Wash. Rev. Code § 69.77.080
(2) A health care practitioner does not commit unprofessional conduct under RCW 18.130.180 and does not violate the applicable standard of care by:
(3) The following persons and entities are immune from civil or criminal liability and administrative actions arising out of treatment of an eligible patient with an investigational product, other than acts or omissions constituting gross negligence or willful or wanton misconduct:
[ 2017 c 212 s 8.]