An Exploratory Study to Investigate the Effect of FE 999302 When Given Together With Follitropin Delta at Different Time Intervals During Controlled Ovarian Stimulation.

NCT ID: NCT06511791

Last Updated: 2025-10-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE1

Total Enrollment

106 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-07-15

Study Completion Date

2025-09-05

Brief Summary

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This is a phase 1b clinical trial with Choriogonadotropin beta (FE999302) and Follitropin delta (Rekovelle). The trial is a randomised, double blind, placebo controlled, parallel group, exploratory trial, investigating the effect of FE 999302 when administered during different time intervals in women undergoing controlled ovarian stimulation with a fixed dose of follitropin delta in a antagonist protocol.

Detailed Description

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The trial is multicentre, randomized, partially double-blind, placebo-controlled, parallel-group investigating the effect of FE999302 on parameters influencing pregnancy rates in women undergoing controlled ovarian stimulation with a fixed dose of follitropin.

The primary endpoint is the number of good-quality blastocysts on day 5 after oocyte retrieval. Secondary endpoints are number of follicles by size category and serum concentration of different hormones on stimulation day 6 and end-of stimulation, the number of stimulation days and oocytes retrieved, the number of metaphase II oocytes and fertilised oocytes, number of blastocysts on day 5, number of cryopreserved blastocysts, endometrial thickness at eos, positive bhcg rate, clinical pregnancy, vital pregnancy and ongoing pregnancy.

Conditions

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Infertility

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Caregivers
Double-blind

Study Groups

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Placebo Group

Placebo from day 1 to end of stimulation

Group Type PLACEBO_COMPARATOR

Follitropin delta

Intervention Type DRUG

The effect on parameters influencing pregnancy rates in women undergoing controlled ovarian stimulation with a fixed dose of follitropin.

Placebo FE 999302

Intervention Type DRUG

No active ingredient, subcutaneous injection.

FE 999302 Group

FE 999302 from stimulation day 1 to end-of-stimulation

Group Type ACTIVE_COMPARATOR

FE 999302

Intervention Type DRUG

Effect on parameters influencing pregnancy rates when administered during different time intervals in women undergoing controlled ovarian stimulation with a fixed dose of follitropin delta in a gonadotropin-releasing hormone (GnRH) antagonist protocol

Follitropin delta

Intervention Type DRUG

The effect on parameters influencing pregnancy rates in women undergoing controlled ovarian stimulation with a fixed dose of follitropin.

FE 999302 and Placebo Group

FE 999302 from stimulation day 1 to stimulation day 5, and placebo stimulation day 6 to end-of-stimulation

Group Type ACTIVE_COMPARATOR

FE 999302

Intervention Type DRUG

Effect on parameters influencing pregnancy rates when administered during different time intervals in women undergoing controlled ovarian stimulation with a fixed dose of follitropin delta in a gonadotropin-releasing hormone (GnRH) antagonist protocol

Follitropin delta

Intervention Type DRUG

The effect on parameters influencing pregnancy rates in women undergoing controlled ovarian stimulation with a fixed dose of follitropin.

Placebo FE 999302

Intervention Type DRUG

No active ingredient, subcutaneous injection.

Placebo and FE 999302

Placebo from stimulation day 1 to stimulation 5, FE 999302 from stimulation day 6 to end-of-stimulation.

Group Type ACTIVE_COMPARATOR

FE 999302

Intervention Type DRUG

Effect on parameters influencing pregnancy rates when administered during different time intervals in women undergoing controlled ovarian stimulation with a fixed dose of follitropin delta in a gonadotropin-releasing hormone (GnRH) antagonist protocol

Follitropin delta

Intervention Type DRUG

The effect on parameters influencing pregnancy rates in women undergoing controlled ovarian stimulation with a fixed dose of follitropin.

Placebo FE 999302

Intervention Type DRUG

No active ingredient, subcutaneous injection.

Interventions

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FE 999302

Effect on parameters influencing pregnancy rates when administered during different time intervals in women undergoing controlled ovarian stimulation with a fixed dose of follitropin delta in a gonadotropin-releasing hormone (GnRH) antagonist protocol

Intervention Type DRUG

Follitropin delta

The effect on parameters influencing pregnancy rates in women undergoing controlled ovarian stimulation with a fixed dose of follitropin.

Intervention Type DRUG

Placebo FE 999302

No active ingredient, subcutaneous injection.

