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Follicle Activation by Inhibition of the Hippo Pathway

Auto-transplantation of Fragmented Ovarian Cortical Tissue in Infertile Patients With Premature Ovarian Oocyte Depletion - a Study to Promote Follicular Activation and Subsequent Fertility

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02792569
Enrollment
20
Registered
2016-06-07
Start date
2016-04-30
Completion date
2019-01-31
Last updated
2020-01-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertility

Keywords

IVA, Hippo Pathway, Follicle activation, Low Responder, POI, Poor Ovarian Reserve, Poor Ovarian Response, Salvador/Warts/Hippo pathway

Brief summary

The aim of this project is to activate recruitment and growth of resting primordial follicles in the ovaries of women with diminished ovarian reserve, in attempt to increase the chance to become pregnant, either naturally or after assisted reproduction.

Detailed description

For this study investigators will carefully select 20 women with low AMH and imminent POI. They will be randomized to have cortical ovarian biopsies taken from either the left or right ovary. The biopsies will be fragmented in 1x1 mm2 pieces and immediately auto-transplanted in a peritoneal pocket under the right ovary. The contralateral untouched ovary will act as the control, making each woman their own control. Follow up: each week in 2,5 months the women will be assessed by transvaginal ultrasound and hormonal status. After 2,5-6 months the women will receive a FSH stimulation cycle (rFSH 300 IU or Corifollitropin) followed by standard IVF/ICSI, Hypothesis: the ovaries contain a pool of resting primordial follicles. By fragmentation of cortical ovarian tissue, manipulation of the local environment in the tissue will inhibit the Hippo Pathway and hereby active recruitment and growth of primordial follicles.

Interventions

PROCEDUREBiopsy of ovarian cortical tissue

Biopsies will be taken from either right or left side. The cortical tissue will be isolated and fragmented in 1x1 mm2 pieces, followed by auto-transplantation to a peritoneal pocket.

Sponsors

Anders Nyboe Andersen
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Investigator)

Eligibility

Sex/Gender
FEMALE
Age
25 Years to 39 Years
Healthy volunteers
No

Inclusion criteria

* Infertility with indication for IVF/ICSI * Imminent POI, still cycling * Age 25 - 39 years * Two ovaries * Serum AMH measurements \< 5 pmol/l (two independent measurements) * Antral follicle count (AFC) (sum of both ovaries \< 5)

Exclusion criteria

* Ovarian pathology (endometriosis, cysts) * Known chromosomal abnormality * Known autoimmune disease (except TPO-antibodies) * Patients who have contraindication for laparoscopy

Design outcomes

Primary

MeasureTime frameDescription
Number of follicles > 12 mmUp to 6 month after the auto-transplantationNumber of follicles \> 12 mm in response to controlled ovarian stimulation with corifollitropin from the biopsied ovary versus the contralateral untreated ovary

Secondary

MeasureTime frameDescription
Side of ovulationUp to 6 months after auto-transplantationFrequency of ovulations occurring at the biopsy side versus the contralateral side in the subsequent 4- 6 months

Other

MeasureTime frameDescription
AFC countUp to 10 month after auto-transplantationNumber of antral follicles (AFC) at the biopsy side versus that of the contralateral side
AMH changesUp up to 10 month after auto-transplantationChanges (increase - decrease) in serum AMH over time, using the highly sensitive new AMH Assay (Elecsys Assay; Roche), which has been implemented as a routine analysis at The Department of Clinical Biochemistry Rigshospitalet in June 1st 2015
PregnancyThrough study completion, an average of 1 yearNumbers of pregnancies (spontaneously/assisted)

Countries

Denmark

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026