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Table 3 Characteristics of guidance documents (n = 13)

From: Methodological review of NMA bias concepts provides groundwork for the development of a list of concepts for potential inclusion in a new risk of bias tool for network meta-analysis (RoB NMA Tool)

First author, year of publication

Title

Objective

Research institute

Country of the first author

Methods used to develop the guidance

Brignardello-Petersen 2018 [22]

Advances in the GRADE approach to rate the certainty in estimates from a network meta-analysis

Present recent advances to grade the certainty of the evidence

GRADE Working Group

Canada

NR

CADTH 2015 [52]

Guidance document on reporting indirect comparisons

Provide guidance on reporting indirect comparisons

CADTH

Canada

NR

Chaimani 2019 [53]

Undertaking network meta-analyses

Introduce/provide an overview of concepts, assumptions and methods of NMAs

Cochrane

UK

NR

Chaimani 2017a [54]

Additional considerations are required when preparing a protocol for a systematic review with multiple interventions

Highlight aspects of a standard systematic review protocol that may need modification when multiple interventions are to be compared

University of Ioannina School of Medicine

Greece

NR

Chaimani 2017b [55]

Common pitfalls and mistakes in the set-up, analysis and interpretation of results in network meta-analysis: what clinicians should look for in a published article

Provide a practical framework to assess the methodological robustness and reliability of results from network meta-analysis

University of Ioannina School of Medicine

Greece

NR

Coleman 2012 [56]

Use of mixed treatment comparisons in systematic reviews

Summarise available guidance for meta-analytic methods, identify analyses using these methods and summarize their characteristics, and identify rationale for selection/implementation/reporting of methods from investigators

Agency for Healthcare Research and Quality (AHRQ)

United States

Review guidance documents and MTC literature, expert opinion

Cope 2014 [57]

A process for assessing the feasibility of a network meta-analysis: a case study of everolimus in combination with hormonal therapy versus chemotherapy for advanced breast cancer

Outline a general process for assessing the feasibility of performing a valid NMA of RCT

Mapi

Canada

NR

Dwan 2020 [58]

Editorial decisions in reviews with network meta-analysis

Present editorial considerations in reviews with NMA

Cochrane

UK

NR

Foote 2015 [59]

Network Meta-analysis: Users' Guide for Surgeons: Part I—Credibility

Show the application of evaluation criteria for determining the credibility of a NMA through an example pertinent to clinical orthopaedics

McMaster University

Canada

NR

Haute Autorité de Santé 2009 [60]

Indirect comparisons Methods and validity

Introduce and discuss indirect comparison methods

Haute Autorité de Santé

France

Review of literature, expert peer review

Hummela 2017 [61]

Work Package 4: Methodological guidance, recommendations and illustrative case studies for (network) meta-analysis and modelling to predict real-world effectiveness using individual participant and/or aggregate data

Summarise state-of-the-art methods in NMA, IPD meta-analysis and mathematical modelling to predict drug effectiveness based on RCT data and related software, and discuss their advantages and limitations

University of Bern

Switzerland

Review of literature

Laws 2019 [41]

A Comparison of National Guidelines for Network Meta-Analysis

Create a superset of requirements collated from available national guidelines for the conduct of NMAs

Amaris

UK

Review of literature

Welton 2020 [45]

Sources and synthesis of evidence; Update to evidence synthesis methods (CHTE2020)

Review existing and emerging methods for synthesising evidence on clinical effectiveness for decision-making in Health Technology Appraisals (HTA), including NMA

NICE Decision Support Unit

UK

NR

  1. CADTH Canadian Agency For Drugs And Technologies In Health, NA not applicable, NICE-DSU National Institute for Health and Care Excellence Decision Support Unit checklist, NR not reported, MTC multiple treatment comparisons