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CompletedNCT07801781Updated Sep 3, 2026

Follitropin Delta Versus Follitropin Alfa in Indonesian Women Undergoing IUI

An observational study in Infertility, Ovulation Induction and Insemination, Artificial, sponsored by Stella Maris Women and Children Hospital. Completed at 1 site in Indonesia. Open to female participants aged 18 Years to 40 Years. Per ClinicalTrials.gov, last updated 2026-09-03.

Sponsored by Stella Maris Women and Children Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
228
Ages
18 Years to 40 Years
Sex
Female
01

Study summary

The goal of this retrospective observational study is to compare two types of follicle-stimulating hormone, follitropin delta and follitropin alfa, used for ovarian stimulation in Indonesian women undergoing intrauterine insemination (IUI) for infertility treatment. The study includes women younger than 40 years who underwent IUI at Halim Fertility Center, Indonesia, between January 2020 and December 2022.

The main questions this study aims to answer are:

  • Is ovarian stimulation with a simplified follitropin delta dosing regimen associated with a different clinical pregnancy rate compared with conventional follitropin alfa treatment?
  • Are the rates of multiple pregnancy and ovarian hyperstimulation syndrome (OHSS) different between the two treatment groups?

Researchers will compare women who received follitropin delta with women who received follitropin alfa as part of their fertility treatment. The study hypothesis is that a simplified follitropin delta regimen may provide comparable fertility outcomes while maintaining an acceptable safety profile compared with conventional follitropin alfa treatment.

Participants had already received one of the two ovarian stimulation treatments as part of their routine clinical care. Researchers will review their medical records and compare treatment characteristics and IUI outcomes between the two groups. The study does not assign participants to treatment because the treatments were given before the study data were analyzed.

02

Conditions studied

  • Infertility
  • Ovulation Induction
  • Insemination, Artificial

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03

In context

Infertility

2,085 studies on the registry are indexed under Infertility; 357 are open to participants now.

This study's enrollment of 228 is above the median of 200 across 592 observational studies indexed under Infertility.

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Lead sponsor

Stella Maris Women and Children Hospital is the lead sponsor of 3 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 40 Years
Sexes eligible
Female
Sampling method
Non-probability sample

Study population

The study population consisted of women younger than 40 years who underwent controlled ovarian stimulation followed by intrauterine insemination (IUI) at Halim Fertility Center, Indonesia, between January 2020 and December 2022. Participants had infertility associated with unexplained infertility, anovulation, mild male-factor infertility, or combined infertility factors and met the predefined eligibility criteria. Women were classified according to the ovarian stimulation received: follitropin alfa or follitropin delta.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Female age \<40 years
  • Undergoing intrauterine insemination (IUI) for infertility treatment
  • Bilateral tubal patency
  • Unexplained infertility, anovulation, and/or mild male-factor infertility
  • For mild male-factor infertility: total motile sperm count (TMSC) 10-20×10\^6/mL
  • Baseline serum FSH \<10 mIU/mL

Exclusion criteria

Exclusion Criteria:

  • Pre-existing medical conditions considered unsuitable for IUI treatment
  • Endometriotic cyst
  • Adenomyosis
  • Congenital uterine anomalies
  • Spontaneous ovulation
  • Poor ovarian response
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
228 participants (actual)
Patient registry
No

Groups and cohorts

  • Follitropin Delta

    Women undergoing IUI who received controlled ovarian stimulation with follitropin delta, starting at 5 μg/day, with dose adjustment according to ovarian response. This cohort serves as the study group.

    Drug: Follitropin Delta, Recombinant

  • Follitropin Alfa

    Women undergoing IUI who received controlled ovarian stimulation with follitropin alfa, starting at 75 IU/day, with dose adjustment according to ovarian response. This cohort serves as the control group.

    Drug: Follitropin Alfa (GONAL-F)

Interventions

  • DrugFollitropin Delta, Recombinant

    Follitropin delta was administered once daily beginning on cycle day 2 or 3 at an initial dose of 5 μg/day using a simplified dose-equivalent regimen. The dose could be adjusted according to ovarian response assessed by ultrasound monitoring. Stimulation was continued until the leading follicle reached ≥17 mm in diameter, followed by final oocyte maturation triggering and intrauterine insemination approximately 36 hours later.

  • Follitropin alfa was administered once daily beginning on cycle day 2 or 3 at an initial dose of 75 IU/day. The dose could be adjusted according to ovarian response assessed by ultrasound monitoring. Stimulation was continued until the leading follicle reached ≥17 mm in diameter, followed by final oocyte maturation triggering and intrauterine insemination approximately 36 hours later.

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What researchers measure

Primary outcomes

  1. Clinical Pregnancy Rate

    The proportion of IUI cycles resulting in a clinical pregnancy. Clinical pregnancy was defined as ultrasonographic visualization of one or more gestational sacs or other definitive clinical evidence of pregnancy.

    Time frame: During early pregnancy follow-up 4-6 weeks after IUI

Secondary outcomes

  1. Multiple Pregnancy Rate

    The proportion of IUI cycles resulting in a multiple clinical pregnancy, defined as the presence of more than one gestational sac identified by ultrasonography.

    Time frame: During early pregnancy follow-up 4-6 weeks after IUI

  2. Ovarian Hyperstimulation Syndrome Rate

    The proportion of IUI cycles in which ovarian hyperstimulation syndrome (OHSS) occurred following controlled ovarian stimulation.

    Time frame: 2-4 weeks after IUI

07

Study locations

1 site
  • RSIA Stella Maris
    Medan, North Sumatera 20152, Indonesia
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jan 2020 to primary completion in Dec 2022, 35 months.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 31, 2026
First posted
Sep 3, 2026
StartActual
Jan 1, 2020
Primary completionActual
Dec 31, 2022
CompletionActual
Dec 31, 2022
Last update
Sep 3, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 3, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07801781
Lead sponsor
Stella Maris Women and Children Hospital
Collaborators
Halim Fertility Center
Responsible party
Sponsor
First posted
Sep 3, 2026
Start date
Jan 1, 2020
Primary completion
Dec 31, 2022
Completion
Dec 31, 2022
Last update
Sep 3, 2026

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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