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Ruggenenti P, Reinhard L, Ruggiero B, Perna A, Perico L, Peracchi T, Fidone D, Gennarini A, Benigni A, Cortinovis M, Hoxha E, Remuzzi G. Anti-Phospholipase A2 Receptor 1 and Anti-Cysteine Rich Antibodies, Domain Recognition and Rituximab Efficacy in Membranous Nephropathy: A Prospective Cohort Study. Am J Kidney Dis 2024; 83:588-600.e1. [PMID: 38151224 DOI: 10.1053/j.ajkd.2023.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 09/08/2023] [Accepted: 10/15/2023] [Indexed: 12/29/2023]
Abstract
RATIONALE & OBJECTIVE Proteinuria and anti-phospholipase A2 receptor 1 (anti-PLA2R1) antibody titers are associated with primary membranous nephropathy (MN) outcomes. We evaluated the association of antibodies against the cysteine-rich (CysR) and C-type lectin 1, 7, and 8 (CTLD1, CTLD7, and CTLD8) domains of PLA2R1 with MN outcomes. STUDY DESIGN Prospective cohort study. SETTING & PARTICIPANTS One-hundred-thirteen consecutive, consenting patients referred to the Nephology Unit of the Azienda-Socio-Sanitaria-Territoriale (ASST) Papa Giovanni XXIII (Bergamo, Italy) with PLA2R1-related, biopsy-proven MN whose persistent nephrotic syndrome (NS) was managed conservatively for>6 months and were monitored with serial evaluations of proteinuria, autoantibodies (by enzyme-linked immunosorbent assay), and clinical outcomes. EXPOSURE Rituximab. OUTCOME Complete (proteinuria<0.3g/24h) or partial (proteinuria≥0.3g/24h and<3.0g/24h with>50% reduction vs basal) NS remission. ANALYTICAL APPROACH Univariable and multivariable Cox regression analyses. RESULTS All patients had anti-CysR antibodies; 62 (54.9%) were multidomain recognizers. Anti-PLA2R1 and anti-CysR antibody titers were strongly correlated at baseline (P<0.001, r=0.934), 6 months (P<0.001, r=0.964), and 12 months (P<0.001, r=0.944). During a median follow-up of 37.1 (IQR, 20.3-56.9) months, 71 patients (62.8%) achieved either complete or partial remission of their NS. Lower baseline anti-PLA2R1 (HR, 0.997 [95% CI, 0.996-0.999], P=0.002) and anti-CysR [HR, 0.996 [95% CI, 0.993-0.998], P=0.001) titers were associated with a higher probability of remission, along with female sex, lower proteinuria, and lower serum creatinine levels (P<0.05 for all comparisons). Anti-CTLD antibodies were not associated with outcomes. At 6 and 12 months, compared to baseline, anti-PLA2R1 and anti-CysR antibody titers decreased more in patients progressing to partial or complete remission than in those without remission (P<0.05 for all comparisons). LIMITATIONS Observational design. CONCLUSIONS In PLA2R1-related MN, anti-PLA2R1 and anti-CysR antibodies similarly predict rituximab efficacy independent of PLA2R1 domain recognition. The choice between these tests should be dictated by feasibility and costs. Evaluating anti-CTLD antibodies appears unnecessary. PLAIN-LANGUAGE SUMMARY Primary membranous nephropathy (MN), a leading cause of nephrotic syndrome (NS) in adults, is an autoimmune disease caused by autoantibodies binding to the podocyte antigen phospholipase A2 receptor 1 (PLA2R1). We assessed whether the effects of anti-CD20 cytolytic therapy with the monoclonal antibody rituximab are associated with detection rates and levels of anti-PLA2R1 antibodies and antibodies against PLA2R1 domains such as cysteine-rich (CysR), and C-type lectin 1, 7, and 8 (CTLD1, 7, and 8), in patients with PLA2R1-related MN and persistent NS. The probability of rituximab-induced complete or partial NS remission was associated with baseline anti-PLA2R1 and anti-CysR antibody titers, but not with anti-CTLD1, 7 and 8 antibodies or multidomain recognition. Integrated evaluation of anti-PLA2R1 or anti-CysR antibodies with proteinuria and kidney function may play a role in monitoring the effects of rituximab in patients with PLA2R1-related NS and MN.
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Affiliation(s)
- Piero Ruggenenti
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy; Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Linda Reinhard
- 3III, Department of Internal Medicine, University Medical Center Hamburg, Eppendorf, Hamburg, Germany
| | - Barbara Ruggiero
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Luca Perico
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Diego Fidone
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Alessia Gennarini
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Ariela Benigni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Monica Cortinovis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Elion Hoxha
- 3III, Department of Internal Medicine, University Medical Center Hamburg, Eppendorf, Hamburg, Germany.
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy.
