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Vlaar APJ, Witzenrath M, van Paassen P, Heunks LMA, Mourvillier B, de Bruin S, Lim EHT, Brouwer MC, Tuinman PR, Saraiva JFK, Marx G, Lobo SM, Boldo R, Simon-Campos JA, Cornet AD, Grebenyuk A, Engelbrecht JM, Mukansi M, Jorens PG, Zerbib R, Rückinger S, Pilz K, Guo R, van de Beek D, Riedemann NC, Witzenrath M, van Paassen P, Heunks LM, Mourvillier B, de Bruin S, Lim EH, Brouwer MC, Tuinman PR, Saraiva JFK, Marx G, Lobo S, Boldo R, Simon-Campos J, Cornet AD, Grebenyuk A, Engelbrecht J, Mukansi M, Jorens PG, Zerbib R, Rückinger S, Pilz K, Guo R, van de Beek D, Riedemann NC, Bulpa P, Taccone FS, Hermans G, Diltoer M, Piagnerelli M, De Neve N, Freire AT, Pizzol FD, Marinho AK, Sato VH, Arns da Cunha C, Neuville M, Dellamonica J, Annane D, Roquilly A, Diehl JL, Schneider F, Mira JP, Lascarrou JB, Desmedt L, Dupuis C, Schwebel C, Thiéry G, Gründling M, Berger M, Welte T, Bauer M, Jaschinski U, Matschke K, Mercado-Longoria R, Gomez Quintana B, Zamudio-Lerma JA, Moreno Hoyos Abril J, Aleman Marquez A, Pickkers P, Otterspoor L, Hercilla Vásquez L, Seas Ramos CR, Peña Villalobos A, Gianella Malca G, Chávez V, Filimonov V, Kulabukhov V, Acharya P, Timmermans SA, Busch MH, van Baarle FL, Koning R, ter Horst L, Chekrouni N, van Soest TM, Slim MA, van Vught LA, van Amstel RB, Olie SE, van Zeggeren IE, van de Poll MC, Thielert C, Neukirchen D. Anti-C5a antibody (vilobelimab) therapy for critically ill, invasively mechanically ventilated patients with COVID-19 (PANAMO): a multicentre, double-blind, randomised, placebo-controlled, phase 3 trial. Lancet Respir Med 2022; 10:1137-1146. [PMID: 36087611 PMCID: PMC9451499 DOI: 10.1016/s2213-2600(22)00297-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/29/2022] [Accepted: 08/03/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Vilobelimab, an anti-C5a monoclonal antibody, was shown to be safe in a phase 2 trial of invasively mechanically ventilated patients with COVID-19. Here, we aimed to determine whether vilobelimab in addition to standard of care improves survival outcomes in this patient population. METHODS This randomised, double-blind, placebo-controlled, multicentre phase 3 trial was performed at 46 hospitals in the Netherlands, Germany, France, Belgium, Russia, Brazil, Peru, Mexico, and South Africa. Participants aged 18 years or older who were receiving invasive mechanical ventilation, but not more than 48 h after intubation at time of first infusion, had a PaO2/FiO2 ratio of 60-200 mm Hg, and a confirmed SARS-CoV-2 infection with any variant in the past 14 days were eligible for this study. Eligible patients were randomly assigned (1:1) to receive standard of care and vilobelimab at a dose of 800 mg intravenously for a maximum of six doses (days 1, 2, 4, 8, 15, and 22) or standard of care and a matching placebo using permuted block randomisation. Treatment was not continued after hospital discharge. Participants, caregivers, and assessors were masked to group assignment. The primary outcome was defined as all-cause mortality at 28 days in the full analysis set (defined as all randomly assigned participants regardless of whether a patient started treatment, excluding patients randomly assigned in error) and measured using Kaplan-Meier analysis. Safety analyses included all patients who had received at least one infusion of either vilobelimab or placebo. This study is registered with ClinicalTrials.gov, NCT04333420. FINDINGS From Oct 1, 2020, to Oct 4, 2021, we included 368 patients in the ITT analysis (full analysis set; 177 in the vilobelimab group and 191 in the placebo group). One patient in the vilobelimab group was excluded from the primary analysis due to random assignment in error without treatment. At least one dose of study treatment was given to 364 (99%) patients (safety analysis set). 