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Not yet recruitingNCT05037552FLOKIPUpdated Mar 13, 2023

Benefit of Hemostatic Sealant in Preservation of Ovarian Reserve

An interventional study of Bipolar coagulation and Coagulation by FLOSEAL haemostatic agent in Benign Ovarian Cyst and Cystectomy, sponsored by University Hospital, Montpellier. Not yet recruiting at 2 sites in France. Open to female participants aged 18 Years to 45 Years. Per ClinicalTrials.gov, last updated 2023-03-13.

Sponsored by University Hospital, Montpellier · Not applicable, Interventional, and Health services research

From the registry’s dates

  • Primary completion was expected by Jan 2025, 1 year 8 months ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years to 45 Years
Sex
Female
01

Study summary

Introduction : The most common technique used for ovarian cystectomy is the stripping technique. After stripping the cyst wall, the subsequent bleeding of the ovarian stromal wound is usually controlled by bipolar coagulation or/and by suturing. However, hemostasis achieved with bipolar coagulation could result in damage to the ovarian reserve. To avoid damage to healthy ovarian tissue, hemostasis using various topical hemostatic agents has been introduced to control post- cystectomy ovarian wound bleeding. Among these, FloSeal (Baxter Healthcare Corporation, Deer- field, IL, USA) is a hemostatic sealant composed of a gelatin-based matrix and thrombin solution.

Aim: The aim of the study is to evaluate the impact of topical hemostatic sealants and bipolar coagulation during laparoscopic ovarian benign cyst resection on ovarian reserve by comparing the rates of decrease in anti- Müllerian hormone (AMH).

Methods: A randomized prospective data collection was made on women aged 18-45 years who planned to have laparoscopic ovarian cystectomy at one of two institutions (n = 80), Montpellier University Hospital and Nimes University Hospital, France. Patients were randomly divided into two groups treated with either a topical hemostatic sealant (Floseal) or bipolar coagulation for hemostasis. Preoperative, 3-month and 6-month postoperative AMH levels were checked and the rates of decrease of AMH were compared.

02

Conditions studied

  • Benign Ovarian Cyst
  • Cystectomy

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Keywords

  • Ovarien cyst
  • Bipolar
  • Ovarian reserve
  • Hemostatic agent
  • Coelioscopy
03

In context

Ovarian Cysts

73 studies on the registry are indexed under Ovarian Cysts; 15 are open to participants now.

This study's planned enrollment of 100 is above the median of 67 across 48 interventional studies indexed under Ovarian Cysts.

Browse Ovarian Cysts studies →

Lead sponsor

University Hospital, Montpellier is the lead sponsor of 1,244 studies on the registry; 225 are 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

  • Cyst diameter between 3 and 10cm
  • Preoperative AMH level >0,5ng/ml
  • Understanding and acceptance of the protocol

Exclusion criteria

Exclusion Criteria:

  • Post-menopausal status
  • Any suspicious finding of malignant ovarian disease
  • Change of contraception method leading to AMH variation
  • Allergy to bovine products found before inclusion
  • Pregnancy
  • Patient who has already participated in the protocol
  • Person deprived of liberty by judicial or administrative decision
  • Person protected by law, under tutorship or curatorship
  • Patient participating in another interventional research on the human person in progress
  • Refusal of participation after a period of reflection
  • Patient not affiliated or beneficiary of a national health insurance system
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Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
100 participants (estimated)

Study arms

  • Active comparator
    BIPOLAR FORCEPS

    The bipolar forceps allow electrocoagulation and are part of the standard laparoscopy box, delivered by the sterilization service to the gynecology operating room.

    Procedure: Bipolar coagulation

  • Experimental
    FLOSEAL

    FLOSEAL® is a hemostatic agent based on gelatin of bovine origin added to thrombin of human origin. It is a recommended medical device in surgical procedures as an adjunct to hemostasis when control of bleeding, arterial jet seepage, ligation or any other conventional method proves impractical or ineffective. During this study, it will be used in 1st intention.

