NCT05034250

Brief Summary

Multiple studies suggest a link between the iron status and the development of the endometrium. Therefore, a sufficient iron supply seems to relevant for female fertility and reproduction. To gain further insight on the effects of iron status on female fertility, a prospective study on infertile women und women with recurrent miscarriage will be conducted. In these, the iron status will be evaluated in detail. In addition, a control group of healthy women without infertility will be enrolled.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Oct 2021

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 19, 2021

Completed
2 months until next milestone

First Posted

Study publicly available on registry

September 5, 2021

Completed
26 days until next milestone

Study Start

First participant enrolled

October 1, 2021

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2024

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2024

Completed
Last Updated

October 23, 2023

Status Verified

October 1, 2023

Enrollment Period

2.4 years

First QC Date

July 19, 2021

Last Update Submit

October 19, 2023

Conditions

Keywords

Iron statusRecurrent MiscarriageInfertility

Outcome Measures

Primary Outcomes (1)

  • Serum ferritin in µg/L

    Evaluation of a complete iron status including serum ferritin in women with infertility, recurrent miscarriage and healthy controls

    6 months

Secondary Outcomes (4)

  • serum iron in µg/dL

    6 months

  • transferrin in mg/dL

    6 months

  • transferin-saturation in %

    6 months

  • C-reactive protein mg/dL

    6 months

Study Arms (3)

Women with infertility

The patient suffers from primary or secondary infertility, defined as the inability to conceive despite frequent unprotected sexual intercourse for at least 12 months.

Diagnostic Test: Blood sample

Women with recurrent miscarriage

The patient suffers from recurrent miscarriage, defined as three or more consecutive miscarriages before the 20th gestation week with the same partner.

Diagnostic Test: Blood sample

Healthy controls

The woman does neither suffer from infertility/sterility nor from recurrent miscarriage and is also otherwise healthy with regular cycles.

Diagnostic Test: Blood sample

Interventions

Blood sampleDIAGNOSTIC_TEST

Blood samples were taken from a peripheral vein as part of clinical routine. Subsequently, the iron status is determined.

Healthy controlsWomen with infertilityWomen with recurrent miscarriage

Eligibility Criteria

Age18 Years - 40 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Women will be invited to participate by medical professionals at the Department of Obstetrics and Gynecology of the Medical University of Vienna, Clinical Division of Gynecologic Endocrinology and Reproductive Medicine, using the above-mentioned criteria in the course of their admission to the outpatient clinics. Potential participants are informed about the procedure, clinical relevance and the balance of risk and benefits incurred through study participation. Patients willing to participate will express this through written affirmation (a "consent form"). Healthy controls will not receive compensation.

You may qualify if:

  • The patient suffers from primary or secondary infertility, defined as the inability to conceive despite frequent unprotected sexual intercourse for at least 12 months.
  • The patient has given her written informed consent after detailed information on the study by medical professionals at the Department of Obstetrics and Gynecology of the Medical University of Vienna.
  • The patient is \>18 and \<40 years old.

You may not qualify if:

  • Inflammatoric bowel disease, cardiac insufficiency, chronic kidney disease, any malignant diseases.
  • Polycystic ovary syndrome.
  • There is no "informed consent".
  • Women with recurrent miscarriage
  • The patient suffers from recurrent miscarriage, defined as three or more consecutive miscarriages before the 20th gestation week with the same partner.
  • The patient has given her written informed consent after detailed information on the study by medical professionals at the Department of Obstetrics and Gynecology of the Medical University of Vienna.
  • The patient is \>18 and \<40 years old.
  • Inflammatoric bowel disease, cardiac insufficiency, chronic kidney disease, any malignant diseases.
  • Polycystic ovary syndrome
  • There is no "informed consent".
  • Healthy controls
  • The woman does neither suffer from infertility/sterility nor from recurrent miscarriage and is also otherwise healthy with regular cycles.
  • The patient has given her written informed consent after detailed information on the study by medical professionals at the Department of Obstetrics and Gynecology of the Medical University of Vienna.
  • The patient is \>18 and \<40 years old.
  • Inflammatoric bowel disease, cardiac insufficiency, chronic kidney disease, any malignant diseases.
  • +2 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of Vienna

Vienna, 1090, Austria

RECRUITING

Related Publications (15)

  • Miller EM. The reproductive ecology of iron in women. Am J Phys Anthropol. 2016 Jan;159(Suppl 61):S172-95. doi: 10.1002/ajpa.22907.

    PMID: 26808104BACKGROUND
  • Cook JD. Adaptation in iron metabolism. Am J Clin Nutr. 1990 Feb;51(2):301-8. doi: 10.1093/ajcn/51.2.301.

    PMID: 2407101BACKGROUND
  • Hallberg L, Hogdahl AM, Nilsson L, Rybo G. Menstrual blood loss--a population study. Variation at different ages and attempts to define normality. Acta Obstet Gynecol Scand. 1966;45(3):320-51. doi: 10.3109/00016346609158455. No abstract available.

