Day One Biopharmaceuticals named Garry Nicholson as its chairman of the board of directors Monday.

Nicholson has more than 30 years of experience, including most recently serving as president of Pfizer Oncology. Nicholson also serves as chairman of the board of directors for G1 Therapeutics.

Day One co-founder Julie Grant, who served as chair of the board since last year, will remain on as a member of the board.

“Garry is an accomplished leader in the development and commercialization of new cancer therapies and we are thrilled to welcome him as chairman of our board of directors,” said Day One CEO Jeremy Bender, Ph.D. in a statement