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Uterine PolypsHYPHOPNCT07908615

Office Hysteroscopy Versus Operating-room Hysteroscopy for Uterine Lesions

A study testing Operating-room hysteroscopy with resectoscope and Outpatient hysteroscopic morcellation/aspiration in people with Uterine Polyps and Uterine Fibroids, run by Nantes University Hospital at 9 sites in France.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

HYPHOP is a multicenter, randomized clinical trial comparing two care pathways for women who need operative hysteroscopy to treat intrauterine lesions, such as uterine polyps, small submucosal fibroids, or retained pregnancy tissue. Participants will be randomly assigned to one of two groups. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Operating-room hysteroscopy with resectoscope and Outpatient hysteroscopic morcellation/aspiration
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
474 participants
Where
9 sitesFrance
Study dates
Nov 2026to Mar 2030
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Female participants aged 18 years or older.
  • One or more intrauterine submucosal fibroids, FIGO types 0, 1 or 2, measuring 2 cm or less, confirmed by diagnostic hysteroscopy; OR one or more intrauterine polyps confirmed by diagnostic hysteroscopy; OR retained pregnancy tissue confirmed by diagnostic hysteroscopy.
  • Willingness to participate and provision of written informed consent.
  • Willingness to complete follow-up for at least 12 months after the intervention and, when the intervention is delayed after inclusion, for up to 16 months from inclusion.
  • Affiliation with or entitlement to a health insurance scheme.

Who cannot join

  • Does not wish to undergo surgical treatment.
  • Anticoagulant treatment that prevents outpatient operative hysteroscopy.
  • Pregnancy or breastfeeding.
  • Active pelvic or genital infection.
  • Adult under a legal protection measure.
  • Inability to complete the study questionnaires.
  • Placement under judicial safeguard

Trial locations and contacts

9 sites in 1 country. Contact the study team or a site near you to ask about taking part.

Selma El Andaloussi, Project manager contact

+33253482852

selma.elandaloussi@chu-nantes.fr

9 sites in 1 country

France9 sites
  • Hopital ESTAING

    Clermont-Ferrand, 63100

    Dr Anne-Sophie GREMEAU, NK, asgremeau@chu-clermontferrand.fr

    Anne-Sophie GREMEAU, Dr

  • Hôpital intercommunal de Créteil

    Créteil, 94010

    Yann SALHI, Dr, NK, yann.salhi@chicreteil.fr

    Yann SALHI, Dr

  • GHEM Simone VEIL Site Eaubonne

    Eaubonne, 95602

    Elie MIKHAEL, Dr, NK, elie.mikhael@ch-simoneveil.fr

    Elie MIKHAEL, Dr

  • Ch Marmande Chic

    Marmande, 47200

    Nicolas NOCART, Dr, NK, nicolas.nocart@chicmt.fr

    Nicolas NOCART, Dr

  • APHM Hopital Nord

    Marseille, 13015

    Antoine NETTER, Dr, NK, antoine.netter@ap-hm.fr

    Antoine NETTER, Dr

  • CHU Saint Louis site Lariboisière - APHP-

    Paris, 75010

    Jeremy SROUSSI, Dr, NK, jeremy.sroussi@gmail.com

    Jeremy SROUSSI, Dr

  • Chu Pitie Salpetriere

    Paris, 75013

    Geoffroy CANLORBE, Dr, geoffroy.canlorbe@aphp.fr

    Geoffroy CANLORBE

  • CHU Robert Debré APHP

    Paris, 75019

    Svetlana LEVINTA, Dr, NK, svetlana.levinta@aphp.fr

    Svetlana LEVINTA, Dr

  • CHI Poissy

    Poissy, 78300

    Rosa Montero-Macias, Dr, +33139274577, rosa.montero@ght-yvelinesnord.fr

    Rosa MONTERO-MACIAS, Dr

Other trials in France

About this study

Official title: Cost-utility Analysis of Office Hysteroscopic Morcellation/Aspiration Versus Conventional Operating-room Resectoscopy for Intrauterine Pathologies

HYPHOP is a multicenter, randomized clinical trial comparing two care pathways for women who need operative hysteroscopy to treat intrauterine lesions, such as uterine polyps, small submucosal fibroids, or retained pregnancy tissue.

Participants will be randomly assigned to one of two groups. The first group will undergo hysteroscopic morcellation/aspiration in an outpatient consultation room, without requiring an operating room. The second group will undergo hysteroscopy using a resectoscope in the operating room, usually under general or regional anesthesia.

Read more

The main objective is to determine whether outpatient hysteroscopic morcellation/aspiration provides better value for money than conventional operating-room hysteroscopy, by comparing costs and health-related quality of life over six months from inclusion.

