NuGet で AttachedCommandBehavior を追加
ViewModel
Public ReactiveCommand<T> Hoge { get; set; }
View
xmlns:cb="clr-namespace:AttachedCommandBehavior;assembly=AttachedCommandBehavior"
<ListView>
<ListBox.ItemContainerStyle>
<Style TargetType="ListViewItem">
<Setter Property="cb:CommandBehavior.Event" Value="MouseDoubleClick" />
<Setter Property="cb:CommandBehavior.Command" Value="{Binding Path=DataContext.Hoge, RelativeSource={RelativeSource AncestorType=Window}}" />
<Setter Property="cb:CommandBehavior.CommandParameter" Value="{Binding}" />
</Style>
</ListBox.ItemContainerStyle>
</ListView>