IQVIA pays Quest Diagnostics $760M to get full control of central lab joint venture April 1, 2021 Auto Bot BioPharma, biopharma nl, Connecticut, Durham, IQVIA, Mergers and Acquisitions, North Carolina, Pharma, Quest Diagnostics 0 IQVIA has acquired Quest Diagnostics’ minority stake in Q2 Solutions, a central laboratory services joint venture the two companies formed in 2015. But Quest will remain a preferred provider of lab testing services under an agreement with Q2.