54 patients (31%) of 177 in the vilobelimab group and 77 patients (40%) of 191 in the placebo group died in the first 28 days. The all-cause mortality rate at 28 days was 32% (95% CI 25-39) in the vilobelimab group and 42% (35-49) in the placebo group (hazard ratio 0·73, 95% CI 0·50-1·06; p=0·094). In the predefined analysis without site-stratification, vilobelimab significantly reduced all-cause mortality at 28 days (HR 0·67, 95% CI 0·48-0·96; p=0·027). The most common TEAEs were acute kidney injury (35 [20%] of 175 in the vilobelimab group vs 40 [21%] of 189 in the placebo), pneumonia (38 [22%] vs 26 [14%]), and septic shock (24 [14%] vs 31 [16%]). Serious treatment-emergent adverse events were reported in 103 (59%) of 175 patients in the vilobelimab group versus 120 (63%) of 189 in the placebo group. INTERPRETATION In addition to standard of care, vilobelimab improves survival of invasive mechanically ventilated patients with COVID-19 and leads to a significant decrease in mortality. Vilobelimab could be considered as an additional therapy for patients in this setting and further research is needed on the role of vilobelimab and C5a in other acute respiratory distress syndrome-causing viral infections. FUNDING InflaRx and the German Federal Government.
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Affiliation(s)
- Alexander P J Vlaar
- Department of Intensive Care, Amsterdam UMC, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, Netherlands,Prof Alexander P J Vlaar, Department of Intensive Care, University of Amsterdam, Amsterdam UMC, 1100DD Amsterdam, Netherlands
| | - Martin Witzenrath
- Department of Infectious Diseases and Respiratory Medicine, Charité-Universitätsmedizin Berlin, German Center for Lung Research, Berlin, Germany
| | | | - Leo M A Heunks
- Department of Intensive Care, Amsterdam UMC, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, Netherlands
| | - Bruno Mourvillier
- Medical Intensive Care Unit, University Hospital of Reims, Reims, France
| | - Sanne de Bruin
- Department of Intensive Care, Amsterdam UMC, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, Netherlands
| | - Endry H T Lim
- Department of Intensive Care, Amsterdam UMC, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, Netherlands
| | - Matthijs C Brouwer
- Department of Neurology, Amsterdam UMC, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, Netherlands
| | - Pieter R Tuinman
- Department of Intensive Care, Amsterdam UMC, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, Netherlands
| | | | - Gernot Marx
- Uniklinik RWTH Aachen, Klinik für Operative Intensivmedizin und Intermediate Care, Aachen, Germany
| | | | - Rodrigo Boldo
- Associação Educadora São Carlos, Hospital Mãe de Deus, Centro de Pesquisa, Porto Alegre, Brazil
| | | | | | | | | | - Murimisi Mukansi
- Helen Joseph Hospital, University of the Witwatersrand, Johannesburg, South Africa
| | | | | | | | | | | | - Diederik van de Beek
- Department of Neurology, Amsterdam UMC, Amsterdam Neuroscience, University of Amsterdam, Amsterdam, Netherlands
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Olie SE, van Zeggeren IE, ter Horst L, Citroen J, van Geel BM, Heckenberg SGB, Jellema K, Kester MI, Killestein J, Mook BB, Titulaer MJ, van Veen KEB, Verschuur CVM, van de Beek D, Brouwer MC. Seizures in adults with suspected central nervous system infection. BMC Neurol 2022; 22:426. [PMID: 36376810 PMCID: PMC9661800 DOI: 10.1186/s12883-022-02927-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background Seizures can be part of the clinical presentation of central nervous system (CNS) infections. We describe patients suspected of a neurological infection who present with a seizure and study diagnostic accuracy of clinical and laboratory features predictive of CNS infection in this population. Methods We analyzed all consecutive patients presenting with a seizure from two prospective Dutch cohort studies, in which patients were included who underwent cerebrospinal fluid (CSF) examination because of the suspicion of a CNS infection. Results Of 900 episodes