Instem Group has acquired Logos Technologies Inc., a company that makes software for managing early phase clinical studies.

London-based Logos provides its services to pharmaceutical, biotechnology and clinical research organizations. The company also develops mobile data-inputting software. Terms of the deal were not disclosed.

Instem, headquartered in Staffordshire, England, provides information technology services, including data collection, management and analysis, to the early-development health care market.

The transaction follows an increase in activity in the health care M&A market. In May, Takeda Pharmaceutical Company Ltd. announced a deal to buy biopharmaceutical company lnviragen for up to $215 million. In April, Auxilium Pharmaceuticals Inc. (Nasdaq: AUXL) bought Actient Holdings LLC, a company that develops medications for urological conditions, and Opko Health Inc. (NYSE: OPK) announced it is buying Israeli biopharmaceutical company Prolor Biotech Inc. (NYSE: PBTH).