Efficacy of innovative therapies in myasthenia gravis: A systematic review, meta‐analysis and network meta‐analysis
Background and purpose Therapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc receptor (FcRn) blockers. The aim of this study was to perform a meta‐analysis and network meta‐analysis of randomized and...
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| Veröffentlicht in: | European journal of neurology Jg. 30; H. 12; S. 3854 - 3867 |
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| Hauptverfasser: | , , , , |
| Format: | Journal Article |
| Sprache: | Englisch |
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England
John Wiley & Sons, Inc
01.12.2023
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| ISSN: | 1351-5101, 1468-1331, 1468-1331 |
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| Abstract | Background and purpose
Therapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc receptor (FcRn) blockers. The aim of this study was to perform a meta‐analysis and network meta‐analysis of randomized and placebo‐controlled trials of innovative therapies in MG with available efficacy data.
Methods
We assessed statistical heterogeneity across trials based on the Cochrane Q test and I2 values, and mean differences were pooled using the random‐effects model. Treatment efficacy was assessed after 26 weeks of eculizumab and ravulizumab, 28 days of efgartigimod, 43 days of rozanolixizumab, 12 weeks of zilucoplan, and 16, 24 or 52 weeks of rituximab treatment.
Results
We observed an overall mean Myasthenia Gravis‐Activities of Daily Living scale (MG‐ADL) score change of −2.17 points (95% confidence interval [CI] −2.67, −1.67; p < 0.001) as compared to placebo. No significant difference emerged between complement inhibitors and anti‐FcRn treatment (p = 0.16). The change in Quantitative Myasthenia Gravis scale (QMG) score was −3.46 (95% CI −4.53, −2.39; p < 0.001), with a higher reduction with FcRns (−4.78 vs. −2.60; p < 0.001). Rituximab did not significantly improve the MG‐ADL (−0.92 [95% CI −2.24, 0.39]; p = 0.17) or QMG scores (−1.9 [95% CI −3.97, 0.18]; p = 0.07). In the network meta‐analysis, efgartigimod had the highest probability of being the best treatment, followed by rozanolixizumab.
Conclusion
Anti‐complement and FcRn treatments both proved to be effective in MG patients, whereas rituximab did not show a significant benefit for patients. Within the limitations of this meta‐analysis, including efficacy time points, FcRn treatments showed a greater effect on QMG score in the short term. Real‐life studies with long‐term measurements are needed to confirm our results. |
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| AbstractList | Therapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc receptor (FcRn) blockers. The aim of this study was to perform a meta-analysis and network meta-analysis of randomized and placebo-controlled trials of innovative therapies in MG with available efficacy data.
We assessed statistical heterogeneity across trials based on the Cochrane Q test and I
values, and mean differences were pooled using the random-effects model. Treatment efficacy was assessed after 26 weeks of eculizumab and ravulizumab, 28 days of efgartigimod, 43 days of rozanolixizumab, 12 weeks of zilucoplan, and 16, 24 or 52 weeks of rituximab treatment.
We observed an overall mean Myasthenia Gravis-Activities of Daily Living scale (MG-ADL) score change of -2.17 points (95% confidence interval [CI] -2.67, -1.67; p < 0.001) as compared to placebo. No significant difference emerged between complement inhibitors and anti-FcRn treatment (p = 0.16). The change in Quantitative Myasthenia Gravis scale (QMG) score was -3.46 (95% CI -4.53, -2.39; p < 0.001), with a higher reduction with FcRns (-4.78 vs. -2.60; p < 0.001). Rituximab did not significantly improve the MG-ADL (-0.92 [95% CI -2.24, 0.39]; p = 0.17) or QMG scores (-1.9 [95% CI -3.97, 0.18]; p = 0.07). In the network meta-analysis, efgartigimod had the highest probability of being the best treatment, followed by rozanolixizumab.
