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CompletedNCT00562471Updated Nov 22, 2007

Safety and Efficacy Study of a Hydrogel, Applied Following Removal of Myomas During Gynecologic Surgery, Administered for the Prevention/Reduction of Postoperative Adhesion Formation

A Phase 1/2 interventional study of Adhibit Adhesion Prevention Gel and Standard of Care Comparator in Myoma, sponsored by Angiotech Pharmaceuticals. Completed at 6 sites in 3 countries. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2007-11-22.

Sponsored by Angiotech Pharmaceuticals · Phase 1/2, Interventional, and Prevention

Phase
Phase 1/2
Study type
Interventional
Enrollment
76
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study summary

The purpose of this study was to determine whether the adhesion prevention gel was safe to use, and was effective for the prevention/reduction of adhesion formation that typically occurs following gynecological surgery to remove myomas

Read the detailed description

Postoperative adhesions are a common medical complication of gynecologic and pelvic surgeries, and are frequently associated with chronic or recurrent pelvic pain, intestinal obstruction and infertility. This randomized, controlled, multicenter, clinical study was designed to evaluate the safety and performance of Adhibit™ Adhesion Prevention Gel versus the standard of care for the reduction of postoperative adhesions in subjects undergoing myomectomy via laparotomy or laparoscopy. Subjects were scheduled to return within 6-8 weeks after the initial surgical procedure. At that time, a second-look laparoscopy was performed for postoperative adhesion assessment. Adhesions were graded using a modified American Fertility Society (mAFS) scoring method.

02

Conditions studied

  • Myoma

Keywords

  • adhesions
  • gynecologic surgery
  • laparoscopy
  • laparotomy
  • polyethylene glycol
  • hydrogel
  • Adhesions following gynecologic surgery to remove myomas
03

In context

Myoma

61 studies on the registry are indexed under Myoma; 10 are open to participants now.

This study's enrollment of 76 is close to the median of 80 across 45 interventional studies indexed under Myoma.

Browse Myoma studies →

Lead sponsor

Angiotech Pharmaceuticals is the lead sponsor of 6 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Preoperatively, subjects must have had:

  • Been scheduled for myomectomy via laparotomy or laparoscopy.
  • Agreed to a second-look laparoscopic procedure to assess and lyse any adhesions formed at 6 to 8 weeks following myomectomy.
  • Been >=18 years of age.
  • Provided voluntary written .
  • Been willing to comply with all aspects of the treatment and evaluation schedule.

Intra-operatively, subjects must have had:

  • Had at least one 2 cm incision length on posterior uterine surface, which may include the fundal surface.

Exclusion criteria

Exclusion Criteria:

Preoperatively, subjects must not have had:

  • Been pregnant.
  • Had a pelvic .
  • Had acute pelvic inflammatory disease.
  • Had an immune compromised condition.
  • Been a participant in another clinical research study which the investigator believed could interfere with the purpose of this study.
  • Been given intra-operatively or during the course of the postoperative study follow up.

Intra-operatively, subjects must not have had:

  • Had a pelvic malignancy.
  • Had a pelvic or abdominal infection.
  • Had acute pelvic inflammatory disease.
  • Received any adhesion prevention adjuvants or barriers, or peritoneal instillates containing corticosteroids, NSAIDs, or Dextran.
Terms in these criteria, in plain language(3)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
76 participants (actual)

Study arms

  • Experimental
    1

    Adhesion Prevention Gel Arm

    Other: Adhibit Adhesion Prevention Gel

  • Other
    2

    Standard of Care Comparator Arm (standard of care for post-operative adhesion prevention included irrigation of tissues and lavage of all fluids with Ringers Lactate solution following surgery and 300 to 500mL of solultion left in the pelvic cavity immediately prior to wound closure)

    Other: Standard of Care Comparator

Interventions

  • OtherAdhibit Adhesion Prevention Gel

    A resorbable hydrogel, which adheres to itself and the tissues it contacts, is approved for use in sealing vascular reconstructions. The hydrogel is formed when two synthetic derivatized polyethylene glycol (PEG) polymers are mixed together and applied to tissue. Using a gas-assisted delivery device, the hydrogel is sprayed over all myomectomy suture lines and all surgically treated areas during the myomectomy surgery. The hydrogel is totally resorbed within 30 days post-application.

    Also known as: CoSeal Surgical Sealant; CoSeal Adhesion Prevention Gel

  • OtherStandard of Care Comparator

    standard of care for post-operative adhesion prevention included irrigation of tissues and lavage of all fluids with Ringers Lactate solution following surgery and 300 to 500mL of solultion left in the pelvic cavity immediately prior to wound closure

06

What researchers measure

Primary outcomes

  1. modified American Fertility Society (mAFS) score at the posterior uterus

    Time frame: 6-8 weeks following primary myomectomy surgery

Secondary outcomes

  1. adhesion extent and tenacity scores at the posterior uterus

    Time frame: 6-8 weeks following primary myomectomy surgery

07

Study locations

6 sites
  • St. Joseph's Health Centre
    Toronto, Ontario M6R 3B2, Canada
  • Klinik für Minimal Invasive Chirurgie
    Berlin, 14129, Germany
  • Universitätsklinikum Giessen
    Giessen, D-35385, Germany
  • Univ. Clinics of Schleswig-Holstein
    Kiel, 24105, Germany
  • Bethesda Krankenhaus Wupperta
    Wuppertal, 42109, Germany
  • St. Elizabeth Hospital
    Curaçao, Netherlands Antilles
08

References and documents

Publications

  • Mettler L, Hucke J, Bojahr B, Tinneberg HR, Leyland N, Avelar R. A safety and efficacy study of a resorbable hydrogel for reduction of post-operative adhesions following myomectomy. Hum Reprod. 2008 May;23(5):1093-100. doi: 10.1093/humrep/den080. Epub 2008 Mar 17. PubMed 18346996 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 22, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00562471
Lead sponsor
Angiotech Pharmaceuticals
First posted
Nov 22, 2007
Start date
Jul 2003
Completion
Jan 2005
Last update
Nov 22, 2007

Study contacts

Liselotte METTLE, MD, PhD
principal investigator · Univ. Clinics of Schleswig-Holstein

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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