Yes, in the Search and Replace tab of the bulk metadata editing. You'll need to use the regular expression mode on the title field.
the search expression you'll need is something like
^[^-\d]+\d+_-_
and the replace field should be blank.
(The search expression says
^ -: match from the start of the field (well, line, but there's only one line in a title field)
[^-\d]+ : one or more characters that aren't a dash or a digit
\d+ : one or more numeric digits
_-_ : space dash space)
where the underscores are spaces. It will show you what the effect will be on the first ten titles.
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