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Fiaschi L, Biba C, Varasi I, Bartolini N, Paletti C, Giammarino F, Saladini F, Zazzi M, Vicenti I. In Vitro Combinatorial Activity of Direct Acting Antivirals and Monoclonal Antibodies against the Ancestral B.1 and BQ.1.1 SARS-CoV-2 Viral Variants. Viruses 2024; 16:168. [PMID: 38399944 PMCID: PMC10892871 DOI: 10.3390/v16020168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 02/25/2024] Open
Abstract
Combination antiviral therapy may be helpful in the treatment of SARS-CoV-2 infection; however, no clinical trial data are available, and combined use of direct-acting antivirals (DAA) and monoclonal antibodies (mAb) has been reported only anecdotally. To assess the cooperative effects of dual drug combinations in vitro, we used a VERO E6 cell-based in vitro system with the ancestral B.1 or the highly divergent BQ.1.1 virus to test pairwise combinations of the licensed DAA, including nirmatrelvir (NRM), remdesivir (RDV) and the active metabolite of molnupiravir (EIDD-1931) as well the combination of RDV with four licensed mAbs (sotrovimab, bebtelovimab, cilgavimab, tixagevimab; tested only with the susceptible B.1 virus). According to SynergyFinder 3.0 summary and weighted scores, all the combinations had an additive effect. Within DAA/DAA combinations, paired scores with the B.1 and BQ.1.1 variants were comparable. In the post hoc analysis weighting synergy by concentrations, several cases of highly synergistic scores were detected at specific drug concentrations, both for DAA/DAA and for RDV/mAb combinations. This was supported by in vitro confirmation experiments showing a more than a linear shift of a drug-effective concentration (IC50) at increasing concentrations of the companion drug, although the effect was prominent with DAA/DAA combinations and minimal or null with RDV/mAb combinations. These results support the cooperative effects of dual drug combinations in vitro, which should be further investigated in animal models before introduction into the clinic.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Ilaria Vicenti
- Department of Medical Biotechnologies, University of Siena, 53100 Siena, Italy; (L.F.); (C.B.); (I.V.); (N.B.); (C.P.); (F.G.); (F.S.); (M.Z.)
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Fraga A, Mósca AF, Moita D, Simas JP, Nunes-Cabaço H, Prudêncio M. SARS-CoV-2 decreases malaria severity in co-infected rodent models. Front Cell Infect Microbiol 2023; 13:1307553. [PMID: 38156320 PMCID: PMC10753813 DOI: 10.3389/fcimb.2023.1307553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 11/27/2023] [Indexed: 12/30/2023] Open
Abstract
Coronavirus disease 2019 (COVID-19) and malaria, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and Plasmodium parasites, respectively, share geographical distribution in regions where the latter disease is endemic, leading to the emergence of co-infections between the two pathogens. Thus far, epidemiologic studies and case reports have yielded insufficient data on the reciprocal impact of the two pathogens on either infection and related diseases. We established novel co-infection models to address this issue experimentally, employing either human angiotensin-converting enzyme 2 (hACE2)-expressing or wild-type mice, in combination with human- or mouse-infective variants of SARS-CoV-2, and the P. berghei rodent malaria parasite. We now show that a primary infection by a viral variant that causes a severe disease phenotype partially impairs a subsequent liver infection by the malaria parasite. Additionally, exposure to an attenuated viral variant modulates subsequent immune responses and provides protection from severe malaria-associated outcomes when a blood stage P. berghei infection was established. Our findings unveil a hitherto unknown host-mediated virus-parasite interaction that could have relevant implications for disease management and control in malaria-endemic regions. This work may contribute to the development of other models of concomitant infection between Plasmodium and respiratory viruses, expediting further research on co-infections that lead to complex disease presentations.