of suspected CNS infection, 124 (14%) presented with a seizure. The median age in these 124 episodes was 60 years (IQR 45–71) and 53% of patients was female. CSF examination showed a leukocyte count ≥ 5/mm3 in 41% of episodes. A CNS infection was diagnosed in 27 of 124 episodes (22%), a CNS inflammatory disorder in 8 (6%) episodes, a systemic infection in 10 (8%), other neurological disease in 77 (62%) and in 2 (2%) episodes another systemic disease was diagnosed. Diagnostic accuracy of clinical and laboratory characteristics for the diagnosis of CNS infection in this population was low. CSF leukocyte count was the best predictor for CNS infection in patients with suspected CNS infection presenting with a seizure (area under the curve 0.94, [95% CI 0.88 – 1.00]). Conclusions Clinical and laboratory features fail to distinguish CNS infections from other causes of seizures in patients with a suspected CNS infection. CSF leukocyte count is the best predictor for the diagnosis of CNS infection in this population.
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ter Horst L, Brouwer MC, van der Ende A, van de Beek D. Recurrent Community-Acquired Bacterial Meningitis in Adults. Clin Infect Dis 2021; 73:e2545-e2551. [PMID: 33751028 PMCID: PMC8563215 DOI: 10.1093/cid/ciaa1623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/17/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Recurrent bacterial meningitis has been found to occur in about 5% of meningitis cases. METHODS We analyzed adults with recurrent episodes in a prospective nationwide cohort study of community-acquired bacterial meningitis. RESULTS Of 2264 episodes of community-acquired bacterial meningitis between 2006 and 2018, 143 (6%) were identified as recurrent episodes in 123 patients. The median age was 57 years (interquartile range [IQR], 43-66), and 57 episodes (46%) occurred in men. The median duration between the first and the current episode was 5 years (IQR, 1-15). For 82 of 123 patients (67%), it was the first recurrent episode, 31 patients had 2-5 previous episodes (25%), 2 had 6-10 episodes (2%), and 2 had >10 episodes (2%). Predisposing factors were identified in 87 of 118 patients (74%) and most commonly consisted of ear or sinus infections (43 of 120, 36%) and cerebrospinal fluid leakage (37 of 116, 32%). The most common pathogens were Streptococcus pneumoniae (93 of 143, 65%) and Haemophilus influenzae (19 of 143, 13%). The outcome was unfavorable (Glasgow outcome scale score, <5) in 24 episodes with recurrent meningitis (17%) vs 810 for nonrecurrent meningitis patients (39%, P < .001). Six of 143 died (4%) vs 362 of 2095 patients (17%, P < .001). CONCLUSIONS Recurrent meningitis occurs mainly in patients with ear or sinus infections and cerebrospinal fluid leakage. Predominant causative pathogens are S. pneumoniae and H. influenzae. The disease course is less severe, resulting in lower case fatality compared with nonrecurrent meningitis patients.
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Affiliation(s)
- Liora ter Horst
- Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands; Amsterdam University Medical Centers, University of Amsterdam
| | - Matthijs C Brouwer
- Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands; Amsterdam University Medical Centers, University of Amsterdam
| | - Arie van der Ende
- Amsterdam University Medical Centers, University of Amsterdam, Department of Medical Microbiology and Infection Prevention, Amsterdam Infection and Immunity, Meibergdreef, Amsterdam, The Netherlands
- Amsterdam University Medical Centers, University of Amsterdam, Netherlands Reference Laboratory for Bacterial Meningitis, Amsterdam, The Netherlands
| | - Diederik van de Beek
- Amsterdam UMC, University of Amsterdam, Department of Neurology, Amsterdam Neuroscience, Meibergdreef, Amsterdam, The Netherlands; Amsterdam University Medical Centers, University of Amsterdam
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