The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-Analysis

Linezolid (LZD) has a longstanding reported association with the onset of serotonin toxicity (ST), secondary to drug–drug interactions with serotoninergic agents. There have been no conclusive data supporting the incidence or contributing risk factors to date. The study evaluated the incidence of ST...

Full description

Bibliographic Details
Main Authors: Savanna SanFilippo, Jacques Turgeon, Veronique Michaud, Ronald G. Nahass, Luigi Brunetti
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Pharmacy
Subjects:
Online Access:https://www.mdpi.com/2226-4787/11/6/182
_version_ 1827573765053087744
author Savanna SanFilippo
Jacques Turgeon
Veronique Michaud
Ronald G. Nahass
Luigi Brunetti
author_facet Savanna SanFilippo
Jacques Turgeon
Veronique Michaud
Ronald G. Nahass
Luigi Brunetti
author_sort Savanna SanFilippo
collection DOAJ
description Linezolid (LZD) has a longstanding reported association with the onset of serotonin toxicity (ST), secondary to drug–drug interactions with serotoninergic agents. There have been no conclusive data supporting the incidence or contributing risk factors to date. The study evaluated the incidence of ST in patients treated with LZD and serotonergic agents concomitantly versus LZD alone. The secondary objectives included a comparison of ST incidence in patients treated with one serotonergic agent + LZD versus two or more serotonergic agents + LZD. The studies used for this meta-analysis were retrieved from PubMed, Scopus, and Google Scholar. All studies including a comparison between LZD alone and LZD + a serotonergic agent published between 1 January 2000 and 1 October 2023 and meeting the quality standards were considered for inclusion. Fourteen studies were identified, with five meeting all inclusion and exclusion criteria with no significant heterogeneity. For the analysis of LZD monotherapy vs. SA combination therapy, four studies with 6025 patients total were analyzed and yielded an odds ratio of 1.78 (CI [1.04, 3.02]; I<sup>2</sup> = 49%; GRADE certainty: low). Four studies and 2501 patients were included in the analysis of one versus more than one SA with an odds ratio of 5.18 (CI [1.05, 25.49]; I<sup>2</sup> = 44.87; GRADE certainty: moderate). The Newcastle–Ottawa score, visual inspection of the funnel plot, and Egger’s statistic were used to evaluate quality and heterogeneity. The Peto method was used to calculate the summary odds ratios. All analyses were performed using Comprehensive Meta-Analysis version 3.0 and R, while GRADE was used to evaluate the quality of the final recommendation. The number of concomitant serotonergic agents may play a role in the development of serotonin toxicity in patients prescribed linezolid. In patients requiring linezolid therapy and serotonergic agents, risk versus benefit analysis should pay attention to the number of interacting drugs.
first_indexed 2024-03-08T20:25:54Z
format Article
id doaj.art-4581ff22d08f4a3d889d30b633536168
institution Directory Open Access Journal
issn 2226-4787
language English
last_indexed 2024-03-08T20:25:54Z
publishDate 2023-11-01
publisher MDPI AG
record_format Article
series Pharmacy
spelling doaj.art-4581ff22d08f4a3d889d30b6335361682023-12-22T14:32:27ZengMDPI AGPharmacy2226-47872023-11-0111618210.3390/pharmacy11060182The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-AnalysisSavanna SanFilippo0Jacques Turgeon1Veronique Michaud2Ronald G. Nahass3Luigi Brunetti4Robert Wood Johnson University Hospital Somerset, Somerville, NJ 08876, USAGalenus Rx, Orlando, FL 32789, USAGalenus Rx, Orlando, FL 32789, USAIDCare, Hillsborough, NJ 08844, USARobert Wood Johnson University Hospital Somerset, Somerville, NJ 08876, USALinezolid (LZD) has a longstanding reported association with the onset of serotonin toxicity (ST), secondary to drug–drug interactions with serotoninergic agents. There have been no conclusive data supporting the incidence or contributing risk factors to date. The study evaluated the incidence of ST in patients treated with LZD and serotonergic agents concomitantly versus LZD alone. The secondary objectives included a comparison of ST incidence in patients treated with one serotonergic agent + LZD versus two or more serotonergic agents + LZD. The studies used for this meta-analysis were retrieved from PubMed, Scopus, and Google Scholar. All studies including a comparison between LZD alone and LZD + a serotonergic agent published between 1 January 2000 and 1 October 2023 and meeting the quality standards were considered for inclusion. Fourteen studies were identified, with five meeting all inclusion and exclusion criteria with no significant heterogeneity. For the analysis of LZD monotherapy vs. SA combination therapy, four studies with 6025 patients total were analyzed and yielded an odds ratio of 1.78 (CI [1.04, 3.02]; I<sup>2</sup> = 49%; GRADE certainty: low). Four studies and 2501 patients were included in the analysis of one versus more than one SA with an odds ratio of 5.18 (CI [1.05, 25.49]; I<sup>2</sup> = 44.87; GRADE certainty: moderate). The Newcastle–Ottawa score, visual inspection of the funnel plot, and Egger’s statistic were used to evaluate quality and heterogeneity. The Peto method was used to calculate the summary odds ratios. All analyses were performed using Comprehensive Meta-Analysis version 3.0 and R, while GRADE was used to evaluate the quality of the final recommendation. The number of concomitant serotonergic agents may play a role in the development of serotonin toxicity in patients prescribed linezolid. In patients requiring linezolid therapy and serotonergic agents, risk versus benefit analysis should pay attention to the number of interacting drugs.https://www.mdpi.com/2226-4787/11/6/182linezolidserotonin syndromeserotonin toxicityserotonin agonistsdrug interaction
spellingShingle Savanna SanFilippo
Jacques Turgeon
Veronique Michaud
Ronald G. Nahass
Luigi Brunetti
The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-Analysis
Pharmacy
linezolid
serotonin syndrome
serotonin toxicity
serotonin agonists
drug interaction
title The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-Analysis
title_full The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-Analysis
title_fullStr The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-Analysis
title_full_unstemmed The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-Analysis
title_short The Association of Serotonin Toxicity with Combination Linezolid–Serotonergic Agent Therapy: A Systematic Review and Meta-Analysis
title_sort association of serotonin toxicity with combination linezolid serotonergic agent therapy a systematic review and meta analysis
topic linezolid
serotonin syndrome
serotonin toxicity
serotonin agonists
drug interaction
url https://www.mdpi.com/2226-4787/11/6/182
work_keys_str_mv AT savannasanfilippo theassociationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT jacquesturgeon theassociationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT veroniquemichaud theassociationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT ronaldgnahass theassociationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT luigibrunetti theassociationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT savannasanfilippo associationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT jacquesturgeon associationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT veroniquemichaud associationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT ronaldgnahass associationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis
AT luigibrunetti associationofserotonintoxicitywithcombinationlinezolidserotonergicagenttherapyasystematicreviewandmetaanalysis