Setting
This meta-trial includes studies of inhaled nebulised UFH in
hospitalised patients with COVID-19 who do not immediately require
invasive mechanical ventilation. A full list of participating
institutions is or will be made available in each individual trial
record on respective trial registries. New studies from other
institutions and countries may be added to this meta-trial after
publication of the meta-trial’s protocol and statistical analysis plan,
provided the studies meet the eligibility criteria for the meta-trial
(patient eligibility criteria, intervention, core set of outcome
measures).