A Trial to Compare the Ovarian Response of REKOVELLE and GONAL-F in Conventional Dosing in Women Undergoing Controlled Ovarian Stimulation
ADAPT-1
A Randomised, Controlled, Assessor-blind, Parallel Groups, Multicentre, Multinational Trial Comparing the Ovarian Response of a Starting Dose of 15 μg Follitropin Delta (REKOVELLE) to a Starting Dose of 225 IU Follitropin Alfa (GONAL-F) in Conventional Regimens in Controlled Ovarian Stimulation in Women Undergoing an Assisted Reproductive Technology Programme
2 other identifiers
interventional
302
5 countries
16
Brief Summary
Hormone preparations like REKOVELLE and GONAL-F are used to make the body produce multiple egg sacs, allowing more eggs to be collected from women undergoing infertility treatment. The main purpose of this trial is to see how many eggs are produced with a starting dose of 15 µg REKOVELLE compared to a starting dose of 225 IU GONAL-F. This research is intended to provide more knowledge about REKOVELLE, including the doses given in the trial.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Jul 2022
16 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 16, 2021
CompletedFirst Posted
Study publicly available on registry
March 2, 2022
CompletedStudy Start
First participant enrolled
July 15, 2022
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 16, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
April 16, 2024
CompletedResults Posted
Study results publicly available
April 2, 2025
CompletedApril 2, 2025
March 1, 2025
1.8 years
November 16, 2021
March 13, 2025
March 13, 2025
Conditions
Outcome Measures
Primary Outcomes (1)
Number of Oocytes Retrieved
The number of oocytes retrieved was recorded at the oocyte retrieval visit.
On day of oocyte retrieval (Up to 22 days after start of stimulation)
Secondary Outcomes (10)
Number of Follicles (Total) at End-of-stimulation
At end-of-stimulation (up to 20 stimulation days)
Size of the Follicles at End-of-stimulation
At end-of-stimulation (up to 20 stimulation days)
Serum Concentrations of Estradiol at End-of-stimulation
At end-of-stimulation (up to 20 stimulation days)
Serum Concentrations of Progesterone at End-of-stimulation
At end-of-stimulation (up to 20 stimulation days)
Number of Fertilized Oocytes
On day 1 after oocyte retrieval (up to 23 days after start of stimulation)
- +5 more secondary outcomes
Study Arms (2)
REKOVELLE (Follitropin Delta)
EXPERIMENTALGONAL-F (Follitropin Alfa)
ACTIVE COMPARATORInterventions
REKOVELLE administered as single daily subcutaneous injections in the abdomen. The starting dose of REKOVELLE was 15 μg fixed for the first four stimulation days. Dose adjustments could be implemented on the day of starting the gonadotropin-releasing hormone (GnRH) antagonist (stimulation day 5 or day 6) or later, could occur no more frequently than every second day. At each dose adjustment, the daily REKOVELLE dose could be increased or decreased by 5 μg based on the participant's response. The minimum REKOVELLE dose was 5 μg and the maximum REKOVELLE was 20 μg. Participants could be treated for a maximum of 20 days.
GONAL-F administered as single daily subcutaneous injections in the abdomen. The starting dose of GONAL-F was 225 IU fixed for the first four stimulation days. Dose adjustments could be implemented on the day of starting the GnRH antagonist (stimulation day 5 or day 6) or later, could occur no more frequently than every second day. At each dose adjustment, the daily GONAL-F dose could be adjusted by 75 IU based on the participant's response. The minimum GONAL-F dose was 75 IU and the maximum GONAL-F dose was 300 IU. Participants could be treated for a maximum of 20 days.
Eligibility Criteria
You may qualify if:
- Infertile women aged 18-40 years
- Diagnosed with tubal infertility, unexplained infertility, mild endometriosis (stage I/II) or partners with decreased sperm quality
- Medically eligible for in vitro fertilization (IVF) and/or intracytoplasmic sperm injection (ICSI)
- Infertility for at least one year for participants ≤ 37 years or for at least 6 months for participants ≥ 38 years
- Regular menstrual cycles of 21-35 days.
You may not qualify if:
- Known condition of not functioning ovaries
- Known advanced endometriosis (stage III/IV)
- Considered unsuitable for controlled ovarian stimulation with a dosing regimen corresponding to approximately 225 IU/day gonadotropin, as judged by the investigator
- History of previous episode of OHSS or exuberant ovarian response to gonadotropins, and polycystic ovarian syndrome
- Any known hormonal or metabolic abnormalities which can compromise participation in the trial
- Known tumors of the ovary, breast, uterus, adrenal gland, pituitary or hypothalamus
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (16)
Ferring Investigational Site
Wals-Seizenheim, Salzburg, Austria
Ferring Investigational Site
Vienna, Austria
Ferring Investigational Site
Montpellier, France
Ferring Investigational Site
Paris, France
Ferring Investigational Site
Florence, Italy
Ferring Investigational Site
Milan, Italy
Ferring Investigational Site
Napoli, Italy
Ferring Investigational Site
Roma, Italy
Ferring Investigational Site
Alicante, Spain
Ferring Investigational Site
Barcelona, Spain
Ferring Investigational Site
Bilbao, Spain
Ferring Investigational Site
Madrid, Spain
Ferring Investigational Site
Málaga, Spain
Ferring Investigational Site
Valladolid, Spain
Ferring Investigational Site
Coventry, United Kingdom
Ferring Investigational Site
Liverpool, United Kingdom
Related Publications (1)
Bernabeu A, Zajc P, Garcia Sanchez M, Agrawal R, Papaleo E, Jirecek S, Mogelmose S, Jepsen IE, Lobo R. Ovarian stimulation with follitropin delta for in vitro fertilization: a multicentre, randomized, assessor-blind comparison with follitropin alfa using conventional dosing regimens (ADAPT-1 trial). Hum Reprod. 2025 Sep 1;40(9):1660-1670. doi: 10.1093/humrep/deaf119.
PMID: 40633120DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Global Clinical Compliance
- Organization
- Ferring Pharmaceuticals
Study Officials
- STUDY DIRECTOR
Global Clinical Compliance
Ferring Pharmaceuticals
Publication Agreements
- PI is Sponsor Employee
- No
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 16, 2021
First Posted
March 2, 2022
Study Start
July 15, 2022
Primary Completion
April 16, 2024
Study Completion
April 16, 2024
Last Updated
April 2, 2025
Results First Posted
April 2, 2025
Record last verified: 2025-03
Data Sharing
- IPD Sharing
- Will not share