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Affiliation(s)
- Ana Fraga
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Andreia F. Mósca
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Diana Moita
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - J. Pedro Simas
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
- Católica Biomedical Research, Católica Medical School, Universidade Católica Portuguesa, Lisboa, Portugal
| | - Helena Nunes-Cabaço
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Miguel Prudêncio
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
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Kolla E, Weill A, Zaidan M, De Martin E, Colin De Verdiere S, Semenzato L, Zureik M, Grimaldi L. COVID-19 Hospitalization in Solid Organ Transplant Recipients on Immunosuppressive Therapy. JAMA Netw Open 2023; 6:e2342006. [PMID: 37934496 PMCID: PMC10630896 DOI: 10.1001/jamanetworkopen.2023.42006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/25/2023] [Indexed: 11/08/2023] Open
Abstract
Importance Solid organ transplant recipients are at high risk of severe infection with SARS-CoV-2 compared with the general population. However, factors associated with COVID-19-related severity in this population are still insufficiently explored in the literature. Objective To examine which health conditions and immunosuppressive drugs for preventing graft rejection are associated with the risk of COVID-19-related hospitalization in solid organ transplant recipients. Design, Setting, and Participants Using the French National Health Data System, this cohort study assessed patients of any age who received transplants between their date of birth and entry into the cohort on February 15, 2020. The cohort was followed up between February 15, 2020, and July 31, 2022. Exposures Immunosuppressive drugs, including steroids, and health conditions (age, sex, and comorbidities). Main Outcomes and Measures The main outcome was hospitalization for COVID-19, defined by main diagnostic International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10) codes. Factors associated with the outcome were identified with a nonconditional logistic regression. Confounding by indication was controlled using a multivariable model with adjustment for individual confounders. Each transplanted organ was examined separately. Results Overall, 60 456 participants (median [IQR] age, 59 [47-67] years; 63.7% male) were included in the study, of whom 41 463 (68.6%) had kidney transplants, 14 464 (23.9%) had liver transplants, 5327 (8.8%) had heart transplants, and 2823 (4.6%) had lung transplants. Among them, 12.7% of kidney transplant recipients, 6.4% of liver transplant recipients, 12.9% of heart transplant recipients, and 18.0% of lung transplant recipients were hospitalized for COVID-19. In kidney transplant recipients, steroids (adjusted odds ratio [AOR], 1.60; 95% CI, 1.49-1.73) and mycophenolic acid (AOR, 1.37; 95% CI, 1.25-1.51) were associated with a high risk of hospitalization. In liver transplant recipients, tacrolimus (AOR, 0.77; 95% CI, 0.61-0.98) was associated with a decreased risk, and steroids (AOR, 1.60; 95% CI, 1.38-1.86) and mycophenolic acid (AOR, 1.61; 95% CI, 1.37-1.90) were associated with an increased risk of hospitalizations. In heart transplant recipients, cyclosporine (AOR, 0.67; 95% CI, 0.47-0.94) was associated with a decreased risk, and steroids (AOR, 1.42; 95% CI, 1.11-1.82), mycophenolic acid (AOR, 1.29; 95% CI, 1.02-1.64), sirolimus (AOR, 2.71; 95% CI, 1.20-6.09), and everolimus (AOR, 1.24; 95% CI, 1.01-1.51) were associated with an increased risk of hospitalization. Only steroids (AOR, 1.72; 95% CI, 1.19-2.48) were associated with a high risk of COVID-19 hospitalization in lung transplant recipients. Conclusions and Relevance This study suggests that mycophenolic acid, sirolimus, and steroids are associated with an increased risk of COVID-19-related hospitalization in solid organ transplant recipients. These results should be considered by clinicians treating transplant recipients and may help inform epidemic-related decisions for this population in the future.
