As used in this subchapter: 
(1) “Eligible patient” means a person who meets the requirements of eligibility in § 20-15-2104; 
(2) “Investigational drug, biological product, or device” means a drug, biological product, or device that: 
(A) Has successfully completed phase I of clinical trials but has not been approved for general use by the United States Food and Drug Administration; and 
(B) Remains currently under investigation in a United States Food and Drug Administration clinical trial; 
(3) “Physician” means an individual licensed to practice medicine in the State of Arkansas under the Arkansas Medical Practices Act, § 17-95-201 et seq., § 17-95-301 et seq., and § 17-95-401 et seq.; and 
(4) “Terminal illness” means an incurable and irreversible condition that without the administration of life-sustaining treatment will, in the opinion of the patient's physician, result in death within a relatively short time.