Evaluation of the Non-inferiority of Resorbable Gelatin Embolization Compared to Embolization Combined With Endometrial Aspiration for the Management of Hemorrhagic Uterine Vascular Abnormalities Following Premature Termination of Pregnancy
NIEMBUT
1 other identifier
interventional
110
1 country
4
Brief Summary
The goal of this clinical trial is to determine the best treatment for patients who experience vaginal bleeding following a premature termination of pregnancy. The main questions it aims to answer are:
- Evaluate the effectiveness of embolization alone versus embolization followed by aspiration in stopping bleeding
- Evaluate its effectiveness in restoring the menstrual cycle.
- What are the complications associated with the two procedures?
- What is their impact on future fertility? The researchers will evaluate the patients over a period of 12 months. Participants will:
- Undergo one of the two procedures (procedure 1: embolization alone and procedure 2: embolization combined with aspiration).
- Will participate in regular follow-ups to monitor the risk of recurrence of -bleeding and complications associated with the two treatments
- Will undergo imaging tests to assess the persistence of bleeding after the procedure
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Jan 2026
Typical duration for not_applicable
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 25, 2025
CompletedFirst Posted
Study publicly available on registry
October 3, 2025
CompletedStudy Start
First participant enrolled
January 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2028
October 3, 2025
September 1, 2025
2.2 years
September 25, 2025
September 25, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Clinical success post-procedure as assessed by Doppler-ultrasound
The primary endpoint is clinical success defined by a null uterine cavity on follow-up Doppler ultrasound and no persistent or recurrent bleeding requiring a new procedure
From baseline to 3 months after procedure
Secondary Outcomes (7)
Persistence or recurrence of bleeding at 1 month follow-up in both groups.
From baseline to 1 month
Safety of both treatments
Fom intervention to 90 days after
the effectiveness of embolization alone compared to embolization followed by uterine evacuation at 1 month after procedure
From intervention to 1 month
the effectiveness of embolization alone compared to embolization followed by uterine evacuation at 3 months after procedure
From intervention to 3 months
the impact of embolization alone compared to embolization followed by aspiration on the resumption of the menstrual cycle
From intervention to 12 months
- +2 more secondary outcomes
Study Arms (2)
embolization therapy
EXPERIMENTALPatients will undergo embolization alone, which involves temporarily blocking the uterine artery or arteries supplying a hypervascular abnormality using resorbable gelatin fragments.
Embolization followed by aspiration
ACTIVE COMPARATORPatients will undergo embolization prior to endometrial aspiration. Embolization will be performed in the same manner as in group "Embolization alone" but will be followed within 48 hours by a second procedure to remove the intrauterine residue that will have been devascularized (= deprived of blood) by the embolization.
Interventions
Patients will undergo embolization alone, which involves temporarily blocking the uterine artery or arteries supplying a hypervascular abnormality using resorbable gelatin fragments.
Patients will undergo embolization prior to endometrial aspiration. Embolization will be performed in the same manner as in group "Embolization alone" but will be followed within 48 hours by a second procedure to remove the intrauterine residue that will have been devascularized (= deprived of blood) by the embolization.
Eligibility Criteria
You may qualify if:
- Patient who experienced a miscarriage within 3 months
- Patient with gynecological bleeding
- Patient presenting with hypervascularized uterine retention with negative Doppler ultrasound findings (endometrial hypervascularization with 1) systolic peak velocity greater than 70 cm/s and/or 2) resistance index (RI) within the retention \< 0.5)
- Patient affiliated to french social security
- Patient who has signed the written informed consent form
You may not qualify if:
- Patient presenting to the emergency department with hemorrhagic shock: systolic blood pressure \< 90 mmHg associated with tachycardia \> 120 bpm
- Severe renal failure (glomerular filtration rate \< 30 mL/min)
- Medical history of severe allergy to iodinated contrast media
- Severe coagulation disorders (platelets \<50G/L, PT \< 50%)
- Anticoagulant and/or antiplatelet agent that cannot be discontinued a few days before the procedure
- Patient referred to in Articles L1121-5, L1121-6, and L1121-8 of the French Public Health Code
- Staff with a hierarchical relationship to the principal investigator
- Patient cannot be contacted in an emergency
- Participation in other interventional studies during the study period
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University Hospital, Grenoblelead
- University Hospital, Bordeauxcollaborator
- University Hospital, Clermont-Ferrandcollaborator
- Centre Hospitalier Universitaire Saint Etienne, France, 43055collaborator
Study Sites (4)
CHU de Bordeaux
Bordeaux, 33000, France
CHU de Clermont-Ferrand-Gabriel Montpied
Clermont-Ferrand, 63000, France
CHU Grenoble Alpes
Grenoble, 38000, France
CHU de St Etienne-Hôpital Nord
Saint-Etienne, 42000, France
Related Publications (13)
McCracken G, Houston P, Lefebvre G; Society of Obstetricians and Gynecologists of Canada. Guideline for the management of postoperative nausea and vomiting. J Obstet Gynaecol Can. 2008 Jul;30(7):600-7, 608-16. doi: 10.1016/s1701-2163(16)32895-x. English, French.
PMID: 18644183BACKGROUNDHuchon C, Drioueche H, Koskas M, Agostini A, Bauville E, Bourdel N, Fernandez H, Fritel X, Graesslin O, Legendre G, Lucot JP, Panel P, Raiffort C, Giraudet G, Bussieres L, Fauconnier A. Operative Hysteroscopy vs Vacuum Aspiration for Incomplete Spontaneous Abortion: A Randomized Clinical Trial. JAMA. 2023 Apr 11;329(14):1197-1205. doi: 10.1001/jama.2023.3415.