    Procedure: Coagulation by FLOSEAL haemostatic agent

Interventions

  • ProcedureBipolar coagulation

    Cystectomy will be done via laparoendoscopic surgery After identifying the correct plane of cleavage, the stripping technique will be used. The cyst wall will be gently pulled down from the remaining ovary with two pairs of atraumatic forceps. Once the whole cyst wall will be separated from the ovary cortex, bleeding of the remaining ovarian stromal tissue will be controlled by bipolar coagulation. Then, the remnant tissue will be examined using irrigation and coagulated with minimal bipolar power (20-W current) on any sites that are bleeding.

  • ProcedureCoagulation by FLOSEAL haemostatic agent

    Cystectomy will be done via laparoendoscopic surgery After identifying the correct plane of cleavage, the stripping technique will be used. The cyst wall will be gently pulled down from the remaining ovary with two pairs of atraumatic forceps. Once the whole cyst wall will be separated from the ovary cortex, bleeding of the remaining ovarian stromal tissue will be controlled by either hemostatic sealants (FloSeal). Using a laparoscopic applicator, FloSeal will be applied to the surface of bleeding sites under direct vision and the ovarian cortex was gently pressed for 2 min with small gauze.

06

What researchers measure

Primary outcomes

  1. Serum anti-Mullerian hormone (AMH) level preoperative

    A biological assessment with determination of the serum AMH level will be carried out for each patient during the preoperative consultation.

    Time frame: Between 2 and 17 days before cystectomy

  2. Serum anti-Mullerian hormone (AMH) level at 3 months

    A biological assessment with determination of the serum AMH level will be carried out for each patient, 3 months postoperatively.

    Time frame: 3 months after the cystectomy

  3. Serum anti-Mullerian hormone (AMH) level at 6 months

    A biological assessment with determination of the serum AMH level will be carried out for each patient, 6 months postoperatively.

    Time frame: 6 months after the cystectomy

Secondary outcomes

  1. Time to achieve hemostasis

    The time is measured in minutes from the end of the cystectomy to the end of hemostasis.

    Time frame: From the end of the cystectomy to the end of hemostasis (up to 1 hour)

  2. Use of additional hemostatsis technique

    Another technique can be used to achieve hemostasis: bipolar forceps, suture or second hemostasis agent. The other technique will be specified if it is used

    Time frame: From the end of the cystectomy to the end of hemostasis, during surgery

  3. Blood loss

    Blood loss will be measured in ml throughout the surgery.

    Time frame: From the start of the surgery to the end of hemostasis

  4. Intraoperative adverse effects

    Adverse effects related to the coagulation procedure will be collected.

    Time frame: From the end of the cystectomy to the end of hemostasis

  5. Revision surgery for bleeding at the operative site

    In the event of bleeding at the operative site, revision surgery may be necessary. In this case the information will be collected.

    Time frame: From the end of the cystectomy to the end of hemostasis

07

Study locations

2 sites
  • CHU de Montpellier
    Montpellier, 34295, France
    • Martha DURAES, MD · Contact · m-duraes@chu-montpellier.fr · +334.67.33.65.32
    • Martha DURAES, MD · Principal investigator
    • Gauthier RATHA, MD · Sub investigator
    • Lucie REBEL, MD · Sub investigator
    • Clara COMPAN, MD · Sub investigator
    • Emmanuelle VINTEJOUX, MD · Sub investigator
    • Claire VINCNS, MD · Sub investigator
  • CHU de Nîmes
    Nîmes, 30029, France
    • Renaud DE TAYRAC, MD PhD · Contact · renaud.detayrac@chu-nimes.fr
    • Renaud DE TAYRAC, MD PhD · Principal investigator
    • Stéphanie HUBERLAND, MD · Sub investigator
08

References and documents

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 13, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05037552
Lead sponsor
University Hospital, Montpellier
Collaborators
Baxter Healthcare Corporation
Responsible party
Sponsor
First posted
Sep 8, 2021
Start date
Sep 30, 2023 (estimated)
Primary completion
Jan 30, 2025 (estimated)
Completion
Sep 30, 2025 (estimated)
Last update
Mar 13, 2023

Study contacts

Martha DURAES, MD
Contact
m-duraes@chu-montpellier.fr
+334 67 33 65 32
Amélie DENOUEL, CRA
Contact
a-denouel@chu-montpellier.fr
+334 67 33 55 72
Martha DURAES, MD
study director · Montpellier University Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

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