AzTrials
AzTrials

Pregnancy RelatedPhase 1NCT05969795

Comparison of Live Birth Rate in Natural Cycle Single Euploid FET Versus Without Luteal Phase Support

A Phase 1 study testing Transvaginal ultrasound, Serial serum LH, E2, P4 and Progesterone 100 Mg Vaginal Insert in people with Pregnancy Related and Infertility, Female, run by ART Fertility Clinics LLC at 3 sites in United Arab Emirates.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

To evaluate whether single euploid embryo transfer in NC without routinely administered LPS is non-inferior to NC with routinely administered LPS. Read more about this study

Who is it for?
Ages 18 to 40 years, women onlyHealthy volunteers can take part
Conditions the study is for
Pregnancy Related, Infertility, Female
What is being tested?
Transvaginal ultrasound, Serial serum LH, E2, P4 and Progesterone 100 Mg Vaginal Insert
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
342 participants
Where
3 sitesUnited Arab Emirates
Study dates
5 Sep 2023to 30 Sep 2026
Phase
Phase 1
Are there results?
Not yet: the study is under way

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 18 to 40 years
  • Women only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Age: 18 to 40 years
  • Regular ovulatory cycles
  • Availability of at least one euploid embryo after Trophectoderm biopsy for PGT-A on day 5 or day 6
  • Detection of ovulation by P4 rise > 1.0 ng/ml after LH surge
  • P4 value of at least 5 ng/ml on day 4 after ovulation

Who cannot join

  • History of repeated pre-menstrual spotting
  • Factors affecting the implantation through anatomical changes of the uterus / ovaries or the tubes (adenomyosis, Asherman syndrome, endometriosis, uterine fibroids / polyps, isthmocele with intracavitary fluid presence, hydrosalpinx….)

Trial locations and contacts

3 sites in 1 country. Contact the study team or a site near you to ask about taking part.

United Arab Emirates3 sites, 3 recruiting
  • ART Fertility Clinics LLC

    Abu Dhabi, 60202

    Barbara Lawrenz, PhD, +971 800 337845489, barbara.lawrenz@artfertilityclinics.com

    Recruiting
  • ART Fertility Clinics Al Ain

    Al Ain City

    Anastasia Salame, +971 800 337845489, jonalyn.edades@artfertilityclinics.com

    Recruiting
  • ART Fertility Clinics Dubai

    Dubai

    Carol Coughlan, PhD, +971 800 337845489, jonalyn.edades@artfertilityclinics.com

    Not yet recruiting

Other trials in United Arab Emirates

About this study

Official title: Comparison of Live Birth Rate (> 24 Weeks) in Natural Cycle (NC) Single Euploid Frozen Embryo Transfers (FET) With Versus Without Luteal Phase Support (LPS)

To evaluate whether single euploid embryo transfer in NC without routinely administered LPS is non-inferior to NC with routinely administered LPS.

Read the detailed description

In case the study will show that the live birth rate in single euploid NC frozen embryo transfer cycles without LPS is not inferior to NC cycles with LPS, treatment can be simplified, and participants comfort can be increased.

Being tested
Transvaginal ultrasound, Serial serum LH, E2, P4, Progesterone 100 Mg Vaginal Insert, Serum P4 day of ET - Control Group, Serum P4 day of ET - Study Group
Keywords
implantation rate, infertility, pregnancy rate, natural cycle, luteal phase support, live birth, progesterone
Medical subject headings
Infertility, Female, Infertility

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Transvaginal ultrasoundDiagnostic test

    Intermittent transvaginal ultrasound throughout the cycle to monitor follicular growth

  • Serial serum LH, E2, P4Diagnostic test

    Serial measurements of serum Luteinizing Hormone (LH), Estradiol (E2) and Progesterone (P4 )levels throughout the cycle to determine ovulation. LH-surge is identified when a rise of 180% above the previous level occurred and ovulation is confirmed with a decrease in E2 concentration, and a rise of progesterone level to ≥ 1.0 ng/ml (Irani et al., 2017).

