Astorg Partners, a private equity firm, completed the acquisition of OPEN Health, a medical communication consulting services provider, from Amulet Capital Partners, a middle-market private equity investment firm, for $1bn. "We are excited to build on the momentum across our business and to continue executing with our new partners at Astorg on a shared long-term vision to bring deep scientific solutions that support our clients in driving positive health outcomes. We are grateful for the strong partnership of the Amulet team over the last three and a half years and for all that we have accomplished in expanding our industry-leading capabilities across disciplines. We continue to be very well positioned to drive innovation and growth, and we look forward to embarking on this next chapter for OPEN Health," Rob Barker, OPEN Health CEO.