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Infertility, FemaleNCT05969574

Is Decreased Ovarian Reserve Related to an Increased Number of Previous Early Miscarriages?

An observational study of Infertility, Female and Miscarriage, 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
Search all trials

Trial summary

This study aims to explore the potential correlation between decreased ovarian reserve and previous history of early miscarriage. Read more about this study

Who is it for?
Any age, women only
What is being tested?
Transvaginal ultrasound and Blood test AMH
How many people
2,059 participants
Where
3 sitesUnited Arab Emirates
Study dates
9 Sep 2023to 31 Dec 2026
Phase
Observational
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 Any age
  • Women only
  • Child, Adult, Older adult

Study population: All participants who visit ART Fertility clinics in Abu Dhabi, Al Ain and Dubai for first consultation

Who may be able to join

  • 1. All participants with at least 1 previous pregnancy, who are assessed in one of our clinics (ART Fertility Clinics Abu Dhabi, Al Ain, Dubai)

Who cannot join

  • Severe male factor (azoospermia, cryptozoospermia, severe oligoasthenoteratozoospermia (OAT))
  • Severe Endometriosis and adenomyosis based on positive anamnesis or ultrasound performed in our center during the first consultation
  • Uterine abnormalities (e.g. fibroids, different degrees of uterine septum), diagnosed by ultrasound
  • History of ovarian surgery, chemotherapy, or radiation therapy
  • Known genetic disorder or chromosomal abnormality
  • BMI >40Kg/m2
  • Currently using hormonal contraception or hormone replacement therapy

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, Abu Dhabi Emirate, 60202

    Laura Melado, PhD, +971 800 337845489, laura.melado@artfertilityclinics.com

    Jonalyn Edades, RN, +971 800 337845489, jonalyn.edades@artfertilityclinics.com

    Recruiting
  • ART Fertility Clinics Al Ain

    Al Ain City

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

    Recruiting
  • ART Fertility Clinics Dubai

    Dubai

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

    Recruiting

Other trials in United Arab Emirates

About this study

Official title: Is Decreased Ovarian Reserve Related to an Increased Number of Previous Early Miscarriages? A Prospective Observational Study

This study aims to explore the potential correlation between decreased ovarian reserve and previous history of early miscarriage.

Read the detailed description

By investigating the prevalence of low ovarian reserve (LOR) in populations with specific reproductive histories (such as recurrent pregnancy loss, G0, and ectopic pregnancy), as well as the aneuploidy rates of embryos produced with Preimplantation Genetic Testing for Aneuploidies (PGT-A), Investigators can better understand how LOR impacts fertility outcomes in these populations. This information can be used to inform clinical decision-making, such as whether participants with LOR should consider alternative or whether they would benefit from additional interventions to improve ovarian function.

Ultimately, by improving our understanding of how LOR impacts fertility outcomes in specific populations, Investigators can help to improve the overall success rates of infertility treatment, reduce anxiety, and distress, and help participants achieve goals of becoming parents.

Being tested
Transvaginal ultrasound, Blood test AMH
Keywords
miscarriage, infertility, IVF
Medical subject headings
Infertility, Female, Abortion, Spontaneous, Abortion, Habitual, Infertility

What participants receive

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

  • Transvaginal ultrasoundDiagnostic test

    Transvaginal ultrasound for antral follicle count (AFC) performed on the day of first consultation

  • Blood test AMHDiagnostic test

    Measurement of AMH performed on the day of first consultation

Study groups in NCT05969574
Study groupRoleWhat they receive
AMH <1.3, at least 1 pregnancy or at least 1 miscarriageParticipants will not undergo any additional intervention compared to normal clinical assessment and routine testing of the ovarian reserve, which includes AMH and AFC. Investigators will follow standard stimulation protocols and medications.
Receives: Diagnostic Test: Transvaginal ultrasound; Diagnostic Test: Blood test AMH
AMH <1.3, at least 1 pregnancy and no miscarriageParticipants will not undergo any additional intervention compared to normal clinical assessment and routine testing of the ovarian reserve, which includes AMH and AFC. Investigators will follow standard stimulation protocols and medications.
Receives: Diagnostic Test: Transvaginal ultrasound; Diagnostic Test: Blood test AMH
AMH ≥ 1.3, at least 1 pregnancy or at least 1 miscarriageParticipants will not undergo any additional intervention compared to normal clinical assessment and routine testing of the ovarian reserve, which includes AMH and AFC. Investigators will follow standard stimulation protocols and medications.ons.
Receives: Diagnostic Test: Transvaginal ultrasound; Diagnostic Test: Blood test AMH
AMH ≥1.3, at least 1 pregnancy and no miscarriageParticipants will not undergo any additional intervention compared to normal clinical assessment and routine testing of the ovarian reserve, which includes AMH and AFC. Investigators will follow standard stimulation protocols and medications.
Receives: Diagnostic Test: Transvaginal ultrasound; Diagnostic Test: Blood test AMH

What is being measured

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

  1. AMH

    Anti-Müllerian Hormone Test

    Measured: 1 day

  2. AFC

    Antral follicle count

    Measured: 1 day

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 start9 Sep 2023
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Dec 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
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
2,059 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05969574
Sponsor's protocol ID
2305-ABU-007-LM
Status last verified
Jan 2026
First submitted
24 Jul 2023
Last updated
25 Jun 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • ESHRE working group on Ectopic Pregnancy; Kirk E, Ankum P, Jakab A, Le Clef N, Ludwin A, Small R, Tellum T, Toyli M, Van den Bosch T, Jurkovic D. Terminology for describing normally sited and ectopic pregnancies on ultrasound: ESHRE recommendations for good practice. Hum Reprod Open. 2020 Dec 16;2020(4):hoaa055. doi: 10.1093/hropen/hoaa055. eCollection 2020.

