Comparison Between Rituximab Treatment and General Corticotherapy Treatment in Patients With Pemphigus (Rituximab 3)

Comparison Between Rituximab Treatment and General Corticotherapy Treatment in Patients With Pemphigus

Comparison Between Monoclonal Antibody CD20 Treatment (Rituximab (mabthéra))and General Corticotherapy Treatment in Patients With Pemphigus

Pemphigus is a severe and sometimes life-threatening disease with a mortality rate between 5 and 10 percent depending on the severity of disease and age of patients. The standard of care is high doses of corticosteroids (CS) (usually, prednisone, 1 to 1.5. mg/kg/day, which are often associated with immunosuppressive drugs i.e., azathioprine, mycophenolate mofetil, cyclophosphamide, cyclosporine, although only one randomised study has demonstrated the superiority of the combination of corticosteroids and immunosuppressive drugs as compared to corticosteroids alone (9). Because of the low frequency of the disease, control trials are difficult to conduct. Evaluation of the different treatment regimens proposed, i;e; corticosteroids alone, CS and immunosuppressive drugs, IV immunoglobulins or new therapeutic regimens such as rituximab (an anti-CD20 monoclonal antibody directed against B- lymphocytes) or immunoadsorbtion.

for patients with severe pemphigus : general corticotherapy Arm : 1.5mg/kg/d for 1 month, then 1.25mg/kg/d for 1 month, then 1mg/kg/d for 1 month, then 0.75 mg/kg/d for 1 month, then 0.5 mg/kg/d for 3 months, then 0.3 mg/kg/d for 3 months, then 0.2 mg/kg/d for 4 months, then 0.1 mg/kg/d for 4 months, for patients with moderated pemphigus : general corticotherapy Arm : 1mg/kg/d for 1 month, then 0.75mg/kg/d for 1 month, then 0.5mg/kg/d for 2 months, then 0.3 mg/kg/d for 2 months, then 0.2 mg/kg/d for 3 months, then 0.1 mg/kg/d for 3 months,

for patients with severe pemphigus : rituximab Arm : 1mg/kg/d for 1 month, then 0.75 mg/kg/d for 1 month, then 0.5 mg/kg/d for 1 month, then 0.3 mg/kg/d for 1 month, then 0.2 mg/kg/d for 1 month, then 0.1 mg/kg/d for 1 month for patients with moderated pemphigus : rituximab Arm : 0.5mg/kg/d for 1 month, then 0.30 mg/kg/d for 1 month, then 0.2 mg/kg/d for 1 month,

Number of patients with pemphigus with both cutaneous and mucosal lesions healing after 6 months of rituximab treatment

Inclusion Criteria: age >=18 and <= 80years consent obtained from patient effective female contraceptive method for women in procreate age new case of pemphigus vulgaris (PV) or pemphigus foliaceus (PF) Exclusion Criteria: pemphigus vulgaris (PV) or pemphigus foliaceus (PF) treated pregnant woman or nursing mother woman able to have a baby and without contraception during the clinical trial period age < 18 or > 80 karnovsky < 50% serious antecedents of allergy or anaphylactic reaction with human monoclonal antibody patient with depletion lymphocytic treatment in the next month unstable angina or ischemic heart disease cardiac insufficiency cardiac rhythm trouble uncontrolled positive HIV serology positive hepatitis B and / or C serology no consent

Mignard C, Maho-Vaillant M, Golinski ML, Balaye P, Prost-Squarcioni C, Houivet E, Calbo SB, Labeille B, Picard-Dahan C, Konstantinou MP, Chaby G, Richard MA, Bouaziz JD, Duvert-Lehembre S, Delaporte E, Bernard P, Caux F, Alexandre M, Ingen-Housz-Oro S, Vabres P, Quereux G, Dupuy A, Debarbieux S, Avenel-Audran M, D'Incan M, Bedane C, Beneton N, Jullien D, Dupin N, Misery L, Machet L, Beylot-Barry M, Dereure O, Sassolas B, Benichou J, Joly P, Hebert V; French Study Group on Autoimmune Bullous Skin Diseases. Factors Associated With Short-term Relapse in Patients With Pemphigus Who Receive Rituximab as First-line Therapy: A Post Hoc Analysis of a Randomized Clinical Trial. JAMA Dermatol. 2020 May 1;156(5):545-552. doi: 10.1001/jamadermatol.2020.0290.

Joly P, Maho-Vaillant M, Prost-Squarcioni C, Hebert V, Houivet E, Calbo S, Caillot F, Golinski ML, Labeille B, Picard-Dahan C, Paul C, Richard MA, Bouaziz JD, Duvert-Lehembre S, Bernard P, Caux F, Alexandre M, Ingen-Housz-Oro S, Vabres P, Delaporte E, Quereux G, Dupuy A, Debarbieux S, Avenel-Audran M, D'Incan M, Bedane C, Beneton N, Jullien D, Dupin N, Misery L, Machet L, Beylot-Barry M, Dereure O, Sassolas B, Vermeulin T, Benichou J, Musette P; French study group on autoimmune bullous skin diseases. First-line rituximab combined with short-term prednisone versus prednisone alone for the treatment of pemphigus (Ritux 3): a prospective, multicentre, parallel-group, open-label randomised trial. Lancet. 2017 May 20;389(10083):2031-2040. doi: 10.1016/S0140-6736(17)30070-3. Epub 2017 Mar 22.