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Continuous Double Ovarian Stimulation.

Continuous Ovarian Stimulation in DUOSTIM Cycles.

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05815719
Enrollment
30
Registered
2023-04-18
Start date
2022-11-17
Completion date
2023-05-30
Last updated
2025-05-18

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

Conditions

Fertility Issues

Keywords

OVARIAN STIMULATION

Brief summary

To evaluate the efficacy of the weekly use of corifollitropin alfa in double ovarian stimulation process and to compare it to the conventional protocol with daily medication administration.

Detailed description

The purpose of this pilot study is to evaluate the efficacy of the weekly use of corifollitropin alfa in terms of ovarian stimulation results and its biological outcomes (total number of oocytes retrieved) in case of ovarian stimulation cycles in double stimulation modality (DUOSTIM) and in comparison with the conventional DUOSTIM protocol: daily administration of gonadotropins.

Interventions

DRUGCorifollitropin Alfa

150 micrograms per dose

Variable dose.

DRUGFollitropin Alfa Biosimilar

Variable dose.

DRUGUrinary Human follicle stimulating hormone

Variable dose.

Sponsors

Instituto Bernabeu
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 43 Years
Healthy volunteers
Yes

Inclusion criteria

* Patients with indication for DUOSTIM protocol * Maximum age of 43 years (up to one day before their 44th birthday) at the beginning of the stimulation process. * Ability to participate and comply with the study protocol. * To have given written consent

Exclusion criteria

* Finding of ovarian pathology at the time of initiation of stimulation: e.g. ovarian cysts. * Concurrent participation in another study.

Design outcomes

Primary

MeasureTime frameDescription
Total Number of Retrieved OocytesThrough study completion, an average of four weeksTo investigate the total number of oocytes retrieved through ovarian stimulation in double ovarian stimulation cycles (DUOSTIM) utilizing weekly subcutaneous injections of Corifollitropin alfa (study group) vs. daily injections of gonadotropins (control group).
Number of MII OocytesThrough study completion, an average of four monthsTo compare the total number of MII oocytes obtained in double stimulation cycles in study vs control groups

Secondary

MeasureTime frameDescription
Duration of Ovarian StimulationThrough study completion, an average of four monthsTotal days of follicular and luteal phases
Number of InjectionsThrough study completion, an average of four monthsNumber of injections during the DUOSTIM cycle

Countries

Spain

Participant flow

Pre-assignment details

Enrolled patients all had to comply with the entry criteria and were all assiged to the study group. The control group subjects were selected restrospectively by also complying with the criteria and with similar characteristics (such as AMH level, BMI, age) to the study group ones.

Participants by arm

ArmCount
Study Group
Patients to carry out an experimental double ovarian stimulation and to receive 4 weekly injections of Corifollitropin alfa. Prospective group. Corifollitropin Alfa: 150 micrograms per dose
15
Control Group
Patients to carry out a conventional double ovarian stimulation and to receive daily injections of gonadotropins. Retrospective group (data retrieved from strictly selected treatments carried out in our institution within the 24 months prior to the inclusion of the first patient in the study group and according to the standard guideline of the clinic). Follitropin Alfa: Variable dose. Follitropin Alfa Biosimilar: Variable dose. Urinary Human follicle stimulating hormone: Variable dose.
15
Total30

Baseline characteristics

CharacteristicStudy GroupControl GroupTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
15 Participants15 Participants30 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
15 Participants15 Participants30 Participants
Region of Enrollment
Spain
15 participants15 participants30 participants
Sex: Female, Male
Female
15 Participants15 Participants30 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 150 / 15
other
Total, other adverse events
0 / 150 / 15
serious
Total, serious adverse events
0 / 150 / 15

Outcome results

Primary

Number of MII Oocytes

To compare the total number of MII oocytes obtained in double stimulation cycles in study vs control groups

Time frame: Through study completion, an average of four months

ArmMeasureValue (MEAN)Dispersion
Study GroupNumber of MII Oocytes10.4 oocytesStandard Deviation 6.3
Control GroupNumber of MII Oocytes9.2 oocytesStandard Deviation 4.6
Primary

Total Number of Retrieved Oocytes

To investigate the total number of oocytes retrieved through ovarian stimulation in double ovarian stimulation cycles (DUOSTIM) utilizing weekly subcutaneous injections of Corifollitropin alfa (study group) vs. daily injections of gonadotropins (control group).

Time frame: Through study completion, an average of four weeks

ArmMeasureValue (MEAN)Dispersion
Study GroupTotal Number of Retrieved Oocytes13.33 oocytesStandard Deviation 6.904
Control GroupTotal Number of Retrieved Oocytes11.87 oocytesStandard Deviation 6.105
Secondary

Duration of Ovarian Stimulation

Total days of follicular and luteal phases

Time frame: Through study completion, an average of four months

ArmMeasureValue (MEAN)Dispersion
Study GroupDuration of Ovarian Stimulation24.4 daysStandard Deviation 3.5
Control GroupDuration of Ovarian Stimulation25.2 daysStandard Deviation 4.9
Secondary

Number of Injections

Number of injections during the DUOSTIM cycle

Time frame: Through study completion, an average of four months

ArmMeasureValue (MEAN)Dispersion
Study GroupNumber of Injections4.5 injectionsStandard Deviation 1.4
Control GroupNumber of Injections35.2 injectionsStandard Deviation 12.2

Source: ClinicalTrials.gov · Data processed: Feb 8, 2026