  • Progesterone 100 Mg Vaginal InsertDrug

    Also called Progesterone 100Mg Vag Tab

    On day of ET procedure, to administer 200 mg of vaginal progesterone and increase to 300 mg/day from the day after the ET onwards until the pregnancy test. In case of an implantation, vaginal P4 will be continued until 7 weeks of pregnancy

  • Serum P4 day of ET - Control GroupDiagnostic test

    Serum P4 will be drawn before starting LPS in form of vaginal progesterone on the day of ET procedure

  • Serum P4 day of ET - Study GroupDiagnostic test

    Serum P4 will be drawn when study group participants are admitted to the clinic for the ET procedure.

  • Embryo transferProcedure or surgery

    Also called ET

    The procedure in which embryo is placed in the uterus.

  • Serum hCG 10 days after ETDiagnostic test

    Pregnancy will be confirmed / excluded by measurement of serum hCG 10 days after ET procedure and a level of > 15 IU will be regarded as positive result. The definitions of biochemical, ectopic, clinical and ongoing pregnancy follow the ICMART criteria (Zegers-Hochschild, 2006)

  • Serum P4 10 days after ETDiagnostic test

    Serum P4 will be drawn on day 5 or day 6 after the ET procedure and together with the hCG 10 days after ET procedure

Study groups in NCT05969795
Study groupRoleWhat they receive
Study GroupOtherIntermittent ultrasound scans to monitor follicular growth and serial measurements of serum LH, E2 and P4 levels throughout the cycle to determine ovulation. Embryo transfer (ET) will be scheduled on the fifth day after ovulation. Blood for P4 measurement will be drawn upon admission to the clinic for the ET procedure. P4 will be measured on day 5 or day 6 after the ET procedure and together with the hCG 10 days after ET procedure.
Receives: Diagnostic Test: Transvaginal ultrasound; Diagnostic Test: Serial serum LH, E2, P4; Diagnostic Test: Serum P4 day of ET - Study Group; Procedure: Embryo transfer; Diagnostic Test: Serum hCG 10 days after ET; Diagnostic Test: Serum P4 10 days after ET
Control GroupOtherIntermittent ultrasound scans to monitor follicular growth and serial measurements of serum LH, E2 and P4 levels throughout the cycle to determine ovulation. Embryo transfer (ET) will be scheduled on the fifth day after ovulation. Administer on FET day 200 mg of P4 and increase to 300 mg/day from the day after the ET onwards until the pregnancy test. Blood for P4 measurement will be drawn before starting LPS in form of vaginal progesterone. P4 will be measured on day 5 or day 6 after the ET procedure and together with the hCG 10 days after ET procedure. In case of an implantation, vaginal P4 will be continued until 7 weeks of pregnancy.
Receives: Diagnostic Test: Transvaginal ultrasound; Diagnostic Test: Serial serum LH, E2, P4; Drug: Progesterone 100 Mg Vaginal Insert; Diagnostic Test: Serum P4 day of ET - Control Group; Procedure: Embryo transfer; Diagnostic Test: Serum hCG 10 days after ET; Diagnostic Test: Serum P4 10 days after ET

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Implantation rate

    Number of embryos which have produced ultrasonographic evidence of an intrauterine gestational sac per the total number of embryos transferred into the uterine cavity (Zegers-Hochschild et al., 2009).

    Measured: 2 months

  2. Clinical pregnancy rate

    hCG > 15 Iu/ml and ultrasound confirmation of a gestational sac

    Measured: 2 months

  3. Live birth rate

    Number of deliveries that resulted in a live born neonate, expressed per 100 embryo transfers (Zegers-Hochschild et al., 2009)

    Measured: 41 weeks

  4. Serum P4 levels on ET day

    Progesterone level on the day of embryo transfer

    Measured: 1 day

  5. Serum E2 and P4 levels on day 5 or 6 after ET procedure

    Estradiol and Progesterone levels on day 5 or 6 after embryo transfer

    Measured: 6 days

  6. Serum E2 and P4 levels on day 10 after ET procedure

    Estradiol and Progesterone levels on day 10 after embryo transfer

    Measured: 10 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Aug 2023
  2. Study start5 Sep 2023
  3. Primary completion30 Apr 2026 (estimated)
  4. Study completion30 Sep 2026 (estimated)

Resources

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 1
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
342 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05969795
Sponsor's protocol ID
2306-ABU-009-BL
Status last verified
Jan 2025
First submitted
24 Jul 2023
Last updated
9 Jan 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Bortoletto P, Prabhu M, Baker VL. Association between programmed frozen embryo transfer and hypertensive disorders of pregnancy. Fertil Steril. 2022 Nov;118(5):839-848. doi: 10.1016/j.fertnstert.2022.07.025. Epub 2022 Sep 25.

