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Maternal Serum Progesterone Levels and Threatened Abortion in Lactating Pregnant Women

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What is being collected

Data Collection

Collected from today forward - Prospective
Who is being recruted

Abortion, Threatened+1

+ Urogenital Diseases

+ Female Urogenital Diseases and Pregnancy Complications

From 18 to 50 Years
+11 Eligibility Criteria
See all eligibility criteria
How is the trial designed

Cohort

Tracking disease incidence in order to identify risk factors and understand disease progression over time.
Observational
Study Start: January 2026
See protocol details

Summary

Principal SponsorProf. Dr. Cemil Tascıoglu Education and Research Hospital Organization
Study ContactBurak D Aydoğdu, M.D.
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: January 1, 2026

Actual date on which the first participant was enrolled.

This study focuses on the connection between a hormone called progesterone and the risk of early pregnancy loss in women who become pregnant while breastfeeding. The main goal is to understand the role of progesterone in these pregnancies, specifically looking at its levels during the first trimester and how it might impact the likelihood of experiencing threatened abortion, which is characterized by vaginal bleeding during early pregnancy. In this study, pregnant women who are breastfeeding will have their progesterone levels checked during the first trimester. The presence or absence of threatened abortion will be noted, and various factors such as clinical, obstetric, and demographic data will be recorded. The study aims to provide valuable insights into how progesterone levels might influence the risk of early pregnancy complications in this specific group of women. The findings could potentially improve how we assess risk, diagnose, and manage threatened abortion in women who conceive while breastfeeding.

Official TitleAssociation Between Maternal Serum Progesterone Levels and Threatened Abortion in Lactating Pregnant Women
Principal SponsorProf. Dr. Cemil Tascıoglu Education and Research Hospital Organization
Study ContactBurak D Aydoğdu, M.D.
Last updated: January 28, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

150 patients to be enrolled

Total number of participants that the clinical trial aims to recruit.

Cohort

These studies follow a group of individuals with common characteristics (such as a condition or birth year) over a specific period to study health outcomes or exposures.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Female

Biological sex of participants that are eligible to enroll.

From 18 to 50 Years

Range of ages for which participants are eligible to join.

Healthy volunteers allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Abortion, ThreatenedUrogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsPregnancy Complications

Criteria

6 inclusion criteria required to participate
Female participants aged 18 to 50 years.

Pregnant women who conceived during the lactation period.

Singleton pregnancy.

First-trimester pregnancy.

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5 exclusion criteria prevent from participating
Age under 18 years or over 50 years.

Multiple pregnancies.

Known chronic medical diseases.

Use of progesterone supplementation before serum progesterone measurement.

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Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
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