- Has received any contrast material (X-ray, MRI) or radiopharmaceutical within 48 hours prior to, or a therapeutic radiopharmaceutical (e.g., 131-I) within 10 days prior to, or any radiopharmaceutical administration within 10 radioactive half-lives prior to the administration of the investigational product or for whom administration of such substances is planned within 7 days after investigational product administration.