Clinical Trial: Pharmacokinetics and Distribution of Dapsone in Leucocytes After Single-dose and Multiple-dose Administration

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

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Official Title: Pharmacokinetics and Distribution of Dapsone (DDS) in Leucocytes After Single-dose and Multiple-dose Administration in Healthy Subjects Genotyped for CYP2C9 and NAT2 and in Patients With Autoimmune Bu

Brief Summary:

The objectives of the study are

• to evaluate pharmacokinetics, distribution in blood leucocytes, metabolism and methemoglobinemia after single-dose and repeated-dose administration of 100 mg of dapsone in healthy subjects genotyped for CYP2C9 and NAT2
• to evaluate serum through levels, distribution in blood leucocytes and methemoglobinemia after repeated-dose treatment with dapsone in patients with autoimmune bullous dermatoses before and after concomitant treatment with glucocorticoids