La. R.S. 40:1300.75

If a patient's death is proximately caused by treatment with an individualized investigational drug, biological product, or device, the patient's estate, heirs, or devisees are not liable for any debt remaining after payment by insurance for charges directly incurred for the treatment. However, this provision shall not provide an exemption to liability for charges for nonexperimental treatments provided to the patient, including nonexperimental treatments rendered to the patient due to complications or consequences of the experimental treatment.