Bayer is poised to lose another attempt to keep documents confidential in the coordinated cases over Bayer’s female sterilization device Essure as plaintiffs lawyers attempt to prove that the previous manufacturer of the implant hid evidence of its potential negative side effects.

In a tentative ruling issued Tuesday, Alameda County Superior Court Judge Winifred Smith denied Bayer’s motion to seal internal audit documents from 2008 and 2015 regarding the permanent implant inserted into the fallopian tubes.