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Affiliation(s)
- Epiphane Kolla
- EPI-PHARE, Scientific Interest Group in Epidemiology of Health Products, French National Agency for the Safety of Medicines and Health Products, French National Health Insurance, Saint-Denis, France
- Anti-Infective Evasion and Pharmacoepidemiology Team, INSERM UMR1018, School of Medicine Simone Veil, University Versailles Saint-Quentin-en-Yvelines, Paris-Saclay University, Montigny-Le-Bretonneux, France
| | - Alain Weill
- EPI-PHARE, Scientific Interest Group in Epidemiology of Health Products, French National Agency for the Safety of Medicines and Health Products, French National Health Insurance, Saint-Denis, France
| | - Mohamad Zaidan
- Department of Nephrology-Dialysis-Transplantation, Bicêtre University Hospital, Assistance Publique–Hôpitaux de Paris, Paris-Saclay University, Le Kremlin-Bicêtre, France
| | - Eleonora De Martin
- Assistance Publique–Hôpitaux de Paris, Hepato-Biliary Centre, Paul Brousse Hospital, Unit INSERM 1193, Villejuif, France
| | - Sylvie Colin De Verdiere
- Departement of Lung Transplantation and Mucoviscidose Reference Centre, Foch Hospital, Suresnes, France
| | - Laura Semenzato
- EPI-PHARE, Scientific Interest Group in Epidemiology of Health Products, French National Agency for the Safety of Medicines and Health Products, French National Health Insurance, Saint-Denis, France
| | - Mahmoud Zureik
- EPI-PHARE, Scientific Interest Group in Epidemiology of Health Products, French National Agency for the Safety of Medicines and Health Products, French National Health Insurance, Saint-Denis, France
- Anti-Infective Evasion and Pharmacoepidemiology Team, INSERM UMR1018, School of Medicine Simone Veil, University Versailles Saint-Quentin-en-Yvelines, Paris-Saclay University, Montigny-Le-Bretonneux, France
| | - Lamiae Grimaldi
- Anti-Infective Evasion and Pharmacoepidemiology Team, INSERM UMR1018, School of Medicine Simone Veil, University Versailles Saint-Quentin-en-Yvelines, Paris-Saclay University, Montigny-Le-Bretonneux, France
- Clinical Research Unit, Université Paris-Saclay, Direction of Clinical Research, Assistance Publique–Hôpitaux de Paris, Paris, France
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Semenzato L, Botton J, Le Vu S, Jabagi MJ, Cuenot F, Drouin J, Dray-Spira R, Weill A, Zureik M. Protection of COVID-19 Vaccination Against Hospitalization During the Era of Omicron BA.4 and BA.5 Predominance: A Nationwide Case-Control Study Based on the French National Health Data System. Open Forum Infect Dis 2023; 10:ofad460. [PMID: 37808897 PMCID: PMC10551849 DOI: 10.1093/ofid/ofad460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 09/06/2023] [Indexed: 10/10/2023] Open
Abstract
Background Knowing the duration of effectiveness of coronavirus disease 2019 (COVID-19) booster doses is essential to providing decision-makers with scientific arguments about the frequency of subsequent injections. We estimated the level of protection against COVID-19-related hospitalizations (Omicron BA.4-BA.5) over time after vaccination, accounting for breakthrough infections. Methods In this nationwide case-control study, all cases of hospitalizations for COVID-19 identified in the comprehensive French National Health Data System between June 1, 2022, and October 15, 2022, were matched with up to 10 controls by year of birth, sex, department, and an individual COVID-19 hospitalization risk score. Conditional logistic regressions were used to estimate the level of protection against COVID-19-related hospitalizations conferred by primary and booster vaccination, accounting for history of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Results A total of 38 839 cases were matched to 377 653 controls; 19.2% and 9.9% were unvaccinated, respectively, while 68.2% and 77.7% had received ≥1 booster dose. Protection provided by primary vaccination reached 45% (95% CI, 42%-47%). The incremental effectiveness of booster doses ranged from 69% (95% CI, 67%-71%; ≤2 months) to 22% (95% CI, 19%-25%; ≥6 months). Specifically, the second booster provided an additional protection compared with the first ranging from 61% (95% CI, 59%-64%; ≤2 months) to 7% (95% CI, 2%-13%; ≥4 months). Previous SARS-CoV-2 infection conferred a strong, long-lasting protection (51% ≥20 months). There was no incremental effectiveness of a second booster among individuals infected since the first booster. Conclusions In the era of Omicron BA.4 and BA.5 predominance, primary vaccination still conferred protection against COVID-19 hospitalization, while booster doses provided an additional time-limited protection. The second booster had no additional protection in case of infection since the first booster.