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Perico N, Remuzzi G, Griffin MD, Cockwell P, Maxwell AP, Casiraghi F, Rubis N, Peracchi T, Villa A, Todeschini M, Carrara F, Magee BA, Ruggenenti PL, Rota S, Cappelletti L, McInerney V, Griffin TP, Islam MN, Introna M, Pedrini O, Golay J, Finnerty AA, Smythe J, Fibbe WE, Elliman SJ, O'Brien T. Safety and Preliminary Efficacy of Mesenchymal Stromal Cell (ORBCEL-M) Therapy in Diabetic Kidney Disease: A Randomized Clinical Trial (NEPHSTROM). J Am Soc Nephrol 2023; 34:1733-1751. [PMID: 37560967 PMCID: PMC10561817 DOI: 10.1681/asn.0000000000000189] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/26/2023] [Indexed: 08/11/2023] Open
Abstract
SIGNIFICANCE STATEMENT Mesenchymal stromal cells (MSCs) may offer a novel therapy for diabetic kidney disease (DKD), although clinical translation of this approach has been limited. The authors present findings from the first, lowest dose cohort of 16 adults with type 2 diabetes and progressive DKD participating in a randomized, placebo-controlled, dose-escalation phase 1b/2a trial of next-generation bone marrow-derived, anti-CD362 antibody-selected allogeneic MSCs (ORBCEL-M). A single intravenous (iv) infusion of 80×10 6 cells was safe and well-tolerated, with one quickly resolved infusion reaction in the placebo group and no subsequent treatment-related serious adverse events (SAEs). Compared with placebo, the median annual rate of decline in eGFR was significantly lower with ORBCEL-M, although mGFR did not differ. The results support further investigation of ORBCEL-M in this patient population in an appropriately sized phase 2b study. BACKGROUND Systemic therapy with mesenchymal stromal cells may target maladaptive processes involved in diabetic kidney disease progression. However, clinical translation of this approach has been limited. METHODS The Novel Stromal Cell Therapy for Diabetic Kidney Disease (NEPHSTROM) study, a randomized, placebo-controlled phase 1b/2a trial, assesses safety, tolerability, and preliminary efficacy of next-generation bone marrow-derived, anti-CD362-selected, allogeneic mesenchymal stromal cells (ORBCEL-M) in adults with type 2 diabetes and progressive diabetic kidney disease. This first, lowest dose cohort of 16 participants at three European sites was randomized (3:1) to receive intravenous infusion of ORBCEL-M (80×10 6 cells, n =12) or placebo ( n =4) and was followed for 18 months. RESULTS At baseline, all participants were negative for anti-HLA antibodies and the measured GFR (mGFR) and estimated GFR were comparable between groups. The intervention was safe and well-tolerated. One placebo-treated participant had a quickly resolved infusion reaction (bronchospasm), with no subsequent treatment-related serious adverse events. Two ORBCEL-M recipients died during follow-up of causes deemed unrelated to the trial intervention; one recipient developed low-level anti-HLA antibodies. The median annual rate of kidney function decline after ORBCEL-M therapy compared with placebo did not differ by mGFR, but was significantly lower by eGFR estimated by the Chronic Kidney Disease Epidemiology Collaboration and Modification of Diet in Renal Disease equations. Immunologic profiling provided evidence of preservation of circulating regulatory T cells, lower natural killer T cells, and stabilization of inflammatory monocyte subsets in those receiving the cell therapy compared with placebo. CONCLUSIONS Findings indicate safety and tolerability of intravenous ORBCEL-M cell therapy in the trial's lowest dose cohort. The rate of decline in eGFR (but not mGFR) over 18 months was significantly lower among those receiving cell therapy compared with placebo. Further studies will be needed to determine the therapy's effect on CKD progression. CLINICAL TRIAL REGISTRATION NUMBER ClinicalTrial.gov NCT02585622 .
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Affiliation(s)
- Norberto Perico
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Matthew D. Griffin
- Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre for Medical Devices, School of Medicine, University of Galway, Galway, Ireland
| | - Paul Cockwell
- Queen Elizabeth Hospital Birmingham, University Hospitals Birmingham NHS Foundation Trust, Birmingham, United Kingdom
- Institute of Ageing and Immunity, University of Birmingham, Birmingham, United Kingdom
| | | | - Federica Casiraghi
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Nadia Rubis
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Alessandro Villa
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Marta Todeschini
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Fabiola Carrara
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Bernadette A. Magee
- Northern Ireland Histocompatibility and Immunogenetics Laboratory, Belfast City Hospital, Belfast, Northern Ireland
| | - Piero L. Ruggenenti
- Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
- Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Stefano Rota
- Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Laura Cappelletti
- Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Veronica McInerney
- Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre for Medical Devices, School of Medicine, University of Galway, Galway, Ireland
- HRB Clinical Research Facility, University of Galway, Galway, Ireland
| | - Tomás P. Griffin
- Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre for Medical Devices, School of Medicine, University of Galway, Galway, Ireland
| | - Md Nahidul Islam
- Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre for Medical Devices, School of Medicine, University of Galway, Galway, Ireland
| | - Martino Introna
- Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Olga Pedrini
- Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
- Fondazione per la Ricerca Ospedale di Bergamo (FROM), Bergamo, Italy
| | - Josée Golay
- Azienda Socio Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Andrew A. Finnerty
- Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre for Medical Devices, School of Medicine, University of Galway, Galway, Ireland
- HRB Clinical Research Facility, University of Galway, Galway, Ireland
- Centre for Cell Manufacturing Ireland, University of Galway, Galway, Ireland
| | - Jon Smythe
- NHS Blood and Transplant Oxford Centre, John Radcliffe Hospital, Oxford, United Kingdom
| | | | | | - Timothy O'Brien
- Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre for Medical Devices, School of Medicine, University of Galway, Galway, Ireland
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Vivarelli M, Colucci M, Algeri M, Zotta F, Emma F, L’Erario I, Busutti M, Rota S, Capelli C, Introna M, Todeschini M, Casiraghi F, Perna A, Peracchi T, De Salvo A, Rubis N, Locatelli F, Remuzzi G, Ruggenenti P. A phase I study of autologous mesenchymal stromal cells for severe steroid-dependent nephrotic syndrome. JCI Insight 2023; 8:e169424. [PMID: 37561590 PMCID: PMC10561718 DOI: 10.1172/jci.insight.169424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 08/08/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUNDSevere forms of idiopathic nephrotic syndrome (INS) require prolonged immunosuppressive therapies and repeated courses of high-dose glucocorticoids. Mesenchymal stromal cells (MSCs) have promising immunomodulatory properties that may be employed therapeutically to reduce patient exposure to medications and their side effects.METHODSWe performed a phase I open-label trial assessing safety and feasibility of autologous bone marrow-derived MSCs (BM-MSCs) in children and young adults with severe forms of steroid-dependent nephrotic syndrome. Following autologous BM-MSC preparation and infusion, oral immunosuppression was tapered. Safety, efficacy, and immunomodulatory effects in vivo were monitored for 12 months.RESULTSSixteen patients (10 children, 6 adults) were treated. Adverse events were limited and not related to BM-MSC infusions. All patients relapsed during follow-up, but in the 10 treated children, time to first relapse was delayed (P = 0.02) and number of relapses was reduced (P = 0.002) after BM-MSC infusion, compared with the previous 12 months. Cumulative prednisone dose was also reduced at 12 months compared with baseline (P < 0.05). No treatment benefit was observed in adults.In children, despite tapering of immunosuppression, clinical benefit was mirrored by a significant reduction in total CD19+, mature, and memory B cells and an increase in regulatory T cells in vivo up to 3-6 months following BM-MSC infusionCONCLUSIONTreatment with autologous BM-MSCs is feasible and safely reduces relapses and immunosuppression at 12 months in children with severe steroid-dependent INS. Immunomodulatory studies suggest that repeating MSC infusions at 3-6 months may sustain benefit.TRIAL REGISTRATIONEudraCT 2016-004804-77.FUNDINGAIFA Ricerca Indipendente 2016-02364623.
