A lawyer representing people who claim that the acne drug Accutane� caused them serious gastrointestinal diseases said his team is ready to try cases in Atlantic City, N.J. and Madison County, Ill., in April — the first two cases of potentially hundreds to go to trial.

Michael D. Hook of Hook Bolton Mitchell Kirkland & McGhee in Pensacola, Fla., who spent 20 years of his legal career mostly defending doctors, hospitals and insurance companies, said that he put together a consortium of firms to take to on Hoffman-LaRoche Inc. of Nutley, N.J.