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McAdoo SP, Medjeral-Thomas N, Gopaluni S, Tanna A, Mansfield N, Galliford J, Griffith M, Levy J, Cairns TD, Jayne D, Salama AD, Pusey CD. Long-term follow-up of a combined rituximab and cyclophosphamide regimen in renal anti-neutrophil cytoplasm antibody-associated vasculitis. Nephrol Dial Transplant 2019; 34:63-73. [PMID: 29462348 PMCID: PMC6322443 DOI: 10.1093/ndt/gfx378] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 12/18/2017] [Indexed: 01/29/2023] Open
Abstract
Background Current guidelines advise that rituximab or cyclophosphamide should be used for the treatment of organ-threatening disease in anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV), although few studies have examined the efficacy and safety of these agents in combination. Methods We conducted a single-centre cohort study of 66 patients treated with a combination of oral corticosteroids, rituximab and low-dose pulsed intravenous cyclophosphamide followed by a maintenance regimen of azathioprine and tapered steroid for the treatment of biopsy-proven renal involvement in AAV. Patients were followed for a median of 56 months. Case–control analysis with 198 propensity-matched cases from European Vasculitis Study Group (EUVAS) trials compared long-term differences in relapse-free, renal and patient survival. Results At entry, the median Birmingham Vasculitis Activity Score (BVAS) was 19 and estimated glomerular filtration rate was 25 mL/min. Cumulative doses of rituximab, cyclophosphamide and corticosteroids were 2, 3 and 4.2 g, respectively, at 6 months. A total of 94% of patients achieved disease remission by 6 months (BVAS < 0) and patient and renal survival were 84 and 95%, respectively, at 5 years. A total of 84% achieved ANCA-negative status and 57% remained B cell deplete at 2 years, which was associated with low rates of major relapse (15% at 5 years). The serious infection rate during long-term follow-up was 1.24 per 10 patient-years. Treatment with this regimen was associated with a reduced risk of death {hazard ratio [HR] 0.29 [95% confidence interval (CI) 0.125–0.675], P = 0.004}, progression to end-stage renal disease (ESRD) [HR 0.20 (95% CI 0.06–0.65), P = 0.007] and relapse [HR 0.49 (95% CI 0.25–0.97), P = 0.04] compared with propensity-matched patients enrolled in EUVAS trials. Conclusions This regimen is potentially superior to current standards of care, and controlled studies are warranted to establish the utility of combination drug approaches in the treatment of AAV.
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Affiliation(s)
- Stephen P McAdoo
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College London, London, UK.,Vasculitis Clinic, Imperial College Healthcare NHS Trust, London, UK
| | | | | | - Anisha Tanna
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College London, London, UK.,Vasculitis Clinic, Imperial College Healthcare NHS Trust, London, UK
| | | | - Jack Galliford
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College London, London, UK.,Vasculitis Clinic, Imperial College Healthcare NHS Trust, London, UK
| | - Megan Griffith
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College London, London, UK.,Vasculitis Clinic, Imperial College Healthcare NHS Trust, London, UK
| | - Jeremy Levy
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College London, London, UK.,Vasculitis Clinic, Imperial College Healthcare NHS Trust, London, UK
| | - Thomas D Cairns
- Vasculitis Clinic, Imperial College Healthcare NHS Trust, London, UK
| | - David Jayne
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Alan D Salama
- Centre for Nephrology, University College London, London, UK
| | - Charles D Pusey
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College London, London, UK.,Vasculitis Clinic, Imperial College Healthcare NHS Trust, London, UK
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McAdoo SP, Medjeral-Thomas N, Gopaluni S, Tanna A, Mansfield N, Galliford J, Griffith M, Levy J, Cairns TD, Jayne D, Salama AD, Pusey CD. Long-term follow-up of a combined rituximab and cyclophosphamide regimen in renal anti-neutrophil cytoplasm antibody-associated vasculitis. Nephrol Dial Transplant 2018; 33:899. [PMID: 29617842 DOI: 10.1093/ndt/gfy075] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Scott F, Murphy K, Carey L, Greville W, Mansfield N, Barahona P, Robertson R, McLennan A. Prenatal diagnosis using combined quantitative fluorescent polymerase chain reaction and array comparative genomic hybridization analysis as a first-line test: results from over 1000 consecutive cases. Ultrasound Obstet Gynecol 2013; 41:500-507. [PMID: 23401365 DOI: 10.1002/uog.12429] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2012] [Revised: 01/23/2013] [Accepted: 01/25/2013] [Indexed: 06/01/2023]
