acne, bullous skin diseases, sterile pustulosis, leprosy, pneumocystis pneumonia and any other patients who need dapsone administration. The study has two (co-primary) objectives: i) to determine if screening for HLA-B*1301 prior to DDS-containing treatment results in a lower incidence of clinically-suspected DHS versus current standard of care (no genetic screening) and ii) to determine if screening for HLA-B*1301 prior to DDS-containing treatment results in a significantly lower incidence of immunologically-confirmed DHS versus current standard of care (no genetic screening or patch testing). The study consists of up to a 5-day screening period, a randomised observation period (Day 1 through Week 6) and, for subjects experiencing a suspected DHS and a subset of DDS-tolerant subjects, an epicutaneous patch test (EPT) assessment period. Eligible subjects will be randomised to one of two study arms: a Current Standard of Care Arm (no prospective genetic screening: Control) and a Genetic Screening Arm (prospective genetic screening: Case). Subjects identified as HLA-B*1301 positive in the prospective Genetic Screening Arm will not receive dapsone and will be excluded from further study. Subjects who experience suspected DHS during the 6-week observation would be withdrawn from dapsone and undergo EPT patch testing 6 weeks later.
Drug reaction with eosinophilia and systemic symptoms (DRESS) is a rare and severe multiorgan adverse drug reaction occurring within 2 to 6-8 weeks after a new drug intake. DRESS syndrome is defined by the combination of clinical manifestations, cutaneous, visceral and biological disturbances. Its prognosis is directly linked to severity of visceral involvement, with a mortality evaluated above 10%. Considering curative treatment, there is no consensus. Until now, no controlled trial has been performed. Systemic steroids are mainly used in first intention, in particular for management of visceral involvements, whatever their severity. From clinical practice, topical steroids are often used and could be helpful in the therapeutic management of DRESS. We propose to evaluate systemic steroids versus very potent topical steroids in a multicentric randomized controlled trial including defined moderate DRESS, ie the non-inferiority of very potent topical steroids in terms of remission of visceral involvement at Day30 and the superiority of very potent topical steroids in terms of delay to remission of skin involvement.