Conduct a preliminary search to determine whether there are any existing systematic reviews that already address your research question. We suggest searching the Cochrane Database of Systematic Reviews, PROSPERO, and PubMed with an appropriate systematic review filter, e.g. systematic[sb].
Assemble a project team.
Write a review protocol specifying your plan for conducting the review. It should include the rationale for the review, objectives of the review, inclusion/exclusion criteria, methods for locating studies, quality assessment methods, data extraction methods, data synthesis/meta-analysis methods, etc.