Massachusetts sued a unit of French advertising company Publicis Groupe SA on May 6, accusing it of fueling the U.S. opioid crisis by using unfair and deceptive marketing to help drugmaker Purdue Pharma sell more OxyContin.

Germany’s CureVac, which is gearing up to publish results of a key Covid-19 vaccine trial, said U.S. export restrictions on key materials are making it impossible to predict the company’s short-term supply ramp-up in Europe.

The three largest U.S. drug distributors, facing their first trial over claims that they fueled the opioid crisis, said responsibility for ballooning painkiller sales lies with doctors, drugmakers and regulators.

AstraZeneca on April 26 said that legal action by the European Union against the pharmaceutical company over the supply of the company’s Covid-19 vaccine was without merit and pledged to defend itself strongly in court.

Four drugmakers, including Johnson & Johnson and Teva Pharmaceutical Industries Ltd., will go to trial on April 19 over claims they helped fuel an opioid crisis that has resulted in nearly 500,000 overdose deaths in the United States.

Merck & Co. will help make rival Johnson & Johnson’s Covid-19 vaccine in order to boost the slower-than-promised production of the one-dose shot, U.S. President Joe Biden said on March 2.

A judge in Hawaii ordered Bristol-Myers Squibb Co. and Sanofi SA to pay more than $834 million to the state for failing to warn non-white patients properly of health risks from the blood thinner Plavix.

In a long-running court battle over PCSK9 antibodies, Amgen lost the company’s bid to uphold patent claims for the cholesterol drug Repatha against rival drug Praluent, developed by Sanofi and Regeneron.

The Biden administration is exploring every option for increasing manufacturing of Johnson & Johnson’s Covid-19 vaccine, which is under regulatory review, and said on Feb. 5 that currently expected levels of early doses were less than hoped.

Bayer AG struck a $2 billion deal to resolve future legal claims that the German company widely used weedkiller Roundup causes cancer.