A US District Court judge will probably determine Wednesday whether 12 Massachusetts lawsuits against the New England Compounding Center can proceed, as both sides await a decision from a federal judicial panel on where the cases ultimately will be heard.

Hundreds of cases of fungal meningitis have been linked to the drug compounding facility, and 30 people have died. Many of the patients who contracted fungal meningitis are expected to file lawsuits against the company, leading to the complicated legal battle over where those cases will be heard.