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Affiliation(s)
- Marina Vivarelli
- Division of Nephrology, and
- Laboratory of Nephrology, Bambino Gesù Children’s Hospital IRCCS, Rome, Italy
| | - Manuela Colucci
- Laboratory of Nephrology, Bambino Gesù Children’s Hospital IRCCS, Rome, Italy
| | - Mattia Algeri
- Department of Pediatric Hematology/Oncology and Cell and Gene Therapy, Bambino Gesù Children’s Hospital IRCCS, Rome, Italy
| | | | | | | | | | - Stefano Rota
- Unit of Nephrology and Dialysis, Azienda Socio Sanitaria Territoriale (ASST), Bergamo, Italy
| | - Chiara Capelli
- Center of Cellular Therapy “G. Lanzani,” Haematology Department, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Martino Introna
- Center of Cellular Therapy “G. Lanzani,” Haematology Department, ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Marta Todeschini
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | | | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Andrea De Salvo
- Psychology Unit, Bambino Gesù Children’s Hospital IRCCS, Rome, Italy
| | - Nadia Rubis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Franco Locatelli
- Department of Pediatric Hematology/Oncology and Cell and Gene Therapy, Bambino Gesù Children’s Hospital IRCCS, Rome, Italy
- Catholic University of the Sacred Heart, Rome, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Piero Ruggenenti
- Unit of Nephrology and Dialysis, Azienda Socio Sanitaria Territoriale (ASST), Bergamo, Italy
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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Trillini M, Caroli A, Perico N, Remuzzi A, Brambilla P, Villa G, Perna A, Peracchi T, Rubis N, Martinetti D, Caruso M, Leone VF, Cugini D, Carrara F, Remuzzi G, Ruggenenti P. Effects of Octreotide-Long-Acting Release Added-on Tolvaptan in Patients with Autosomal Dominant Polycystic Kidney Disease: Pilot, Randomized, Placebo-Controlled, Cross-Over Trial. Clin J Am Soc Nephrol 2023; 18:223-233. [PMID: 36754009 PMCID: PMC10103320 DOI: 10.2215/cjn.0000000000000049] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 12/02/2022] [Indexed: 01/30/2023]
Abstract
BACKGROUND Tolvaptan and octreotide-long-acting release (LAR) have renoprotective effects in autosomal dominant polycystic kidney disease (ADPKD) that are partially mediated by amelioration of compensatory glomerular hyperfiltration. We compared the effects of tolvaptan and octreotide-LAR combination therapy versus those of tolvaptan monotherapy in patients with ADPKD. METHODS This pilot, randomized, placebo-controlled, cross-over trial primarily compared the effects of 1- and 4-week treatments with octreotide-LAR (two 20-mg i.m. injections) or placebo (two i.m. 0.9% saline solution injections) added-on tolvaptan (up to 90 and 30 mg/d) on GFR (iohexol plasma clearance) in 19 consenting patients with ADPKD referred to a clinical research center in Italy. Analyses were intention-to-treat. The local ethical committee approved the study. RESULTS At 4 weeks, GFR significantly decreased by a median (interquartile range) of 3 (-1 to 5) ml/min per 1.73 m2 with tolvaptan and placebo (P=0.01) and by 7 (3-14) ml/min per 1.73 m2 with tolvaptan and octreotide-LAR (P=0.03). GFR changes during the two treatment periods differed by 2 (-5 to 14) ml/min per 1.73 m2 (P=0.28). At 1 week, GFR significantly decreased by 3 (0-7) ml/min per 1.73 m2 with tolvaptan and placebo (P=0.006) and by 10 (-6 to 16) ml/min per 1.73 m2 with tolvaptan and octreotide-LAR add-on therapy (P<0.001). GFR changes during the two treatment periods significantly differed by 3 (0-12) ml/min per 1.73 m2 (P=0.012). Total kidney volume nonsignificantly changed by 4 (-48 to 23) ml with tolvaptan and placebo (P=0.74), whereas it decreased significantly by 41 (25-77) ml with tolvaptan and octreotide-LAR (P=0.001). Changes during the two treatment periods differed by 36 (0-65) ml (P=0.01). Octreotide-LAR also attenuated (P=0.02) the aquaretic effect of tolvaptan. Treatments were well tolerated. CONCLUSIONS In patients with ADPKD, octreotide-LAR added-on tolvaptan reduced GFR more effectively than octreotide-LAR and placebo. Octreotide-LAR also reduced total and cystic kidney volumes and attenuated the acquaretic effect of tolvaptan. CLINICAL TRIAL REGISTRY NAME AND REGISTRATION NUMBER Tolvaptan-Octreotide LAR Combination in ADPKD (TOOL), NCT03541447.
