Ovarian Hyperstimulation SyndromePhase 3NCT02686151
The Letrozole Administration During Luteal Phase
A Phase 3 study testing Letrozole, Polygeline and Sodium Chloride in people with Ovarian Hyperstimulation Syndrome, run by The Affiliated Hospital of Inner Mongolia Medical University at 1 site in China.
Trial summary
To investigate the effect of letrozole in patients who have high risk of ovarian hyperstimulation syndrome (OHSS) after oocyte retrieval, the incidence of OHSS were calculated between letrozole group and supporting treatment group. Read more about this study
- Who is it for?
- Ages 20 to 40 years, women only
- Conditions the study is for
- Ovarian Hyperstimulation Syndrome
- What is being tested?
- Letrozole, Polygeline and Sodium Chloride
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 50 participants
- Where
- 1 siteChina
- Study dates
- Dec 2023to Dec 2024
- Phase
- Phase 3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 40 years
- Women only
- No healthy volunteers
- Adult
Who may be able to join
- oocyte is more than or equal to 20;
- hCG injection on serum estradiol levels greater than or equal to 5000 pmol/L; 3. on the day of oocyte unilateral or bilateral ovarian diameter greater than or equal to 10 cm;
- 4. follicle puncture is larger than or equal to number 20.
Who cannot join
- Allergic to the letrozole or polygeline.
Trial locations and contacts
1 site in 1 country.
China1 site
The Affiliated Hospital of Inner Mongolia Medical University
Inner Mongolia
About this study
Official title: The Randomized Clinical Trials of Letrozole Administration During Luteal Phase in Patients Who Have the Risk of Ovarian Hyperstimulation Syndrome
To investigate the effect of letrozole in patients who have high risk of ovarian hyperstimulation syndrome (OHSS) after oocyte retrieval, the incidence of OHSS were calculated between letrozole group and supporting treatment group.
Read the detailed description
- Object: Infertility patients who frozen all embryos due to the risk of OHSS were randomized allocated to letrozole or polygeline injection group. Inclusion criteria meet one of the following conditions: (1) oocyte is more than or equal to 20; (2) human chorionic gonadotropin (hCG) injection on serum estradiol levels greater than or equal to 5000 pmol/L; (3) on the day of oocyte unilateral or bilateral ovarian diameter greater than or equal to 10 cm (4) follicle puncture is larger than or equal to number 20. After the informed consent was signed, letrozole or polygeline injection was randomized allocated after oocyte retrieval. OHSS was determined according to Golan diagnosis standards.
- Clinical data: Including age, infertility duration, body mass index (BMI), basic follicle-stimulating hormone (FSH) and luteinizing hormone (LH), antral follicle number (AFC), Gn dosage, estradiol level on hCG injection day, the number of oocytes, the number of embryos, early onset OHSS incidence, and the existence of ascites.
- Reproductive hormone levels:
1, 4, 7, days after taken letrozole, and the supernatant was collected for serum reproductive hormone test.
- Conditions
- Ovarian Hyperstimulation Syndrome
- Being tested
- Letrozole, Polygeline, Sodium Chloride, dexamethasone
- Keywords
- Letrozole, OHSS
- Medical subject headings
- Ovarian Hyperstimulation Syndrome
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
LetrozoleDrug
Also called Femara
used after oocyte retrieval
PolygelineDrug
Also called polyegline
used after oocyte retrieval
Sodium ChlorideDrug
Also called Natrum muriaticum
used after oocyte retrieval
dexamethasoneDrug
Also called dexametona
used after oocyte retrieval
| Study group | Role | What they receive |
|---|---|---|
| letrozole | Active comparator | 2.5mg/tablet(Jiangsu Hengrui Medicine Co., Ltd. products), orally taken 5mg once a day for 5 days Receives: Drug: Letrozole |
| Polygeline Injection | Other | 500ml and 0.9% Sodium Chloride Injection (250ml) with dexamethasone 1mg intravenous injection，once a day for 2 days Receives: Drug: Polygeline; Drug: Sodium Chloride; Drug: dexamethasone |
What is being measured
The primary outcome is the main question the study is designed to answer.