The study will also compare symptoms, quality of life, pain, complications, the need for further treatment, patient and practitioner satisfaction, and healthcare resource use. The hypothesis is that the outpatient care pathway may reduce costs without compromising patient outcomes.

Read the detailed description

HYPHOP is a prospective, multicenter, open-label, randomized controlled trial with two parallel groups. The study evaluates two care pathways for women requiring operative hysteroscopy for intrauterine pathologies.

After diagnostic hysteroscopy confirms the indication for operative treatment, eligible participants who provide written informed consent will complete baseline questionnaires and be randomly assigned to one of two groups. Randomization will be stratified by study center and indication (fibroid, polyp, or retained pregnancy tissue).

In the first group, operative hysteroscopy will be performed using a morcellation/aspiration system in a dedicated outpatient consultation room. Analgesia options may include non-steroidal anti-inflammatory medication, local anesthesia, virtual reality, and/or an equimolar mixture of oxygen and nitrous oxide, according to the participant's preference and clinical circumstances.

In the second group, operative hysteroscopy will be performed using a resectoscope in the operating room, with general or regional anesthesia according to the usual care pathway and the clinical decision.

The intervention may take place on the day of inclusion or subsequently, depending on the assigned care pathway and operating-room or outpatient scheduling, with a maximum delay of four months after inclusion.

The primary objective is to conduct a cost-utility analysis comparing the two care pathways over a six-month horizon from inclusion, using a collective perspective. Health-related quality of life will be measured using the EQ-5D-5L questionnaire at inclusion, three months, and six months. Quality-adjusted life years (QALYs) will be estimated from these measurements, and costs will be compared between groups. The incremental cost-utility ratio will be expressed as cost per QALY, with results also presented as incremental net monetary benefit for different willingness-to-pay values.

The six-month horizon begins at inclusion rather than at the intervention because the time to treatment may differ between the two groups. Consequently, assessments at three and six months from inclusion may occur at different intervals after the intervention in the two groups.

Secondary assessments include treatment completeness, procedure duration, intraoperative complications, pain, analgesic use, symptoms measured using the Higham score and UFS-QoL questionnaire, health-related quality of life, the need for further treatment, healthcare resource use, length of hospital stay, and patient and practitioner satisfaction. A five-year budget impact analysis will also assess scenarios for the national adoption of outpatient hysteroscopic morcellation/aspiration.

The planned sample size is 474 participants.

Being tested
Operating-room hysteroscopy with resectoscope, Outpatient hysteroscopic morcellation/aspiration
Keywords
Hysteroscopy, Hysteroscopic morcellation, Hysteroscopic resectoscopy, Cost-utility analysis, Health-related quality of life, Intrauterine pathology
Medical subject headings
Leiomyoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Operating-room hysteroscopy with resectoscopeProcedure or surgery

    A resectoscope is a surgical instrument used to perform surgical procedures within the uterine cavity. It allows for the examination of the uterus and the treatment of gynecological conditions through the natural passages (vagina, cervix). It provides direct access to the interior of the uterine cavity without the need for an abdominal incision. The procedure is performed in the operating room under general or regional anesthesia.

    The resectoscope is used for myomectomy, polypectomy, resection of retained trophoblasts or placental remnants, or division of a septum

    The procedure is performed as follows:

    1. Positioning of the patient and anesthesia
    2. Insertion of the resectoscope and exploration
    3. Surgical phase
    4. Removal of the resectoscope and monitoring The procedure is contraindicated in cases of active genital infection
  • Outpatient hysteroscopic morcellation/aspirationProcedure or surgery

    The therapeutic hysteroscope with fragmentation and aspiration is a surgical instrument used to perform surgical procedures within the uterine cavity. It allows for the rapid and precise removal of abnormal tissue without the need for incisions. The procedure is performed in a dedicated examination room (clean room).

    It can be used outside the operating room with or without local anesthesia.

    Morcellation/aspiration hysteroscopy is indicated for myomectomy, polypectomy, and resection of retained trophoblasts or placental remnants. The procedure is performed as follows:

    1. Positioning of the patient, with or without multimodal anesthesia
    2. Insertion of the therapeutic fragmentation-aspiration hysteroscope and exploration
    3. Surgical phase
    4. Removal of the therapeutic fragmentation-aspiration hysteroscope and monitoring The procedure is contraindicated in cases of active genital infection
Study groups in NCT07908615
Study groupRoleWhat they receive
Operating-room hysteroscopy with resectoscopeActive comparatorParticipants undergo operative hysteroscopy using a resectoscope in the operating room, with general or regional anesthesia according to the usual care pathway and clinical decision.
Receives: Procedure: Operating-room hysteroscopy with resectoscope
Outpatient hysteroscopic morcellation/aspirationExperimentalParticipants undergo operative hysteroscopy using a morcellation/aspiration system in a dedicated outpatient consultation room, without an operating-room pathway. Analgesia options may include non-steroidal anti-inflammatory medication, local anesthesia, virtual reality and/or an equimolar mixture of oxygen and nitrous oxide, according to participant preference and clinical circumstances.
Receives: Procedure: Outpatient hysteroscopic morcellation/aspiration