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Affiliation(s)
- Matias Trillini
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Anna Caroli
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Norberto Perico
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Andrea Remuzzi
- Department of Management, Information and Production Engineering, University of Bergamo, Dalmine, Italy
| | - Paolo Brambilla
- Unit of Radiology, Department of Imaging Diagnostics, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Giulia Villa
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Annalisa Perna
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Nadia Rubis
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Davide Martinetti
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Mariarosa Caruso
- Unit of Nephrology, Department of Medicine, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Valentina Fanny Leone
- Unit of Nephrology, Department of Medicine, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Daniela Cugini
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Fabiola Carrara
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Piero Ruggenenti
- Departments of Renal Medicine and Biomedical Engineering, Centro di Ricerche Cliniche per le Malattie Rare “Aldo e Cele Daccò,” Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
- Unit of Nephrology, Department of Medicine, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
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Perico L, Todeschini M, Casiraghi F, Mister M, Pezzotta A, Peracchi T, Tomasoni S, Trionfini P, Benigni A, Remuzzi G. Long-term adaptive response in COVID-19 vaccine recipients and the effect of a booster dose. Front Immunol 2023; 14:1123158. [PMID: 36926327 PMCID: PMC10011096 DOI: 10.3389/fimmu.2023.1123158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/16/2023] [Indexed: 03/08/2023] Open
Abstract
We examined the immune response in subjects previously infected with SARS-CoV2 and infection-naïve 9 months after primary 2-dose COVID-19 mRNA vaccination and 3 months after the booster dose in a longitudinal cohort of healthcare workers. Nine months after primary vaccination, previously infected subjects exhibited higher residual antibody levels, with significant neutralizing activity against distinct variants compared to infection-naïve subjects. The higher humoral response was associated with higher levels of receptor binding domain (RBD)-specific IgG+ and IgA+ memory B cells. The booster dose increased neither neutralizing activity, nor the B and T cell frequencies. Conversely, infection-naïve subjects needed the booster to achieve comparable levels of neutralizing antibodies as those found in previously infected subjects after primary vaccination. The neutralizing titer correlated with anti-RBD IFNγ producing T cells, in the face of sustained B cell response. Notably, pre-pandemic samples showed high Omicron cross-reactivity. These data show the importance of the booster dose in reinforcing immunological memory and increasing circulating antibodies in infection-naïve subjects.
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Affiliation(s)
- Luca Perico
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Marta Todeschini
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Federica Casiraghi
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Marilena Mister
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Anna Pezzotta
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Susanna Tomasoni
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Piera Trionfini
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Ariela Benigni
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Department of Molecular Medicine, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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Consolaro E, Suter F, Rubis N, Pedroni S, Moroni C, Pastò E, Paganini MV, Pravettoni G, Cantarelli U, Perico N, Perna A, Peracchi T, Ruggenenti P, Remuzzi G. A Home-Treatment Algorithm Based on Anti-inflammatory Drugs to Prevent Hospitalization of Patients With Early COVID-19: A Matched-Cohort Study (COVER 2). Front Med (Lausanne) 2022; 9:785785. [PMID: 35530041 PMCID: PMC9073076 DOI: 10.3389/fmed.2022.785785] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 09/29/2021] [Accepted: 03/18/2022] [Indexed: 12/15/2022] Open
Abstract
Background and AimWhile considerable success has been achieved in the management of patients hospitalized with severe coronavirus disease 2019 (COVID-19), far less progress has been made with early outpatient treatment. We assessed whether the implementation of a home treatment algorithm—designed based on a pathophysiologic and pharmacologic rationale—and including non-steroidal anti-inflammatory drugs, especially relatively selective cyclooxygenase-2 inhibitors and, when needed, corticosteroids, anticoagulants, oxygen therapy and antibiotics—at the very onset of mild COVID-19 symptoms could effectively reduce hospital admissions.MethodsThis fully academic, matched-cohort study evaluated outcomes in 108 consecutive consenting patients with mild COVID-19, managed at home by their family doctors between January 2021 and May 2021, according to the proposed treatment algorithm and in 108 age-, sex-, and comorbidities-matched patients on other therapeutic schedules (ClinicalTrials.gov: NCT04854824). The primary outcome was COVID-19-related hospitalization. Analyses were by intention-to-treat.ResultsOne (0.9%) patient in the “recommended” cohort and 12 (11.1%) in the “control” cohort were admitted to hospital (P = 0.0136). The proposed algorithm reduced the cumulative length of hospital stays by 85% (from 141 to 19 days) as well as related costs (from €60.316 to €9.058). Only 9.8 patients needed to be treated with the recommended algorithm to prevent one hospitalization event. The rate of resolution of major symptoms was numerically—but not significantly—higher in the “recommended” than in the “control” cohort (97.2 vs. 93.5%, respectively; P = 0.322). Other symptoms lingered in a smaller proportion of patients in the “recommended” than in the “control” cohort (20.4 vs. 63.9%, respectively; P < 0.001), and for a shorter period.ConclusionThe adoption of the proposed outpatient treatment algorithm during the early, mild phase of COVID-19 reduced the incidence of subsequent hospitalization and related costs.
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Affiliation(s)
- Elena Consolaro
- Agenzia di Tutela della Salute (ATS) Insubria, Varese, Italy
| | - Fredy Suter
- Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Nadia Rubis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
- *Correspondence: Nadia Rubis
| | | | - Chiara Moroni
- Agenzia di Tutela della Salute (ATS) Insubria, Varese, Italy
| | - Elena Pastò
- Agenzia di Tutela della Salute (ATS) Insubria, Varese, Italy
| | | | | | | | - Norberto Perico
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Piero Ruggenenti
- Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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Ruggenenti P, Cortinovis M, Trillini M, Parvanova A, Abbate M, Satriano C, Salvetti F, Bossi AC, Trevisan R, Perna A, Peracchi T, Rubis N, Diadei O, Martinetti D, Gaspari F, Fontana L, Remuzzi G. Long-term kidney and systemic effects of calorie restriction in overweight or obese type 2 diabetic patients (C.Re.S.O. 2 randomized controlled trial). Diabetes Res Clin Pract 2022; 185:109804. [PMID: 35219762 DOI: 10.1016/j.diabres.2022.109804] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/20/2022] [Accepted: 02/21/2022] [Indexed: 01/10/2023]
Abstract
AIMS In type 2 diabetic patients with obesity, hyperfiltration is a risk factor for accelerated glomerular filtration rate (GFR) decline and is ameliorated by calorie restriction (CR). We assessed whether CR-induced amelioration of hyperfiltration could translate into slower long-term GFR decline in this population. METHODS In this academic, single-center, parallel-group, prospective, randomized, open-label, blinded endpoint trial, consenting >40-year-old patients with type 2 diabetes, BMI ≥27 kg/m2, creatinine <1.2 mg/dL and albuminuria ≤300 mg/24 h were randomized (1:1) to two-year 25% CR (n = 53) or standard diet (SD, n = 50). Primary outcome was 6-month measured GFR. Analyses were by modified intention-to-treat. RESULTS At 6 months GFR decreased by 5.16 ± 10.03 mL/min (P = 0.001) with CR, and by 0.98 ± 9.71 mL/min (P = 0.497) with SD. Between-group difference was significant (P = 0.044). GFR decline from 6 to 24 months was significant with SD (P < 0.01), but not with CR (P = 0.075). Between-group difference, however, was not significant (P = 0.414). Body weight, BMI, waist circumference, systolic blood pressure, HbA1c, blood glucose, serum triglycerides decreased and ApoA-I concentration increased with CR. No changes were observed with SD. Between-group differences were significant. CR was tolerated well. CONCLUSIONS In obese type 2 diabetic patients, CR ameliorated glomerular hyperfiltration and several cardiovascular risk factors, and blunted long-term GFR decline. TRIAL REGISTRATION NCT01930136.
