Amulet Capital Partners has announced it has acquired Alliance Clinical Network (ACN).

ACN, based in Dallas, is a clinical site platform serving patients, pharmaceutical sponsors and contract research organizations. Founded in 2014, ACN owns and operates six clinical research sites across three states.

Amulet, based in Greenwich, Conn., is a middle market private equity investment firm focused exclusively on the healthcare sector. Founded in 2012, the firm typically invests between $25 million and $150 million in healthcare companies within segments that include life sciences outsourcing, payors and payor services, and providers and outsourced services.

Terms of the acquisition were not disclosed.