Omnicom’s Adelphi Worldwide has purchased The Planning Shop international, aka TPSi. The London healthcare brand and research agency will become part of Omnicom’s DAS Group. TPSi’s expertise covers both prescription and over-the-counter pharmaceutical markets.

“I have admired their creative skills in developing a unique agency and branded solution-based offer in the global space. They complement superbly our research presence across the spectrum, from molecule idea development to tangible brand,” Adelphi Worldwide CEO Stuart Cooper said in a statement.