FRANKFURT, Feb 7 (Reuters) - The European Union's drugs regulator said on Wednesday it will investigate any risks to the availability of medicines processed at Catalent sites that will be sold to Novo Nordisk, part of its mandate to prevent drug shortages.

The European Medicines Agency told Reuters in a statement that its Medicine Shortages Single Point of Contact (SPOC) Working Party will liaise with member states to gather data on the products manufactured at the sites.

It will "assess the possible impact on the availability of these medicines", it added. It did not provide the names of the drugs in question.

Novo Nordisk on Monday moved to boost output of its popular obesity drug Wegovy as its parent holding struck a deal to buy Catalent, a key contract manufacturer of the product, for $16.5 billion.

Nested in that deal was the sale of three of Catalent's fill-finish sites - in Anagni, Italy; Brussels, Belgium; and Bloomington, Indiana - to Novo Nordisk for $11 billion.

(Reporting by Ludwig Burger; Editing by Kirsten Donovan)