📇 Rhumatologue · PARIS CEDEX 14 · (75) · Hospitalier

M NICOLAS DUPIN

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4 raisons identifiées

Plateau technique de référence
Assistance publique – Hôpitaux de Paris (APHP) — équipements et expertise pointus pour les cas complexes
Auteur de référence en rhumatologie
28 articles scientifiques publiés — un praticien à la pointe de la recherche
Encadrant universitaire
Forme la prochaine génération de rhumatologues (2 thèses dirigées)
Délais de RDV courts dans la région
336.2 rhumatos / 100 000 hab. — département bien doté

Rhumatologue

📍 PARIS CEDEX 14 (75)HospitalierRPPS 10001399640

Enseignement

📊 Reconnaissance scientifique : 9/100📝 70 articles publiés🇫🇷 Publications académiques françaises (8)🎓 2 thèses dirigées

✨ Génération du profil synthétique IA en cours…

Données ANS publiques (Licence Ouverte 2.0) · Enrichissements MonRhumato 100 % opt-in · Toute personne référencée peut demander la suppression ou la rectification.

Top publications · les plus citées

Doxycycline prophylaxis and meningococcal group B vaccine to prevent bacterial sexually transmitted infections in France (ANRS 174 DOXYVAC): a multicentre, open-label, randomised trial with a 2 × 2 factorial design

The Lancet. Infectious diseases · 2024

📚 132 citations🎯 RCR 35.94Top 0% NIH🩺 Clinique

Bartonella and Coxiella infections presenting as systemic vasculitis: case series and review of literature

Rheumatology (Oxford, England) · 2022

📚 25 citations🎯 RCR 3.24Top 15% NIH

Lire l'abstract Crossref ↓

Abstract Objectives Coxiella and Bartonella spp. display particular tropism for endothelial or endocardial tissues and an abnormal host response to infections with induced autoimmunity. We aimed, through a case series combined with a comprehensive literature review, to outline characteristics of Coxiella and Bartonella infections presenting as systemic vasculitis. Methods We retrospectively included cases of definite Coxiella and Bartonella infections presenting with vasculitis features and performed a comprehensive literature review. Results Six cases of Bartonella infections were added to 18 cases from literature review. Causative pathogens were mainly B. henselae. Bartonella infection mimicked ANCA-associated vasculitis in 83% with PR3-ANCA and presented as cryoglobulinaemic vasculitis in 8%. GN was present in 92%, and 88% had endocarditis. Complement fractions were low in 82% and rheumatoid factor positive in 85%. Kidney biopsies showed cell proliferation, mostly crescentic, with pauci-immune GN in 29%. Outcome was favourable, with the use of antibiotics alone in one-third. Five cases of Coxiella infections were added to 16 from literature review. Sixteen had small-vessel vasculitides, mainly cryoglobulinaemia vasculitis in 75%. One patient had polyarteritis nodosa-like vasculitis and four large-vessel vasculitis. Outcome was good except for one death. A highly sensitive next generation sequencing analysis on three Coxiella- and two Bartonella-related vasculitides biopsies did not find any bacterial DNA. Conclusion Coxiella and Bartonella are both able to induce vasculitis but display distinct vasculitis features. Bartonella mimics PR3-ANCA-associated vasculitis in the setting of endocarditis, whereas Coxiella may induce vasculitis involving all vessel sizes.

Sustained Remission Without Corticosteroids Among Patients With Pemphigus Who Had Rituximab as First-Line Therapy: Follow-Up of the Ritux 3 Trial

JAMA dermatology · 2024

📚 18 citations🎯 RCR 4.85Top 8% NIH🩺 Clinique🔓 Open Access

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ImportanceThe Ritux 3 trial demonstrated the short-term efficacy and safety of first-line treatment with rituximab compared with a standard corticosteroid regimen in pemphigus. No data on the long-term follow-up of patients who received rituximab as first line are available.ObjectiveTo assess the long-term efficacy and safety of the Ritux 3 treatment regimen.Design, Setting, and ParticipantsThis 7-year follow-up study of the Ritux 3 trial included patients with pemphigus from 25 dermatology departments in France from January 1, 2010, to December 31, 2015.ExposurePatients were initially randomized in the rituximab plus prednisone group or prednisone-alone group.Main outcomes and measuresThe primary outcome was the 5- and 7-year disease-free survival (DFS) without corticosteroids, assessed by Kaplan-Meier curves. Secondary outcomes were occurrence of relapse, occurrence of severe adverse events (SAEs), and evolution of antidesmoglein (Dsg) antibody enzyme-linked immunosorbent assay values to predict long-term relapse.ResultsOf the 90 patients in the Ritux 3 trial, 83 were evaluated at the end of follow-up study visit (44 in the rituximab plus prednisone group; 39 in the prednisone-alone group) with a median (IQR) follow-up of 87.3 (79.1-97.5) months. Forty-three patients (93%) from the rituximab plus prednisone and 17 patients (39%) from the prednisone-alone group had achieved complete remission without corticosteroids at any time during the follow-up. Patients from the rituximab group had much longer 5- and 7-year DFS without corticosteroids than patients from the prednisone-alone group (76.7% and 72.1% vs 35.3% and 35.3%, respectively; P &amp;lt; .001), and had about half the relapses (42.2% vs 83.7%; P &amp;lt; .001). Patients who received rituximab as second-line treatment had shorter DFS than patients treated as first line (P = .007). Fewer SAEs were reported in the rituximab plus prednisone group compared with the prednisone-alone group, 31 vs 58 respectively, corresponding to 0.67 and 1.32 SAEs per patient, respectively (P = .003). The combination of anti-Dsg1 values of 20 or more IU/mL and/or anti-Dsg3 values of 48 or more IU/mL yielded 0.83 positive predictive value and 0.94 negative predictive value to predict long-term relapse.Conclusions and RelevanceIn this secondary analysis of the Ritux 3 trail, first-line treatment of patients with pemphigus with the Ritux 3 regimen was associated with long-term sustained complete remission without corticosteroid therapy without any additional maintenance infusion of rituximab.

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M NICOLAS DUPIN

Pourquoi vous devez consulter ce praticien

Direction de thèses

Activité de recherche & publications

Publications académiques en France

Lieu de consultation

Tarifs & secteur de conventionnement

Prendre rendez-vous & contact

Top publications · les plus citées

Publications scientifiques (28) — classées par pathologie

Transversal12

Épidémiologie & registres5

Case report / série3

Biothérapies non-anti-TNF2

Pharmacovigilance2

Revue générale2

csDMARDs1

Essai clinique1

JAK inhibiteurs1

Vraie vie / RWE1

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