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incremental cost-utility ratio of outpatient hysteroscopic morcellation/aspiration versus operating-room resectoscopy

    Cost-utility analysis comparing the two care pathways from a collective perspective. Costs and quality-adjusted life years (QALYs) derived from EQ-5D-5L measurements will be compared between groups. The incremental cost-utility ratio will be expressed as cost per QALY and results will also be presented as incremental net monetary benefit at different willingness-to-pay thresholds.

    Measured: Six months after inclusion

Secondary outcomes (12)
  1. Five-year budget impact of national adoption of outpatient hysteroscopic morcellation/aspiration

    Estimated financial impact for the French National Health Insurance system under scenarios of national adoption of outpatient hysteroscopic morcellation/aspiration instead of operating-room resectoscopy.

    Measured: Five-year time horizon

  2. Completeness of the operative hysteroscopy procedure

    Presence of a residual lesion identified by the surgeon at the end of the procedure.

    Measured: At the end of the procedure

  3. Duration of the operative hysteroscopy procedure

    Time in minutes from insertion of the hysteroscope into the cervical canal to completion of the operative procedure, marked by the final removal of the hysteroscope.

    Measured: During the procedure

  4. Intraoperative complications

    Occurrence of complications including uterine perforation, procedure interruption for any reason, conversion to another technique, or other procedure-related complications specified in the protocol.

    Measured: During the operative procedure

  5. Pain intensity and analgesic use

    Pain assessed using a numerical rating scale and additional analgesic use. For the resectoscope group, immediate postoperative pain is assessed 30 minutes after awakening, with a ±30-minute window.

    Measured: During and at the end of the procedure, immediately after surgery, and at Day 7 after the intervention

  6. Change in symptoms and disease-specific quality of life

    Symptoms assessed using the Higham score and disease-specific quality of life assessed using the UFS-QoL questionnaire, at the time points specified in the protocol.

    Measured: At inclusion; Day 7, Month 1 and Month 12 after intervention; and Months 3 and 6 after inclusion

  7. Health-related quality of life measured using EQ-5D-5L

    Health-related quality of life measured using the EQ-5D-5L questionnaire to estimate QALYs for the cost-utility analysis.

    Measured: At inclusion and at Months 3 and 6 after inclusion

  8. Need for further treatment or repeat intervention

    Proportion of participants requiring further treatment or repeat intervention at the time points specified in the protocol.

    Measured: At Months 1 and 12 after intervention, and Months 3 and 6 after inclusion

  9. Time to treatment, hospital length of stay and healthcare resource use

    Time from inclusion to intervention, hospital length of stay, healthcare consumption and analgesic use after the procedure.

    Measured: From inclusion through the follow-up period, as applicable

  10. Patient satisfaction with the procedure and care pathway

    Satisfaction assessed on a 0-10 scale, including satisfaction with time to treatment, anesthesia, care pathway, procedure and pain management, and willingness to recommend the care pathway.

    Measured: On the day of the procedure and at Day 7 after intervention

  11. Practitioner satisfaction with the procedure and care pathway

    Practitioner satisfaction assessed on a 0-10 scale, including satisfaction with time to treatment, anesthesia, care pathway, procedure and pain management.

    Measured: On the day of the procedure

  12. Acceptability of study participation

    Number of women meeting eligibility criteria who decline participation and reasons for refusal

    Measured: During recruitment

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Nov 2026
  2. Study startNov 2026 (estimated)
  3. Primary completionJun 2029 (estimated)
  4. Study completionMar 2030 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Health services research
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
474 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07908615
Sponsor's protocol ID
RC25_0526
Other IDs
2026-A01251-50
Acronym
HYPHOP
Status last verified
Oct 2026
First submitted
26 Oct 2026
Last updated
2 Nov 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Operating-room hysteroscopy with resectoscope and Outpatient hysteroscopic morcellation/aspiration in people with Uterine Polyps and Uterine Fibroids, run by Nantes University Hospital at 9 sites in France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: opening soon, as of the sponsor's last update on 2 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 9 sites in France. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Pr Thibault THUBERT (+33253482443, thibault.thubert@chu-nantes.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incremental cost-utility ratio of outpatient hysteroscopic morcellation/aspiration versus operating-room resectoscopy (time frame: Six months after inclusion). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Nov 2026.

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