The trial related to Rose Cancer Center in Summit had been scheduled to begin Wednesday in U.S. District Court in Jackson.
Prosecutors filed a motion in March asking for more time to prepare. The filing said more charges are likely.
Dr. Meera Sachdeva, Brittany McCoskey and Monica Weeks are charged with offenses including conspiracy and witness tampering. They've pleaded not guilty.
Authorities say the clinic made millions while diluting drugs and billing Medicaid, Medicare and insurance companies for more chemotherapy drugs than patients received. The clinic is now closed.






