Orly Adelson has resigned her post as president of ITV Studios America.

Adelson, a production vet who previously headed Dick Clark Prods., has been with the company since early last year. ITV Studios America has been in the midst of a big push to expand the scope of its U.S. production activity, in tandem with the parent company’s buying binge of indie production companies in the U.S. and U.K.

The reason for Adelson’s departure was not immediately clear.

“ITV Studios America’s continued expansion in both scripted and unscripted, coupled with Orly Adelson’s decision to step down as president, provides us with the opportunity to restructure the business to better reflect our growth and ambitions for the future,” ITV said in a statement. “We would like to wish Orly the very best as she moves on with her plans in live, reality television and scripted production.”

Adelson joined ITV Studios in January 2014. She was a key player in beefing up its scripted series activity and bringing the Neil Patrick Harris variety series “Best Time Ever,” based on an ITV format, to NBC in the fall. ITV Studios also launched the scripted dramedy “Good Witch” on Hallmark Channel during Adelson’s tenure.

Adelson’s departure follows the exit last November of Paul Buccieri, who was head of the ITV Studios U.S. Group, for a senior post at A+E Networks.

Before ITV, Adelson spent six years as president of Dick Clark Prods.