NovaQuest Capital-backed Catalyst Clinical Research, a provider of contract research staffing and managing services to biotechnology, pharmaceutical and medical device companies for clinical trial needs, agreed to acquire Aptus Clinical, an operator of full-service contract research organization. Financial terms were not disclosed. “We are thrilled to be working with Aptus Clinical to expand our reach in the European market, serving clients around the globe to help develop innovative new therapies, improve patient outcomes and enhance our company’s long-term impact. Our complementary service offerings and therapeutic area alignment will improve outcomes for all our clients," Nick Dyer, Catalyst Clinical Research CEO.