Article ; Online: Drug-Induced Progressive Multifocal Leukoencephalopathy (PML): A Systematic Review and Meta-Analysis.
2024 Volume 47, Issue 4, Page(s) 333–354
Abstract: Introduction: Progressive multifocal leukoencephalopathy (PML) was first described among patients affected by hematological or solid tumors. Following the human immunodeficiency virus (HIV) epidemic, people living with HIV have represented most cases ... ...
| Abstract | Introduction: Progressive multifocal leukoencephalopathy (PML) was first described among patients affected by hematological or solid tumors. Following the human immunodeficiency virus (HIV) epidemic, people living with HIV have represented most cases for more than a decade. With the diffusion of highly active antiretroviral therapy, this group progressively decreased in favor of patients undergoing treatment with targeted therapy/immunomodulators. In this systematic review and meta-analysis, the objective was to assess which drugs are most frequently related to PML development, and report the incidence of drug-induced PML through a meta-analytic approach. Methods: The electronic databases MEDLINE, EMBASE, ClinicalTrials.gov, Web of Science and the Canadian Agency for Drugs and Technologies in Health Database (CADTH) were searched up to May 10, 2022. Articles that reported the risk of PML development after treatment with immunomodulatory drugs, including patients of both sexes under the age of 80 years, affected by any pathology except HIV, primary immunodeficiencies or malignancies, were included in the review. The incidence of drug-induced PML was calculated based on PML cases and total number of patients observed per 100 persons and the observation time. Random-effect metanalyses were conducted for each drug reporting pooled incidence with 95% confidence intervals (CI) and median (interquartile range [IQR]) of the observation time. Heterogeneity was measured by I Results: A total of 103 studies were included in the systematic review. In our analysis, we found no includible study reporting cases of PML during the course of treatment with ocrelizumab, vedolizumab, abrilumab, ontamalimab, teriflunomide, daclizumab, inebilizumab, basiliximab, tacrolimus, belimumab, infliximab, firategrast, disulone, azathioprine or danazole. Dalfampridine, glatiramer acetate, dimethyl fumarate and fingolimod show a relatively safe profile, although some cases of PML have been reported. The meta-analysis showed an incidence of PML cases among patients undergoing rituximab treatment for multiple sclerosis (MS) of 0.01 cases/100 persons (95% CI - 0.08 to 0.09; I Conclusions: A higher risk of drug-related PML in patients whose immune system is not additionally depressed by means of neoplasms, HIV or concomitant medications is found in the neurological field. This risk is higher in MS treatment, and specifically during long-term natalizumab therapy. While this drug is still routinely prescribed in this field, considering the efficacy in reducing MS relapses, in other areas it could play a smaller role, and be gradually replaced by other safer and more recently approved agents. |
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| MeSH term(s) | Male ; Female ; Humans ; Aged, 80 and over ; Natalizumab/adverse effects ; Leukoencephalopathy, Progressive Multifocal/chemically induced ; Leukoencephalopathy, Progressive Multifocal/epidemiology ; Canada ; Immunologic Factors/adverse effects ; Multiple Sclerosis/drug therapy ; HIV Infections/drug therapy |
| Chemical Substances | Natalizumab ; Immunologic Factors |
| Language | English |
| Publishing date | 2024-02-07 |
| Publishing country | New Zealand |
| Document type | Meta-Analysis ; Systematic Review |
| ZDB-ID | 1018059-x |
| ISSN | 1179-1942 ; 0114-5916 |
| ISSN (online) | 1179-1942 |
| ISSN | 0114-5916 |
| DOI | 10.1007/s40264-023-01383-4 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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