Anti-complement and FcRn treatments both proved to be effective in MG patients, whereas rituximab did not show a significant benefit for patients. Within the limitations of this meta-analysis, including efficacy time points, FcRn treatments showed a greater effect on QMG score in the short term. Real-life studies with long-term measurements are needed to confirm our results. Background and purposeTherapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc receptor (FcRn) blockers. The aim of this study was to perform a meta‐analysis and network meta‐analysis of randomized and placebo‐controlled trials of innovative therapies in MG with available efficacy data.MethodsWe assessed statistical heterogeneity across trials based on the Cochrane Q test and I2 values, and mean differences were pooled using the random‐effects model. Treatment efficacy was assessed after 26 weeks of eculizumab and ravulizumab, 28 days of efgartigimod, 43 days of rozanolixizumab, 12 weeks of zilucoplan, and 16, 24 or 52 weeks of rituximab treatment.ResultsWe observed an overall mean Myasthenia Gravis‐Activities of Daily Living scale (MG‐ADL) score change of −2.17 points (95% confidence interval [CI] −2.67, −1.67; p < 0.001) as compared to placebo. No significant difference emerged between complement inhibitors and anti‐FcRn treatment (p = 0.16). The change in Quantitative Myasthenia Gravis scale (QMG) score was −3.46 (95% CI −4.53, −2.39; p < 0.001), with a higher reduction with FcRns (−4.78 vs. −2.60; p < 0.001). Rituximab did not significantly improve the MG‐ADL (−0.92 [95% CI −2.24, 0.39]; p = 0.17) or QMG scores (−1.9 [95% CI −3.97, 0.18]; p = 0.07). In the network meta‐analysis, efgartigimod had the highest probability of being the best treatment, followed by rozanolixizumab.ConclusionAnti‐complement and FcRn treatments both proved to be effective in MG patients, whereas rituximab did not show a significant benefit for patients. Within the limitations of this meta‐analysis, including efficacy time points, FcRn treatments showed a greater effect on QMG score in the short term. Real‐life studies with long‐term measurements are needed to confirm our results. Therapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc receptor (FcRn) blockers. The aim of this study was to perform a meta-analysis and network meta-analysis of randomized and placebo-controlled trials of innovative therapies in MG with available efficacy data.BACKGROUND AND PURPOSETherapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc receptor (FcRn) blockers. The aim of this study was to perform a meta-analysis and network meta-analysis of randomized and placebo-controlled trials of innovative therapies in MG with available efficacy data.We assessed statistical heterogeneity across trials based on the Cochrane Q test and I2 values, and mean differences were pooled using the random-effects model. Treatment efficacy was assessed after 26 weeks of eculizumab and ravulizumab, 28 days of efgartigimod, 43 days of rozanolixizumab, 12 weeks of zilucoplan, and 16, 24 or 52 weeks of rituximab treatment.METHODSWe assessed statistical heterogeneity across trials based on the Cochrane Q test and I2 values, and mean differences were pooled using the random-effects model. Treatment efficacy was assessed after 26 weeks of eculizumab and ravulizumab, 28 days of efgartigimod, 43 days of rozanolixizumab, 12 weeks of zilucoplan, and 16, 24 or 52 weeks of rituximab treatment.We observed an overall mean Myasthenia Gravis-Activities of Daily Living scale (MG-ADL) score change of -2.17 points (95% confidence interval [CI] -2.67, -1.67; p < 0.001) as compared to placebo. No significant difference emerged between complement inhibitors and anti-FcRn treatment (p = 0.16). The change in Quantitative Myasthenia Gravis scale (QMG) score was -3.46 (95% CI -4.53, -2.39; p < 0.001), with a higher reduction with FcRns (-4.78 vs. -2.60; p < 0.001). Rituximab did not significantly improve the MG-ADL (-0.92 [95% CI -2.24, 0.39]; p = 0.17) or QMG scores (-1.9 [95% CI -3.97, 0.18]; p = 0.07). In the network meta-analysis, efgartigimod had the highest probability of being the best treatment, followed by rozanolixizumab.RESULTSWe observed an overall mean Myasthenia Gravis-Activities of Daily Living scale (MG-ADL) score change of -2.17 points (95% confidence interval [CI] -2.67, -1.67; p < 0.001) as compared to placebo. No significant difference emerged between complement inhibitors and anti-FcRn treatment (p = 0.16). The change in Quantitative Myasthenia Gravis scale (QMG) score was -3.46 (95% CI -4.53, -2.39; p < 0.001), with a higher reduction with FcRns (-4.78 vs. -2.60; p < 0.001). Rituximab did not significantly improve the MG-ADL (-0.92 [95% CI -2.24, 0.39]; p = 0.17) or