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Affiliation(s)
- Piero Ruggenenti
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy; Unit of Nephrology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Monica Cortinovis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Matias Trillini
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Aneliya Parvanova
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Manuela Abbate
- Research Group on Global Health and Human Development, University of the Balearic Islands (UIB) and Health Research Institute of the Balearic Islands (IdISBa), Palma, Spain
| | - Chiara Satriano
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | | | - Antonio C Bossi
- Unit of Diabetology and Metabolic Diseases, Azienda Socio-Sanitaria Territoriale Bergamo Ovest, Treviglio-Caravaggio-Romano, Bergamo, Italy
| | - Roberto Trevisan
- Unit of Endocrinology 1 and Diabetology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Nadia Rubis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Olimpia Diadei
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Davide Martinetti
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Flavio Gaspari
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy
| | - Luigi Fontana
- Charles Perkins Centre, Faculty of Medicine and Health, University of Sydney, and Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia; Department of Clinical and Experimental Sciences, Brescia University Medical School, Brescia, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro di Ricerche Cliniche per le Malattie Rare "Aldo e Cele Daccò", Bergamo, Italy.
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Ruggenenti P, Caruso MR, Cortinovis M, Perna A, Peracchi T, Giuliano GA, Rota S, Brambilla P, Invernici G, Villa D, Diadei O, Trillini M, Natali G, Remuzzi G. Fresh lemon juice supplementation for the prevention of recurrent stones in calcium oxalate nephrolithiasis: A pragmatic, prospective, randomised, open, blinded endpoint (PROBE) trial. EClinicalMedicine 2022; 43:101227. [PMID: 34977512 PMCID: PMC8683665 DOI: 10.1016/j.eclinm.2021.101227] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/16/2021] [Accepted: 11/19/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Standard diet with normal calcium and reduced animal proteins and salt content reduces stone recurrence in calcium oxalate nephrolithiasis. Whether lemon juice supplementation further reduces recurrence rate is unknown. METHODS In this single-centre, prospective, randomised, open, blinded endpoint trial (Clinical Trials gov NCT01217372) we evaluated the effects of fresh lemon juice supplementation (60 mL twice daily) versus no supplementation, on time to stone recurrence in 203 patients with recurrent idiopathic calcium oxalate nephrolithiasis who were all prescribed a standard diet. Patients were included between July 2009 and March 2017 at the Nephrology Unit of the Papa Giovanni XXIII hospital in Bergamo, Italy. Time to stone recurrence at 2 years of follow-up was the primary outcome. Analyses were by intention-to-treat. FINDINGS During two years of follow-up 21 of 100 patients randomised to lemon juice supplementation and 32 of 103 controls randomised to no supplementation had stone recurrence [HR (95% CI): 0·62 (0·35-1·07), p = 0·089]. Patient adherence to lemon juice supplementation, however, progressively decreased from 68% at one-year to 48% at two-year follow-up. At explorative analyses restricted at one-year follow-up, ten patients with supplementation versus 22 controls had stone recurrence [0·43 (0·20-0·89), p = 0·028]. After adjustment by age, sex and normo or hypocitraturia, the HR (95%) was still significant [0·45 (0·20-0·93), p = 0·036]. At six months, 24 hour urinary sodium excretion decreased by 8·60±65·68 mEq/24 h in patients receiving lemon juice supplementation and increased by 3·88±64·78 mEq/24 h in controls. Changes significantly differed between groups (p = 0·031). This difference was subsequently lost. Treatment was safe. In patients with lemon juice supplementation gastrointestinal disorders were more frequent (p<0·001). Renal and urinary tract disorders were similar between groups (p = 0·103). INTERPRETATION Explorative analyses suggest that fresh lemon juice supplementation to standard diet might prevent stone recurrence in patients with calcium-oxalate nephrolithiasis. However, treatment effect was likely reduced by progressively declining adherence to lemon juice supplementation. FUNDING This study received no funding.
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Affiliation(s)
- Piero Ruggenenti
- Unit of Nephrology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Maria Rosa Caruso
- Unit of Nephrology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Monica Cortinovis
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Annalisa Perna
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giovanni Antonio Giuliano
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Stefano Rota
- Unit of Nephrology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Paolo Brambilla
- Unit of Radiology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Giuliana Invernici
- Unit of Gastroenterology and Digestive Endoscopy, Azienda Socio-Sanitaria Territoriale, Bergamo Est, Alzano Lombardo, Bergamo, Italy
| | - Davide Villa
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Olimpia Diadei
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Matias Trillini
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Grazia Natali
- Unit of Nephrology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Giuseppe Remuzzi
- Clinical Research Center for Rare Diseases “Aldo & Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
- Corresponding author at: Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Centro Anna Maria Astori, Science and Technology Park Kilometro Rosso, Via Stezzano 87, 24126 Bergamo, Italy.
