(Bloomberg) -- Cigna Group will eliminate prescription drug rebates in many of its commercial health plans in 2027, upending an opaque, controversial practice that’s drawn the ire of President Donald Trump.The insurer will expand the rebate-free model to clients of its pharmacy benefits business starting in 2028. The plan to eventually phase out rebates more broadly portends a seismic shift in the flow of billions of dollars among drugmakers, insurers and employers.Cigna said it aims to lower patients’ cost ...