    PMID: 5922481BACKGROUND
  • Gao J, Zeng S, Sun BL, Fan HM, Han LH. Menstrual blood loss and hematologic indices in healthy Chinese women. J Reprod Med. 1987 Nov;32(11):822-6.

    PMID: 3430490BACKGROUND
  • Cheong RL, Kuizon MD, Tajaon RT. Menstrual blood loss and iron nutrition in Filipino women. Southeast Asian J Trop Med Public Health. 1991 Dec;22(4):595-604.

    PMID: 1820649BACKGROUND
  • Clancy KB, Nenko I, Jasienska G. Menstruation does not cause anemia: endometrial thickness correlates positively with erythrocyte count and hemoglobin concentration in premenopausal women. Am J Hum Biol. 2006 Sep-Oct;18(5):710-3. doi: 10.1002/ajhb.20538.

    PMID: 16917885BACKGROUND
  • Shahidi NT. Androgens and erythropoiesis. N Engl J Med. 1973 Jul 12;289(2):72-80. doi: 10.1056/NEJM197307122890205. No abstract available.

    PMID: 4575719BACKGROUND
  • Yang Q, Jian J, Katz S, Abramson SB, Huang X. 17beta-Estradiol inhibits iron hormone hepcidin through an estrogen responsive element half-site. Endocrinology. 2012 Jul;153(7):3170-8. doi: 10.1210/en.2011-2045. Epub 2012 Apr 25.

    PMID: 22535765BACKGROUND
  • Ikeda Y, Tajima S, Izawa-Ishizawa Y, Kihira Y, Ishizawa K, Tomita S, Tsuchiya K, Tamaki T. Estrogen regulates hepcidin expression via GPR30-BMP6-dependent signaling in hepatocytes. PLoS One. 2012;7(7):e40465. doi: 10.1371/journal.pone.0040465. Epub 2012 Jul 11.

    PMID: 22792339BACKGROUND
  • Milman N, Kirchhoff M, Jorgensen T. Iron status markers, serum ferritin and hemoglobin in 1359 Danish women in relation to menstruation, hormonal contraception, parity, and postmenopausal hormone treatment. Ann Hematol. 1992 Aug;65(2):96-102. doi: 10.1007/BF01698138.

    PMID: 1511065BACKGROUND
  • Milman N, Rosdahl N, Lyhne N, Jorgensen T, Graudal N. Iron status in Danish women aged 35-65 years. Relation to menstruation and method of contraception. Acta Obstet Gynecol Scand. 1993 Nov;72(8):601-5. doi: 10.3109/00016349309021150.

    PMID: 8259744BACKGROUND
  • Rushton DH, Ramsay ID, Gilkes JJ, Norris MJ. Ferritin and fertility. Lancet. 1991 Jun 22;337(8756):1554. doi: 10.1016/0140-6736(91)93255-8. No abstract available.

    PMID: 1675411BACKGROUND
  • Chavarro JE, Rich-Edwards JW, Rosner BA, Willett WC. Iron intake and risk of ovulatory infertility. Obstet Gynecol. 2006 Nov;108(5):1145-52. doi: 10.1097/01.AOG.0000238333.37423.ab.

    PMID: 17077236BACKGROUND
  • Sami AS, Suat E, Alkis I, Karakus Y, Guler S. The role of trace element, mineral, vitamin and total antioxidant status in women with habitual abortion. J Matern Fetal Neonatal Med. 2021 Apr;34(7):1055-1062. doi: 10.1080/14767058.2019.1623872. Epub 2019 Jul 7.

    PMID: 31282231BACKGROUND
  • Hou Y, Zhang S, Wang L, Li J, Qu G, He J, Rong H, Ji H, Liu S. Estrogen regulates iron homeostasis through governing hepatic hepcidin expression via an estrogen response element. Gene. 2012 Dec 15;511(2):398-403. doi: 10.1016/j.gene.2012.09.060. Epub 2012 Oct 3.

    PMID: 23041085BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

Blood samples taken as part of routine clinical practice: Total serum iron, serum ferritin, transferrin, transferrin saturation, C-reactive protein

MeSH Terms

Conditions

Abortion, HabitualInfertilityAnemia, Iron-Deficiency

Interventions

Blood Specimen Collection

Condition Hierarchy (Ancestors)

Abortion, SpontaneousPregnancy ComplicationsFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesGenital DiseasesAnemia, HypochromicAnemiaHematologic DiseasesHemic and Lymphatic DiseasesIron DeficienciesIron Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Specimen HandlingClinical Laboratory TechniquesDiagnostic Techniques and ProceduresDiagnosisPuncturesSurgical Procedures, OperativeInvestigative Techniques

Study Officials

  • Johannes Ott, MD, PhD

    Medical University of Vienna

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, Consultant Physician

Study Record Dates

First Submitted

July 19, 2021

First Posted

September 5, 2021

Study Start

October 1, 2021

Primary Completion

March 1, 2024

Study Completion

May 1, 2024

Last Updated

October 23, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will not share

Locations