Brainstorm Health: Amarin Stock, Oklahoma Opioid Testimony, Work Burnout

BioMarin sinks on lackluster hemophilia gene therapy data. Gene therapies have had a series of notable successes in recent years (including Novartis' regulatory victory for Zolgensma). But things don't always quite work out as planned in what's still a relatively nascent space. Rare disease drug specialist BioMarin spooked investors after announcing lackluster data for its gene therapy to treat the blood disorder hemophilia A, largely over concerns that while the drug presents a benefit, that benefit may not be durable over a long term (and thus wouldn't present a cure). Given the massive prices associated with such therapies, the promise of a one-off cure is what the market is hungry to see. (Barron's)

An opioid overdose victim's dad's emotional testimony against Johnson & Johnson. Sometimes, things really do speak for themselves. "We had no idea about the prevalence of these drugs and the dangers of these drugs," said one Oklahoma college student's father during the state's ongoing trial against Johnson & Johnson for alleged deceptive marketing of the painkillers. Craig Box's son died of an opioid overdose in 2011 after being found unconscious at a friend's house. (Reuters)

It's official - workplace burnout is a major health problem. Workplace burnout has now been dubbed a public health problem by none other than the World Health Organization (WHO). Technically, the WHO isn't considering the issue a "medical condition;" it is, however, enough of a workplace phenomenon that it's now included in the organization's official handbooks. Burnout, according to the WHO, results from "chronic workplace stress that has not been successfully managed." (CBS News)

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[ceo_attribution author="Produced by Sy Mukherjee" email="sayak.mukherjee@fortune.com" twitter="the_sy_guy"] Find past coverage. Sign up for other Fortune newsletters.