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Ruggenenti P, Di Marco F, Cortinovis M, Lorini L, Sala S, Novelli L, Raimondi F, Gastoldi S, Galbusera M, Donadelli R, Mele C, Piras R, Noris M, Portalupi V, Cappelletti L, Carrara C, Tomatis F, Bernardi S, Perna A, Peracchi T, Diadei O, Benigni A, Remuzzi G. Eculizumab in patients with severe coronavirus disease 2019 (COVID-19) requiring continuous positive airway pressure ventilator support: Retrospective cohort study. PLoS One 2021; 16:e0261113. [PMID: 34928990 PMCID: PMC8687582 DOI: 10.1371/journal.pone.0261113] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 11/24/2021] [Indexed: 12/30/2022] Open
Abstract
Background Complement activation contributes to lung dysfunction in coronavirus disease 2019 (COVID-19). We assessed whether C5 blockade with eculizumab could improve disease outcome. Methods In this single-centre, academic, unblinded study two 900 mg eculizumab doses were added-on standard therapy in ten COVID-19 patients admitted from February 2020 to April 2020 and receiving Continuous-Positive-Airway-Pressure (CPAP) ventilator support from ≤24 hours. We compared their outcomes with those of 65 contemporary similar controls. Primary outcome was respiratory rate at one week of ventilator support. Secondary outcomes included the combined endpoint of mortality and discharge with chronic complications. Results Baseline characteristics of eculizumab-treated patients and controls were similar. At baseline, sC5b-9 levels, ex vivo C5b-9 and thrombi deposition were increased. Ex vivo tests normalised in eculizumab-treated patients, but not in controls. In eculizumab-treated patients respiratory rate decreased from 26.8±7.3 breaths/min at baseline to 20.3±3.8 and 18.0±4.8 breaths/min at one and two weeks, respectively (p<0.05 for both), but did not change in controls. Between-group changes differed significantly at both time-points (p<0.01). Changes in respiratory rate correlated with concomitant changes in ex vivo C5b-9 deposits at one (rs = 0.706, p = 0.010) and two (rs = 0.751, p = 0.032) weeks. Over a median (IQR) period of 47.0 (14.0–121.0) days, four eculizumab-treated patients died or had chronic complications versus 52 controls [HRCrude (95% CI): 0.26 (0.09–0.72), p = 0.010]. Between-group difference was significant even after adjustment for age, sex and baseline serum creatinine [HRAdjusted (95% CI): 0.30 (0.10–0.84), p = 0.023]. Six patients and 13 controls were discharged without complications [HRCrude (95% CI): 2.88 (1.08–7.70), p = 0.035]. Eculizumab was tolerated well. The main study limitations were the relatively small sample size and the non-randomised design. Conclusions In patients with severe COVID-19, eculizumab safely improved respiratory dysfunction and decreased the combined endpoint of mortality and discharge with chronic complications. Findings need confirmation in randomised controlled trials.
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Affiliation(s)
- Piero Ruggenenti
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Fabiano Di Marco
- Unit of Pulmonary Medicine, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Monica Cortinovis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Luca Lorini
- Intensive Care Unit, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Silvia Sala
- Intensive Care Unit, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Luca Novelli
- Unit of Pulmonary Medicine, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Federico Raimondi
- Unit of Pulmonary Medicine, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Sara Gastoldi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Miriam Galbusera
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Roberta Donadelli
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Caterina Mele
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Rossella Piras
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Marina Noris
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Valentina Portalupi
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Laura Cappelletti
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Camillo Carrara
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | - Federica Tomatis
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
- School of Nephrology, Università degli Studi di Milano, Milan, Italy
| | - Silvia Bernardi
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
- School of Nephrology, Università degli Studi di Milano, Milan, Italy
| | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Olimpia Diadei
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Ariela Benigni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
- * E-mail:
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Suter F, Consolaro E, Pedroni S, Moroni C, Pastò E, Paganini MV, Pravettoni G, Cantarelli U, Rubis N, Perico N, Perna A, Peracchi T, Ruggenenti P, Remuzzi G. A simple, home-therapy algorithm to prevent hospitalisation for COVID-19 patients: A retrospective observational matched-cohort study. EClinicalMedicine 2021; 37:100941. [PMID: 34127959 PMCID: PMC8189543 DOI: 10.1016/j.eclinm.2021.100941] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/07/2021] [Accepted: 05/17/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Effective home treatment algorithms implemented based on a pathophysiologic and pharmacologic rationale to accelerate recovery and prevent hospitalisation of patients with early coronavirus disease 2019 (COVID-19) would have major implications for patients and health system. METHODS This academic, matched-cohort study compared outcomes of 90 consecutive consenting patients with mild COVID-19 treated at home by their family physicians between October 2020 and January 2021 in Northern and Central Italy, according to the proposed recommendation algorithm, with outcomes for 90 age-, sex-, and comorbidities-matched patients who received other therapeutic regimens. Primary outcome was time to resolution of major symptoms. Secondary outcomes included prevention of hospitalisation. Analyses were by intention-to-treat. FINDINGS All patients achieved complete remission. The median [IQR] time to resolution of major symptoms was 18 [14-23] days in the 'recommended schedule' cohort and 14 [7-30] days in the matched 'control' cohort (p = 0·033). Other symptoms persisted in a lower percentage of patients in the 'recommended' than in the 'control' cohort (23·3% versus 73·3%, respectively, p<0·0001) and for a shorter period (p = 0·0107). Two patients in the 'recommended' cohort were hospitalised compared to 13 (14·4%) controls (p = 0·0103). The prevention algorithm reduced the days and cumulative costs of hospitalisation by >90%. INTERPRETATION Implementation of an early home treatment algorithm failed to accelerate recovery from major symptoms of COVID-19, but reduced the risk of hospitalisation and related treatment costs. Given the study design, additional research would be required to consolidate the proposed treatment recommendations. FUNDING Fondazione Cav.Lav. Carlo Pesenti.
