Escitalopram Plasma Concentrations in Premenopausal and Postmenopausal Women (MENO-ES)

December 16, 2025 updated by: Imran Gokcen Yilmaz-Karaman, Eskisehir Osmangazi University
This observational cross-sectional case-control study aims to evaluate the effects of menopausal status on escitalopram metabolism in women. The study will include premenopausal and menopausal women aged 40-60 years who are currently receiving escitalopram treatment and have applied to the Psychiatry Clinic of Eskişehir Osmangazi University. The study aims to identify pharmacokinetic differences associated with hormonal status and to investigate their potential clinical implications. Findings from this research are expected to contribute to the development of evidence-based, individualized treatment strategies for women in menopausal transition.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

Participants' plasma escitalopram and desmethylescitalopram levels, mental disorder severity, anthropometric measurements, bioimpedance, CYP2C19 genotype analysis, estradiol and follicle-stimulating hormone (FSH) levels, and corrected QT interval (QTc) length will be assessed. In the preliminary analysis, participants carrying the CYP2C19*1 allele will be selected from the data of 78 participants for comparative analyses. Those with the dominant allele will be selected for final analyses.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
94

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Turkey (Türkiye)
      • Eskişehir, Turkey (Türkiye), 26040
        • Eskişehir Osmangazi University, Faculty of Medicine, Department of Psychiatry
        • Contact:
        • Contact:
        • Principal Investigator:
          • İmran G Yılmaz Karaman, Associate Professor
        • Sub-Investigator:
          • Tuğçe Doğan, MD
        • Sub-Investigator:
          • Aybeniz Civan Kahve, Associate Professor
        • Sub-Investigator:
          • Sinem Kocagil, MD
        • Sub-Investigator:
          • Ali E Altınöz, Professor Doctor
        • Sub-Investigator:
          • Başar Sırmagül, Professor Doctor

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Participants are women aged 40 to 60 years who have been diagnosed with major depressive disorder and/or generalized anxiety disorder and are currently receiving escitalopram treatment. All participants were recruited from the Psychiatry Clinic of Eskişehir Osmangazi University.

Description

Inclusion Criteria:

  • Aged 40 years or older and 60 years or younger
  • Diagnosed with major depressive disorder and/or generalized anxiety disorder by an independent psychiatrist (not a member of the research team)
  • Prescribed escitalopram treatment by an independent psychiatrist (not a member of the research team)
  • Receiving escitalopram treatment for at least one month and on a stable dose for at least one week
  • Willing to participate in the study and provide informed consent
  • Additional inclusion criterion for the menopausal group: Amenorrhea for at least one year (consistent with menopause diagnosis)
  • Additional inclusion criteria for the premenopausal group: Having regular menstrual cycles and being in the luteal phase (within 14 days after ovulation) of the menstrual cycle

Exclusion Criteria:

  • Diagnosis of intellectual disability, dementia, psychotic disorders, schizoaffective disorder, or bipolar disorder
  • Alcohol or substance use disorder
  • Diagnosis of hepatic failure, renal failure, or cardiac failure
  • Severe malnutrition
  • Presence of an active systemic infectious or inflammatory disease
  • Current use of hormone replacement therapy for menopause
  • Use of oral contraceptives
  • Pregnancy or breastfeeding
  • Use of medications known to affect escitalopram plasma concentration
  • Use of medications that affect the CYP2C19 enzyme
  • Detection of alleles other than the predominant CYP2C19*1 genotype in genetic analyses

Study Plan

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

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Premenopausal Women
Women aged 40-60 years, premenopausal, diagnosed with major depressive disorder and/or generalized anxiety disorder, and currently receiving escitalopram treatment.
Postmenopausal Women
Women aged 40-60 years, postmenopausal, diagnosed with major depressive disorder and/or generalized anxiety disorder, and currently receiving escitalopram treatment.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Dose-Related Plasma Escitalopram Concentrations
Time Frame: Up to 14 days
Plasma escitalopram concentrations will be measured in participants using therapeutic drug monitoring methods. The primary objective is to compare dose-related plasma escitalopram concentrations between premenopausal and menopausal women receiving escitalopram treatment.
Up to 14 days
Metabolite to Drug Ratios
Time Frame: Up to 14 days
Plasma escitalopram and desmethylescitalopram concentrations will be measured in participants using therapeutic drug monitoring methods. The primary objective of the study is to evaluate differences in drug metabolism by comparing metabolite-to-parent drug ratios between premenopausal and menopausal women receiving escitalopram.
Up to 14 days
Association between plasma S-desmethylescitalopram/escitalopram ratio and serum estradiol levels
Time Frame: Up to 14 days
The primary outcome is the evaluation of the relationship between the plasma S-desmethylescitalopram/escitalopram metabolite-to-parent drug ratio and serum estradiol concentrations in all participants. The study will test whether lower estradiol levels are associated with higher metabolite-to-drug ratios.
Up to 14 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Eskisehir Osmangazi University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
The Scientific and Technological Research Council of Turkey

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: İmran G Yılmaz Karaman, Associtate Professor Doctor, Eskişehir Osmangazi University, Faculty of Medicine

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
June 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 21, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 21, 2025

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 2, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 22, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 16, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • EskisehirOU 09.09.2025/22

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Participants' data will be stored anonymously in an online data repository. IPD will be shared as a study report after data completion is finished.

IPD Sharing Time Frame

We plan to finish data collection in January 2028, and we plan to publish IPD in 6 months after that.

IPD Sharing Access Criteria

IPD will be open to the public.

IPD Sharing Supporting Information Type

  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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