Intervention Type DRUG

Other Intervention Names

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REKOVELLE

Eligibility Criteria

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Inclusion Criteria

1. Subject informed consent form signed before any trial-related activities.
2. In good physical and mental health as judged by the investigator.
3. Serum anti-Müllerian hormone (AMH) levels of \>35.0 pmol/L at screening (measured at central laboratory).
4. Pre-menopausal women between the ages of 18 and 40 years. The subjects must be at least 18 years (including the 18th birthday) and no more than 40 years (up to the day before the 41st birthday) when they sign the informed consent(s).
5. Infertile women diagnosed with tubal infertility, unexplained infertility, endometriosis stage I/II or with partners diagnosed with male factor infertility, eligible for in vitro fertilisation (IVF) and/or intracytoplasmic sperm injection (ICSI) using fresh or frozen ejaculated sperm from male partner or sperm donor.
6. Infertility for at least 1 year before screening for subjects \<35 years or for at least 6 months for subjects ≥35 years (not applicable in case of tubal or severe male factor infertility).

Exclusion Criteria

8. Regular menstrual cycles of 24-35 days (both inclusive), presumed to be ovulatory.
9. Early follicular phase (cycle day 2-5) serum levels of follicle-stimulating hormone (FSH) between 1 and 15 IU/L (measured at central laboratory).
10. Body mass index (BMI) between 18.0 and 32.0 kg/m2 (both inclusive) at screening.


1. Known polycystic ovary syndrome (PCOS) or known endometriosis stage III-IV (American Society for Reproductive Medicine, 2012).
2. Poor response in a previous controlled ovarian stimulation cycle using a gonadotropin starting dose of 150 IU/day (corresponding to 10 µg follitropin delta) or higher. Poor response is defined as \<4 oocytes retrieved, or cycle cancellation before oocyte retrieval due to inadequate follicular development.
3. Severe ovarian hyperstimulation syndrome (OHSS; grade 4 or 5) in a previous controlled ovarian stimulation cycle, as judged by the investigator.
4. One or more follicles ≥10 mm (including cysts) observed on the transvaginal ultrasound before randomisation on stimulation day 1 (puncture of cysts is allowed before randomisation).
5. Any known clinically significant systemic disease (e.g. insulin-dependent diabetes).
6. Any known endocrine or metabolic abnormalities (pituitary, adrenal, pancreas, liver, or kidney) with the exception of controlled thyroid function disease.
7. Known tumours of the ovary, breast, uterus, adrenal gland, pituitary, or hypothalamus which would contraindicate the use of gonadotropins.
8. Any abnormal finding of clinical chemistry and haematology at screening or vital signs at randomisation, which is judged clinically relevant by the investigator and/or requires intervention.
9. Currently breast-feeding.
10. Undiagnosed vaginal bleeding.
11. Findings at the gynaecological examination at screening which preclude gonadotropin stimulation or are associated with a reduced chance of pregnancy, e.g. congenital uterine abnormalities or retained intrauterine device.
12. Pregnancy (negative urinary pregnancy tests must be documented at screening and before randomisation) or contraindication to pregnancy.
13. Use of fertility modifiers during the last menstrual cycle before screening, including dehydroepiandrosterone (DHEA) and metformin or cycle programming with oral contraceptives, progestogen, or estrogen preparations.
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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Ferring Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Ferring Pharmaceuticals

Role: STUDY_DIRECTOR

Ferring Pharmaceuticals

Locations

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Ferring Investigational Site

Brussels, , Belgium

Site Status

Ferring Investigational Site

Edegem, , Belgium

Site Status

Ferring Investigational Site

Prague, , Czechia

Site Status

Ferring Investigational Site

Prague, , Czechia

Site Status

Ferring Investigational Site

Prague, , Czechia

Site Status

Ferring Investigational Site

Copenhagen, , Denmark

Site Status

Ferring Investigational Site

Hvidovre, , Denmark

Site Status

Ferring Investigational Site

Bergen, , Norway

Site Status

Ferring Investigational Site

Porsgrunn, , Norway

Site Status

Ferring Investigational Site

Trondheim, , Norway

Site Status

Ferring Investigational Site

Barcelona, , Spain

Site Status

Ferring Investigational Site

Madrid, , Spain

Site Status

Ferring Investigational Site

Madrid, , Spain

Site Status

Ferring Investigational Site

Seville, , Spain

Site Status

Ferring Investigational Site

Valencia, , Spain

Site Status

Countries

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Belgium Czechia Denmark Norway Spain

Other Identifiers

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2023-508149-42-00

Identifier Type: CTIS

Identifier Source: secondary_id

000427

Identifier Type: -

Identifier Source: org_study_id

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