Abstract
OBJECTIVES First, to assess the performance of a prenatal diagnostic service using quantitative fluorescent polymerase chain reaction (QF-PCR) and array comparative genomic hybridization (aCGH) as first-line investigations. Second, to determine the incidence of copy number variants (CNVs) by indication for testing, with particular reference to ultrasound and biochemical parameters measured in combined first-trimester screening. METHODS All patients undergoing invasive prenatal testing at a specialist prenatal screening service in Sydney, Australia, were included in the study. All samples underwent QF-PCR and targeted aCGH. RESULTS Of 1049 cases, CNVs were reported in 156 (14.9%). Preliminary QF-PCR identified abnormalities in 104 of these cases. Of the remaining 52 cases, 20 could have been detected on karyotype testing, leaving 32 cases (3.1%) with CNVs only detectable by aCGH, of which 13 (1.2%) were pathogenic. Variants of unknown significance (VOUS) were seen in only three cases. Fetal structural abnormalities identified in the first trimester were the group most likely to be associated with pathogenic CNVs (11.8%). CONCLUSIONS Combining QF-PCR and aCGH is an effective first-tier prenatal testing regime that does not require conventional karyotyping. The incidence of VOUS in this study was very low owing to appropriate aCGH targeting and specific reporting criteria that reduced the number of potentially difficult counseling encounters. Pathogenic CNVs are positively correlated with the presence of fetal structural abnormalities, but not with enlarged nuchal translucency or abnormal first-trimester serology results.
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Affiliation(s)
- F Scott
- Sydney Ultrasound for Women, Sydney, New South Wales, Australia.
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Mansfield N, Hamour S, Habib AM, Tarzi R, Levy J, Griffith M, Cairns T, Cook HT, Pusey CD, Salama AD. Prolonged disease-free remission following rituximab and low-dose cyclophosphamide therapy for renal ANCA-associated vasculitis. Nephrol Dial Transplant 2011; 26:3280-6. [PMID: 21414973 DOI: 10.1093/ndt/gfr127] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Rituximab (RTX) has been shown to be effective as an induction agent in anti-neutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV), but studies have been limited by short-term follow-up. We decided to investigate the long-term efficacy and safety of an RTX-based cyclophosphamide (CYP)-sparing regimen (CycLowVas) for renal AAV. METHODS Consecutive patients with renal AAV presenting de novo or with a major relapse, except those with serum creatinine >500 μmol/L, previous treatment with RTX and pulmonary haemorrhage or cerebral vasculitis, were treated with two pulses of RTX 2 weeks apart and six fortnightly doses of CYP, as well as a reducing protocol of daily oral steroids. Maintenance was with low-dose steroids and azathioprine. RESULTS Twenty-three patients were treated. Median follow-up was 39 months, with 17 patients reaching >2 years of follow-up. All patients achieved clinical remission within 6 weeks. Three major and two minor relapses occurred in five patients at a median of 30 months, which were treated by re-dosing with RTX for major relapses and steroid increase alone for minor relapses. Adverse events included one severe drug reaction, four non-serious and one serious infective episodes in the first 3 months, one skin malignancy at 21 months and one death at 19 months not related to treatment or disease. CONCLUSIONS A RTX-based low-dose CYP regimen is effective at inducing long-term disease-free remission and may be the platform on which to develop a steroid-minimizing regimen to further decrease adverse events in the future.
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Nogueira E, Hamour S, Sawant D, Henderson S, Mansfield N, Chavele KM, Pusey CD, Salama AD. Serum IL-17 and IL-23 levels and autoantigen-specific Th17 cells are elevated in patients with ANCA-associated vasculitis. Nephrol Dial Transplant 2010; 25:2209-17. [DOI: 10.1093/ndt/gfp783] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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