Study 329. GSK paid a PR company to ghostwrite a misleading paper, with the intent of concealing the fact that a) paroxetine is no more effective than placebo in the treatment of adolescent depression and b) paroxetine significantly increases the risk of suicide in adolescents.

GSK knew that their drug was worse than useless, they knew that children would die as a result, but they deliberately withheld damning data and misled clinicians. For this (and many, many other acts of deceit) they were fined a total of $3bn by the Department of Justice.

The paper has never been retracted and paroxetine is still widely prescribed to adolescents.

https://en.wikipedia.org/wiki/Study_329