Multidistrict litigation is “littered with examples of undisclosed non-party involvement gone wrong,” according to Sanofi-Aventis U.S. LLC in a motion renewing its demand that plaintiffs attorneys disclose outside funding of lawsuits filed over breast cancer drug Taxotere.

Among the ills Sanofi lawyers depicted: fee arrangements with doctors, medical screenings of plaintiffs, and outside funders that allowed doctors to charge inflated costs on medical liens.