The incidence of early OHSS
Measured: one year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Feb 2016 (estimated)
- Study startDec 2023 (estimated)
- Primary completionMar 2024 (estimated)
- Study completionDec 2024 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (11)Papers the sponsor has linked to this study.
- Other trials for Ovarian Hyperstimulation SyndromeStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 50 participants (estimated)
Sponsor and investigators
- Lead sponsor
- The Affiliated Hospital of Inner Mongolia Medical University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Yu Wang, PhD, Principal investigator, Inner Mongolia Medical University affiliated HospitalXiujuan Chen, MD, Principal investigator, Inner Mongolia Medical University affiliated Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02686151
- Sponsor's protocol ID
- Bhsu
- Status last verified
- Jul 2023
- First submitted
- 20 Aug 2015
- Last updated
- 20 Jul 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
He Q, Xu J, Cui S, Li H, Zhang C. [Relationship between letrozole administration during the luteal phase after oocyte retrieval and the early-stage ovarian hyperstimulation syndrome oocurrence]. Zhonghua Fu Chan Ke Za Zhi. 2014 Dec;49(12):909-13. Chinese.
PubMed 25608991Wang YQ, Yang J, Xu WM, Xie QZ, Yan WJ, Yin TL, Cheng D, Xiao ZN, Li J. [Luteal letrozole administration decreases serum estrogen level but not the risk of ovarian hyperstimulation syndrome]. Beijing Da Xue Xue Bao Yi Xue Ban. 2013 Dec 18;45(6):869-72. Chinese.
PubMed 24343064Wiwanitkit V. Letrozole and gonadotropins versus luteal estradiol and GnRH-antagonist protocol: additional concerns. Fertil Steril. 2011 Jun 30;95(8):e78; author reply e80. doi: 10.1016/j.fertnstert.2011.05.009. Epub 2011 May 24. No abstract available.
PubMed 21605857Elassar A, Engmann L, Nulsen J, Benadiva C. Letrozole and gonadotropins versus luteal estradiol and gonadotropin-releasing hormone antagonist protocol in women with a prior low response to ovarian stimulation. Fertil Steril. 2011 Jun;95(7):2330-4. doi: 10.1016/j.fertnstert.2011.03.103. Epub 2011 Apr 22.
PubMed 21514582Montville CP, Khabbaz M, Aubuchon M, Williams DB, Thomas MA. Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction. Fertil Steril. 2010 Jul;94(2):678-83. doi: 10.1016/j.fertnstert.2009.03.088. Epub 2009 Jun 9.
PubMed 19515366Fatemi HM, Popovic-Todorovic B, Donoso P, Papanikolaou E, Smitz J, Devroey P. Luteal phase oestradiol suppression by letrozole: a pilot study in oocyte donors. Reprod Biomed Online. 2008 Sep;17(3):307-11. doi: 10.1016/s1472-6483(10)60212-x.
PubMed 18764999Garcia-Velasco JA, Quea G, Piro M, Mayoral M, Ruiz M, Toribio M, Requena A. Letrozole administration during the luteal phase after ovarian stimulation impacts corpus luteum function: a randomized, placebo-controlled trial. Fertil Steril. 2009 Jul;92(1):222-5. doi: 10.1016/j.fertnstert.2008.04.042. Epub 2008 Aug 16.
PubMed 18710719Sh Tehrani Nejad E, Abediasl Z, Rashidi BH, Azimi Nekoo E, Shariat M, Amirchaghmaghi E. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial. J Assist Reprod Genet. 2008 May;25(5):187-90. doi: 10.1007/s10815-008-9209-2. Epub 2008 Apr 19.
PubMed 18427974Ortiz ME, Ortiz RE, Garfield R, Zepeda AJ, Croxatto HB. Progesterone, but not luteal estrogen, is required for the establishment of pregnancy in the new world monkey Cebus apella. Am J Primatol. 2007 Oct;69(10):1131-40. doi: 10.1002/ajp.20408.
PubMed 17387700Barroso G, Menocal G, Felix H, Rojas-Ruiz JC, Arslan M, Oehninger S. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphene citrate as adjuvants to recombinant follicle-stimulating hormone in controlled ovarian hyperstimulation: a prospective, randomized, blinded clinical trial. Fertil Steril. 2006 Nov;86(5):1428-31. doi: 10.1016/j.fertnstert.2006.03.044. Epub 2006 Sep 14.
