Bloomberg Law
Feb. 15, 2018, 3:25 PM UTC

Quest Diagnostics’ Antitrust Win Affirmed on Appeal

Eleanor Tyler

By Eleanor Tyler

Quest Diagnostics Inc. beat back a lawsuit alleging it monopolized the Northern California market for medical diagnostic testing after a federal appeals court agreed the complaint lacks merit.

The suit is likely over. The U.S. Court of Appeals for the Ninth Circuit, in a Feb. 12 unpublished opinion, affirmed a lower court’s ruling that the plaintiffs showed no facts to support their case. To revive their claims, they would have to convince the U.S. Supreme Court to revisit the case, an extremely high bar.

The plaintiffs paid copayments and deductibles on lab work done at Quest. They ...

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