CClinicalTrials.gg
Status unknownNCT04426760FINUpdated Jun 11, 2020

Fibroids and Infertility - a Study of the Significance of Removal of Fibroids With Regard to Endometrial Receptivity

An observational study in Leiomyoma, Uterine, sponsored by Oslo University Hospital. Status unknown at 1 site in Norway. Open to female participants aged 18 Years to 40 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-06-11.

Sponsored by Oslo University Hospital · Observational

The sponsor has not verified this record recently (last verified Jun 2020), so the status shown — last known as Recruiting — may be out of date.
Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
80
Ages
18 Years to 40 Years
Sex
Female
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Study summary

We aim to explore some of the molecular factors that reduce fertility for women with leiomyomas, taking into account leiomyoma location, size, number and vascularity. Tissue samples from the endometrium and leiomyomas will be obtained during the mid secretory phase before and 3-6 months after surgical excision for a comprehensive search for key molecular derangements.

Read the detailed description

Baseline medical information and standard questionnaire to record symptoms are collected from all participants and a gynaecological examination and a 2D and 3D vaginal ultrasonography including saline infusion sonography (SIS), if indicated, are performed. Blood samples for the biobank for extraction of germ line DNA and for identification of possible biomarkers are taken.

The women with submucosal leiomyomas will undergo hysteroscopic myomectomy and the women with intramural leiomyomas will undergo myomectomy per laparoscopy or laparotomy.

For the participants with intramural leiomyomas and the fertile/infertile controls, endometrial samples are taken with an endometrial suction curette in an outpatient setting at day 19-23 of the menstrual cycle. The endometrial sampling in the group of women with submucosal leiomyomas is being done during the hysteroscopic removal of the leiomyoma, also at day 19-23 of the menstrual cycle.

3-6 months after surgery, cycle day 19-23, endometrial samples will be taken from the women who have undergone myomectomy and ultrasound examination is being performed. The women with submucosal leiomyomas will undergo a second look hysteroscopy

02

Conditions studied

  • Leiomyoma, Uterine

Keywords

  • Infertility
  • Endometrial receptivity
  • Leiomyoma
  • Fibroid
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In context

Leiomyoma

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

This study's planned enrollment of 80 is below the median of 150 across 119 observational studies indexed under Leiomyoma.

Browse Leiomyoma studies →

Lead sponsor

Oslo University Hospital is the lead sponsor of 810 studies on the registry; 148 are open to participants now.

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

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Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

Patients referred to the Department of Gynaecology at Oslo University Hospital for treatment of submucosal or intramural leiomyomas.

Inclusion criteria

  • Age: 18 to 40 years
  • Presence of leiomyoma(s)
  • Regular menstrual cycle (28 +/- 7 days)
  • Having had at least 2 normal menstrual cycles after ending the treatment if previously treated with GnRH analogue
  • Signed informed consent

Exclusion criteria

Exclusion Criteria:

  • No treatment indication (no symptoms and/or no desire for fertility)
  • Contraindication for surgery
  • Known endometriosis
  • Known PCOS
  • Untreated hydrosalpinx
  • Malignancy; gynaecological or other location
  • Pre-malignant or malignant pap smear or endometrial biopsy
  • Hormonal treatment including ulipristal acetat and levonorgestrel intrauterine device last three months before inclusion in the study
  • Ongoing treatment with GnRH analogue
  • Pregnancy last 3 months
  • Ongoing lactation
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Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
80 participants (estimated)
Target follow-up
2 Years
Patient registry
Yes
Biospecimen retention
Samples with dna

Groups and cohorts

  • Women with submucosal leiomyoma(s)

    Women with submucosal leimyomas undergoing hysteroscopical removal of the leiomyoma

    Procedure: Transcervical resection of fibroids

  • Women with intramural leiomyomas

    Women with intramural leiomyomas undergoing myomectomy

    Procedure: Myomectomy per laparoscopy or laparotomy

  • Infertility patients

    Patients treated at the Department for Reproductive Medicine at the Oslo University hospital failing to conceive after 3 or more embryo transfers with good quality embryos.

  • Fertile women

    Healthy, volunteering women with proved fertility with 1 or more deliveries and no history of infertility

Interventions

  • ProcedureTranscervical resection of fibroids

    Transcervical resection of fibroids

  • ProcedureMyomectomy per laparoscopy or laparotomy

    Myomectomy per laparoscopy or laparotomy

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What researchers measure

Primary outcomes

  1. HOXA 10 expression

    Fold change of HOXA 10 Expression 3-6 months after myomectomy compared to pre-surgery Levels

    Time frame: 3-6 months

Secondary outcomes

  1. Expression of other molecular markers

    Fold change of other molecular markers than HOXA 10 of endometrial receptivity 3-6 months after myomectomy and compared to fertile/infertile controls

    Time frame: 3-6 months

  2. Endometrial vascular pattern

    VI and FI of the endometrium and subendometrial myometrium of women with leimyomas 3-6 months after myomectomy and compared to fertile/infertile controls

    Time frame: 3-6 months

  3. Vascular characteristics of leiomyomas

    Vascular characteristics of leiomyomas associated with endometrial changes

    Time frame: 3-6 months

  4. Leiomyoma size

    Leiomyomas size in centimeters associated with endometrial changes

    Time frame: 3-6 months

  5. Leiomyoma location

    Leiomyoma location associated with endometrial changes

    Time frame: 3-6 months

  6. Genomic characteristics

    Genomic characteristics of leiomyomas associated with endometrial changes

    Time frame: 3-6 months

  7. Scar formation

    Scar/fibrosis/adhesion formation after myomectomy; macroscopically and histologically

    Time frame: 3-6 months

  8. Pregnancy

    Pregnancy and deliveries within 2 years after myomectomy.

    Time frame: 2 years

  9. HOXA10 in endometrium of women with leiomyomas compared to fertile/infertile controls

    Difference in HOXA 10 expression in endometrium of women with leiomyomas compared to fertile/infertile controls

    Time frame: 3-6 months

  10. Expression of molecular markers adjacent to the leiomyoma versus remote from the leiomyoma

    Difference in expression of molecular markers in endometrium adjacent to the leiomyoma compared to endometrium remote from the leiomyoma.

    Time frame: 3-6 months

  11. Partially resected leiomyomas

    Alterations in molecular markers of endometrial receptivity after partially resected submucosal leiomyomas.

    Time frame: 3-6 months

  12. Submucosal leiomyomas versus intramural leiomyomas

    Difference in expression of molecular markers in endometrium of women with submucosal leiomyomas compared with endometrium in women with intramural leiomyomas.

    Time frame: 3-6 months

  13. Biomarkers in blood

    Biomarkers in blood related to leiomyomas and a possible correlation between certain biomarkers and reduced endometrial receptivity.

    Time frame: 1 year

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Study locations

1 of 1 sites recruiting
  • Oslo University Hospital
    Oslo, Norway
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 11, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04426760
Lead sponsor
Oslo University Hospital
Responsible party
Kirsten Hald, MD, PhD (Senior Consultant, Oslo University Hospital) — Principal investigator
First posted
Jun 11, 2020
Start date
Mar 1, 2019
Primary completion
Sep 15, 2021 (estimated)
Completion
Sep 15, 2024 (estimated)
Last update
Jun 11, 2020

Study contacts

Thea F. Mikkelsen, MD
Contact
themik@ous-hf.no
004797612934
Kirsten Hald, PhD
Contact
UXKILD@ous-hf.no
004795224181

Oversight

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

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