PubMed 16978619Fatemi HM, Kolibianakis E, Tournaye H, Camus M, Van Steirteghem AC, Devroey P. Clomiphene citrate versus letrozole for ovarian stimulation: a pilot study. Reprod Biomed Online. 2003 Nov;7(5):543-6. doi: 10.1016/s1472-6483(10)62070-6.
PubMed 14680546
Study at a glance
From the registry record, last updated by the sponsor on 20 Jul 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Randomized Clinical Trials of Letrozole Administration During Luteal Phase in Patients Who Have the Risk of Ovarian Hyperstimulation Syndrome
- ClinicalTrials.gov ID
- NCT02686151
- Acronym / sponsor ID
- Bhsu
- Conditions
- Ovarian Hyperstimulation Syndrome
- Keywords
- Letrozole, OHSS
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 50 participants (estimated)
- Lead sponsor
- The Affiliated Hospital of Inner Mongolia Medical UniversityUniversity, hospital or other
- Study start
- Dec 2023 (estimated)
- Primary completion
- Mar 2024 (estimated)
- Study completion
- Dec 2024 (estimated)
- First posted
- 19 Feb 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To investigate the effect of letrozole in patients who have high risk of ovarian hyperstimulation syndrome (OHSS) after oocyte retrieval, the incidence of OHSS were calculated between letrozole group and supporting treatment group.
Detailed description
- Object: Infertility patients who frozen all embryos due to the risk of OHSS were randomized allocated to letrozole or polygeline injection group. Inclusion criteria meet one of the following conditions: (1) oocyte is more than or equal to 20; (2) human chorionic gonadotropin (hCG) injection on serum estradiol levels greater than or equal to 5000 pmol/L; (3) on the day of oocyte unilateral or bilateral ovarian diameter greater than or equal to 10 cm (4) follicle puncture is larger than or equal to number 20. After the informed consent was signed, letrozole or polygeline injection was randomized allocated after oocyte retrieval. OHSS was determined according to Golan diagnosis standards.
- Clinical data: Including age, infertility duration, body mass index (BMI), basic follicle-stimulating hormone (FSH) and luteinizing hormone (LH), antral follicle number (AFC), Gn dosage, estradiol level on hCG injection day, the number of oocytes, the number of embryos, early onset OHSS incidence, and the existence of ascites.
- Reproductive hormone levels:
1, 4, 7, days after taken letrozole, and the supernatant was collected for serum reproductive hormone test.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| letrozole | Active comparator | Drug: Letrozole2.5mg/tablet(Jiangsu Hengrui Medicine Co., Ltd. products), orally taken 5mg once a day for 5 days |
| Polygeline Injection | Other | Drug: Polygeline, Drug: Sodium Chloride, Drug: dexamethasone500ml and 0.9% Sodium Chloride Injection (250ml) with dexamethasone 1mg intravenous injection，once a day for 2 days |
Who may qualify
- Ages
- 20 to 40 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- oocyte is more than or equal to 20;
- hCG injection on serum estradiol levels greater than or equal to 5000 pmol/L; 3. on the day of oocyte unilateral or bilateral ovarian diameter greater than or equal to 10 cm;
- 4. follicle puncture is larger than or equal to number 20.
Key exclusion criteria (1 listed)
- Allergic to the letrozole or polygeline.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| LetrozoleAlso: Femaraused after oocyte retrieval | Drug | letrozole |
| PolygelineAlso: polyeglineused after oocyte retrieval | Drug | Polygeline Injection |
| Sodium ChlorideAlso: Natrum muriaticumused after oocyte retrieval | Drug | Polygeline Injection |
| dexamethasoneAlso: dexametonaused after oocyte retrieval | Drug | Polygeline Injection |
Primary outcome
The incidence of early OHSS
Time frame: one year
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Jul 2023.
- Background: PubMed 25608991He Q, Xu J, Cui S, Li H, Zhang C. [Relationship between letrozole administration during the luteal phase after oocyte retrieval and the early-stage ovarian hyperstimulation syndrome oocurrence]. Zhonghua Fu Chan Ke Za Zhi. 2014 Dec;49(12):909-13. Chinese.
