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CompletedNCT01815138Updated Oct 26, 2018Results posted

Co-administration of Low Dose hCG at the Time of GnRH Agonist Trigger or 35 Hours Later for the Prevention of OHSS

A Phase 4 interventional study of hCG and hCG in Ovarian Hyperstimulation Syndrome, sponsored by UConn Health. Completed at 1 site in United States. Open to female participants aged 18 Years to 39 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-10-26.

Sponsored by UConn Health · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
89
Allocation
Randomized
Ages
18 Years to 39 Years
Sex
Female
01

Study summary

This a prospective randomized double blind study involving patients at high risk of OHSS development with peak serum E2 levels \< 4,000 pg/ml comparing the ongoing pregnancy rates in patients who receive adjuvant hCG 1,000 IU at the time of GnRH agonist trigger or adjuvant hCG 1,500 IU 35 hours after GnRH agonist trigger.

Read the detailed description

Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic complication of controlled ovarian hyperstimulation which may result in significant morbidity and rarely mortality as well as significant financial and psychological distress. GnRH agonist trigger has been shown to be effective in OHSS prevention. However, the adoption of its use has not been widely accepted in view of concerns regarding potential impairment of implantation.

Intensive luteal phase supplementation with estrogen (E2) and progesterone (P) is important due to the strong evidence of abnormal luteal phase serum E2 and P profiles. However, it has been shown that optimal conception rates is not achieved for high risk patients with peak serum E2 \< 4,000 pg/ml despite aggressive steroidal supplementation. It has been proposed that the use of adjuvant low dose hCG at the time of GnRH agonist trigger or 35 hours later will rescue some of the corpora lutea and help improve corpora lutea function and improve pregnancy rates.

The study will evaluate patients at high risk of OHSS development with peak serum E2 \< 4,000 pg/mL to determine whether timing of low dose hCG administration affects ongoing pregnancy rates or risk of OHSS. Markers of corpus luteum function such as serum 17 hydroxy-progesterone and prorenin during the luteal phase and early pregnancy will help elucidate further the effect of adjuvant low dose hCG with GnRH agonist trigger on corpus luteum function.

02

Conditions studied

  • Ovarian Hyperstimulation Syndrome

Keywords

  • OHSS, GnRH agonist trigger, low dose hCG, PCOS, IVF
03

In context

Ovarian Hyperstimulation Syndrome

64 studies on the registry are indexed under Ovarian Hyperstimulation Syndrome; 3 are open to participants now.

This study's enrollment of 89 is below the median of 100 across 48 interventional studies indexed under Ovarian Hyperstimulation Syndrome.

Browse Ovarian Hyperstimulation Syndrome studies →

Lead sponsor

UConn Health is the lead sponsor of 182 studies on the registry; 18 are open to participants now.

Of its 9 completed or terminated interventional studies of FDA-regulated products, 6 (67%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 39 Years
Sexes eligible
Female
Accepts healthy volunteers
Yes

Inclusion criteria

  • Normal baseline serum follicle stimulating hormone, polycystic ovarian syndrome (PCOS), Polycystic ovarian morphology, Previous high responder or previous OHSS, must have > 14 follicles of over 11 mm in diameter and with peak serum E2 levels \< 4,000 pg/mL on the day of trigger of oocyte maturation.

Exclusion criteria

Exclusion Criteria:

  • Hypothalamic dysfunction, Patients with \< 14 follicles \< 11 mm in diameter, peak serum E2 levels >= 4,000 pg/mL.
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
89 participants (actual)

Study arms

  • Experimental
    hCG given at time of GnRHa trigger

    Adjuvant low dose hCG 1,000 IU administered at the time of GnRH agonist trigger. Placebo administered 35 hours after GnRH agonist trigger

    Drug: hCG

  • Active comparator
    hCG given 35 hours after GnRHa trigger

    Placebo administered at the time of GnRH agonist trigger Adjuvant low dose hCG 1,500 IU administered 35 hours after GnRH agonist trigger.

    Drug: hCG

Interventions

  • DrughCG

    Adjuvant low dose hCG 1,000 IU administered at the time of GnRH agonist trigger

    Also known as: Pregnyl, Profasi

  • DrughCG

    Adjuvant low dose hCG 1,500 IU administered 35 hours after GnRH agonist trigger

    Also known as: Pregnyl, Profasi

06

What researchers measure

Primary outcomes

  1. Ongoing Pregnancy

    Positive serum pregnancy test and ultrasound evidence of fetal pole and fetal heart rate .

