Texas Insurance Code - INS § 1369.213. Prohibited Conduct

(1) fail to successfully respond to a different drug;  or

(2) prove a history of failure of a different drug.

(1) consistent with best practices for the treatment of stage-four advanced, metastatic cancer or an associated condition;

(2) supported by peer-reviewed, evidence-based literature;  and

(3) approved by the United States Food and Drug Administration.