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CompletedNCT01509833Updated Jan 13, 2012

Efficacy of Low Dose hCG on Oocyte Maturity in Poor Responder Women Undergoing Intracytoplasmic Sperm Injection

A Phase 3 interventional study of rFSH and hCG in Infertility, sponsored by Royan Institute. Completed at 1 site in Iran. Open to female participants aged 37 Years to 43 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2012-01-13.

Sponsored by Royan Institute · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
73
Allocation
Randomized
Ages
37 Years to 43 Years
Sex
Female
01

Study summary

This study is a prospective, randomized, parallel, controlled trial to assess the efficacy of the late follicular phase administration of low dose hCG on oocyte maturity for ovarian stimulation in 73 poor respond patients undergoing intracytoplasmic sperm injection (ICSI) treatment.

Read the detailed description

In this study all eligible patients were randomly allocated into three study groups by a permuted block randomization method: group A (control group) received only recombinant FSH, group B received rFSH supplemented by 100IU hCG in the late follicular phase. Group C received rFSH supplemented by 200IU hCG in the late follicular phase.

All of the patients underwent a standard long protocol and received GnRH-a (Suprefact), 0.5cc subcutaneous, started from the day 17 of the preceding cycle and ovulation induction was started 14 days thereafter.

Patients were categorized according to the following stimulation protocols:

Group A (control group): which 300 IU r-FSH was administered for the first 5 days of the stimulation cycle. Then the first ultrasound scan was performed to monitor response. At this stage the dose of rFSH adjusted according to the ovarian response and continued until the day of ovulatory hCG administration.

Group B: rFSH supplemented with daily administration of 100 IU hCG in the late follicular phase based on the follicle size (14mm).

Group C: rFSH supplemented with daily administration of 200 IU hCG in the late follicular phase based on the follicle size (14mm).

To assess the pregnancy outcomes, serum hCG was measured 2 weeks after embryo transfer. Clinical pregnancy was defined by the observation of sac with fetal heart rate on ultrasonography 4 weeks after embryo transfer.

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Conditions studied

  • Infertility

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Keywords

  • ICSI Ovarian stimulation
  • hCG low dose
  • Oocyte maturity
  • poor respond
03

In context

Infertility

2,540 studies on the registry are indexed under Infertility; 405 are open to participants now.

This study's enrollment of 73 is below the median of 120 across 1,722 interventional studies indexed under Infertility.

Browse Infertility studies →

Lead sponsor

Royan Institute is the lead sponsor of 94 studies on the registry; 3 are open to participants now.

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

04

Who can participate

Ages eligible
37 Years to 43 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria:

  1. Poor ovarian response to ovulation induction according to the ESHRE definition[20] and presence of at least 2 of the criteria needed to define poor responders including advanced maternal age, history of low ovarian response in previous IVF/ICSI treatments and abnormal ovarian reserve test(Antral Follicle number \< 5)
  2. indication for ICSI treatment, second or third cycle
  3. Age 37 to 43 years
  4. Body mass index (BMI) ≤ 30 kg/m2
  5. The presence of two functional ovaries and no previous ovarian surgery
  6. The presence of normal uterine cavity and 2 normal tubes base on recent hysterosalpingographic or hysteroscopic evaluation
  7. Basal (day 2 or 3) serum FSH levels ≤13 IU/L
  8. Normal semen analysis
  9. No history or signs of endometriosis
  10. No untreated endocrinologic disease
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
73 participants (actual)

Study arms

  • Experimental
    rFSH

    Administration of recombinant FSH for ovarian stimulation.

    Drug: rFSH

  • Experimental
    hCG(100IU)

    Administration of late follicular low dose hCG(100U) for ovarian stimulation.

    Drug: hCG

  • Experimental
    hCG(200IU)

    Administration of late follicular low dose hCG(200IU) for ovarian stimulation.

    Drug: hCG

Interventions

  • DrugrFSH

    Administration of rFSH for ovarian stimulation.

  • DrughCG

    Administration of late follicular low dose hCG(100IU) for ovarian stimulation.

  • DrughCG

    Administration of late follicular low dose hCG(200IU) for ovarian stimulation.

06

What researchers measure

Primary outcomes

  1. Number of mature oocytes

    Evaluation the number of mature oocytes Up to 2 hours after oocyte retrieval

    Time frame: Up to 2 hours after oocyte retrieval

Secondary outcomes

  1. Number of retrieved oocytes

    Evaluation the number of retrieved oocytes Up to 1 hour after oocyte retrieval

    Time frame: Up to 1 hour after oocyte retrieval

  2. Number of generated embryos

    Evaluation the number of generated embryos up to 48-72 hours after oocyte retrieval.

    Time frame: Up to 48-72 hours after oocyte retrieval

  3. Quality of generated embryos

    Evaluation the Quality of generated embryos up to 48-72 hours after oocyte retrieval.

    Time frame: Up to 48-72 hours after oocyte retrieval

  4. Number of transferred embryos

    Evaluation the number of transferred embryos on the time of embryo transfer.

    Time frame: on the time of embryo transfer

  5. Quality of transferred embryos

    Evaluation the quality of transferred embryos on the time of embryo transfer.

    Time frame: on the time of embryo transfer

  6. implantation rate

    Evaluation the implantation rate 4 weeks after embryo transfer.

    Time frame: 4 weeks after embryo transfer

  7. chemical pregnancy rates

    Evaluation the chemical pregnancy rates 2 weeks after embryo transfer.

    Time frame: 2 weeks after embryo transfer

  8. clinical pregnancy rates

    Evaluation the clinical pregnancy rates 4 weeks after embryo transfer.

    Time frame: 4 weeks after embryo transfer

07

Study locations

1 site
  • Royan Institute
    Tehran, Iran
08

References and documents

Publications

  • Madani T, Mohammadi Yeganeh L, Khodabakhshi S, Akhoond MR, Hasani F. Efficacy of low dose hCG on oocyte maturity for ovarian stimulation in poor responder women undergoing intracytoplasmic sperm injection cycle: a randomized controlled trial. J Assist Reprod Genet. 2012 Nov;29(11):1213-20. doi: 10.1007/s10815-012-9854-3. Epub 2012 Sep 7. PubMed 22956348 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 13, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01509833
Lead sponsor
Royan Institute
Responsible party
Sponsor
First posted
Jan 13, 2012
Start date
Oct 2009
Primary completion
Mar 2011
Completion
Dec 2011
Last update
Jan 13, 2012

Study contacts

Hamid Gourabi, PhD
study chair · Head of Royan Institute
Tahereh Madani, MD
study director · scientist
Ladan Mohmmadi yeganeh, MSc
principal investigator · scientist

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2009. You cannot join it, but the record below documents what was studied.

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