Cal. Health & Safety Code § 111548.5

This article does not create a private cause of action, and actions taken pursuant to this article shall not serve as a basis for a civil, criminal, or disciplinary claim or cause of action, including, but not limited to, product liability, medical negligence, or wrongful death, against a manufacturer of an investigational drug, biological product, or device, or against any other person or entity involved in the care of an eligible patient for harm done to the eligible patient or his or her heirs resulting from the investigational drug, biological product, or device, or the use or nonuse thereof, if the manufacturer or other person or entity has complied with the terms of this article in relation to the eligible patient, unless there was a failure to exercise reasonable care.