- Background: PubMed 24343064Wang YQ, Yang J, Xu WM, Xie QZ, Yan WJ, Yin TL, Cheng D, Xiao ZN, Li J. [Luteal letrozole administration decreases serum estrogen level but not the risk of ovarian hyperstimulation syndrome]. Beijing Da Xue Xue Bao Yi Xue Ban. 2013 Dec 18;45(6):869-72. Chinese.
- Background: PubMed 21605857Wiwanitkit V. Letrozole and gonadotropins versus luteal estradiol and GnRH-antagonist protocol: additional concerns. Fertil Steril. 2011 Jun 30;95(8):e78; author reply e80. doi: 10.1016/j.fertnstert.2011.05.009. Epub 2011 May 24. No abstract available.
- Background: PubMed 21514582Elassar A, Engmann L, Nulsen J, Benadiva C. Letrozole and gonadotropins versus luteal estradiol and gonadotropin-releasing hormone antagonist protocol in women with a prior low response to ovarian stimulation. Fertil Steril. 2011 Jun;95(7):2330-4. doi: 10.1016/j.fertnstert.2011.03.103. Epub 2011 Apr 22.
- Background: PubMed 19515366Montville CP, Khabbaz M, Aubuchon M, Williams DB, Thomas MA. Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction. Fertil Steril. 2010 Jul;94(2):678-83. doi: 10.1016/j.fertnstert.2009.03.088. Epub 2009 Jun 9.
- Background: PubMed 18764999Fatemi HM, Popovic-Todorovic B, Donoso P, Papanikolaou E, Smitz J, Devroey P. Luteal phase oestradiol suppression by letrozole: a pilot study in oocyte donors. Reprod Biomed Online. 2008 Sep;17(3):307-11. doi: 10.1016/s1472-6483(10)60212-x.
- Background: PubMed 18710719Garcia-Velasco JA, Quea G, Piro M, Mayoral M, Ruiz M, Toribio M, Requena A. Letrozole administration during the luteal phase after ovarian stimulation impacts corpus luteum function: a randomized, placebo-controlled trial. Fertil Steril. 2009 Jul;92(1):222-5. doi: 10.1016/j.fertnstert.2008.04.042. Epub 2008 Aug 16.
- Background: PubMed 18427974Sh Tehrani Nejad E, Abediasl Z, Rashidi BH, Azimi Nekoo E, Shariat M, Amirchaghmaghi E. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial. J Assist Reprod Genet. 2008 May;25(5):187-90. doi: 10.1007/s10815-008-9209-2. Epub 2008 Apr 19.
- Background: PubMed 17387700Ortiz ME, Ortiz RE, Garfield R, Zepeda AJ, Croxatto HB. Progesterone, but not luteal estrogen, is required for the establishment of pregnancy in the new world monkey Cebus apella. Am J Primatol. 2007 Oct;69(10):1131-40. doi: 10.1002/ajp.20408.
- Background: PubMed 16978619Barroso G, Menocal G, Felix H, Rojas-Ruiz JC, Arslan M, Oehninger S. Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphene citrate as adjuvants to recombinant follicle-stimulating hormone in controlled ovarian hyperstimulation: a prospective, randomized, blinded clinical trial. Fertil Steril. 2006 Nov;86(5):1428-31. doi: 10.1016/j.fertnstert.2006.03.044. Epub 2006 Sep 14.
- Background: PubMed 14680546Fatemi HM, Kolibianakis E, Tournaye H, Camus M, Van Steirteghem AC, Devroey P. Clomiphene citrate versus letrozole for ovarian stimulation: a pilot study. Reprod Biomed Online. 2003 Nov;7(5):543-6. doi: 10.1016/s1472-6483(10)62070-6.
- Individual participant dataSharing planned: Undecided
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Yu Wang, PhD principal investigator
Inner Mongolia Medical University affiliated Hospital
Xiujuan Chen, MD principal investigator
Inner Mongolia Medical University affiliated Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Letrozole, Polygeline and Sodium Chloride in people with Ovarian Hyperstimulation Syndrome, run by The Affiliated Hospital of Inner Mongolia Medical University at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 20 Jul 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Yu Wang, PhD (+86-18604718958, wuai1544@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The incidence of early OHSS (time frame: one year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02686151, which also lists 11 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Jul 2023.