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Affiliation(s)
- Fredy Suter
- Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
| | | | | | | | | | | | | | | | - Nadia Rubis
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Norberto Perico
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Piero Ruggenenti
- Azienda Socio-Sanitaria Territoriale (ASST) Papa Giovanni XXIII, Bergamo, Italy
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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Bikbov B, Ruggenenti P, Perna A, Perico N, Gotti E, Plati A, Gaspari F, Carrara F, Gambara V, Peracchi T, Rossini G, Rota G, Lacanna F, Amaduzzi A, Colledan M, Remuzzi G. Long-Term Outcomes of Kidney Transplants from Older/Marginal Donors: A Cohort Study. Nephron Clin Pract 2021; 145:642-652. [PMID: 34130292 DOI: 10.1159/000516534] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 04/07/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION To safely expand the donor pool, we introduced a strategy of biopsy-guided selection and allocation to single or dual transplantation of kidneys from donors >60 years old or with hypertension, diabetes, and/or proteinuria (older/marginal donors). Here, we evaluated the long-term performance of this approach in everyday clinical practice. METHODS In this single-center cohort study, we compared outcomes of 98 patients who received one or two biopsy-evaluated grafts from older/marginal donors ("recipients") and 198 patients who received nonhistologically assessed single graft from ideal donors ("reference-recipients") from October 2004 to December 2015 at the Bergamo Transplant Center (Italy). RESULTS Older/marginal donors and their recipients were 27.9 and 19.3 years older than ideal donors and their reference-recipients, respectively. KDPI/KDRI and donor serum creatinine were higher and cold ischemia time longer in the recipient group. During a median follow-up of 51.9 (interquartile range 23.1-88.6) months, 11.2% of recipients died, 7.1% lost their graft, and 16.3% had biopsy-proven acute rejection (BPAR) versus 3.5, 7.6, and 17.7%, respectively, of reference-recipients. Overall death-censored graft failure (rate ratio 0.78 [95% CI 0.33-2.08]), 5-year death-censored graft survival (94.3% [87.8-100.0] vs. 94.2% [90.5-98.0]), BPAR incidence (rate ratio 0.87 [0.49-1.62]), and yearly measured glomerular filtration rate decline (1.18 ± 3.27 vs. 0.68 ± 2.42 mL/min/1.73 m2, p = 0.37) were similar between recipients and reference-recipients, respectively. CONCLUSIONS Biopsy-guided selection and allocation of kidneys from older/marginal donors can safely increase transplant activity in clinical practice without affecting long-term outcomes. This may help manage the growing gap between organ demand and supply without affecting long-term recipient and graft outcomes.
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Affiliation(s)
- Boris Bikbov
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Piero Ruggenenti
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy.,Nephrology Dialysis and Transplantation Unit, ASST-Papa Giovanni XXIII, Bergamo, Italy
| | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Norberto Perico
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Eliana Gotti
- Nephrology Dialysis and Transplantation Unit, ASST-Papa Giovanni XXIII, Bergamo, Italy
| | - AnnaRita Plati
- Nephrology Dialysis and Transplantation Unit, ASST-Papa Giovanni XXIII, Bergamo, Italy
| | - Flavio Gaspari
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Fabiola Carrara
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Vincenzo Gambara
- Nephrology Dialysis and Transplantation Unit, ASST-Papa Giovanni XXIII, Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Rossini
- Organ and Tissue Transplant Immunology Unit, Foundation IRCCS "Ca' Granda Ospedale Maggiore Policlinico", Milan, Italy
| | - Giovanni Rota
- Pediatric Surgery Unit, ASST-Papa Giovanni XXIII, Bergamo, Italy
| | | | - Annalisa Amaduzzi
- General Surgery and Abdominal Transplantation Unit, ASST-Papa Giovanni XXIII, Bergamo, Italy
| | - Michele Colledan
- General Surgery and Abdominal Transplantation Unit, ASST-Papa Giovanni XXIII, Bergamo, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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Ruggenenti P, Podestà MA, Trillini M, Perna A, Peracchi T, Rubis N, Villa D, Martinetti D, Cortinovis M, Ondei P, Condemi CG, Guastoni CM, Meterangelis A, Granata A, Mambelli E, Pasquali S, Genovesi S, Pieruzzi F, Bertoli SV, Del Rosso G, Garozzo M, Rigotti A, Pozzi C, David S, Daidone G, Mingardi G, Mosconi G, Galfré A, Romei Longhena G, Pacitti A, Pani A, Hidalgo Godoy J, Anders HJ, Remuzzi G. Ramipril and Cardiovascular Outcomes in Patients on Maintenance Hemodialysis: The ARCADIA Multicenter Randomized Controlled Trial. Clin J Am Soc Nephrol 2021; 16:575-587. [PMID: 33782036 PMCID: PMC8092055 DOI: 10.2215/cjn.12940820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 02/15/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND OBJECTIVES Renin-angiotensin system (RAS) inhibitors reduce cardiovascular morbidity and mortality in patients with CKD. We evaluated the cardioprotective effects of the angiotensin-converting enzyme inhibitor ramipril in patients on maintenance hemodialysis. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS In this phase 3, prospective, randomized, open-label, blinded end point, parallel, multicenter trial, we recruited patients on maintenance hemodialysis with hypertension and/or left ventricular hypertrophy from 28 Italian centers. Between July 2009 and February 2014, 140 participants were randomized to ramipril (1.25-10 mg/d) and 129 participants were allocated to non-RAS inhibition therapy, both titrated up to the maximally tolerated dose to achieve predefined target BP values. The primary efficacy end point was a composite of cardiovascular death, myocardial infarction, or stroke. Secondary end points included the single components of the primary end point, new-onset or recurrence of atrial fibrillation, hospitalizations for symptomatic fluid overload, thrombosis or stenosis of the arteriovenous fistula, and changes in cardiac mass index. All outcomes were evaluated up to 42 months after randomization. RESULTS At comparable BP control, 23 participants on ramipril (16%) and 24 on non-RAS inhibitor therapy (19%) reached the primary composite end point (hazard ratio, 0.93; 95% confidence interval, 0.52 to 1.64; P=0.80). Ramipril reduced cardiac mass index at 1 year of follow-up (between-group difference in change from baseline: -16.3 g/m2; 95% confidence interval, -29.4 to -3.1), but did not significantly affect the other secondary outcomes. Hypotensive episodes were more frequent in participants allocated to ramipril than controls (41% versus 12%). Twenty participants on ramipril and nine controls developed cancer, including six gastrointestinal malignancies on ramipril (four were fatal), compared with none in controls. CONCLUSIONS Ramipril did not reduce the risk of major cardiovascular events in patients on maintenance hemodialysis. CLINICAL TRIAL REGISTRY NAME AND REGISTRATION NUMBER ARCADIA, NCT00985322 and European Union Drug Regulating Authorities Clinical Trials Database number 2008-003529-17.