    Time frame: Through time of study completion, on average 1-2years

Secondary outcomes

  1. Ovarian Hyperstimulation Syndrome

    Evaluation of symptoms and signs of OHSS at 9 days after trigger of oocyte maturation. Patients who also present with symptoms of OHSS wil also be evaluated for OHSS within 4 weeks after oocyte maturation.

    Time frame: Within 4 weeks of oocyte retrieval

Other outcomes

  1. Markers of Corpus Luteum Function

    A subset of patients (20 patients in each group) will have serum frozen for subsequent analysis of 17 hydroxy progesterone and prorenin.

    Time frame: Within 60 days after trigger of oocyte maturation

  2. Proportion of Patients With Abdominal Distension

    Patients will complete a questionnaire to determine if there is a difference in the effect of the intervention on the quality of life (abdominal distension) of the patients from the day of trigger of oocyte maturation until menses or positive pregnancy test.

    Time frame: Within 2 weeks after trigger of oocyte maturation

07

Results

Posted Sep 25, 2017

Participant flow

Participant flow — Overall Study
MilestonehCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa Trigger
Started3437
Completed2631
Not completed86
Withdrew: Withdrawal by subject01
Withdrew: Physician decision85

Outcome measures

PrimaryOngoing Pregnancy

Positive serum pregnancy test and ultrasound evidence of fetal pole and fetal heart rate .

Time frame:
Through time of study completion, on average 1-2years
Reported as:
Number · participants
Ongoing Pregnancy
participantshCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa Trigger
Ongoing Pregnancy1519
SecondaryOvarian Hyperstimulation Syndrome

Evaluation of symptoms and signs of OHSS at 9 days after trigger of oocyte maturation. Patients who also present with symptoms of OHSS wil also be evaluated for OHSS within 4 weeks after oocyte maturation.

Time frame:
Within 4 weeks of oocyte retrieval
Reported as:
Count of participants · Participants
Ovarian Hyperstimulation Syndrome
ParticipantshCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa Trigger
Ovarian Hyperstimulation Syndrome13
Statistical analysis
  • hCG Given at Time of GnRHa Trigger vs hCG Given 35 Hours After GnRHa Trigger · Fisher Exact · p = <0.05 · Odds ratio (or): 0.05
Other pre-specifiedMarkers of Corpus Luteum Function

A subset of patients (20 patients in each group) will have serum frozen for subsequent analysis of 17 hydroxy progesterone and prorenin.

Time frame:
Within 60 days after trigger of oocyte maturation
Reported as:
Mean · ng/mL
Markers of Corpus Luteum Function
ng/mLhCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa Trigger
Early luteal 17-OH-Progesterone13.68 ± 11.021.77 ± 8.5
Day 16 Prorenin1.13 ± 0.82.22 ± 1.6
Statistical analysis
  • hCG Given at Time of GnRHa Trigger vs hCG Given 35 Hours After GnRHa Trigger · t-test, 2 sided · p = 0.04
Other pre-specifiedProportion of Patients With Abdominal Distension

Patients will complete a questionnaire to determine if there is a difference in the effect of the intervention on the quality of life (abdominal distension) of the patients from the day of trigger of oocyte maturation until menses or positive pregnancy test.

Time frame:
Within 2 weeks after trigger of oocyte maturation
Reported as:
Count of participants · Participants
Proportion of Patients With Abdominal Distension
ParticipantshCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa Trigger
Abdominal distension211
abdominal pain19

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
hCG Given at Time of GnRHa Trigger0/26 (0%)1/26 (3.8%)0/26 (0%)
hCG Given 35 Hours After GnRHa Trigger0/31 (0%)1/31 (3.2%)0/31 (0%)
Most frequent serious events
Most frequent serious events
EventhCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa Trigger
Ectopic PregnancyPregnancy, puerperium and perinatal conditions1/261/31

