Aclaris Therapeutics Inc is a clinical-stage biopharmaceutical company that operates in the United States. It focuses on developing novel drug candidates for immuno-inflammatory diseases. The company operates in two segments: therapeutics and contract research. The therapeutics segment is focused on identifying and developing inventive therapies to address unmet needs for immuno-inflammatory diseases. The contract research segment earns revenue from the provision of laboratory services. The majority of its revenue comes from the contract research segment, which provides laboratory services. Its drug candidates under development are Zunsemetinib, which is an Oral MK2 Inhibitor; ATI-2138 is an ITJ Inhibitor; and ATI-1777.