QMG scores (-1.9 [95% CI -3.97, 0.18]; p = 0.07). In the network meta-analysis, efgartigimod had the highest probability of being the best treatment, followed by rozanolixizumab.Anti-complement and FcRn treatments both proved to be effective in MG patients, whereas rituximab did not show a significant benefit for patients. Within the limitations of this meta-analysis, including efficacy time points, FcRn treatments showed a greater effect on QMG score in the short term. Real-life studies with long-term measurements are needed to confirm our results.CONCLUSIONAnti-complement and FcRn treatments both proved to be effective in MG patients, whereas rituximab did not show a significant benefit for patients. Within the limitations of this meta-analysis, including efficacy time points, FcRn treatments showed a greater effect on QMG score in the short term. Real-life studies with long-term measurements are needed to confirm our results. Background and purpose Therapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc receptor (FcRn) blockers. The aim of this study was to perform a meta‐analysis and network meta‐analysis of randomized and placebo‐controlled trials of innovative therapies in MG with available efficacy data. Methods We assessed statistical heterogeneity across trials based on the Cochrane Q test and I2 values, and mean differences were pooled using the random‐effects model. Treatment efficacy was assessed after 26 weeks of eculizumab and ravulizumab, 28 days of efgartigimod, 43 days of rozanolixizumab, 12 weeks of zilucoplan, and 16, 24 or 52 weeks of rituximab treatment. Results We observed an overall mean Myasthenia Gravis‐Activities of Daily Living scale (MG‐ADL) score change of −2.17 points (95% confidence interval [CI] −2.67, −1.67; p < 0.001) as compared to placebo. No significant difference emerged between complement inhibitors and anti‐FcRn treatment (p = 0.16). The change in Quantitative Myasthenia Gravis scale (QMG) score was −3.46 (95% CI −4.53, −2.39; p < 0.001), with a higher reduction with FcRns (−4.78 vs. −2.60; p < 0.001). Rituximab did not significantly improve the MG‐ADL (−0.92 [95% CI −2.24, 0.39]; p = 0.17) or QMG scores (−1.9 [95% CI −3.97, 0.18]; p = 0.07). In the network meta‐analysis, efgartigimod had the highest probability of being the best treatment, followed by rozanolixizumab. Conclusion Anti‐complement and FcRn treatments both proved to be effective in MG patients, whereas rituximab did not show a significant benefit for patients. Within the limitations of this meta‐analysis, including efficacy time points, FcRn treatments showed a greater effect on QMG score in the short term. Real‐life studies with long‐term measurements are needed to confirm our results. |
| Author | Sormani, Maria Pia Espinosa, Pablo Ezequiel Saccà, Francesco Pane, Chiara Signori, Alessio |
| Author_xml | – sequence: 1 givenname: Francesco orcidid: 0000-0002-1323-6317 surname: Saccà fullname: Saccà, Francesco email: francesco.sacca@unina.it organization: University “Federico II” – sequence: 2 givenname: Chiara surname: Pane fullname: Pane, Chiara organization: University “Federico II” – sequence: 3 givenname: Pablo Ezequiel surname: Espinosa fullname: Espinosa, Pablo Ezequiel organization: University of Genoa – sequence: 4 givenname: Maria Pia surname: Sormani fullname: Sormani, Maria Pia organization: University of Genoa – sequence: 5 givenname: Alessio surname: Signori fullname: Signori, Alessio organization: University of Genoa |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/37204031$$D View this record in MEDLINE/PubMed |
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Therapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement... Therapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors and neonatal Fc... Background and purposeTherapy for myasthenia gravis (MG) is undergoing a profound change, with new treatments being tested. These include complement inhibitors... |
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| SubjectTerms | Activities of Daily Living Clinical trials comparative Complement Complement Inactivating Agents - therapeutic use complement inhibitor Complement inhibitors Confidence intervals Effectiveness Fc receptors FcRn inhibitor Heterogeneity Humans Immunotherapy Infant, Newborn Inhibitors innovative treatment Meta-analysis Monoclonal antibodies Myasthenia gravis Myasthenia Gravis - drug therapy Neonates Neuromuscular junctions Placebos Rituximab Rituximab - therapeutic use Statistical analysis Statistical methods Therapies, Investigational trial |
| Title | Efficacy of innovative therapies in myasthenia gravis: A systematic review, meta‐analysis and network meta‐analysis |
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