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Affiliation(s)
- Laura Semenzato
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
| | - Jérémie Botton
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
- Faculty of Pharmacy, Paris-Saclay University, Orsay, France
| | - Stéphane Le Vu
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
| | - Marie-Joëlle Jabagi
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
| | - François Cuenot
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
| | - Jérôme Drouin
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
| | - Rosemary Dray-Spira
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
| | - Alain Weill
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
| | - Mahmoud Zureik
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, Saint-Denis, France
- Paris-Saclay University, UVSQ, Paris-Sud University, Inserm, Anti-infective Evasion and Pharmacoepidemiology Unit/Team, CESP, Montigny le Bretonneux, France
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Zureik M, Cuenot F, Weill A, Dray-Spira R. Contribution of real-life studies in France during the COVID-19 pandemic and for the national pharmaco-epidemiological surveillance of COVID-19 vaccines. Therapie 2023; 78:553-557. [PMID: 36739224 PMCID: PMC9851737 DOI: 10.1016/j.therap.2022.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 12/08/2022] [Indexed: 01/21/2023]
Abstract
During the COVID-19 pandemic, EPI-PHARE, a scientific group in pharmaco-epidemiology created by the French National Agency for the Safety of Medicines and Health Products (ANSM) and the French National Health Insurance (Cnam), has reoriented its work program to enlighten health authorities in this health crisis. By exploiting massive and complex data of the French Health Data System (SNDS) from the beginning of the first lockdown in France in March 2020, we were able to publish numerous results on the use, benefits and risks of medicines, on the risk factors of COVID-19 before and after vaccination, and on the benefits and risks of COVID-19 vaccines. Our results were widely taken into account by the French health authorities and allowed them to take informed decision in this pandemic situation in order to ensure the health of the population.
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Affiliation(s)
- Mahmoud Zureik
- EPI-PHARE, Epidemiology of Health Products (French National Agency for Medicines and Health Products Safety, and French National Health Insurance), Saint-Denis cedex, France; University of Paris-Saclay, UVSQ, University Paris-Sud, Inserm, Anti-Infective Evasion and Pharmaco-epidemiology, CESP (Center for Research in Epidemiology and Population Health), 78180 Montigny le Bretonneux, France.
| | - François Cuenot
- EPI-PHARE, Epidemiology of Health Products (French National Agency for Medicines and Health Products Safety, and French National Health Insurance), Saint-Denis cedex, France
| | - Alain Weill
- EPI-PHARE, Epidemiology of Health Products (French National Agency for Medicines and Health Products Safety, and French National Health Insurance), Saint-Denis cedex, France
| | - Rosemary Dray-Spira
- EPI-PHARE, Epidemiology of Health Products (French National Agency for Medicines and Health Products Safety, and French National Health Insurance), Saint-Denis cedex, France
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Rouphael N, Bausch-Jurken M. COVID-19 Vaccination Among Patients Receiving Maintenance Renal Replacement Therapy: Immune Response, Real-World Effectiveness, and Implications for the Future. J Infect Dis 2023; 228:S46-S54. [PMID: 37539761 PMCID: PMC10401621 DOI: 10.1093/infdis/jiad162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023] Open
Abstract
Chronic kidney disease affects more than 800 million people worldwide and often progresses to end-stage renal disease, which requires maintenance dialysis. Patients receiving dialysis are at higher risk for severe respiratory infections, including SARS-CoV-2 (the causative agent of COVID-19). In addition, many patients who receive dialysis also receive immunosuppressive treatments for conditions such as systemic vasculitis, systemic lupus erythematosus, or malignancies. Many studies have shown that while mRNA COVID-19 vaccines induce some level of immune response in patients receiving dialysis, the magnitude of response is often lower than that of healthy individuals, and responses rapidly wane. Importantly, the risk of COVID-19-related hospitalization and mortality for patients receiving dialysis is 4- to 8-fold higher compared with the general population. In this article, we summarize recent immunogenicity and real-world outcomes of COVID-19 mRNA vaccination among patients receiving dialysis, with a focus on the 3-dose extended primary series and additional (fourth) doses.
