"required addressing" is correct and can be used in written English.
It is often used when there is a problem or issue that needs to be dealt with or solved. Here is an example: "The issue of pollution in our city required addressing immediately before it became a major environmental crisis."
At the same time, academics and the media groups suggested a broader range of freedom of speech issues required addressing and review, including defamation laws.
…as it does for a bona fide holding midfielder Mikel Arteta's 50th-minute injury exacerbates a situation that has required addressing for some time.
Seeking changes to the state's charter law would have likely required addressing thorny issues like separation of church and state and practical considerations like how to choose teachers and students for the new schools.
Congress decided that the most expedient thing to do was to throw every kind of expenditure one could think of, short-term and long-term, into a single bill, because the public was willing to spend the money right then and the legislative politics required addressing the demands of disparate constituencies.
Further research is required addressing the above issues.
As stated by Sandra, this required addressing a large set of specific student learning goals in a variety of content areas demanded by external mandates.
These also require addressing.
But cutting costs for privately insured patients also requires addressing prices.
Eradicating TB will require addressing this risk, the new research implies.
That explains why reforming the system will require addressing both cost and coverage together.
Lowering total health care expenses requires addressing the factors that drive those high-cost cases.
