Pharmaceutical company Clinigen Group has announced that Robin Sibson, the firm's current chief financial officer, is to retire.

Sibson will be replaced by Martin Abell, effective from 3 August 2015, and will become a non-executive director of the group thereafter.

Abell is presently chief financial officer of the continental Europe and rest of world division team at recruitment firm Hays, a position he has held since 2010.

Abell has been at Hays since 2006, and has previously held various positions at logistics company Exel.

Clinigen Group chief executive Peter George said: “Robin has been a fundamental part of Clinigen’s history to date. He joined over 12 years ago as one of the original team which evolved into Clinigen…

“Martin has considerable international experience which is highly relevant to our business as it expands globally and his experience in M&A will be invaluable as we pursue our strategy of growth.”