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RIOT C: REDUCING THE IMPACT OF OVARIAN STIMULATION BY ADDING CO-TREATMENT AROMATASE INHIBITOR.

RIOT C: REDUCING THE IMPACT OF OVARIAN STIMULATION. NOVEL APPROACHES TO LUTEAL SUPPORT IN IVF. STUDY 2. - RIOT C. STUDY 2.

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2017-004433-93-DK
Enrollment
26
Registered
2017-11-15
Start date
2018-05-01
Completion date
Unknown
Last updated
2021-12-06

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

Conditions

Ovarian stimulation in oocyte donation MedDRA version: 20.0 Level: LLT Classification code 10071130 Term: Controlled ovarian stimulation System Organ Class: 100000004865 MedDRA version: 20.0 Level: LLT Classification code 10072100 Term: Egg donor System Organ Class: 100000004869

Interventions

Trade Name: Letrozol "Accord" Product Name: Letrozol Product Code: L02BG04 Pharmaceutical Form: Tablet INN or Proposed INN: LETROZOLE CAS Number: 112809-51-5

Sponsors

Nicholas Stephen Macklon, Professor, MD, PhD
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Meet the clinical criteria for acceptance as oocyte donors Regular ovulatory cycle of 26-30 days. Age: = 35 years (the age limit for donating eggs in Denmark) Written consent Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 26 F.1.3 Elderly (>=65 years) no F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: Contraindications for ovarian stimulation or OPU according to local guidelines PCOS Allergy towards study drug Exclusion of patients after earlier inclusion in the study in case of - Patient withdrawal of consent - Lack of compliance with medication - Medical complications arising from IVF treatment that requires the cycle to be terminated - Serious adverse event (SAE) or serious adverse reaction (SAR) including severe allergy to study drug. - Specific adverse reactions to study drug: severe degree of hot flushed, severe degree of nausea/vomiting, severe diarrhea, severe degree of muscle and joint pain. In case of exclusion of a patient after earlier inclusion in the study, a new patient will be included.

Design outcomes

Primary

MeasureTime frame
Main Objective: The goal of the trial is to determine wheather co-treatment with aromatase inhibitor in ovarian stimulation in egg donors normalize the length of the unsupported luteal phase, reduce the endometrium thickness, positively modulate endocrine markers of luteal phase quality and endometrial markers of receptivity.;Secondary Objective: Not applicable;Primary end point(s): Difference in lengths (days until bleeding) of the luteal phase between interventions group and controls. ;Timepoint(s) of evaluation of this end point: Patients will start bleeding (menstruation) within two weeks after oocyte pickup. Patients will registry that date.

Secondary

MeasureTime frame
Secondary end point(s): Difference in established endometrial tissue and secretion markers of endometrial receptivity between intervention group and controls. Differences in the area under the curve for plasma E2, P, LH and FSH levels from day of OPU until day 14 post OPU between intervention group and controls. Difference in endometrium thickness 7 days post OPU between intervention group and controls. ;Timepoint(s) of evaluation of this end point: Difference in established endometrial tissue and secretion markers of endometrial receptivity between intervention group and controls: Endometrial secretion sample 7 days after oocyte pickup. Differences in the area under the curve for plasma E2, P, LH and FSH levels from day of OPU until day 14 post OPU between intervention group and controls: Blood Collection on day of oocyte pick up, 7 days after and 14 days after oocyte pick up. Difference in endometrium thickness 7 days post OPU between intervention group and controls: uterine ultrasound 7 days after oocyte pickup.

Countries

Denmark

Contacts

Public ContactUnit of Reproductive Medicine

Nichohlas Stephen Macklon, Professor, MD, PhD. Unit of Reproductive Medicine

nism@regionsjaelland.dk4547324007

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026