Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-25 @ 1:38 AM
Ignite Modification Date:
2025-12-25 @ 1:38 AM
NCT ID:
NCT06903494
Brief Summary:
In May 2018, the PNDS (national diagnosis and care protocol) for pemphigus drawn up by the autoimmune bullous diseases reference centre was amended to take into account the results of recent studies and proposed, in line with the rituximab as 1st-line treatment: 1g repeated at 15-day intervals, then in the event of complete clinical remission, at 6 months: an infusion of 500mg or 1g in patients with initially severe pemphigus and/or who still have a high level of anti desmogleins at 3 months. The primary objective of the study is to prospectively evaluate the relapse rate during the first year of patients with newly diagnosed pemphigus treated according to the recommendations of the revised PNDS.
Detailed Description:
Pemphigus is a rare, potentially life-threatening autoimmune bullous disease affecting both the skin and mucous membranes in which pathogenic IgG antibodies are directed against desmosomal transmembrane desmoglein (Dsg) 1 and 3. The initial severity of lesions in pemphigus correlates with levels of serum anti-Dsg antibodies anti-Dsg 1 and anti-Dsg 3 serum antibody levels, respectively. High doses of oral corticosteroids (OCs), sometimes combined with immunosuppressive drugs (azathioprine, mycophenolate mofetil) have been the mainstay of pemphigus treatment for many years for many years.
Over the last decade, more than 1,000 patients with recalcitrant or relapsing pemphigus have been treated pemphigus treated with rituximab (anti-CD20 monoclonal antibody) have been monoclonal antibody) have been reported in the literature.
The efficacy and safety of rituximab as a first-line treatment for patients with moderate to severe forms of pemphigus were recently evaluated in a large randomised controlled trial. Two predictive factors for early relapse that can be easily used in practice were identified, with a positive predictive value of 50% and a negative predictive value of 94% (initial PDAI severity score \>45 and anti-desmoglein 1 \>20 IU/ml and/or anti-desmoglein 3 \>130 IU/ml at M3 after the first rituximab infusion).
Thus, the probability of an early relapse in patients presenting at least one of these 2 clinico-immunological criteria is 50%, whereas the probability of not relapsing in patients with none of these criteria is 94%.
In May 2018, the PNDS (national diagnosis and care protocol) for pemphigus drawn up by the autoimmune bullous diseases reference centre was amended to take into account the results of recent studies and proposed, in line with the rituximab as 1st-line treatment: 1g repeated at 15-day intervals, then in the event of complete clinical remission, at 6 months: an infusion of 500mg or 1g in patients with initially severe pemphigus and/or who still have a high level of anti desmogleins at 3 months. The primary objective of the study is to prospectively evaluate the relapse rate during the first year of patients with newly diagnosed pemphigus treated according to the recommendations of the revised PNDS.
Study:
NCT06903494
Study Brief:
Protocol Section:
NCT06903494