A U.S. appeals court on Aug. 10 threw out a price-fixing lawsuit against two Chinese companies that make vitamin C, a case that spotlighted trade tensions between the United States and China.

AbbVie

The U.S. Supreme Court on June 21 declined to hear AbbVie Inc.’s challenge to a lower court’s decision that the company violated federal antitrust law by pursuing a “sham” patent complaint against rival Perrigo Co. over AbbVie’s blockbuster testosterone replacement drug AndroGel.

Novartis said claims of price fixing against the drugmaker’s Sandoz generics unit amid a U.S. probe of 20 drugmakers are without merit, with the Swiss company vowing to fight allegations in a lawsuit.