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Affiliation(s)
- Nadine Rouphael
- Correspondence: Nadine Rouphael, MD, Division of Infectious Diseases, Emory University School of Medicine, 2015 Uppergate Dr, Atlanta, GA 30307, USA (); Mary Bausch-Jurken, PhD, Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA ()
| | - Mary Bausch-Jurken
- Correspondence: Nadine Rouphael, MD, Division of Infectious Diseases, Emory University School of Medicine, 2015 Uppergate Dr, Atlanta, GA 30307, USA (); Mary Bausch-Jurken, PhD, Moderna, Inc., 200 Technology Square, Cambridge, MA 02139, USA ()
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Dugerdil A, Semenzato L, Weill A, Zureik M, Flahault A. Severe SARS-CoV-2 infection as a marker of undiagnosed cancer: a population-based study. Sci Rep 2023; 13:8729. [PMID: 37253848 PMCID: PMC10227779 DOI: 10.1038/s41598-023-36013-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 05/27/2023] [Indexed: 06/01/2023] Open
Abstract
No study has yet investigated if a severe SARS-CoV-2 infection represents a marker of an undiagnosed cancer. This population-based study, using the SNDS database, identified from 02/15/2020 to 08/31/2021, 41,302 individuals hospitalized in intensive care unit due to SARS-CoV-2 (ICU-gr) and 713,670 control individuals not hospitalized for SARS-CoV-2 (C-gr). Individuals were matched according to year of birth, sex and French department. The cancer incidence was compared in the two groups during the follow-up period (index date-12/31/2021), using Cox proportional hazards models adjusted on matching variables, socioeconomic characteristics and comorbidities. In the ICU-gr, 2.2% (n = 897) was diagnosed with a cancer in the following months, compared to 1.5% (n = 10,944) in the C-gr. The ICU-gr had a 1.31 higher risk of being diagnosed with a cancer following hospital discharge compared to the C-gr (aHR 1.31, 95% CI 1.22-1.41). A global similar trend was found when competing risk of death was taken into account (aHR 1.25, 95% CI 1.16-1.34). A significant higher risk was found concerning renal (aHR 3.16, 95% CI 2.33-4.27), hematological (aHR 2.54, 95% CI 2.07-3.12), colon (aHR 1.72, 95% CI 1.34-2.21), and lung (aHR 1.70, 95% CI 1.39-2.08) cancers. This suggests that a severe SARS-CoV-2 infection may represent a marker of an undiagnosed cancer.
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Affiliation(s)
- Adeline Dugerdil
- Institute of Global Health, Faculty of Medicine, University of Geneva, Campus Biotech, Chemin des Mines 9, 1202, Geneva, Switzerland.
| | - Laura Semenzato
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, 93285, Saint-Denis Cedex, France
| | - Alain Weill
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, 93285, Saint-Denis Cedex, France
| | - Mahmoud Zureik
- EPI-PHARE Scientific Interest Group in Epidemiology of Health Products from the French National Agency for the Safety of Medicines and Health Products and the French National Health Insurance, 93285, Saint-Denis Cedex, France
| | - Antoine Flahault
- Institute of Global Health, Faculty of Medicine, University of Geneva, Campus Biotech, Chemin des Mines 9, 1202, Geneva, Switzerland
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Mathieu C, Bezin J, Pariente A. Impact of COVID-19 epidemic on antihypertensive drug treatment disruptions: results from a nationwide interrupted time-series analysis. Front Pharmacol 2023; 14:1129244. [PMID: 37256233 PMCID: PMC10225585 DOI: 10.3389/fphar.2023.1129244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/27/2023] [Indexed: 06/01/2023] Open
Abstract
Background: The COVID-19 epidemic has disrupted care and access to care in many ways. It was accompanied by an excess of cardiovascular drug treatment discontinuations. We sought to investigate a deeper potential impact of the COVID-19 epidemic on antihypertensive drug treatment disruptions by assessing whether the epidemic induced some changes in the characteristics of disruptions in terms of duration, treatment outcome, and patient characteristics. Methods: From March 2018 to February 2021, a repeated cohort analysis was performed using French national health insurance databases. The impact of the epidemic on treatment discontinuations and resumption of antihypertensive medications was assessed using preformed interrupted time series analyses either on a quarterly basis. Results: Among all adult patients on antihypertensive medication, we identified 2,318,844 (18.7%) who discontinued their antihypertensive treatment during the first blocking period in France. No differences were observed between periods in the characteristics of patients who interrupted their treatment or in the duration of treatment disruptions. The COVID-19 epidemic was not accompanied by a change in the proportion of patients who fully resumed treatment after a disruption, neither in level nor in trend/slope [change in level: 2.66 (-0.11; 5.42); change in slope: -0.67 (-1.54; 0.20)]. Results were similar for the proportion of patients who permanently discontinued treatment within 1 year of disruption [level change: -0.21 (-2.08; 1.65); slope change: 0.24 (-0.40; 0.87)]. Conclusion: This study showed that, although it led to an increase in cardiovascular drug disruptions, the COVID-19 epidemic did not change the characteristics of these. First, disruptions were not prolonged, and post-disruption treatment outcomes remained unchanged. Second, patients who experienced antihypertensive drug disruptions during the COVID-19 outbreak were essentially similar to those who experienced disruptions before it.