PMID: 37039805BACKGROUNDKimura Y, Osuga K, Nagai K, Hongyo H, Tanaka K, Ono Y, Higashihara H, Matsuzaki S, Endo M, Kimura T, Tomiyama N. The efficacy of uterine artery embolization with gelatin sponge for retained products of conception with bleeding and future pregnancy outcomes. CVIR Endovasc. 2020 Feb 12;3(1):13. doi: 10.1186/s42155-020-00107-4.
PMID: 32052234BACKGROUNDMathieu E, Riethmuller D, Delouche A, Sicot M, Teyssier Y, Finas M, Guillaume B, Thony F, Ferretti G, Ghelfi J. Management of Symptomatic Vascularized Retained Products of Conception by Proximal Uterine Artery Embolization with Gelatin Sponge Torpedoes. J Vasc Interv Radiol. 2022 Nov;33(11):1313-1320. doi: 10.1016/j.jvir.2022.07.018. Epub 2022 Jul 19.
PMID: 35868595BACKGROUNDDeans R, Abbott J. Review of intrauterine adhesions. J Minim Invasive Gynecol. 2010 Sep-Oct;17(5):555-69. doi: 10.1016/j.jmig.2010.04.016. Epub 2010 Jul 24.
PMID: 20656564BACKGROUNDTam WH, Lau WC, Cheung LP, Yuen PM, Chung TK. Intrauterine adhesions after conservative and surgical management of spontaneous abortion. J Am Assoc Gynecol Laparosc. 2002 May;9(2):182-5. doi: 10.1016/s1074-3804(05)60129-6.
PMID: 11960045BACKGROUNDGilbert A, Thubert T, Dochez V, Riteau AS, Ducloyer M, Ragot P, Frampas E, Douane F, David A. Angiographic findings and outcomes after embolization of patients with suspected postabortion uterine arteriovenous fistula. J Gynecol Obstet Hum Reprod. 2021 Sep;50(7):102033. doi: 10.1016/j.jogoh.2020.102033. Epub 2020 Dec 7.
PMID: 33301980BACKGROUNDCamacho A, Ahn EH, Appel E, Boos J, Nguyen Q, Justaniah AI, Faintuch S, Ahmed M, Brook OR. Uterine Artery Embolization with Gelfoam for Acquired Symptomatic Uterine Arteriovenous Shunting. J Vasc Interv Radiol. 2019 Nov;30(11):1750-1758. doi: 10.1016/j.jvir.2019.04.002. Epub 2019 Aug 10.
PMID: 31409569BACKGROUNDVyas S, Choi HH, Whetstone S, Jha P, Poder L, Shum DJ. Ultrasound features help identify patients who can undergo noninvasive management for suspected retained products of conception: a single institutional experience. Abdom Radiol (NY). 2021 Jun;46(6):2729-2739. doi: 10.1007/s00261-020-02948-y. Epub 2021 Jan 18.
PMID: 33459841BACKGROUNDTimmerman D, Wauters J, Van Calenbergh S, Van Schoubroeck D, Maleux G, Van Den Bosch T, Spitz B. Color Doppler imaging is a valuable tool for the diagnosis and management of uterine vascular malformations. Ultrasound Obstet Gynecol. 2003 Jun;21(6):570-7. doi: 10.1002/uog.159.
PMID: 12808674BACKGROUNDKamaya A, Petrovitch I, Chen B, Frederick CE, Jeffrey RB. Retained products of conception: spectrum of color Doppler findings. J Ultrasound Med. 2009 Aug;28(8):1031-41. doi: 10.7863/jum.2009.28.8.1031.
PMID: 19643786BACKGROUNDForeste V, Gallo A, Manzi A, Riccardi C, Carugno J, Sardo ADS. Hysteroscopy and Retained Products of Conception: An Update. Gynecol Minim Invasive Ther. 2021 Nov 5;10(4):203-209. doi: 10.4103/GMIT.GMIT_125_20. eCollection 2021 Oct-Dec.
PMID: 34909376BACKGROUNDQuenby S, Gallos ID, Dhillon-Smith RK, Podesek M, Stephenson MD, Fisher J, Brosens JJ, Brewin J, Ramhorst R, Lucas ES, McCoy RC, Anderson R, Daher S, Regan L, Al-Memar M, Bourne T, MacIntyre DA, Rai R, Christiansen OB, Sugiura-Ogasawara M, Odendaal J, Devall AJ, Bennett PR, Petrou S, Coomarasamy A. Miscarriage matters: the epidemiological, physical, psychological, and economic costs of early pregnancy loss. Lancet. 2021 May 1;397(10285):1658-1667. doi: 10.1016/S0140-6736(21)00682-6. Epub 2021 Apr 27.
PMID: 33915094BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Julien Ghelfi
CHU Grenoble Alpes
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Masking Details
- the radiologist who performs the ultrasounds will be blinded to the evaluation of the primary judgment criterion (he will not have information regarding the group assigned to the patient).
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 25, 2025
First Posted
October 3, 2025
Study Start
January 1, 2026
Primary Completion (Estimated)
March 1, 2028
Study Completion (Estimated)
December 31, 2028
Last Updated
October 3, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will not share