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CompletedNCT01745432ADBEEUpdated Jul 6, 2016

Assessment of the Manageability and Safety of ADBLOCK Adhesion Barrier System in Laparoscopic Gynaecological Surgery

A Phase 1 interventional study of ADBLOCK in UTERINE MYOMAS, sponsored by Terumo Europe N.V.. Completed at 3 sites in Germany. Open to female participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2016-07-06.

Sponsored by Terumo Europe N.V. · Phase 1, Interventional, and Prevention

Phase
Phase 1
Study type
Interventional
Enrollment
30
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

Adhesions are the most frequent complication of abdominopelvic surgery. They are internal scar tissues which form as a result of surgery which may abnormally join together what were once separate tissues and organs.

This study will assess the safety and usability of anti-adhesion agent (gel) when used after laparoscopic surgery.

The study will enroll 30 patients, (randomised 2:1) with safety primary endpoint (adverse events in ADBLOCK and surgery only group) assessed at 28 days

Read the detailed description

Title: Assessment of the Manageability and Safety of ADBLOCK Adhesion Barrier System in Laparoscopic Gynaecological surgery

Design: Randomised controlled study to assess the safety, manageability and usability of ADBLOCK when used as an adjunct to laparoscopic surgery for the primary removal of ('virgin') myomas in women wishing to improve pregnancy outcomes.

Use of ADBLOCK will be assessed against laparoscopic surgery alone in 30 patients (randomised 2:1 ADBLOCK/surgery) with a pneumoperitoneum ≤90minutes.

Clinical Site Locations:

  • Oldenburg, Germany
  • Neuss, Germany
  • Berlin, Germany

Patient Population: Women who have not completed their family planning and who are undergoing primary ('virgin') laparoscopic myomectomy with an aim to improve pregnancy outcomes.

02

Conditions studied

  • UTERINE MYOMAS

Keywords

  • ADBLOCK
  • Adhesion Barrier System
  • laparoscopic surgery
  • myomectomy
03

In context

Leiomyoma

490 studies on the registry are indexed under Leiomyoma; 81 are open to participants now.

This study's planned enrollment of 30 is below the median of 62 across 345 interventional studies indexed under Leiomyoma.

Browse Leiomyoma studies →

Lead sponsor

Terumo Europe N.V. is the lead sponsor of 24 studies on the registry; 1 is open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Female
  • 18-45 years
  • Indication for laparoscopic myomectomy according to the medical standard
  • Negative pregnancy test before study entry
  • Using adequate forms of contraception for 12 weeks following surgery (e.g. oral contraceptive pill, condom, no sexual intercourse)
  • In good health including an ASA (American Society of Anesthesiologists) score of 2 or less
  • No clinically significant and relevant abnormalities as evaluated by satisfactory medical assessment
  • Planned de novo removal of myoma (includes mural and combination of mural and pedunculated myoma)
  • Willing, able and likely to fully comply with study procedures and restrictions
  • Given written, personally signed and dated informed consent to participate in the study as approved by the Institutional Review Board/Ethics Committee of the respective Clinical Study Site.

Exclusion criteria

Exclusion Criteria:

  • Pre-Operative Exclusion Criteria:
  • Women who have completed their family planning
  • Current pregnancy including ectopic pregnancy
  • Breastfeeding
  • 6 weeks post-partum
  • Participation in another clinical study currently or within the last 30 days prior to enrolment
  • SGOT, SGPT and/or bilirubin > 20% above the upper range of normal and considered clinically significant
  • BUN and creatinine > 30% above the upper range of normal and considered clinically significant
  • Concurrent use of systemic corticosteroids, antineoplastic agents and/or radiation
  • Previous radiation therapy
  • Diabetes
  • Clinically relevant haemochromatosis, hepatic, renal, autoimmune, lymphatic, haematological or coagulation disorders
  • Active pelvic or abdominal infection, or other infection with fever (>38°C)
  • Extensive keloid scarring
  • Known allergy to starch-based polymers
  • Known or suspected intolerance or hypersensitivity to the study materials (or closely related compounds) or any of the stated ingredients -Additional surgical procedure non-obstetrics and gynaecology (non- OB/GYN) planned to be performed during the laparoscopic procedure