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Affiliation(s)
- Clément Mathieu
- Inserm, Bordeaux Population Health Research Center, Team AHeaD, UMR 1219, University Bordeaux, Bordeaux, France
| | - Julien Bezin
- Inserm, Bordeaux Population Health Research Center, Team AHeaD, UMR 1219, University Bordeaux, Bordeaux, France
- CHU de Bordeaux, Service de Pharmacologie Médicale, Bordeaux, France
| | - Antoine Pariente
- Inserm, Bordeaux Population Health Research Center, Team AHeaD, UMR 1219, University Bordeaux, Bordeaux, France
- CHU de Bordeaux, Service de Pharmacologie Médicale, Bordeaux, France
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Buscot M, Cremoni M, Graça D, Brglez V, Courjon J, Allouche J, Teisseyre M, Boyer L, Barrière J, Chamorey E, Carles M, Seitz-Polski B. Breakthrough infections due to SARS-CoV-2 Delta variant: relation to humoral and cellular vaccine responses. Front Immunol 2023; 14:1145652. [PMID: 37063916 PMCID: PMC10101330 DOI: 10.3389/fimmu.2023.1145652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
IntroductionCOVID-19 vaccines are expected to provide effective protection. However, emerging strains can cause breakthrough infection in vaccinated individuals. The immune response of vaccinated individuals who have experienced breakthrough infection is still poorly understood.MethodsHere, we studied the humoral and cellular immune responses of fully vaccinated individuals who subsequently experienced breakthrough infection due to the Delta variant of SARS-CoV-2 and correlated them with the severity of the disease.ResultsIn this study, an effective humoral response alone was not sufficient to induce effective immune protection against severe breakthrough infection, which also required effective cell-mediated immunity to SARS-CoV-2. Patients who did not require oxygen had significantly higher specific (p=0.021) and nonspecific (p=0.004) cellular responses to SARS-CoV-2 at the onset of infection than those who progressed to a severe form.DiscussionKnowing both humoral and cellular immune response could allow to adapt preventive strategy, by better selecting patients who would benefit from additional vaccine boosters.Trial registration numbershttps://clinicaltrials.gov, identifier NCT04355351; https://clinicaltrials.gov, identifier NCT04429594.
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Affiliation(s)
- Matthieu Buscot
- Infectious Diseases Department, Nice University Hospital, Nice, France
| | - Marion Cremoni
- Immunology Laboratory, Archet 1 Hospital, Nice University Hospital, Nice, France
- Clinical Research Unit Côte d’Azur (UR2CA), Côte d’Azur University, Nice, France
| | - Daisy Graça
- Immunology Laboratory, Archet 1 Hospital, Nice University Hospital, Nice, France
| | - Vesna Brglez
- Immunology Laboratory, Archet 1 Hospital, Nice University Hospital, Nice, France
- Clinical Research Unit Côte d’Azur (UR2CA), Côte d’Azur University, Nice, France
| | - Johan Courjon
- Infectious Diseases Department, Nice University Hospital, Nice, France
- Mediterranean Center for Molecular Medicine (C3M), Côte d’Azur University, Nice, France
| | - Jonathan Allouche
- Clinical Research Unit Côte d’Azur (UR2CA), Côte d’Azur University, Nice, France
| | - Maxime Teisseyre
- Clinical Research Unit Côte d’Azur (UR2CA), Côte d’Azur University, Nice, France
| | - Laurent Boyer
- Mediterranean Center for Molecular Medicine (C3M), Côte d’Azur University, Nice, France
| | - Jérôme Barrière
- Department of Oncology, Clinique St Jean, Cagnes sur Mer, France
| | - Emmanuel Chamorey
- Department of Biostatistics, Centre Antoine Lacassagne, Nice, France
| | - Michel Carles
- Infectious Diseases Department, Nice University Hospital, Nice, France
| | - Barbara Seitz-Polski
- Immunology Laboratory, Archet 1 Hospital, Nice University Hospital, Nice, France
- Clinical Research Unit Côte d’Azur (UR2CA), Côte d’Azur University, Nice, France
- *Correspondence: Barbara Seitz-Polski,
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