The fate of 168 New Jersey suits against the makers of hormone replacement drugs has been thrown into doubt with the summary dismissal of the first two of the cases slated for trial.

Superior Court Judge Jamie Happas, the designated judge for all N.J. cases alleging hormone replacement therapy (HRT) drugs caused breast cancer, ruled Friday that the state Products Liability Act’s rebuttable presumption of adequate labeling applied and that the plaintiffs failed to surmount it.