CClinicalTrials.gg
TerminatedNCT01202643Updated Jul 26, 2019Results posted

Effect of Colony Stimulating Factor on Poor Endometrial Development During IVF

A Phase 1/2 interventional study of G-CSF and Saline in Infertility, Female, sponsored by Center for Human Reproduction. Terminated at 1 site in United States. Open to female participants aged 21 Years to 45 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-07-26.

Sponsored by Center for Human Reproduction · Phase 1/2, Interventional, and Treatment

Why this study was terminated
Insufficient recruitment
Phase
Phase 1/2
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
21 Years to 45 Years
Sex
Female
01

Study summary

The purpose of this study is to investigate the effect of G-CSF on endometrial thickness in women who have failed reaching minimal endometrial thickness by standard treatments, to assess how many reach embryo transfer and what implantation and pregnancy rates are in comparison to control patients. The study will be conducted in women undergoing transfer of previously cryopreserved embryos or undergoing transfer of embryos from donor eggs.

Read the detailed description

Objective: To investigate the effect of treatment with CSF : A placebo controlled double blinded crossover study.

Design: Crossover Randomized Control Trial

Setting: Academically affiliated private infertility centers

Subjects: Female IVF patients of all ages who are willing to be randomized to treatment and, in either IVF treatment, frozen embryo cycles (FET) or donor IVF cycles (D-IVF), 5 days before ET, have inadequate endometrial thickness.

Interventions: Subjects receive transvaginally, utilizing an insemination catheter, 2 slow intrauterine lavages with CSF-1 (Neupogen or generic, 300ug in 1 ml) 5 and 3 days, respectively, before embryo transfer and controls receive 1 ml of saline instead. Patients who do not become pregnant will after one month washout times continue treatment in the opposite study arm if they so choose and if they have remaining embryos.

Main Outcome Measures: Number of patients reaching embryo transfer with adequate endometrial thickness of at least 7mm.

Second Outcome Measures: Implantation and pregnancy rates..

Statistical and Power considerations: This is a Randomized Controlled Trial (RCT) with two study arms and panned crossover. Patients will be randomly assigned to Study group A or B according to a computer generated randomization table with 50:50 distributions. The study will test the null hypothesis that there is no difference in the transfer rates between the two groups. Transfer is only possible if the endometrial thickness reaches 7 mm or more. Order of treatment ab v ba will be added to the models as a separate factor and each phase will be analyzed as separate treatment strata.

The investigators are planning a study of independent cases and controls with 1 control per case. Prior data indicate that the transfer rate among controls is \< 1%. If the true transfer rate for experimental subjects is 25%, the investigators will need to study 38 experimental subjects and 38 control subjects to be able to reject the null hypothesis that the transfer rates for experimental and control subjects are equal with probability (power) 0.8. The Type I error probability associated with this test of this null hypothesis is 0.05. We will use a continuity-corrected chi-squared statistic or Fisher's exact test to evaluate this null hypothesis.

There will be a planned interim analysis after 20 participants have completed the trial and if significant effects are observed the trial may be terminated at that time. The power to detect a difference in this interim analysis is only 42.6%.

02

Conditions studied

  • Infertility, Female

Keywords

  • Thin Endometrium
  • Asherman's Syndrome
  • Endometrial Scarring
03

In context

Infertility

2,506 studies on the registry are indexed under Infertility; 407 are open to participants now.

This study's enrollment of 12 is below the median of 120 across 1,698 interventional studies indexed under Infertility.

Browse Infertility studies →

Lead sponsor

Center for Human Reproduction is the lead sponsor of 13 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
21 Years to 45 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Patient's preparing for invitro fertilization and embryo transfer with endometrial growth of less than 7 mm, unresponsive to standard treatment

Exclusion criteria

Exclusion Criteria:

  • Sickle Cell disease
  • Renal insufficiency
  • Upper respiratory infection or Pneumonia
  • Chronic Neutropenia
  • Known Past or present malignancy
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
12 participants (actual)

Study arms

  • Experimental
    G-CSF

    G-CSF 300 units administered by trans-cervical infusion one time on day of hCG trigger for Ovulation

    Drug: G-CSF

  • Placebo comparator
    Saline

    Saline administered by trans-cervical infusion one time on day of hCG trigger for ovulation