    PubMed 36171152
  • Csapo AI, Pulkkinen M. Indispensability of the human corpus luteum in the maintenance of early pregnancy. Luteectomy evidence. Obstet Gynecol Surv. 1978 Feb;33(2):69-81. doi: 10.1097/00006254-197802000-00001. No abstract available.

    PubMed 341008
  • Filicori M, Butler JP, Crowley WF Jr. Neuroendocrine regulation of the corpus luteum in the human. Evidence for pulsatile progesterone secretion. J Clin Invest. 1984 Jun;73(6):1638-47. doi: 10.1172/JCI111370.

    PubMed 6427277
  • Ginstrom Ernstad E, Wennerholm UB, Khatibi A, Petzold M, Bergh C. Neonatal and maternal outcome after frozen embryo transfer: Increased risks in programmed cycles. Am J Obstet Gynecol. 2019 Aug;221(2):126.e1-126.e18. doi: 10.1016/j.ajog.2019.03.010. Epub 2019 Mar 22.

    PubMed 30910545
  • Pape J, Levy J, von Wolff M. Early pregnancy complications after frozen-thawed embryo transfer in different cycle regimens: A retrospective cohort study. Eur J Obstet Gynecol Reprod Biol. 2022 Dec;279:102-106. doi: 10.1016/j.ejogrb.2022.10.015. Epub 2022 Oct 21.

    PubMed 36308939
  • Roelens C, Blockeel C. Impact of different endometrial preparation protocols before frozen embryo transfer on pregnancy outcomes: a review. Fertil Steril. 2022 Nov;118(5):820-827. doi: 10.1016/j.fertnstert.2022.09.003.

    PubMed 36273850
  • Soules MR, Clifton DK, Steiner RA, Cohen NL, Bremner WJ. The corpus luteum: determinants of progesterone secretion in the normal menstrual cycle. Obstet Gynecol. 1988 May;71(5):659-66.

    PubMed 3357651
  • Su S, Zeng M, Duan J. Luteal phase support for natural cycle frozen embryo transfer: a meta-analysis. Gynecol Endocrinol. 2022 Feb;38(2):116-123. doi: 10.1080/09513590.2021.1998438. Epub 2021 Nov 3.

    PubMed 34730071
  • Practice Committee of the American Society for Reproductive Medicine. The clinical relevance of luteal phase deficiency: a committee opinion. Fertil Steril. 2012 Nov;98(5):1112-7. doi: 10.1016/j.fertnstert.2012.06.050. Epub 2012 Jul 20.

    PubMed 22819186
  • von Versen-Hoynck F, Schaub AM, Chi YY, Chiu KH, Liu J, Lingis M, Stan Williams R, Rhoton-Vlasak A, Nichols WW, Fleischmann RR, Zhang W, Winn VD, Segal MS, Conrad KP, Baker VL. Increased Preeclampsia Risk and Reduced Aortic Compliance With In Vitro Fertilization Cycles in the Absence of a Corpus Luteum. Hypertension. 2019 Mar;73(3):640-649. doi: 10.1161/HYPERTENSIONAHA.118.12043.

    PubMed 30636552

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Transvaginal ultrasound, Serial serum LH, E2, P4 and Progesterone 100 Mg Vaginal Insert in people with Pregnancy Related and Infertility, Female, run by ART Fertility Clinics LLC at 3 sites in United Arab Emirates.

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 5 inclusion and 2 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: looking for participants now, as of the sponsor's last update on 9 Jan 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United Arab Emirates. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Barbara Lawrenz, PhD (+971 800 337845489, barbara.lawrenz@artfertilityclinics.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Implantation rate (time frame: 2 months). The study lists 6 primary outcomes in all. 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 NCT05969795, which also lists 10 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 9 Jan 2025.

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