Indivior has agreed to pay $30 million to settle a class action lawsuit filed in a U.S. court by health plans accusing the drugmaker of illegally suppressing generic competition for its opioid addiction treatment Suboxone. The settlement, disclosed on Saturday in a filing by lawyers for the health plans in federal court in Philadelphia, must still be approved by a judge. Indivior is still facing claims by drug wholesalers that bought Suboxone from the Virginia-based company directly, with a trial scheduled in October.