    PubMed 33354626
  • Tan J, Luo L, Jiang J, Yan N, Wang Q. Decreased Ovarian Reserves With an Increasing Number of Previous Early Miscarriages: A Retrospective Analysis. Front Endocrinol (Lausanne). 2022 Jun 10;13:859332. doi: 10.3389/fendo.2022.859332. eCollection 2022.

    PubMed 35757430
  • Bliddal S, Feldt-Rasmussen U, Forman JL, Hilsted LM, Larsen EC, Christiansen OB, Nielsen CH, Kolte AM, Nielsen HS. Anti-Mullerian hormone and live birth in unexplained recurrent pregnancy loss. Reprod Biomed Online. 2023 Jun;46(6):995-1003. doi: 10.1016/j.rbmo.2023.01.023. Epub 2023 Feb 3.

    PubMed 37055255
  • Stirrat GM. Recurrent miscarriage. II: Clinical associations, causes, and management. Lancet. 1990 Sep 22;336(8717):728-33. doi: 10.1016/0140-6736(90)92215-4.

    PubMed 1975901
  • Wang X, Chen C, Wang L, Chen D, Guang W, French J. Conception, early pregnancy loss, and time to clinical pregnancy: a population-based prospective study. Fertil Steril. 2003 Mar;79(3):577-84. doi: 10.1016/s0015-0282(02)04694-0.

    PubMed 12620443
  • Coomarasamy A, Dhillon-Smith RK, Papadopoulou A, Al-Memar M, Brewin J, Abrahams VM, Maheshwari A, Christiansen OB, Stephenson MD, Goddijn M, Oladapo OT, Wijeyaratne CN, Bick D, Shehata H, Small R, Bennett PR, Regan L, Rai R, Bourne T, Kaur R, Pickering O, Brosens JJ, Devall AJ, Gallos ID, Quenby S. Recurrent miscarriage: evidence to accelerate action. Lancet. 2021 May 1;397(10285):1675-1682. doi: 10.1016/S0140-6736(21)00681-4. Epub 2021 Apr 27.

    PubMed 33915096
  • Bunnewell SJ, Honess ER, Karia AM, Keay SD, Al Wattar BH, Quenby S. Diminished ovarian reserve in recurrent pregnancy loss: a systematic review and meta-analysis. Fertil Steril. 2020 Apr;113(4):818-827.e3. doi: 10.1016/j.fertnstert.2019.11.014. Epub 2020 Mar 4.

    PubMed 32145928
  • Seifer DB. Connecting the dots between oocyte quantity and quality in diminished ovarian reserve. Fertil Steril. 2021 Apr;115(4):890. doi: 10.1016/j.fertnstert.2021.01.020. Epub 2021 Mar 6. No abstract available.

    PubMed 33750616
  • Tarasconi B, Tadros T, Ayoubi JM, Belloc S, de Ziegler D, Fanchin R. Serum antimullerian hormone levels are independently related to miscarriage rates after in vitro fertilization-embryo transfer. Fertil Steril. 2017 Sep;108(3):518-524. doi: 10.1016/j.fertnstert.2017.07.001.

    PubMed 28865551
  • Lyttle Schumacher BM, Jukic AMZ, Steiner AZ. Antimullerian hormone as a risk factor for miscarriage in naturally conceived pregnancies. Fertil Steril. 2018 Jun;109(6):1065-1071.e1. doi: 10.1016/j.fertnstert.2018.01.039. Epub 2018 Jun 2.

    PubMed 29871793
  • Atasever M, Soyman Z, Demirel E, Gencdal S, Kelekci S. Diminished ovarian reserve: is it a neglected cause in the assessment of recurrent miscarriage? A cohort study. Fertil Steril. 2016 May;105(5):1236-1240. doi: 10.1016/j.fertnstert.2016.01.001. Epub 2016 Jan 21.

    PubMed 26806685
  • Leclercq E, de Saint Martin L, Bohec C, Le Martelot MT, Roche S, Alavi Z, Mottier D, Pasquier E. Blood anti-Mullerian hormone is a possible determinant of recurrent early miscarriage, yet not conclusive in predicting a further miscarriage. Reprod Biomed Online. 2019 Aug;39(2):304-311. doi: 10.1016/j.rbmo.2019.04.004. Epub 2019 Apr 12.

    PubMed 31186176
  • Jaswa EG, McCulloch CE, Simbulan R, Cedars MI, Rosen MP. Diminished ovarian reserve is associated with reduced euploid rates via preimplantation genetic testing for aneuploidy independently from age: evidence for concomitant reduction in oocyte quality with quantity. Fertil Steril. 2021 Apr;115(4):966-973. doi: 10.1016/j.fertnstert.2020.10.051. Epub 2021 Feb 12.

    PubMed 33583594

Questions about this trial

What is this clinical trial studying?

An observational study of Infertility, Female and Miscarriage, 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 1 inclusion and 7 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 25 Jun 2026. 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.

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?

AMH (time frame: 1 day). The study lists 2 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 NCT05969574, which also lists 13 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 25 Jun 2026; AzTrials last refreshed its copy on 8 Nov 2026.

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