    Drug: Saline

Interventions

  • DrugG-CSF

    One infusion of G-CSF 300 units administered by intrauterine infusion

    Also known as: NEUPOGEN (Filgrastim)

  • DrugSaline

    One intrauterine saline infusions of 1 cc

    Also known as: Normal Saline (Salt water), 0.91% w/v of NaCl, about 300 mOsm/L

06

What researchers measure

Primary outcomes

  1. Endometrial Thickness

    Thickness of the endometrium on the day of embryo transfer

    Time frame: Day of embryo transfer

Secondary outcomes

  1. Implantation Rate

    Number of gestational sacs per number of embryos transferred in each treatment group

    Time frame: 28 days after embryo transfer

07

Results

Posted Dec 4, 2014

Participant flow

All patients presenting for embryos transfer between October 3, 2010, and January 1, 2013, were offered participation in the trial. A total of 419 eligible patients were offered participation: Only 12 patients consented to participate in this study,(129 addtional patient participated in the NCT01202656 study) and 278 declined.

Period 1
Participant flow — Period 1
MilestoneG-CSF Then SalineSaline Then G-CSF
Started66
Completed66
Not completed00
Crossover Cycle
Participant flow — Crossover Cycle
MilestoneG-CSF Then SalineSaline Then G-CSF
Started12
Completed12
Not completed00

Outcome measures

PrimaryEndometrial Thickness

Thickness of the endometrium on the day of embryo transfer

Time frame:
Day of embryo transfer
Reported as:
Mean · mm
Endometrial Thickness
mmG-CSFSaline
Endometrial Thickness11.3 ± 3.17.8 ± 0.8
Statistical analysis
  • G-CSF vs Saline · ANCOVA · p = 0.67
SecondaryImplantation Rate

Number of gestational sacs per number of embryos transferred in each treatment group

Time frame:
28 days after embryo transfer
Reported as:
Number · Gestational sacs
Implantation Rate
Gestational sacsG-CSFSaline
Implantation Rate12
Statistical analysis
  • G-CSF vs Saline · Chi-squared, Corrected · p = 0.74

Adverse events

Collected over 1 year. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
G-CSF—0/8 (0%)0/8 (0%)
Saline—0/7 (0%)0/7 (0%)

Baseline characteristics

The transfer rate among controls should be \< 1%. If the true transfer rate for experimental subjects is 25%, we will need to study 38 experimental subjects and 38 control subjects to be able to reject the null hypothesis that the transfer rates for experimental and control subjects are equal with probability (power) 0.8.

Age, Categorical
Age, Categorical(Participants)G-CSF Then SalineSaline Then G-CSFTotal
<=18 years000
Between 18 and 65 years6612
>=65 years000
Age, Continuous
Age, Continuous(Years)G-CSF Then SalineSaline Then G-CSFTotal
Mean39.79 ± 5.1339.38 ± 6.0339.59 ± 5.56
Sex: Female, Male
Sex: Female, Male(Participants)G-CSF Then SalineSaline Then G-CSFTotal
Female6612
Male000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)G-CSF Then SalineSaline Then G-CSFTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American101
White5611
More than one race000
Unknown or Not Reported000
FSH
FSH(mIU/mL)G-CSF Then SalineSaline Then G-CSFTotal
Mean8.64 ± 3.928.27 ± 4.018.46 ± 3.95
Endometrial Thickness
Endometrial Thickness(mm)G-CSF Then SalineSaline Then G-CSFTotal
Mean5.6 ± 0.226.2 ± 0.695.8 ± 0.46
08

Study locations

1 site
  • Center for Human Reproduction
    New York, New York 10021, United States
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 26, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01202643
Lead sponsor
Center for Human Reproduction
Collaborators
Foundation for Reproductive Medicine
Responsible party
David H. Barad (Director of Clinical Research, Center for Human Reproduction) — Principal investigator
First posted
Sep 16, 2010
Start date
Sep 2010
Primary completion
Feb 2013
Completion
Feb 2013
Results posted
Dec 4, 2014
Last update
Jul 26, 2019

Study contacts

David H Barad, MD, MS
principal investigator · Center for Human Reproduction
Norbert Gleicher, MD
study chair · Center for Human Reproduction

Oversight

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

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