• Dong Yun Lee, Sa Ra Lee, Seul Ki Kim, Jong Kil Joo, Woo Shun Lee, Jung Ho Shin, SiHyun Cho, Joon Cheol Park, and Sung Hoon Kim.
• Department of Obstetrics & Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
• Yonsei Med. J. 2020 Oct 1; 61 (10): 868-874.

PurposeTo investigate the efficacy and safety of a newly developed thermo-responsive sol-gel, ABT13107, for reducing the formation of intrauterine adhesions (IUAs) after hysteroscopic surgery.Materials And MethodsIn this multicenter, prospective, randomized trial (Canadian Task Force classification I), 192 women scheduled to undergo a hysteroscopic surgery at one of the eight university hospitals in South Korea were randomized into the ABT13107 group or the comparator (Hyalobarrier®) group in a 1:1 ratio. During hysteroscopic surgery, ABT13107 or Hyalobarrier® was injected to sufficiently cover the entire intrauterine cavity.ResultsThe patients returned to their respective sites for safety assessments at postoperative weeks 1 and 4 and for efficacy assessments at postoperative week 4. The post-surgery incidence of IUAs was 23.4% in the ABT13107 group and 25.8% in the comparator group; this difference met the criteria for ABT13107 to be considered as not inferior to the comparator. No differences were found in the extent of adhesions, types of adhesions, or the cumulative American Fertility Society score between the two treatment groups. Most adverse events were mild in severity, and no serious adverse events occurred.ConclusionABT13107, a new anti-adhesive barrier containing hyaluronic acid, was not inferior to the highly viscous hyaluronic acid anti-adhesive barrier, Hyalurobarrier® in IUA formation after hysteroscopic surgery (Clinical trial registration No. NCT04007211).© Copyright: Yonsei University College of Medicine 2020.

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