Baseline characteristics

Age, Continuous
Age, Continuous(years)hCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa TriggerTotal
Mean31.3 ± 3.332.2 ± 3.431.8 ± 3.4
Sex: Female, Male
Sex: Female, Male(Participants)hCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa TriggerTotal
Female263157
Male000
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)hCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa TriggerTotal
Count of participants——0
Body Mass Index (BMI)
Body Mass Index (BMI)("kg/m^2")hCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa TriggerTotal
Mean26.3 ± 4.827.4 ± 5.526.9 ± 5.2
Anti Mullerian Hormone (AMH)
Anti Mullerian Hormone (AMH)(ng/ml)hCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa TriggerTotal
Mean8.3 ± 5.88.4 ± 4.98.35 ± 5.2
Follicle Stimulating Hormone (FSH)
Follicle Stimulating Hormone (FSH)(IU/L)hCG Given at Time of GnRHa TriggerhCG Given 35 Hours After GnRHa TriggerTotal
Mean5.6 ± 1.75.2 ± 1.65.5 ± 2.1
08

Study locations

1 site
  • University of Connecticut Health Center
    Farmington, Connecticut 06030, United States
09

References and documents

Publications

  • Griffin D, Benadiva C, Kummer N, Budinetz T, Nulsen J, Engmann L. Dual trigger of oocyte maturation with gonadotropin-releasing hormone agonist and low-dose human chorionic gonadotropin to optimize live birth rates in high responders. Fertil Steril. 2012 Jun;97(6):1316-20. doi: 10.1016/j.fertnstert.2012.03.015. Epub 2012 Apr 3. PubMed 22480822 ↗
  • Kummer N, Benadiva C, Feinn R, Mann J, Nulsen J, Engmann L. Factors that predict the probability of a successful clinical outcome after induction of oocyte maturation with a gonadotropin-releasing hormone agonist. Fertil Steril. 2011 Jul;96(1):63-8. doi: 10.1016/j.fertnstert.2011.04.050. Epub 2011 May 12. PubMed 21565337 ↗
  • Engmann L, DiLuigi A, Schmidt D, Nulsen J, Maier D, Benadiva C. The use of gonadotropin-releasing hormone (GnRH) agonist to induce oocyte maturation after cotreatment with GnRH antagonist in high-risk patients undergoing in vitro fertilization prevents the risk of ovarian hyperstimulation syndrome: a prospective randomized controlled study. Fertil Steril. 2008 Jan;89(1):84-91. doi: 10.1016/j.fertnstert.2007.02.002. Epub 2007 Apr 26. PubMed 17462639 ↗
  • Humaidan P. Luteal phase rescue in high-risk OHSS patients by GnRHa triggering in combination with low-dose HCG: a pilot study. Reprod Biomed Online. 2009 May;18(5):630-4. doi: 10.1016/s1472-6483(10)60006-5. PubMed 19549440 ↗
  • Humaidan P, Bungum L, Bungum M, Yding Andersen C. Rescue of corpus luteum function with peri-ovulatory HCG supplementation in IVF/ICSI GnRH antagonist cycles in which ovulation was triggered with a GnRH agonist: a pilot study. Reprod Biomed Online. 2006 Aug;13(2):173-8. doi: 10.1016/s1472-6483(10)60612-8. PubMed 16895629 ↗
  • Kaye L, Griffin D, Thorne J, Neuber E, Nulsen J, Benadiva C, Engmann L. Independent serum markers of corpora lutea function after gonadotropin-releasing hormone agonist trigger and adjuvant low dose human chorionic gonadotropin in in vitro fertilization. Fertil Steril. 2019 Sep;112(3):534-544. doi: 10.1016/j.fertnstert.2019.04.034. Epub 2019 Jun 18. PubMed 31227286 ↗

Individual participant data

Plan to share: Undecided

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 26, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01815138
Lead sponsor
UConn Health
Collaborators
Merck Sharp & Dohme LLC
Responsible party
Lawrence Engmann (MD, UConn Health) — Principal investigator
First posted
Mar 20, 2013
Start date
Mar 2013
Primary completion
Dec 2015
Completion
Oct 2016
Results posted
Sep 25, 2017
Last update
Oct 26, 2018

Study contacts

Lawrence Engmann, MD
principal investigator · UConn Health

Oversight

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

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This study is completed, as verified in Sep 2018. You cannot join it, but the record below documents what was studied.

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