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Affiliation(s)
- Piero Ruggenenti
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy,Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Manuel Alfredo Podestà
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy,Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Matias Trillini
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Annalisa Perna
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Nadia Rubis
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Davide Villa
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Davide Martinetti
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Monica Cortinovis
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Patrizia Ondei
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Carmela Giuseppina Condemi
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Carlo Maria Guastoni
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Ovest Milanese, Ospedali di Legnano e Magenta, Milano, Italy
| | - Agnese Meterangelis
- Unit of Nephrology and Dialysis, Policlinico San Pietro, Ponte San Pietro, Bergamo, Italy
| | - Antonio Granata
- Unit of Nephrology and Dialysis, Azienda Ospedaliera per l'Emergenza “Cannizzaro,” Catania, Italy
| | - Emanuele Mambelli
- Unit of Nephrology, Dialysis and Hypertension, Azienda Ospedaliero-Universitaria di Bologna Policlinico S. Orsola-Malpighi, Bologna, Italy
| | - Sonia Pasquali
- Unit of Nephrology and Dialysis, Arcispedale Santa Maria Nuova, Reggio Emilia, Italy
| | - Simonetta Genovesi
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Monza, Ospedale San Gerardo, Monza, Italy,Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
| | - Federico Pieruzzi
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Monza, Ospedale San Gerardo, Monza, Italy,Department of Medicine and Surgery, University of Milano-Bicocca, Milano, Italy
| | - Silvio Volmer Bertoli
- Unit of Nephrology and Dialysis, Istituto di Ricovero e Cura a Carattere Scientifico MultiMedica, Sesto San Giovanni, Milano, Italy
| | - Goffredo Del Rosso
- Unit of Nephrology and Dialysis, Ospedale Giuseppe Mazzini, Teramo, Italy
| | - Maurizio Garozzo
- Unit of Nephrology and Dialysis, Presidio Ospedaliero S. Marta e S. Venera, Acireale, Catania, Italy
| | - Angelo Rigotti
- Unit of Nephrology and Dialysis, Ospedale Infermi, Rimini, Italy
| | - Claudio Pozzi
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Nord Milano-Ospedale Bassini, Cinisello Balsamo, Milano, Italy
| | - Salvatore David
- Department of Nephrology and Dialysis, Azienda Ospedaliero-Universitaria di Parma, Parma, Italy
| | - Giuseppe Daidone
- Unit of Nephrology and Dialysis, Ospedale Umberto I, Siracusa, Italy
| | - Giulio Mingardi
- Unit of Nephrology and Dialysis, Humanitas Gavazzeni, Bergamo, Italy
| | - Giovanni Mosconi
- Unit of Nephrology and Dialysis, Ospedale “Morgagni-Pierantoni,” Forlì, Italy
| | - Andrea Galfré
- Unit of Nephrology and Dialysis, Azienda Sanitaria Locale 8, Cagliari, Italy
| | - Giorgio Romei Longhena
- Unit of Nephrology and Dialysis, Azienda Socio-Sanitaria Territoriale Rhodense-Ospedale Garbagnate Milanese, Milano, Italy
| | - Alfonso Pacitti
- Unit of Nephrology and Dialysis, Azienda Ospedaliera Santa Croce e Carle, Cuneo, Italy
| | - Antonello Pani
- Unit of Nephrology and Dialysis, Department of Reproduction, Genitourinary and Kidney Disease and Kidney Transplantation, Azienda Ospedaliera Brotzu, Cagliari, Italy
| | - Jorge Hidalgo Godoy
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy,Institute of Medicine, Universidad Austral de Chile, Valdivia, Chile
| | - Hans-Joachim Anders
- Division of Nephrology, Department of Medicine IV, University Hospital, Ludwig Maximilians Universität Munich, Munich, Germany
| | - Giuseppe Remuzzi
- Department of Renal Medicine, Clinical Research Centre for Rare Diseases “Aldo e Cele Daccò”, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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Perico L, Tomasoni S, Peracchi T, Perna A, Pezzotta A, Remuzzi G, Benigni A. COVID-19 and lombardy: TESTing the impact of the first wave of the pandemic. EBioMedicine 2020; 61:103069. [PMID: 33130396 PMCID: PMC7581396 DOI: 10.1016/j.ebiom.2020.103069] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/25/2020] [Accepted: 09/28/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Italy was the first western country to experience a large Coronavirus Disease 2019 (COVID-19) outbreak and the province of Bergamo experienced one of the deadliest COVID-19 outbreaks in the world. Following the peak of the epidemic in mid-March, the curve has slowly fallen thanks to the strict lockdown imposed by the Italian government on 9th March 2020. METHODS We performed a cross-sectional study to assess the prevalence of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) infection in 423 workers in Bergamo province who returned to the workplace after the end of the Italian lockdown on 5th May 2020. To this end, we performed an enzyme-linked immunosorbent assay (ELISA) to detect the humoral response against SARS-CoV-2 and a nasopharyngeal swab to assess the presence of SARS-CoV-2 RNA by real-time reverse transcription polymerase chain reaction (rRT-PCR). As a secondary aim of the study, we validated a lateral flow immunochromatography assay (LFIA) for the detection of anti-SARS-CoV-2 antibodies. FINDINGS ELISA identified 38.5% positive subjects, of whom 51.5% were positive for both IgG and IgM, 47.3% were positive only for IgG, but only 1.2% were positive for IgM alone. Only 23 (5.4%) participants tested positive for SARS-CoV-2 by rRT-PCR, although with high cycle thresholds (between 34 and 39), indicating a very low residual viral load that was not able to infect cultured cells. All these rRT-PCR positive subjects had already experienced seroconversion. When the ELISA was used as the comparator, the estimated specificity and sensitivity of the rapid LFIA for IgG were 98% and 92%, respectively. INTERPRETATION the prevalence of SARS-CoV-2 infection in the province of Bergamo reached 38.5%, significantly higher than has been reported for most other regions worldwide. Few nasopharyngeal swabs tested positive in fully recovered subjects, though with a very low SARS-CoV-2 viral load, with implications for infectivity and discharge policies for positive individuals in the post-pandemic period. The rapid LFIA used in this study is a valuable tool for rapid serologic surveillance of COVID-19 for population studies. FUNDING The study was supported by Regione Lombardia, Milano Serravalle - Milano Tangenziali S.p.A., Brembo S.p.A, and by MEI System.
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Affiliation(s)
- Luca Perico
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Susanna Tomasoni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Tobia Peracchi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Annalisa Perna
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Anna Pezzotta
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
| | - Giuseppe Remuzzi
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy; Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy.
| | - Ariela Benigni
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Bergamo, Italy
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