Pharmacokinetic Evaluation of Anrikefon Injection in the Geriatric Population With the Management of Acute Pain Following Abdominal Laparoscopy

This study used a single-center, single-arm, pharmacokinetic ( PK ) study design. Thirty subjects who met the inclusion criteria were stratified according to age, including 15 in each age group of 65-74 years old and ≥ 75 years old. The patients were treated with a unified anesthesia method during abdominal endoscopic surgery. Anrecofin injection 1.0 μg / kg was injected for the first time within 15 min, and then once again at 8 h and 16 h. And received 6 pain assessments, 1 satisfaction score and 1 telephone follow-up. In this study, 10 blood samples were collected and analyzed.