BACKGROUND: The objective of this study was to assess the safety and effica
cy of a 0.5% ferric hyaluronate gel, in reducing adhesions in patients unde
rgoing peritoneal cavity surgery by laparotomy, with a planned 'second-look
' laparoscopy. METHODS: The study was a randomized (by computer-generated s
chedule), third party blinded, placebo-controlled, parallel-group design co
nducted at five centres in Europe. Females aged 18-46 years received 300 ml
ferric hyaluronate (n=38) or lactated Ringer's (n=39) as an intraperitonea
l instillate at the completion of surgery. At second-look 6-12 weeks later,
the presence of adhesions was evaluated at 24 abdominal sites. RESULTS: Pa
tients treated with ferric hyaluronate had significantly fewer adhesions co
mpared with controls. When adhesions formed, they were significantly less e
xtensive and less severe in the treated group. The American Fertility Socie
ty score for adnexal adhesions was reduced by 69% in the treatment group co
mpared with controls. The safety profile of ferric hyaluronate-treated pati
ents was comparable with those treated with lactated Ringer's solution. CON
CLUSIONS: In conclusion, ferric hyaluronate was safe and highly efficacious
in reducing the number, severity and extent of adhesions throughout the ab
domen following peritoneal cavity surgery.