Interventions for the management of post COVID-19 condition (long COVID): Protocol for a living systematic review & network meta-analysis
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Background
Up to 15% of survivors of COVID-19 infection experience long-term health effects, including fatigue, myalgia, and impaired cognitive function, termed post COVID-19 condition or long COVID. Several trials that study the benefits and harms of various interventions to manage long COVID have been published and hundreds more are planned or are ongoing. Trustworthy systematic reviews that clarify the benefits and harms of interventions are critical to promote evidence-based practice.
Objective
To create and maintain a living systematic review and network meta-analysis addressing the benefits and harms of pharmacologic and non-pharmacologic interventions for the treatment and management of long COVID.
Methods
Eligible trials will randomize adults with long COVID, to pharmacologic or non-pharmacologic interventions, placebo, sham, or usual care. We will identify eligible studies by searches of MEDLINE, EMBASE, CINAHL, PsycInfo, AMED, and CENTRAL, from inception, without language restrictions.
Reviewers will work independently and in duplicate to screen search records, collect data from eligible trials, including trial and patient characteristics and outcomes of interest, and assess risk of bias. Our outcomes of interest will include fatigue, pain, post-exertional malaise, changes in education or employment status, cognitive function, mental health, dyspnea, quality of life, patient-reported physical function, recovery, and serious adverse events.
For each outcome, when possible, we will perform a frequentist random-effects network meta-analysis. When there are compelling reasons to suspect that certain interventions are only applicable or effective for a subtype of long COVID, we will perform separate network meta-analyses. The GRADE approach will guide our assessment of the certainty of evidence.
We will update our living review biannually, upon the publication of a seminal trial, or when new evidence emerges that may change clinical practice.
Conclusion
This living systematic review and network meta-analysis will provide comprehensive, trustworthy, and up-to-date summaries of the evidence addressing the benefits and harms of interventions for the treatment and management of long COVID. We will make our findings available publicly and work with guideline producing organizations to inform their recommendations.