    ->4 myoma larger than 2 cms on preoperative ultrasound screen

  • Largest myoma \< 2 cms or > 8 cms diameter on pre-operative screen -GNRH agonist/antagonist treatment (except oral contraceptive - combined oestrogen/progesterone) in the 4 weeks prior to study
  • Prior surgery for myoma
  • Previous bowl surgery, excluding appendectomy
  • Prior intra-abdominopelvic adhesive complications Intraoperative Exclusion Criteria
  • Clinical evidence of cancer
  • Clinical evidence of pregnancy including ectopic pregnancy
  • Clinical evidence of rectovaginal endometriosis
  • Clinical evidence of endometriosis American Fertility Society (AFS) class III or IV
  • Use, during this procedure, of any approved or unapproved product or strategy for the purpose of preventing adhesion formation including use of O2 enhanced insufflation
  • If the procedure needs to be performed by a laparotomy (decision made after laparoscopy has commenced) the patient must be withdrawn
  • Any unplanned surgery which involves opening of the bowel or urinary tract
  • Where hysteroscopy is required and it cannot be delayed until after removal of fibroid
  • Only pedunculated fibroids
  • Extensive pelvic adhesions (AFS severe adhesion score) or frozen pelvis
  • Adhesions that would require lysing during planned myomectomy surgery Other than inconsequential filmy adhesions that do not require specific lysing to access operative site
  • If pneumoperitoneum exceeds 90 minutes duration the patient will be assessed as a separate surgical covariate group for secondary endpoints only
  • Use of fibrin glue
  • Detection of myoma which are not suitable for surgery during the study procedure
05

Study design

Phase
Phase 1
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
30 participants (estimated)

Study arms

  • Experimental
    ADBLOCK +laparoscopic surgery

    Adhesion Barrier System is site-specific sprayable adhesion barrier gel administered on the surgical field to reduce risk of adhesion formation.

    Device: ADBLOCK

  • No intervention
    laparoscopic surgery

    Laparoscopic surgery only without use of adhesion barrier

Interventions

  • DeviceADBLOCK

    Laparoscopic surgery

    Also known as: Adhesion Barrier System

06

What researchers measure

Primary outcomes

  1. Safety as evaluated by assessment of adverse events in ADBLOCK and surgery only group

    The rate of adverse events will be compared in treatment arm and control arm

    Time frame: up to 28 days

Secondary outcomes

  1. Postoperative recovery

    Time frame: up to 28 days

  2. Safety as evaluated by assessment of adverse events in ADBLOCK and surgery only group

    Time frame: up to 24 months

  3. Pain

    Time frame: before discharge, 7d, 14d, 1mo, 3mo, 6mo, 12mo, 24mo

  4. Unanticipated device-related adverse events

    Time frame: before discharge, 7d, 14d, 1mo, 3mo, 6mo, 12mo, 24mo

  5. Pregnancy (in women seeking to become pregnant)

    Time frame: 3mo, 6mo, 12mo, 24mo

  6. Menstrual Cycle

    Time frame: 1m, 3mo, 6mo, 12mo, 24mo

  7. Miscarriage

    Time frame: 1mo, 3mo, 6mo, 12mo, 24mo

  8. Procedure related hospital readmission

    Time frame: 7d,14d, 1mo, 3mo, 6mo, 12mo, 24mo

  9. Impact of covariates / Including length of pneumoperitoneum

    Time frame: before discharge, 7d,14d, 1mo, 3mo, 6mo, 12mo, 24mo

07

Study locations

3 sites
  • Klinik für Minimal Invasive Chirurgie
    Berlin, 14129, Germany
  • Johanna Etienne Krankenhaus Neuss
    Neuss, 41462, Germany
  • Pius Krankenhaus Oldenburg
    Oldenburg, 26121, Germany
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 6, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01745432
Lead sponsor
Terumo Europe N.V.
Responsible party
Sponsor
First posted
Dec 10, 2012
Start date
Aug 2012
Primary completion
Aug 2015
Completion
Sep 2015
Last update
Jul 6, 2016

Study contacts

Rudy-Leon De Wilde, MD PhD
principal investigator · Pius Krankenhaus Oldenburg

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Jul 2016. You cannot join it, but the record below documents what was studied.

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